AIR CONDITIONER (MULTI TYPE) SERVICE MANUALdms.hvacpartners.com/docs/1010/public/05/a13-002.pdfAIR...

AIR CONDITIONER (MULTI TYPE)

SERVICE MANUALOutdoor Unit< SUPER HEAT RECOVERY MULTI-i >Model name:MMY-MAP0724FT9ULMMY-MAP0964FT9ULMMY-MAP1204FT9ULMMY-MAP0724FT6ULMMY-MAP0964FT6ULMMY-MAP1204FT6UL

Flow Selector Unit (FS unit)Model name:RBM-Y0383FULRBM-Y0613FULRBM-Y0963FULThis service manual provides relevant explanations about new outdoor unit (SHRM-i).Please refer to the following service manuals for each indoor units.

PRINTED IN JAPAN, Jun, 2013, TOMO

FILE No. A13-002

<4-Way Cassette Type> ........................<Compact 4-Way Cassette Type> ........<Ceiling Type> .......................................<High Wall Type> ...................................

<Medium Static Ducted Type> ..................

<Slim Ducted Type> ..............................<High Static Ducted Type> ...................

A10-019

A11-011

A11-020

Revision 1 : Jun., 2013Revision 2 : Jul., 2013Revision 3 : Dec., 2013Revision 4 : Sep., 2014

– 2 –

CONTENTSPrecautions for Safety ................................................................................................ 7

New Refrigerant (R410A) .......................................................................................... 15

1. SPECIFICATIONS .................................................................................................. 171-1. 208/230V model .................................................................................................................. 171-2. 460V model ......................................................................................................................... 21

2. WIRING DIAGRAM ................................................................................................. 252-1. Outdoor Unit ....................................................................................................................... 252-2. FS unit (Flow Selector unit) ............................................................................................... 29

3. PARTS RATING ...................................................................................................... 313-1. Outdoor Unit (208/230V model)......................................................................................... 313-2. Outdoor Unit (460V model) ................................................................................................ 323-3. Outdoor Inverter (208/230V model) .................................................................................. 333-4. Outdoor Inverter (460V model) ......................................................................................... 343-5. Parts Layout in Outdoor Unit ............................................................................................ 353-6. Parts Layout in Inverter Assembly ................................................................................... 373-7. Outdoor (Inverter) print circuit board ............................................................................... 41

3-7-1. Interface P.C. board (MCC-1606) ........................................................................................ 413-7-2. Inverter P.C. board for compressor (MCC-1595) A3-IPDU

For 208/230V model : MMY-MAP∗∗∗4FT9UL .................................................................. 423-7-3. Inverter P.C. board for compressor (MCC-1596) A3-IPDU

For 460V model : MMY-MAP∗∗∗4FT6UL.......................................................................... 433-7-4. Inverter P.C. board for fan motor (MCC-1610) FAN-IPDU ................................................. 443-7-5. Noise Filter P.C. board (MCC-1608 -A, -B)

For 208/230V model : MMY-MAP∗∗∗4FT9UL .................................................................. 453-7-6. Noise Filter P.C. board (MCC-1625 -A, -B, -C)

For 460V model : MMY-MAP∗∗∗4FT6UL.......................................................................... 46

4. REFRIGERANT PIPING SYSTEMATIC DRAWING............................................... 47

5. SYSTEM REFRIGEERANT PIPING SCHEMATIC DIAGRAMS ............................ 515-1. All Cooling mode (Operation of cooling only) when outside temperature is high

(Standard: 50°F or higher) / Defrost mode ....................................................................... 525-2. All Cooling mode (Operation of cooling only) when outside temperature is low

(Standard: 50°F or lower) ................................................................................................... 535-3. All Heating mode (Operation of heating only) ................................................................. 545-4. Mainly cooling mode (Operating cooling function mainly, collective operation of

cooling and heating operation)......................................................................................... 555-5. Mainly heating mode (Operating heating function mainly, collective operation of

cooling and heating operation)......................................................................................... 565-6. Emergency operation (All cooling operation at backup of the header unit) ................ 575-7. Emergency operation (All heating operation at backup of the header unit) ................ 585-8. Refrigerant recovery (during pump-down operation) of the troubled outdoor unit)

(In case of trouble of follower unit) .................................................................................. 59

6. CONTROL OUTLINE.............................................................................................. 60

7. APPLIED CONTROL AND FUNCTION ................................................................. 697-1. Applied Control for Outdoor Unit ..................................................................................... 697-2. Outdoor Fan High Static Pressure Shift .......................................................................... 69

– 3 –

7-3. Applied Control Using Optional Board for Outdoor Unit ............................................... 707-3-1. Power peak-cut Control (Standard): TCB-PCDM4UL ........................................................ 717-3-2. Power peak-cut Control (Extended) : TCB-PCDM4UL ...................................................... 727-3-3. Snowfall Fan Control : TCB-PCMO4UL .............................................................................. 737-3-4. External master ON/OFF Control : TCB-PCMO4UL .......................................................... 737-3-5. Night operation (sound reduction) Control : TCB-PCMO4UL .......................................... 747-3-6. Operation Mode Selection Control : TCB-PCMO4UL........................................................ 757-3-7. Error/Operation Output : TCB-PCIN4UL ............................................................................ 767-3-8. Compressor Operation Output : TCB-PCIN4UL ................................................................ 777-3-9. Operating Rate Output : TCB-PCIN4UL ............................................................................. 78

8. TEST OPERATION ................................................................................................. 798-1. Procedure and Summary of Test Operation .................................................................... 798-2. Check Items before Test Operation (before poweringon) .............................................. 808-3. Check at Main Power-on .................................................................................................... 858-4. Address Setup .................................................................................................................... 86

8-4-1. Precautions .......................................................................................................................... 868-4-2. Address Setup and Check Procedure ............................................................................... 868-4-3. Address Setup Procedure ................................................................................................... 878-4-4. Check after Address Setup when Central Control System Is Connected .................... 1008-4-5. Setting when connecting multiple indoor units to a FS (Flow Selector) unit .............. 1018-4-6. How to set up the cooling only indoor unit ..................................................................... 102

8-5. Troubleshooting in Test Operation ................................................................................. 1038-5-1. A Check Code Is Displayed on the Remote Controller .................................................. 1038-5-2. Operation from the indoor remote controller is not accepted, and a check code is

displayed on the 7-segment display of the interface PC board of the header unit. .... 1048-5-3. There is no display of a check code on the 7-segment display on the interface PC

board of the header unit, although there is indoor unit that is not accepting operationfrom the indoor remote controller. ................................................................................... 104

8-5-4. In checking the number of connected outdoor units and connected indoor units afteraddress setup, a lower number of connected units is displayed.(There are outdoor/indoor units that do not operate in a test operation.) ................... 105

8-6. Test Operation Check ...................................................................................................... 1078-6-1. Fan Check ........................................................................................................................... 1078-6-2. Cooling/heating test operation check.............................................................................. 108

8-7. Confirmation of Test Operation ...................................................................................... 1128-7-1. Function to Start/Stop (ON/OFF) Indoor Unit from Outdoor Unit ................................. 1128-7-2. Error Clearing Function .................................................................................................... 1188-7-3. Remote Controller Distinction Function.......................................................................... 1208-7-4. Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit ........................ 1218-7-6. Solenoid Valve Forced Open/Close Function in Outdoor Unit ...................................... 1228-7-7. Fan Operation Check in Outdoor Unit ............................................................................. 1238-7-8. Abnormal Outdoor Unit Discrimination Method By Fan Operating Function .............. 1248-7-9. Manual Adjustment Function of Outside Temperature (TO) Sensor ............................. 1258-7-10. Monitor Function of Remote Controller Switch ........................................................... 127

9. TROUBLESHOOTING .......................................................................................... 1299-1. Overview ........................................................................................................................... 1299-2. Troubleshooting Method ................................................................................................. 1309-3. Troubleshooting Based on Information Displayed on Remote Controller ................. 1359-4. Check Codes Displayed on Remote Controller and SMMS-i Outdoor Unit

(7-Segment Display on I/F Board) and Locations to Be Checked ............................... 1399-5. Diagnosis procedure for each check code .................................................................... 1549-6. 7-Segment Display Function ........................................................................................... 1849-7. Oil Level Judgment Display ............................................................................................ 1909-8. Leakage/Clogging of Refrigerating Cycle Circuit ......................................................... 194

9-8-1. Flow Selector Unit (FS Unit) ............................................................................................. 1989-8-2. Troubleshooting when Multiple Indoor Units are Connected to Cool/Heat FS Unit .... 201

– 4 –

9-9. Sensor Characteristics .................................................................................................... 2029-10. Pressure sensor output check ...................................................................................... 205

10. BACKUP OPERATION (EMERGENCY OPERATION) ...................................... 20710-1. Note for Backup Operation ............................................................................................ 20710-2. Compressor Backup Operation Setting ....................................................................... 20810-3. Backup Setup for Outdoor Unit .................................................................................... 209

11. OUTDOOR UNIT REFRIGERANT RECOVERY METHOD ............................... 21011-1. Refrigerant Recovery from Failed Outdoor Unit (Pump-Down) ................................. 210

11-1-1. Note for refrigerant recovery operation ....................................................................... 21011-1-2. Refrigerant recovery procedure A

(Case of no outdoor unit backup operation setting) ................................................... 21011-2. How to Operate System While Failed Outdoor Unit Being Repaired ........................ 21411-3. Work procedure after Repair ......................................................................................... 215

12. REPLACING COMPRESSORS ......................................................................... 21612-1. Compressor Replacement Procedure (Outline) .......................................................... 21612-2. Replacement of Compressors ...................................................................................... 21712-3. Check Procedure to Search Cause of Compressor Oil Shortage ............................. 221

13. OUTDOOR UNIT PARTS REPLACEMENT METHODS .................................... 223

14. P.C. BOARD EXCHANGE PROCEDURES........................................................ 24314-1. List of service P.C. boards ............................................................................................. 24314-2. Configuration of inverter assembly .............................................................................. 24314-3. Interface board replacement procedure....................................................................... 24514-4. Comp-IPDU P.C. Board (MCC-1595) replacement procedure ..................................... 24614-5. Comp-IPDU P.C. Board (MCC-1595) replacement procedure ..................................... 24814-6. Fan IPDU P.C. board (MCC-1610) replacement procedure ......................................... 25014-7. Noise Filter P.C. Board (MCC-1608 A, B) Replacement Procedure ............................ 25114-8. Noise Filter P.C. Board (MCC-1625 A, B, C) .................................................................. 254

15. EXPLODED DIAGRAM / PARTS LIST .............................................................. 25715-1. MMY-MAP0724FT9UL..................................................................................................... 25715-2. MMY-MAP0964FT9UL, MMY-MAP1204FT9UL .............................................................. 26415-3. MMY-MAP0724FT6UL..................................................................................................... 27115-4. MMY-MAP0964FT6UL, MMY-MAP1204FT6UL .............................................................. 27815-5. Flow Selector Unit .......................................................................................................... 285

– 5 –

Generic Denomination: Air Conditioner

Definition of Qualified Installer or Qualified Service PersonThe air conditioner must be installed, maintained, repaired and removed by a qualified installer or qualifiedservice person. When any of these jobs is to be done, ask a qualified installer or qualified service person to dothem for you.

Definition of Protective GearWhen the air conditioner is to be transported, installed, maintained, repaired or removed, wear protectivegloves and ‘safety’ work clothing.In addition to such normal protective gear, wear the protective gear described below when undertaking thespecial work detailed in the table below.Failure to wear the proper protective gear is dangerous because you will be more susceptible to injury, burns,electric shocks and other injuries.

Work undertaken

All types of workProtective gloves‘Safety’ working clothing

Gloves to provide protection for electricians and from heatInsulating shoesClothing to provide protection from electric shock

Helmets for use in industry

Shoes with additional protective toe cap

Gloves to provide protection for electricians and from heat

Electrical-related work

Work done at heights(50 cm or more)

Transportation of heavy objects

Repair of outdoor unit

Protective gear worn

Indication Explanation

DANGER Indicates contents assumed that an imminent danger causing a death or serious injury ofthe repair engineers and the third parties when an incorrect work has been executed.

Indicates possibilities assumed that a danger causing a death or serious injury of therepair engineers, the third parties, and the users due to troubles of the product after workwhen an incorrect work has been executed.

Indicates contents assumed that an injury or property damage (*) may be caused on therepair engineers, the third parties, and the users due to troubles of the product after workwhen an incorrect work has been executed.

WARNING

CAUTION

Indication Explanation

Indicates prohibited items (Forbidden items to do)The sentences near an illustrated mark describe the concrete prohibited contents.

Indicates mandatory items (Compulsory items to do)The sentences near an illustrated mark describe the concrete mandatory contents.

Indicates cautions (Including danger / warning)The sentences or illustration near or in an illustrated mark describe the concrete cautious contents.

The important contents concerned to the safety are described on the product itself and on this ServiceManual.Please read this Service Manual after understanding the described items thoroughly in the following contents(Indications/Illustrated marks), and keep them.

[Explanation of indications]

* Property damage: Enlarged damage concerned to property, furniture, and domestic animal/pet

[Explanation of illustrated marks]

– 6 –

Warning indication Description

WARNING

ELECTRICAL SHOCK HAZARDDisconnect all remote electric power supplies before servicing.

CAUTION

High temperature parts.You might get burned when removing this panel.

DH79295001

WARNING: RISK OF ELECTRIC SHOCK. CAN CAUSE INJURY ORDEATH: DISCONNECT ALL REMOTE

ELECTRIC POWER SUPPLIES BEFORE SERVICING

ELECTRICAL SHOCK HAZARDRISQUE D'ÉLECTROCUTION

ATTENTION: RISQUE DEDÉCHARGE ÉLECTRIQUE POUVANT CAUSER DES

BLESSURES OU LA MORT. DÉCONNECTER TOUTES LES ALIMENTATIONS ÉLECTRIQUES AVANT L'ENTRETIEN

This product may contain chemicals known to the stateof California to cause cancer, or birth defects, or otherreproductive harm.

Warning Indications on the Air Conditioner Unit[Confirmation of warning label on the main unit]Confirm that labels are indicated on the specified positions.If removing the label during parts replace, stick it as the original.

– 7 –

Precautions for SafetyThe manufacturer shall not assume any liability for the damage caused by not observing the description of thismanual.

DANGER

Turn offbreaker.

Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breakerfor both the indoor and outdoor units to the OFF position. Otherwise, electric shocks may result.

Electric shockhazard

Stay onprotection

Prohibition

Before opening the intake grille of the indoor unit or service panel of the outdoor unit, set the circuitbreaker to the OFF position.Failure to set the circuit breaker to the OFF position may result in electric shocks through contact with theinterior parts.Only a qualified installer (*1) or qualified service person (*1) is allowed to remove the intake grille of theindoor unit or service panel of the outdoor unit and do the work required.

Before starting to repair the outdoor unit fan or fan guard, be absolutely sure to set the circuit breaker tothe OFF position, and place a “Work in progress” sign on the circuit breaker.

When cleaning the filter or other parts of the indoor unit, set the circuit breaker to OFF without fail, andplace a “Work in progress” sign near the circuit breaker before proceeding with the work.

When you have noticed that some kind of trouble (such as when an error display has appeared, there is asmell of burning, abnormal sounds are heard, the air conditioner fails to cool or heat or water is leaking)has occurred in the air conditioner, do not touch the air conditioner yourself but set the circuit breaker tothe OFF position, and contact a qualified service person. Take steps to ensure that the power will not beturned on (by marking “out of service” near the circuit breaker, for instance) until qualified service personarrives. Continuing to use the air conditioner in the trouble status may cause mechanical problems toescalate or result in electric shocks or other failure.

When you access inside of the service panel to repair electric parts, wait for about five minutes afterturning off the breaker. Do not start repairing immediately.Otherwise you may get electric shock bytouching terminals of high-voltage capacitors. Natural discharge of the capacitor takes about five minutes.

Place a “Work in progress” sign near the circuit breaker while the installation, maintenance, repair orremoval work is being carried out.There is a danger of electric shocks if the circuit breaker is set to ON by mistake.

If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical partswith the electrical parts box cover of one or more of the indoor units and the service panel of the outdoorunit removed in order to find out exactly where the trouble lies, wear insulated heat-resistant gloves,insulated boots and insulated work overalls, and take care to avoid touching any live parts.You may receive an electric shock if you fail to heed this warning. Only qualified service person (*1) isallowed to do this kind of work.

Before operating the air conditioner after having completed the work, check that the electrical parts boxcover of the indoor unit and service panel of the outdoor unit are closed, and set the circuit breaker to theON position.You may receive an electric shock if the power is turned on without first conducting these checks.

– 8 –

WARNING

Genera

Check earthwires.

Use specifiedparts.

Prohibition ofmodification.

Before starting to repair the air conditioner, read carefully through the Service Manual, and repair the airconditioner by following its instructions.

Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of the mainunit, otherwise an electric shock is caused when a leak occurs.If the earth wire is not correctly connected,contact an electric engineer for rework.

Do not modify the products.Do not also disassemble or modify the parts.It may cause a fire, electric shock or injury.

When any of the electrical parts are to be replaced, ensure that the replacement parts satisfy thespecifications given in the Service Manual (or use the parts contained on the parts list in the Service Manual).Use of any parts which do not satisfy the required specifications may give rise to electric shocks, smokingand/or a fire.

Only qualified service person (*1) is allowed to repair the air conditioner.Repair of the air conditioner by unqualified person may give rise to a fire, electric shocks, injury, waterleaks and/or other problems.

Do not use any refrigerant different from the one specified for complement or replacement.Otherwise, abnormally high pressure may be generated in the refrigeration cycle, which may result in afailure or explosion of the product or an injury to your body.

Only a qualified installer (*1) or qualified service person (*1) is allowed to carry out the electrical work ofthe air conditioner.Under no circumstances must this work be done by an unqualified individual since failure to carry out thework properly may result in electric shocks and/or electrical leaks.

When transporting the air conditioner, wear shoes with protective toe caps, protective gloves and otherprotective clothing.

When connecting the electrical wires, repairing the electrical parts or undertaking other electrical jobs,wear gloves to provide protection for electricians and from heat, insulating shoes and clothing to provideprotection from electric shocks.Failure to wear this protective gear may result in electric shocks.

Electrical wiring work shall be conducted according to law and regulation in the community and installationmanual. Failure to do so may result in electrocution or short circuit.

Only a qualified installer (*1) or qualified service person (*1) is allowed to undertake work at heights usinga stand of 19.7 in (50 cm) or more or to remove the intake grille of the indoor unit to undertake work.

When working at heights, use a ladder which complies with the ISO 14122 standard, and follow theprocedure in the ladder fs instructions.Also wear a helmet for use in industry as protective gear to undertake the work.

When working at heights, put a sign in place so that no-one will approach the work location, beforeproceeding with the work.Parts and other objects may fall from above, possibly injuring a person below.

When executing address setting, test run, or troubleshooting through the checking window on the electricparts box, put on insulated gloves to provide protection from electric shock. Otherwise you may receive anelectric shock.

Do not touch the aluminum fin of the outdoor unit.You may injure yourself if you do so. If the fin must be touched for some reason, first put on protectivegloves and safety work clothing, and then proceed.

Do not climb onto or place objects on top of the outdoor unit.You may fall or the objects may fall off of the outdoor unit and result in injury.

When transporting the air conditioner, do not take hold of the bands around the packing carton.You may injure yourself if the bands should break.

Be sure that a heavy unit (10kg or heavier) such as a compressor is carried by two persons.

Places where ambient temperature falls below 5˚F (–15˚C) for more then 72 hours running. The outdoorheat exchanger may be damaged by the frost.

After completing the repair or relocation work, check that the ground wires are connected properly.

Be sure to connect earth wire. (Grounding work) Incomplete grounding causes an electric shock.Do not connect ground wires to gas pipes, water pipes, and lightning rods or ground wires for telephone wires.

– 9 –

Do not bring achild close to

the equipment.

If, in the course of carrying out repairs, it becomes absolutely necessary to check out the electrical partswith the electrical parts box cover of one or more of the indoor units and the service panel of the outdoorunit removed in order to find out exactly where the trouble lies, put a sign in place so that no-one willapproach the work location before proceeding with the work. Third-party individuals may enter the worksite and receive electric shocks if this warning is not heeded.

Insulatingmeasures

Connect the cut-off lead wires with crimp contact, etc., put the closed end side upward and then apply awatercut method, otherwise a leak or production of fire is caused at the users’ side.

No fire

Refrigerant

Assembly/Wiring

Insulatorcheck

When performing repairs using a gas burner, replace the refrigerant with nitrogen gas because the oil thatcoats the pipes may otherwise burn.When repairing the refrigerating cycle, take the following measures.1) Be attentive to fire around the cycle. When using a gas stove, etc., be sure to put out fire before work; otherwise the oil mixed with refrigerant gas may catch fire.2) Do not use a welder in the closed room. When using it without ventilation, carbon monoxide poisoning may be caused.3) Do not bring inflammables close to the refrigerant cycle, otherwise fire of the welder may catch the inflammables.

The refrigerant used by this air conditioner is the R410A.

After the work has finished, be sure to use an insulation tester set (500V Megger) to check the resistanceis 1MΩ. or more between the charge section and the non-charge metal section (Earth position).If the resistance value is low, a disaster such as a leak or electric shock is caused at user fs side.

Ventilation

When the refrigerant gas leaks during work, execute ventilation.If the refrigerant gas touches to a fire, poisonous gas generates. A case of leakage of the refrigerant andthe closed room full with gas is dangerous because a shortage of oxygen occurs. Be sure to executeventilation.

After repair work, surely assemble the disassembled parts, and connect and lead the removed wires as before.Perform the work so that the cabinet or panel does not catch the inner wires.If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or fire is caused atuser fs side.

Check the used refrigerant name and use tools and materials of the parts which match with it.For the products which use R410A refrigerant, the refrigerant name is indicated at a position on theoutdoor unit where is easy to see. To prevent miss-charging, the route of the service port is changed fromone of the former R22.

For an air conditioner which uses R410A, never use other refrigerant than R410A. For an air conditionerwhich uses other refrigerant (R22, etc.), never use R410A.If different types of refrigerant are mixed, abnormal high pressure generates in the refrigerating cycle andan injury due to breakage may be caused.

Do not charge refrigerant additionally. If charging refrigerant additionally when refrigerant gas leaks, therefrigerant composition in the refrigerating cycle changes resulted in change of air conditionercharacteristics or refrigerant over the specified standard amount is charged and an abnormal highpressure is applied to the inside of the refrigerating cycle resulted in cause of breakage or injury.Therefore if the refrigerant gas leaks, recover the refrigerant in the air conditioner, execute vacuuming,and then newly recharge the specified amount of liquid refrigerant.In this time, never charge the refrigerant over the specified amount.

When recharging the refrigerant in the refrigerating cycle, do not mix the refrigerant or air other thanR410A into the specified refrigerant. If air or others is mixed with the refrigerant, abnormal high pressuregenerates in the refrigerating cycle resulted in cause of injury due to breakage.

After installation work, check the refrigerant gas does not leak. If the refrigerant gas leaks in the room,poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove though therefrigerant gas itself is innocuous.

Never recover the refrigerant into the outdoor unit. When the equipment is moved or repaired, be sure torecover the refrigerant with recovering device.The refrigerant cannot be recovered in the outdoor unit; otherwise a serious accident such as breakage orinjury is caused.

When the air conditioner has been installed or relocated, follow the instructions in the Installation Manual andpurge the air completely so that no gases other than the refrigerant will be mixed in the refrigerating cycle.Failure to purge the air completely may cause the air conditioner to malfunction.

– 10 –

Do notoperate theunit with thevalve closed.

Compulsion

Check afterrepair

Check afterreinstallation

Cooling check

When the refrigerant gas leaks, find up the leaked position and repair it surely.If the leaked position cannot be found up and the repair work is interrupted, pump-down and tighten theservice valve, otherwise the refrigerant gas may leak into the room.The poisonous gas generates when gas touches to fire such as fan heater, stove or cocking stove thoughthe refrigerant gas itself is innocuous.When installing equipment which includes a large amount of charged refrigerant such as a multi airconditioner in a sub-room, it is necessary that the density does not the limit even if the refrigerant leaks.If the refrigerant leaks and exceeds the limit density, an accident of shortage of oxygen is caused.

Once the repair work has been completed, check for refrigerant leaks, and check the insulation resistanceand water drainage.Then perform a trial run to check that the air conditioner is running properly.

Check the following matters before a test run after repairing piping.• Connect the pipes surely and there is no leak of refrigerant.• The valve is opened.Running the compressor under condition that the valve closes causes an abnormal high pressure resultedin damage of the parts of the compressor and etc. and moreover if there is leak of refrigerant at connectingsection of pipes, the air is sucked and causes further abnormal high pressure resulted in burst or injury.

Only a qualified installer (*1) or qualified service person (*1) is allowed to relocate the air conditioner. It isdangerous for the air conditioner to be relocated by an unqualified individual since a fire, electric shocks,injury, water leakage, noise and/or vibration may result.

When the service panel of the outdoor unit is to be opened in order for the compressor or the area aroundthis part to be repaired immediately after the air conditioner has been shut down, set the circuit breaker tothe OFF position, and then wait at least 10 minutes before opening the service panel.If you fail to heed this warning, you will run the risk of burning yourself because the compressor pipes andother parts will be very hot to the touch. In addition, before proceeding with the repair work, wear the kindof insulated heat-resistant gloves designed to protect electricians.

Tighten the flare nut with a torque wrench in the specified manner.Excessive tighten of the flare nut may cause a crack in the flare nut after a long period, which may resultin refrigerant leakage.

Nitrogen gas must be used for the airtight test.

The charge hose must be connected in such a way that it is not slack.

For the installation/moving/reinstallation work, follow to the Installation Manual.If an incorrect installation is done, a trouble of the refrigerating cycle, water leak, electric shock or fire is caused.

After repair work has finished, check there is no trouble. If check is not executed, a fire, electric shock orinjury may be caused. For a check, turn off the power breaker.

Check the following items after reinstallation.1) The earth wire is correctly connected.2) The power cord is not caught in the product.3) There is no inclination or unsteadiness and the installation is stable.If check is not executed, a fire, an electric shock or an injury is caused.

Take care not to get burned by compressor pipes or other parts when checking the cooling cycle whilerunning the unit as they get heated while running. Be sure to put on gloves providing protection for electricshock and heat.

When the service panel of the outdoor unit is to be opened in order for the fan motor, reactor, inverter orthe areas around these parts to be repaired immediately after the air conditioner has been shut down, setthe circuit breaker to the OFF position, and then wait at least 10 minutes before opening the service panel.If you fail to heed this warning, you will run the risk of burning yourself because the fan motor, reactor,inverter heat sink and other parts will be very hot to the touch.In addition, before proceeding with the repair work, wear the kind of insulated heat-resistant glovesdesigned to protect electricians.

When carrying out the pump-down work shut down the compressor before disconnecting the refrigerant pipe.Disconnecting the refrigerant pipe with the service valve left open and the compressor still operating willcause air, etc. to be sucked in, raising the pressure inside the refrigeration cycle to an abnormally highlevel, and possibly resulting in reputing, injury, etc.

Be sure to fix the screws back which have been removed for installation or other purposes.

After repair work (installation of front panel and cabinet) has finished, execute a test run to check there isno generation of smoke or abnormal sound.If check is not executed, a fire or an electric shock is caused. Before test run, install the front panel and cabinet.

– 11 –

Installation

Only a qualified installer (*1) or qualified service person (*1) is allowed to install the air conditioner. If theair conditioner is installed by an unqualified individual, a fire, electric shocks, injury, water leakage, noiseand/or vibration may result.

Before starting to install the air conditioner, read carefully through the Installation Manual, and follow itsinstructions to install the air conditioner.

Be sure to use the company-specified products for the separately purchased parts. Use of non-specifiedproducts may result in fire, electric shock, water leakage or other failure. Have the installation performedby a qualified installer.

Do not supply power from the power terminal block equipped on the outdoor unit to another outdoor unit.Capacity overflow may occur on the terminal block and may result in fire.

Do not install the air conditioner in a location that may be subject to a risk of expire to a combustible gas.If a combustible gas leaks and becomes concentrated around the unit, a fire may occur.

Install the indoor unit at least 8.25 ft (2.5 m) above the floor level since otherwise the users may injurethemselves or receive electric shocks if they poke their fingers or other objects into the indoor unit whilethe air conditioner is running.

Install a circuit breaker that meets the specifications in the installation manual and the stipulations in thelocal regulations and laws.

Install a circuit breaker that meets the specifications in the installation manual and the stipulations in thelocal regulations and laws.

Install the circuit breaker where it can be easily accessed by the qualified service person (*1).

If you install the unit in a small room, take appropriate measures to prevent the refrigerant from exceedingthe limit concentration even if it leaks. Consult the dealer from whom you purchased the air conditionerwhen you implement the measures. Accumulation of highly concentrated refrigerant may cause an oxygendeficiency accident.

Do not place any combustion appliance in a place where it is directly exposed to the wind of air conditioner,otherwise it may cause imperfect combustion.

Explanations given to user• If you have discovered that the fan grille is damaged, do not approach the outdoor unit but set the circuit

breaker to the OFF position, and contact a qualified service person to have the repairs done.Do not set the circuit breaker to the ON position until the repairs are completed.

Relocation• Only a qualified installer (*1) or qualified service person (*1) is allowed to relocate the air conditioner.

It is dangerous for the air conditioner to be relocated by an unqualified individual since a fire, electric shocks,injury, water leakage, noise and/or vibration may result.

• When carrying out the pump-down work shut down the compressor before disconnecting the refrigerant pipe.Disconnecting the refrigerant pipe with the service valve left open and the compressor still operating willcause air, etc. to be sucked in, raising the pressure inside the refrigeration cycle to an abnormally high level,and possibly resulting in reputing, injury, etc.

(*1) Refer to the “Definition of Qualified Installer or Qualified Service Person.”

– 12 –

Carrying in the Outdoor Unit

CAUTION

Handle the outdoor unit carefully, observing the following items.• To use a forklift or other machinery for loading / unloading in transportation, insert the prongs of the forklift

into the rectangular holes for handling as shown below.• To lift up the unit, insert a rope capable of bearing the weight of the unit into the rectangular holes shown

below.Tie the unit from 4 sides.(Apply padding in positions where the rope comes in contact with the outdoor unit so that no damage iscaused to the outer surface of the outdoor unit.)(There are reinforcing plates on the side surfaces, so the rope cannot be passed through.)

– 13 –

(A) (B) Unit: in (mm)

Model type

MAP0724FT9UL(A)

(B)

19.3” (490) 14.6” (370) 26.8” (680) 583” (246)

Model type (lbs (kg))X

(in (mm))Y

(in (mm))Z

(in (mm))

MAP0724FT6UL 20.9” (530) 15.7” (400) 25.8” (655) 658” (298)

Screw size

M8M8M4

4.1 to 4.8 (5.5 to 6.6)4.1 to 4.8 (5.5 to 6.6)0.9 to 1.0 (1.2 to 1.4)

Power supply terminalGround screwControl wire terminal

Tightening torque(ft•lbs (N•m))

MAP0964FT9ULMAP1204FT9UL

23.2” (590) 13.8” (350) 27.6” (340) 751” (340)


25.6” (650) 15.4” (390) 25.6” (650) 826” (374)

Weight centre and weight

Weight centre of an outdoor unit

Screw size and tightening torque

– 14 –

Adding refrigerant

After finishing vacuuming, exchange the vacuum pump with a refrigerant canister and start additional chargingof refrigerant.

Calculation of additional refrigerant charge amount

Selection of installation place• The cooling performance may decline considerably when total operating capacity of cooling indoor units is

less than 38 kBtu/h while ambient temperature is below 32°F (0°C).

L2 L3

a2 b2 c2 d2

L1d1

a1 b2 c1 FS unit

Additional refrigerant chargeamount

Liquid pipe outer dia.Additional refrigerant amount/1ft (lbs)

Ø1/4”0.017

Outdoor unit capacity type

072 type096 type120 type144 type168 type192 type216 type240 type

L1

Additional charge amount (lbs) =

=

=

=

{ (Lx × 0.017 lbs/ft)+(Ly × 0.037 lbs/ft)+(Lz × 0.071 lbs/ft) } × 1.3+ 27.5 (lbs)

{ ((a2+d2) × 0.017 lbs)+((L3+a1+b1+c1+d1+b2+c2) × 0.037 lbs)+(L1+L2) × 0.071 lbs } × 1.3+27.5 (lbs)

{ (30 × 0.017 lbs)+(150 × 0.037 lbs)+(135 × 0.071 lbs) } × 1.3+27.5 (lbs)

47.84 lbs

Lx : Actual total length of liquid pipe Ø1/4” (ft)

Ly : Actual total length of liquid pipe Ø3/8” (ft)

Lz : Actual total length of liquid pipe Ø1/2” (ft)

Ø1/2": 90ft L2 Ø1/2": 45ft L3 Ø3/8":30ft

5.520.927.55.5

23.130.834.137.4


———

072 type072 type096 type096 type120 type

Adjustment amount of refrigerant(lbs) Combined outdoor units

Ø3/8”0.037

Ø1/2”0.071

Ø5/8”0.108

Ø3/4”0.168

Actual length of liquidpipe(lbs) = × × 1.3 +

Additional refrigerant chargeamount per liquid pipe 1ft

[Table 3]

Adjustment amount ofrefrigerant[Table 4]

Table 3

Table 4

Example:(120 type)

a1 Ø1/4": 30ft b1 Ø3/8": 30ft c1 Ø1/4": 15ft d1 Ø1/4": 15ft

a2 Ø1/4": 15ft b2 Ø3/8": 15ft c2 Ø1/4": 15ft d2 Ø1/4": 15ft

– 15 –

New Refrigerant (R410A)This air conditioner adopts a new HFC type refrigerant (R410A) which does not deplete the ozone layer.

1. Safety Caution Concerned to New RefrigerantThe pressure of R410A is high 1.6 times of that of the former refrigerant (R22). Accompanied with change ofrefrigerant, the refrigerating oil has been also changed. Therefore, be sure that water, dust, the formerrefrigerant or the former refrigerating oil is not mixed into the refrigerating cycle of the air conditioner with newrefrigerant during installation work or service work. If an incorrect work or incorrect service is performed, thereis a possibility to cause a serious accident. Use the tools and materials exclusive to R410A to purpose a safework.

2. Cautions on Installation/Service(1) Do not mix the other refrigerant or refrigerating oil.

For the tools exclusive to R410A, shapes of all the joints including the service port differ from those of theformer refrigerant in order to prevent mixture of them.

(2) As the use pressure of the new refrigerant is high, use material thickness of the pipe and tools which arespecified for R410A.

(3) In the installation time, use clean pipe materials and work with great attention so that water and others do notmix in because pipes are affected by impurities such as water, oxide scales, oil, etc. Use the clean pipes.Be sure to brazing with flowing nitrogen gas. (Never use gas other than nitrogen gas.)

(4) For the earth protection, use a vacuum pump for air purge.(5) R410A refrigerant is azeotropic mixture type refrigerant. Therefore use liquid type to charge the refrigerant.

(If using gas for charging, composition of the refrigerant changes and then characteristics of the airconditioner change.)

3. Pipe MaterialsFor the refrigerant pipes, copper pipe and joints are mainly used. It is necessary to select the most appropriatepipes to conform to the standard. Use clean material in which impurities adhere inside of pipe or joint to aminimum.(1) Copper pipe

<Piping>The pipe thickness, flare finishing size, flare nut and others differ according to a refrigerant type.When using a long copper pipe for R410A, it is recommended to select “Copper or copper-base pipewithout seam” and one with bonded oil amount 40mg/10m or less. Also do not use crushed, deformed,discolored (especially inside) pipes. (Impurities cause clogging of expansion valves and capillary tubes.)

<Flare nut>Use the flare nuts which are attached to the air conditioner unit.

(2) JointThe flare joint and socket joint are used for joints of the copper pipe. The joints are rarely used forinstallation of the air conditioner. However clear impurities when using them.

– 16 –

4. Tools(1) Required Tools for R410A

Mixing of different types of oil may cause a trouble such as generation of sludge, clogging of capillary, etc.Accordingly, the tools to be used are classified into the following three types.1) Tools exclusive for R410A (Those which cannot be used for conventional refrigerant (R22))2) Tools exclusive for R410A, but can be also used for conventional refrigerant (R22)3) Tools commonly used for R410A and for conventional refrigerant (R22)The table below shows the tools exclusive for R410A and their interchangeability.

Tools exclusive for R410A (The following tools for R410A are required.)

Explanation of symbols

General tools (Conventional tools can be used.)

In addition to the above exclusive tools, the following equipments which serve also for R22 are necessary asthe general tools.

Also prepare the following equipments for other installation method and run check.

(1) Vacuum pump Use vacuum pump by attaching vacuum pump adapter.(2) Torque wrench(3) Pipe cutter(4) Reamer(5) Pipe bender(6) Level vial

(7) Screwdriver (+, –)(8) Spanner or Monkey wrench(9) Hole core drill(10)Hexagon wrench (Opposite side 4mm)(11)Tape measure(12)Metal saw

(1) Clamp meter(2) Thermometer

(3) Insulation resistance tester(4) Electroscope

(Note 1) When flaring is carried out for R410A using the conventional flare tools, adjustment of projection margin is necessary. For this adjustment, a copper pipe gauge, etc. are necessary.(Note 2) Charging cylinder for R410A is being currently developed.

Used tools Usage Proper use of tools/parts

Gauge manifold Vacuuming, charging refrigerantand operation check

Exclusive to R410A

Charging hose Exclusive to R410A

Charging cylinder Charging refrigerant Unusable (Use the Refrigerant charging balance.)

Gas leak detector Checking gas leak Exclusive to R410A

Vacuum pump Vacuum drying Usable if a counter-flow preventive adapter is attached

Vacuum pump with counterflow Vacuum drying R22 (Existing article)

Flare tool Flare processing of pipes Usable by adjusting size

Bender Bending processing of pipes R22 (Existing article)

Refrigerant recovery device Recovering refrigerant Exclusive to R410A

Torque wrench Tightening flare nut Exclusive to Ø1/2” (12.7 mm) to Ø5/8” (15.9 mm)

Pipe cutter Cutting pipes R22 (Existing article)

Welding machine/Nitrogen gascylinder Welding of pipes R22 (Existing article)

: Newly prepared (It is necessary to use it exclusively with R410A, separately from those for R22 or R407C.): Former tool is available.

Refrigerant canister Charging refrigerant Exclusive to R410AEnter the refrigerant name for identification.

– 17 –

1.SPECIFICATIONS1-1. 208/230V modelSingle unit (System with Non-ducted indoor units)

(*1) Rated conditionsCooling : Indoor air temperature 80 °F DryBulb/67 °F WetBulb, Outdoor air temperature 95 °F DryBulbHeating : Indoor air temperature 70 °F DryBulb, Outdoor air temperature 47 °F DryBulb/43 °F WetBulb072,096 type :Equivalent piping length : 50ft , Hight difference : 0ft , 120 type :Equivalent piping length :75ft , Hight difference : 0ftConditions based on Alternate Test Method guidelines provided by the U.S. Department of Energy(DOE)

(*2) Setting is necessary(*3) The amount does not consider extra piping length. Refrigerant must be added on site in accordance with

the actual piping length.(*4) High-pressure switch / High-pressure sensor / Low-pressure sensor / Fusible plug / PC board fuse /

Inverter overload protector(*5) Select wire size based on the larger value of MCA.

MCA : Minimum Circuit Amps (minimum circuit Amps required for power supply design.)(*6) MOCP : Maximum Overcurrent Protection(Amps)

Outdoor unit model name MMY- MAP0724FT9UL MAP0964FT9UL MAP1204FT9UL(208 / 230) / 3 / 60V/Ph/HzCenter VoltagePower Supply

9672 120Nominal capacity (*1)10881

kBtu/hkBtu/h 135Nominal capacity

CoolingHeating (*1)

Soft StartAStarting Current76.376.3 76.3InHeight

Dimension

788616 788lbsPackedTotal Weight

Silky shade (Munsell 1Y8.5/0.5)ColorHermetic twin rotary compressorTypeCompressor

2.1 × 3 2.7 × 32.3 × 2kWMotor outputPropeller fanFan

1.0 1.01.0kWMotor outputFan unit7,060 7,6205,120cfmAir volume

OFF:420 ON:540High-pressure switch psi

0.16 0.160.20In WG(*2)Maximum external static pressureFinned tubeHeat exchanger

R410ARefrigerant Name25.4 25.425.4lbs(*3)Charged refrigerant amount

751583 751lbsUnit

50.541.8 50.5InWidth32.632.6 32.6InDepth72.972.9 72.9InHeight47.639.0 47.6InWidth

Packing

Unit30.730.7 30.7InDepth

(*4)Protective devices5034 52Electrical

specifications Unit MCA (*5) A6040 60MOCP (*6) A

Refrigerant piping

1/2"1/2" 1/2"Diameter In7/8"7/8" 1-1/8"Diameter In3/4"3/4" 3/4"Diameter

LiquidSuction gasDischarge gas In

FlareTypeBalance3/8"3/8" 3/8"Diameter In1612Maximum number of indoor unitsIndoor units 20

14 to 109CoolingOperation temperature range– 4 to 60Heating

FDBFWB

62.0CoolingSound pressure level63.0

56.058.0

63.565.5Heating

dB(A)dB(A)

A value of the specifications list is numerical valueas of Jun., 2013 and may change it without a notice.

– 18 –

Single unit(System with ducted indoor units)

(*1) Rated conditionsCooling : Indoor air temperature 80 °F DryBulb/67 °F WetBulb, Outdoor air temperature 95 °F DryBulbHeating : Indoor air temperature 70 °F DryBulb, Outdoor air temperature 47 °F DryBulb/43 °F WetBulbEquivalent piping length : 25ft , Hight difference : 0ftConditions based on Alternate Test Method guidelines provided by the U.S. Department of Energy(DOE)





Outdoor unit model name MMY- MAP0724FT9UL MAP0964FT9UL MAP1204FT9UL(208 / 230) / 3 / 60V/Ph/HzCenter VoltagePower Supply



CoolingHeating (*1)


Dimension








751583 751lbsUnit


Packing




Refrigerant piping

1/2"1/2" 1/2"Diameter In7/8"7/8" 1-1/8"Diameter In3/4"3/4" 3/4"Diameter In3/8"3/8" 3/8"Diameter

LiquidSuction gasDischarge gasBalance In

1511Maximum number of indoor unitsIndoor units 1914 to 109CoolingOperation temperature range– 4 to 60Heating

FDBFWB


56.058.0

63.565.5Heating

dB(A)dB(A)


– 19 –

Combination unit(System with Non-ducted indoor units)






(208 / 230) / 3 / 60V/Ph/HzCenter VoltagePower Supply168144kBtu/h 192Nominal capacityCooling (*1)189162kBtu/h 216Nominal capacityHeating (*1)

Soft StartAStarting Current788 + 616616 + 616 788 + 788lbsPackedTotal Weight


2.1 × 3 + 2.3 × 2 2.1 × 3 + 2.1 × 32.3 × 2 + 2.3 × 2kWMotor outputPropeller fanFan

1.0 + 1.0 1.0 + 1.01.0 + 1.0kWMotor outputFan unit7,060 + 5,120 7,620 + 7,0605,120 + 5,120cfmAir volume



R410ARefrigerant Name25.4 + 25.4 25.4 + 25.425.4 + 25.4lbs(*3)Charged refrigerant amount

751 + 583583 + 583 751 + 751lbsUnit

(*4)Protective devices50 + 3434 + 34 50 + 50Electrical

specifications Unit MCA (*5) A60 + 4040 + 40 60 + 60MOCP (*6) A

Refrigerant piping

3/4"5/8" 3/4"Diameter In1-1/8"1-1/8" 1-1/8"Diameter In7/8"7/8" 7/8"Diameter In3/8"3/8" 3/8"Diameter



FDBFWB


59.061.0

65.566.0Heating

dB(A)dB(A)

216243

788 + 788

2.7 × 3 + 2.1 × 3

1.0 + 1.07,620 + 7,060

0.16

25.4 + 25.4

751 + 751

52 + 5060 + 60

3/4"1-3/8"1-1/8"3/8"36

66.067.5

240270

Outdoor unit set model name MMY- AP1444FT9UL AP1684FT9UL AP1924FT9UL AP2164FT9UL AP2404FT9UL

Outdoor unit model name MMY- MAP0724FT9ULMAP0724FT9UL





788 + 788

2.7 × 3 + 2.7 × 3

1.0 + 1.07,620 + 7,620

0.16

25.4 + 25.4

751 + 751

52 + 5260 + 60

3/4"1-3/8"1-1/8"3/8"40

66.568.5


– 20 –

Combination unit(System with ducted indoor units)






(208 / 230) / 3 / 60V/Ph/HzCenter VoltagePower Supply168144 192Nominal capacity (*1)189162


CoolingHeating (*1)








751 + 583583 + 583 751 + 751lbsUnit



Refrigerant piping


LiquidrSuction gasDischarge gasBalance In


FDBFWB


59.061.0

65.566.0Heating

dB(A)dB(A)

216243

788 + 788

2.7 × 3 + 2.1 × 3

1.0 + 1.07,620 + 7,060

0.16

25.4 + 25.4

751 + 751

52 + 5060 + 60

3/4"1-3/8"1-1/8"3/8"34

66.067.5

240270







788 + 788

2.7 × 3 + 2.7 × 3

1.0 + 1.07,620 + 7,620

0.16

25.4 + 25.4

751 + 751

52 + 5260 + 60

3/4"1-3/8"1-1/8"3/8"38

66.568.5


– 21 –

1-2. 460V modelSingle unit(System with Non-ducted indoor units)

(*1) Rated conditionsCooling : Indoor air temperature 80 °F DryBulb/67 °F WetBulb, Outdoor air temperature 95 °F DryBulbHeating : Indoor air temperature 70 °F DryBulb, Outdoor air temperature 47 °F DryBulb/43 °F WetBulb072,096 type :Equivalent piping length : 50ft , Hight difference : 0ft , 120 type :Equivalent piping length :75ft , Hight difference : 0ftConditions based on Alternate Test Method guidelines provided by the U.S. Department of Energy(DOE)





Outdoor unit model name MMY- MAP0724FT6UL MAP0964FT6UL MAP1204FT6UL460 / 3 / 60V/Ph/HzCenter VoltagePower Supply



CoolingHeating (*1)


Dimension








826658 826lbsUnit


Packing




Refrigerant piping




FDBFWB


56.058.0

63.565.5Heating

dB(A)dB(A)


– 22 –

Single unit(System with ducted indoor units)






Outdoor unit model name MMY- MAP0724FT6UL MAP0964FT6UL MAP1204FT6UL460 / 3 / 60V/Ph/HzCenter VoltagePower Supply



CoolingHeating (*1)


Dimension








826658 826lbsUnit


Packing




Refrigerant piping




FDBFWB


56.058.0

63.565.5Heating

dB(A)dB(A)


– 23 –

Combination unit(System with Non-ducted indoor units)






460 / 3 / 60V/Ph/HzCenter VoltagePower Supply168144 192Nominal capacity (*1)189162


CoolingHeating (*1)








826 + 658658 + 658 826 + 826lbsUnit



Refrigerant piping




FDBFWB


59.061.0

65.566.0Heating

dB(A)dB(A)

216243

863 + 863

2.7 × 3 + 2.1 × 3

1.0 + 1.07,620 + 7,060

0.16

25.4 + 25.4

826 + 826

30 + 2835 + 35

3/4"1-3/8"1-1/8"3/8"36

66.067.5

240270







863 + 863

2.7 × 3 + 2.7 × 3

1.0 + 1.07,620 + 7,620

0.16

25.4 + 25.4

826 + 826

30 + 3035 + 35

3/4"1-3/8"1-1/8"3/8"40

66.568.5


– 24 –

Combination unit(System with ducted indoor units)






460 / 3 / 60V/Ph/HzCenter VoltagePower Supply168144 192Nominal capacity (*1)189162


CoolingHeating (*1)








826 + 658658 + 658 826 + 826lbsUnit



Refrigerant piping




FDBFWB


59.061.0

65.566.0Heating

dB(A)dB(A)

216243

863 + 863

2.7 × 3 + 2.1 × 3

1.0 + 1.07,620 + 7,060

0.16

25.4 + 25.4

826 + 826

30 + 2835 + 35

3/4"1-3/8"1-1/8"3/8"34

66.067.5

240270







863 + 863

2.7 × 3 + 2.7 × 3

1.0 + 1.07,620 + 7,620

0.16

25.4 + 25.4

826 + 826

30 + 3035 + 35

3/4"1-3/8"1-1/8"3/8"38

66.568.5


– 25 –

2. WIRING DIAGRAM2-1. Outdoor UnitModel: MMY-MAP0724FT9UL

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

· · · �· · · �· · · �· · · �· · · �· · · �· · · �· · · �· · · �

· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

�

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

�·

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·�

L-C

M2

CN20

(WH

I)

Con

nect

or fo

r op

tiona

l P.C

.BO

AR

D

CN

510

3

SW

07

MC

C-1

596

MC

C-1

625A

MC

C-1

625B

MC

C-1

625C

BLK

RED

WHI

WH

I

BLK

RE

D

RBC

N13

CN

11

CN

12

CN31

CN32

CN33 CN43

CN51

CN52

BLK

BRW

CN42

CN41

RED

RED

RED

WHI W

HI

PUR

F01

F02

F03

BLK

RED

TB

1W

HI

L1L2

L3

PO

WE

R S

UP

PLY

�3N

~ 6

0Hz

460V

CN

22�

(RE

D)

CN23

CN24

RE

D

BLK

WH

I

RE

D

GR

Y

CN

50(B

LK)

4

F02

(BLK

)

(WHI

)C

N40

0

CN

530

F01

CM

1

CN203

CN202

CN201

CN20

CN19 L-C

M1

VU

MS

3~

W

+-

++

--

CN19

(WHI

)C

N85

2

5

5

F02

1 SV

41

MC

C-1

596

CN12

F01

CN11

CN13

CN312(BLU)

SV

51S

V42

(RE

D)

CN

851

35

7

CN314(WHI)

12

CN311(WHI)

MC

C-1

606

U

U

TB

2

CN

-R

U1

U2

U3

(RED

)A

.HE

AT

ER

CN

334

HE

AT

ER

1

HE

AT

ER

2

CN

335

CN

331

1 31 3

(GR

(WHI

)

CN

332

11 3

(BLU

)

4WV

1

U4

U5

U6

(BLU

)C

N01

CN

317

1 321

(BLU

)

(WH

I)C

N03

21

To �

Indo

or U

nit

To �

Out

door

uni

t

To �

Cen

tral C

ontro

ller

(WH

I)C

N30

02 C

N30

11

4

(WH

I)

36

5

13

2

ON

SW

30

1O

FF2

CN

508

ON

OFF

46

5

(RE

D)

4

SW

06

21

3

ON

OFF

21

(BLK

)C

N50

9

PM

V1

MP

MV

2

M

SW

01,S

W02

,SW

03

SW06

, SW

07, S

W09

, SW

10,�

SW11

, SW

12, S

W13

, SW

14,�

SW16

, SW

17, S

W30

CN

**

F01

,F02

SW

04,S

W05

,SW

15

SV

3D,S

V3E

,SV

41,S

V42

SV

2,S

V3A

,SV

3B,S

V3C

PM

V1,

PM

V2

PM

V4

� RB

4WV

1

CN

-R

FM

TD

1,T

D2

TE

1, T

E2

PD

Mg-

CT

TM

agne

t con

tact

or

PS

HE

ATE

R1,

HE

ATE

R2

L-C

M1,

L-C

M2

L-F

M

A.H

EA

TE

R

(MC

C-1

596)

(MC

C-1

606)

F01

,F02

(MC

C-1

610)

F50

0(M

CC

-162

5A)

F01

, F02

, F03

MC

C-1

625B

MC

C-1

596

MC

C-1

625

AM

CC

-161

0M

CC

-160

6

P.C

.Boa

rd

63H

1,63

H2

CM

1,C

M2

TB

1T

B2

TS

1, T

S2

TO

TL1

TK

1,T

K2,

TK

4,T

K5

SV

51,S

V61

, SV

11A

,SV

14

1

CN

600

CN

504

-

FM

CN201

CN202

CN203

CM

2

V 3~MS

UW

+-

++

--

5

CN

101�

(WH

I)

CN

101�

(WH

I)C

N10

2�(B

LU)

CN

102�

(BLU

)

(WHI

)C

N85

2

WHI

REDU

MS

3~

BLK

WHI

RED

BLK

WHI

RED

BLK

WHI

RED

BLK

WHI

RED

BLK

WV+

CN705+

CN704

CN703-

CN322

SV

3AS

V3B

SV

3CS

V2

F02

CN12

CN11

F01

CN13

(RE

D)

CN

851

4

(WHI) CN321

13

15

23

6

SV

3ES

V3D

F50

0

MC

C-1

610

(RE

D)

CN

505

CN

500

(WH

I)

+

21

(WHI)

34

VU

TK

2

TK

4

TK

5

Com

pres

sor

term

inal

Col

or in

dica

tion

RE

D:R

ED

WH

I:WH

ITE

YE

L:Y

ELL

OW

BLU

:BLU

EB

LK:B

LAC

KG

RY

:GR

AY

PN

K:P

INK

OR

N:O

RA

NG

EB

RN

:BR

OW

NG

RN

:GR

EE

N

5

L-F

M

CN

510

-

(BLU

)

CN

511

W

1

(BLU

)(RE

D)

CN

535

2

(GR

N)

CN

532

(YE

L)C

N53

4313

(WH

I)C

N50

0

*1

CN

513

CN

31

CN

30

D60

0

(BLU

)

SW

RT

(Ser

vice

)

CN

800

OFF

1SW

09O

N

4O

FFO

N

42

3

(GR

N)

CN

511

SW

10 31

24

(BLU

)C

N51

2

D60

3S

W03

SW

02S

W01D60

1D

602

D60

4

SW

05

CN

32

SW

04

(GR

N)

CN

514

SW

15

(RE

D)

CN

501

14

33

PD

TD

1

TD

2

TO

TE

1

TL1

TK

1(B

LK)

(WH

I)

CN

531

CN

523

2 1 31

(YE

L)

CN

520

CN

507

2

(GR

N)

2111

(PN

K)

(WH

I)C

N50

2

CN

503

313

23

4

3

t˚�

t˚� t˚�

t˚�

t˚�

t˚� t˚�

t˚� t˚�

t˚�

PS

Rea

ctor

for

fan

Ter

min

al b

lock

(con

trol

wiri

ng)

TR

Tra

nsfo

rmer

Pul

se m

otor

val

ve(m

ain)

Pul

se m

otor

val

ve(s

ub)

�Rus

h cu

rren

t pro

tect

res

isto

r

Pip

e te

mp.

sens

or(d

isch

arge

)H

eat e

xcha

nge

tem

p.se

nsor

Ter

min

al b

lock

(pow

er s

uppl

y)

Pus

h bu

tton

switc

hR

otar

y sw

itch

Dip

sw

itch

Oil

tem

p.se

nsor

Liqu

id te

mp.

sens

orA

ir te

mp.

sens

or

2-w

ay v

alve

coi

l

Pre

ssur

e se

nsor

(Hig

h)P

ress

ure

sens

or(L

ow)

Pip

e te

mp.

sens

oer(

suct

ion)

Acc

umul

ator

cas

e he

ater

Inve

rter

P.C

.Boa

rd(C

ompr

esso

r)

Inve

rter

P.C

.Boa

rd(F

an)

Inte

rfac

e C

ontr

ol P

.C.B

oard

Noi

se fi

lter

P.C

.Boa

rd A

Noi

se fi

lter

P.C

.Boa

rd B

MC

C-1

625C

Con

nect

ion

P.C

.Boa

rd B

Con

nect

or

31.5

A 5

00V

~

Hig

h pr

essu

re s

witc

h

Fan

mot

or

Com

pres

sor

case

hea

ter

Fus

e(C

ompr

esso

r)

Fus

e(In

terf

ace)

Fus

e(N

oise

filte

r)

T6.

3A

250

V~

Fus

e(F

an)

T15

A 2

50V

~

Fus

e(T

rans

form

er)�

T8A

600

V~

T6.

3A 2

50V

~

Com

pres

sor

Rel

ay c

onne

ctor

4-w

ay v

alve

coi

l

Rea

ctor

for

com

pres

sor

Sym

bol

Par

ts n

ame

Sym

bol

Par

ts n

ame

Fie

ld w

iring

Pro

tect

ive

eart

h

Term

inal

blo

ck

P.C

.boa

rd

Con

nect

or

Term

inal

U6

TB

1

L3

L1L2

U4

U2

U3

TB

2

U1

U5

MC

C-1

606

MC

C-1

596

(CM

2)M

CC

-159

6

Mg-

CT

T

(CM

1)

MC

C-1

610

MC

C-1

625C

Par

ts la

yout

*Noi

se fi

lter

P.C

.Bos

rds

are

inst

alle

d�on

a b

ack

of te

rmin

al b

lock

.

TS

21

(BLK

)C

N50

62

63H

1P

>P

>P

>

(RED

)C

N30

5(R

ED)

CN

307

63H

2P

>P

>P

>

(RED

)C

N30

6

Mg-

CT

T�

coil

CN

304

1 3

(RED

)A

1

A2

CN

502�

(WH

I)

2T1

4T2

6T3

1L1

3L2

5L3

Mg-CTT

BLK

U

U

CN

73�

(WH

I)C

N74

�(W

HI)

CN

72�

(WH

I)

1 414

1 4

F70

CN

71

220V

460V

CN

70

F71

TR

CN

56C

N54

(MC

C-1

625C

)�F

70, F

71

MC

C-�

1625

A

MC

C-�

1625

B

Flo

ntB

ack

· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �

· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �· · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · · �

· · · · · · · · · · · · · · �· · · · · · · · · · · · · · �· · · · · · · · · · · · · · �· · · · · · · · · · · · · · �· · · · · · · · · · · · · · �· · · · · · · · · · · · · · �· · · · · · · · · · · · · · �· · · · · · · · · · · · · · �· · · · · · · · · · · · · · �· · · · · · · · · · · · · · �· · · · · · · · · · · · · · �· · · · · · · · · · · · · · �· · · · · · · · · · · · · · �

· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �· · · · · · · · · · · · �

· · · · · · · · · · �· · · · · · · · · · �· · · · · · · · · · �· · · · · · · · · · �· · · · · · · · · · �· · · · · · · · · · �· · · · · · · · · · �· · · · · · · · · · �· · · · · · · · · · �

· · · · · · · · �· · · · · · · · �· · · · · · · · �· · · · · · · · �· · · · · · · · �· · · · · · · · �· · · · · · · · �

· · · · · · · · �· · · · · · · · �· · · · · · · · �· · · · · · · · �· · · · · · · · �· · · · · · · · �· · · · · · · · �

2 CN

303

14

(RE

D)

36

5

PM

V4

M

t˚�

TS

11

(WH

I)C

N50

52

TE

2C

N52

1(R

ED

)21

t˚�

1 SV

61

CN315(WHI)

35

7

CN319 SV

11A2

1

(WHI)

CN336(YEL) SV

14

MMY-MAP0724FT9UL

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

•

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

•

••

••

••

••

••

••

••

••

••

••

••

•

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

••

L-C

M2

CN05

(WH

I)

Con

nect

or fo

r op

tiona

l P.C

.boa

rd

CN

510

3

SW

07 3S

W17

SW

12

MC

C-1

595

U

MC

C-1

608A

MC

C-1

608B

12

WH

I

3

RE

D

BLK

BLK

WH

IR

ED

BLK

WH

I

CN

13

CN

12

RE

DC

N11

CN31

CN32

CN33 CN43

CN42

CN41

F01

F02

F03

BLK

RED

TB

1W

HI

BLK

RED

WHI

BLK

RED

WHI

L1L2

L3

PO

WE

R S

UP

PLY

3~ 6

0Hz

208/

230V

CN23

CN24

RE

DG

RY

CN

50(B

LK)

4

F02

(BLK

)

(WH

I)C

N40

0

CN

530

F01

CM

1

CN203

CN202

CN201

CN05

CN04 L-C

M1

VU

MS

3~

W

+-

++

--

CN04

63H

1P

>P

>P

>

(BLK

)C

N25

1

(WHI

)CN

852

55

F03

1 SV

41

MC

C-1

595

CN02

F02

CN01

CN03

CN312(BLU)

SV

51S

V42 (R

ED

)C

N85

1

35

7

CN314(WHI)

12

CN311(WHI)

MC

C-1

606

UUU

TB

2

CN

-R

U1

U2

U3

(RE

D)

A.H

EA

TE

RC

N33

4

HE

AT

ER

1

HE

AT

ER

2

CN

335

CN

331 1 31 33

(GR

Y)

(WH

I)

CN

332 11 3

(BLU

)

4WV

1

U4

U5

U6

(BLU

)C

N01

CN

317

1 321

(BLU

)

(WH

I)C

N03

21

CO

NTR

OLL

ER

TO C

EN

TRA

LTO

IND

OO

RU

NIT

TO O

UTD

OO

RU

NIT

CN

300

(WH

I)C

N30

3(R

ED

)

2 CN

301

14

(WH

I)

36

5

13

2

OFF OFF ON

ON S

W30

1O

FF2

41

23

2 SW

16

13

4

OFF

21

OFF ON

21

CN

508 O

N OFF

ON

46

5

(RE

D)

4

SW

06

2 SW

1

13

ON OFF

ON

21

(BLK

)C

N50

9

PM

V1

MP

MV

2

M

1

CN

600

CN

504

- FM

CN201

CN202

CN203

CM

2

V 3~MS

UW

63H

2P

>P

>P

>

+-

++

--

5

(BLK

)C

N25

1

(WH

I)C

N85

2

U

MS

3~

WV+

CN705+

CN704

CN703-

CN322

SV

3AS

V3B

SV

3CS

V2

F03

CN02

CN01

F02

CN03

(RE

D)

CN

851

4

(WHI) CN321

13

15

23

6

SV

3ES

V3D

F50

0

MC

C-1

610

(RE

D)

CN

505

CN

500

(WH

I)

+

21

(WHI)

34

VU

TK

2

TK

4

TK

5

Com

pres

sor t

erm

inal

Col

or in

dica

tion

RE

D:R

ED

WH

I:WH

ITE

YE

L:Y

ELL

OW

BLU

:BLU

EB

LK:B

LAC

KG

RY

:GR

AY

PN

K:P

INK

OR

N:O

RA

NG

EB

RN

:BR

OW

NG

RN

:GR

EE

N

L-F

M

CN

510

-

(BLU

)

CN

511

W

1 (BLU

)

(RE

D)

CN

535

2

(BR

N)

CN

532

(YE

L)C

N53

4313

(WH

I)C

N50

0

*1

CN

513 CN

31

CN

30

D60

0

(BLU

)

ON

ON OFF

SW

RT

(Ser

vice

)

CN

800

1

344

OFF

43

23

12

4

OFF

1SW

09

SW

13

ON

4O

FFO

N

42

3

(GR

N)

CN

511

SW

10 3S

W14

12

4

(BLU

)C

N51

2

D60

3S

W03

SW

02S

W01D60

1D

602

D60

4

SW

05

CN

32

SW

04

(GR

N)

CN

514

SW

15

(RE

D)

CN

501

14

33

PD

TD

1

TD

2

TS

1

TO

TE

1

TL1

TK

1(B

LK)

(WH

I)

CN

531

CN

523

2 1 31

(YE

L)

(WH

I)

CN

520

CN

507

CN

505

2

(GR

N)

2111

(PN

K)

(WH

I)C

N50

2

CN

503

313

23

4

3

PS

Par

ts la

yout

MC

C-1

610

SW

01,S

W02

,SW

03

SW06

,SW

07,S

W09

,SW

10

CN

**

SW16

,SW

17,S

W30

F02

,F03

SW

04,S

W05

,SW

15

SV

3D,S

V3E

,SV

41,S

V42

SV

2,S

V3A

,SV

3B,S

V3C

PM

V1,

PM

V2

PM

V4

4WV

1

CN

-R

SW11

,SW

12,S

W13

,SW

14

FM

TD

1,T

D2

TE

1, T

E2

PD

PS

HE

ATE

R1,

HE

ATE

R2

L-C

M1,

L-C

M2

L-F

M

A.H

EA

TE

R

(MC

C-1

595)

(MC

C-1

606)

F01

,F02

(MC

C-1

608A

)F

01,F

02,F

03(M

CC

-161

0)F

500

MC

C-1

608B

MC

C-1

595

MC

C-1

608A

MC

C-1

610

MC

C-1

606

P.C

.Boa

rd

63H

1,63

H2

CM

1,C

M2

TB

1T

B2

TB

3

TS

1, T

S2

TO

TL1

TK

1,T

K2,

TK

4,T

K5

SV51

,SV6

1, S

V11A

, SV1

4

Rea

ctor

for

fan

MC

C-

1608

B

MC

C-

1608

A

Term

inal

blo

ck(r

elay

wiri

ng)

Term

inal

blo

ck(c

ontr

ol w

iring

)

Pul

se m

otor

val

ve(m

ain)

Pul

se m

otor

val

ve(s

ub)

Pip

e te

mp.

sens

or(d

isch

arge

)H

eat e

xcha

nge

tem

p.se

nsor

T erm

inal

blo

ck(p

ower

sup

ply)

MC

C-1

595

(

CM

1)M

CC

-159

5

(C

M2)

MC

C-1

606

TB

3

U5

1

U1

TB

2

23

U3

U2

U4

L2L1

L3

TB

1

U6

Pus

h bu

tton

switc

hR

otar

y sw

itch

Dip

sw

itch

Oil

tem

p.se

nsor

Liqu

id te

mp.

sens

orA

ir te

mp.

sens

or

2-w

ay v

alve

coi

l

Pre

ssur

e se

nsor

(Hig

h)P

ress

ure

sens

or(L

ow)

Pip

e te

mp.

sens

oer(

suct

ion)

Noi

se fi

lter

P.C

.Boa

rd B

Acc

umul

ator

cas

e he

ater

Inte

rfac

e C

ontr

ol P

.C.B

oard

Inve

rter

P.C

.Boa

rd(F

an)

Inve

rter

P.C

.Boa

rd(C

ompr

esso

r)

Noi

se fi

lter

P.C

.Boa

rd A

Con

nect

or

30A

250

V~

Hig

h pr

essu

re s

witc

h

Fan

mot

or

Com

pres

sor

case

hea

ter

Fus

e(C

ompr

esso

r)

Fus

e(In

terf

ace)

T6.

3A 2

50V

~F

use(

Noi

se fi

lter)

T6.

3A 2

50V

~F

use(

Fan)

15A

250

V~

Com

pres

sor

Rel

ay c

onne

ctor

4-w

ay v

alve

coi

l

Rea

ctor

for

com

pres

sor

Sym

bol

Par

ts n

ame

Sym

bol

Par

ts n

ame

Term

inal

Con

nect

or

P .C

.boa

rd

Term

inal

blo

ck

Pro

tect

ive

eart

h

Fie

ld w

iring

CN

22(R

ED

)

BLK

RED

WHI

BLK

RED

WHI

BLK

RED

WHI

BLK

RED

WHI

BLK

RED

WHI

*Noi

se fi

lter

P.C

. boa

rds

are

inst

alle

d on

a b

ack

of

term

inal

blo

ck.

FR

ON

TB

AC

K

TS

21

(BLK

)C

N50

62

TE

2C

N52

1(R

ED

)21

21

43

6

5

PM

V4

M 1 SV

61

TB

03

CN315(WHI)

3

t˚ t˚ t˚ t˚ t˚ t˚ t˚ t˚ t˚ t˚ t˚ t˚

5S

V11

A

12

CN336(YEL)

CN319(WHI)

SV

14

13

⎯ 26 ⎯

⎯ 27 ⎯

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

BLK

RED

WHI F01

F02

5

-+

+

CN201

CN202

CN203

CN

102

(BLU

)C

N10

1 (W

HI)

MC

C-1

596

CN11

CN12

CN13

-+

+

5

(WH

I)C

N85

2

+ CN705

UV

W

CN19

CN20

-

CN201

CN202

CN203

++

--

MC

C-1

596

CN703

CN704

-

++

CN

510

L-F

M

TB

3

MC

C-1

596

MC

C-1

596

(CM

1)M

CC

-159

6(C

M2)

(

CM

3)

MC

C-1

606

BLK

RED

WHI

MMY-MAP0964FT6UL, MMY-MAP1204FT6UL

ON ON

OFF

ON OFF

OFF

ON 1O

FF

W

3~MS

L-C

M3

TB

3U

V

L-C

M1

L-C

M2

+

CN19

CN20

CN201

CN202

BLK

RED

WHI

CN11

CN12

++

F01

F01

F02

F02

MC

C-1

596

CM

1

-

CN203

CN19

CM

23~

U

MS

VW

CN20

CN

102

(BLU

)C

N10

1 (W

HI)

CN

102

(BLU

)C

N10

1 (W

HI)

CN13

CN

852

--

(WH

I)

CN

851

(RE

D)

5

-

CN

851

(RE

D)

CN

334

A.H

EAT

ER

(RE

D)

4

GR

Y

HE

AT

ER

1

HE

AT

ER

2

HE

AT

ER

3

CN

530

(BLK

)

(WHI) SV

61

CN315

13

F01

CN

400

(WH

I)

F02

(RED)

(BLU)

(WHI)

SV

41

1

SV

43

CN313

1

CN312

3

SV

42

53

CN314

7

1 3

CN

331

CN

3353

(GR

Y)

(WH

I)1

CN

332

(BLU

)

313

CN

3333

(BLK

)11

4WV

1

Mg-

CT

TC

oil

CN

-R

U2

U1

TB

2

TO

IND

OO

R

UN

IT

U3

U4

U5

U6

TO

CEN

TRAL

C

ON

TRO

LLER

TO

OU

TDO

OR

UN

IT

1

CN

303

(WH

I)

CN

317 1 3

(BLU

)

1

A1

A2

CN

01(B

LU)

2(R

ED

)

(RE

D)

MC

C-1

606

CN

031 2

5

12

34

6

PM

V4

M

CN

301

CN

300

(RE

D)

(WH

I)(W

HI)

MPM

V1

5

23

41

62

3

M

PM

V2

5 46

CN

508

CN

504(

BLU

)(W

HI)

TK1,

TK2,

TK3,

TK4,

TK5

Oil

tem

p.se

nsor

RE

D:R

ED

WH

I:WH

ITE

YE

L:Y

ELL

OW

BLU

:BLU

EB

LK:B

LAC

KG

RY

:GR

AY

PN

K:P

INK

OR

N:O

RA

NG

EB

RN

:BR

OW

NG

RN

:GR

EE

N

U5

CM

33~M

S

CN

852

CN13

CN12

CN11

5

(WH

I)

CN

851

(RE

D)

CN

505

(RE

D)F

500

UV

MS

3~F

M

WV

Com

pres

sor t

erm

inal

--

CN

511

WTe

rmin

al b

lock

(pow

er s

uppl

y)Te

rmin

al b

lock

(con

trol

wiri

ng)

Term

inal

blo

ck(in

tern

al w

iring

conn

ecto

r)

U1

U6

TB

2U4

U3

U2

U5

MC

C-

1625

A

MC

C-

1625

B

Par

ts la

yout

MC

C-1

610

MC

C-1

625C

TB

1T

B2

TB

3

TR

TO

TS

1, T

S2

TL1 L1

L2L3

TB

1

Air

tem

p.se

nsor

Liqu

id te

mp.

sens

or

Pip

e te

mp.

sens

oer(

Suc

tion)

Mg-

CT

T

ON

ON

ON

1

MC

C-1

610SV

3F

D60

4

1

SV

3B

2

(WHI)

(WHI)

SV

2

12

CN311

SV

3C

CN321

31

4

(WHI)

(WHI)

SV

3D

1

SV

3A

53

CN322

6

SV

3E

CN

500

23

CN323

4

2

21

CN

800

(Ser

vice

)S

WR

T

SW

174

43

12

13

2

SW

30

SW

16

21

43

ON OFF

1O

FF3

2

4

3O

FF1

2O

FF4

1D

601

SW

01

43

D60

0S

W02

D60

2D

603

SW

03

1

(BLU

)

5

CN

600

3

(YE

L)3 21 (R

ED

)C

N53

5

13

CN

534

CN

533

(RE

D)

Col

or in

dica

tion

TK

5

TK

3

TK

4

2

CN

531

1 1 33

CN

532

(GR

N)

(BLK

)

1 2C

N52

3(W

HI)

(RE

D)

2 11 2(G

RN

)

CN

521

CN

520

2 1C

N50

7(Y

EL)

CN

505

(WH

I)

TE

2

TK

1

TK

2

TL1

TE

1

TO

TS

1

SW

15

1

SW

14

2SW

10

CN

512

Con

nect

or fo

r op

tiona

l P.C

.boa

rd

(BLU

)(W

HI)

(GR

N)

(BLK

)

SW

12

SW

07 44

32

1 SW

11

SW

06

1O

FF2

3

ON

SW

13

SW

09 3O

FF1

2

ON

4O

FF1

ON

CN

510

CN

509

CN

511

(BLU

)(G

RN

)

CN

31 CN

323

4C

N30

SW

04S

W05

CN

513

CN

514

CN

501

CN

500

(RE

D)

(WH

I)

CN

503

3 31C

N50

4(B

LU)

(PN

K)

31 1

CN

502

(WH

I)

33

34

23

4

PD

PS

TD

2

TD

3

TD

1

31.5

A 5

00V

~F

01,F

02

Pul

se m

otor

val

ve(s

ub)

Rus

h cu

rren

t pro

tect

res

isto

r

Rea

ctor

for

com

pres

sor

Com

pres

sor

case

hea

ter

Hea

t exc

hang

e te

mp.

sens

orP

ipe

tem

p.se

nsor

(dis

char

ge)

Pul

se m

otor

val

ve(m

ain)

Acc

umul

ator

cas

e he

ater

Pre

ssur

e se

nsor

(Low

)P

S

TD

1,T

D2,

TD

3

SW11

,SW

12,S

W13

,SW

14

SW

04,S

W05

,SW

15

SW16

,SW

17,S

W30

SW06

,SW

07,S

W09

,SW

10

TE

1,T

E2

SV

2,S

V3A

,SV

3B,S

V3C

,S

V3D

,SV

3E,S

V3F

,SV

41,

SV

42,S

V43

,SV

51,S

V61

,S

V11

A,S

V11

B,S

V14

SW

01,S

W02

,SW

03

PM

V4

RB

PM

V1,

PM

V2

Pus

h bu

tton

switc

h

Dip

sw

itch

2-w

ay v

alve

coi

l

Rot

ary

switc

h

FM

HE

ATE

R1,

HE

ATE

R2

L-C

M1,

L-C

M2,

L-C

M3

A.H

EA

TE

R

L-F

MM

g-C

TT

PD

HE

ATE

R3

(MC

C-1

610)

F01

, F02

, F03

(MC

C-1

625A

)

(MC

C-1

625C

)

(MC

C-1

606)

F50

0

F70

, F71

F01

,F02

Fan

mot

or

Rea

ctor

for

fan

Mag

net c

onta

ctor

Pre

ssur

e se

nsor

(Hig

h)

T6.

3

T8A

600

V~

A 2

50V

~F

use(

Noi

se fi

lter)

Fus

e(Tr

ansf

orm

er)

Tran

sfor

mer

T6.

3A 2

50V

~F

use(

Inte

rfac

e)

15A

250

V~

Fus

e(Fa

n)

Noi

se fi

lter

P.C

.Boa

rd B

Con

nect

ion

P.C

.Boa

rd

Inte

rface

Con

trol

P.C

.Boa

rdIn

vert

er P

.C.B

oard

(Fan

)

Inve

rter

P.C

.Boa

rd(C

ompr

esso

r)

Noi

se fi

lter

P.C

.Boa

rd A

63H

1,63

H2,

63H

3C

M1,

CM

2,C

M3

(MC

C-1

596)

CN

-RC

N**

4WV

1S

ymbo

l

MC

C-1

625B

MC

C-1

625C

MC

C-1

610

MC

C-1

596

MC

C-1

625A

MC

C-1

606

4-w

ay v

alve

coi

l

Rel

ay c

onne

ctor

Fus

e(C

ompr

esso

r)

Hig

h pr

essu

re s

witc

h

Con

nect

or

Com

pres

sor

Par

ts n

ame

Sym

bol

P.C

.Boa

rdP

arts

nam

e

Fie

ld w

iring

Pro

tect

ive

eart

h

T erm

inal

blo

ck

P.C

.boa

rd

Con

nect

or

Term

inal

BLK

RED

WHI

BLK

RED

WHI

BLK

BLK

RED

RED

WHI

WHI

BLK

RED

WHI

*Noi

se fi

lter

P.C

. boa

rds

are

inst

alle

d on

a b

ack

of

term

inal

blo

ck. (

TB

1,T

B2)

CN

305

(R

ED

)

P>

P>

P>

63H

1 CN

306

(R

ED

)

63H

2

CN

307

(R

ED

)

63H

3

CN

304 1 3

CN

502

(WH

I)

MC

C-1

625A

MC

C-1

625B

MC

C-1

625C

BLK

RED

WHI

WH

I

BLK

RE

D

RBC

N13

CN

11

CN

12

CN31

CN32

CN33 CN43

CN51

CN52

BLK

BLK

BRW

CN42

CN41

RED

RED

RED

RED

WHI

WHI

WHI

PUR

F01

F02

F03

BLK

RED

TB

1W

HI

L1L2

L3

PO

WE

R S

UP

PLY

3N ~

60H

z 46

0V

CN

22

CN23

CN24

RE

D

BLK

WH

IR

ED

(RED

)

CN

50(B

LK)

U

2T1

4T2

6T3

1L1

3L2

5L3

Mg-CTT

U

U

CN

73(W

HI)

CN

74(W

HI)

CN

72(W

HI)

1 414

1 4

F70

CN

71

220V

460V

CN

70

F71

TR

CN

56C

N54

BA

CK

FR

ON

T

SV

51

t˚ t˚ t˚ t˚ t˚ t˚ t˚ t˚ t˚ t˚ t˚ t˚ t˚

1 2C

N50

6(B

LK)

TS

2t˚

SV

14

1

(WHI)

(YEL)

SV

11A

1

CN319

SV

11B

23

CN336

43

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·

··

··

··

··

··

··

··

··

··

··

··

··

·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·

··

··

··

··

··

··

··

··

··

··

··

··

·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

·

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

··

CN05

(WH

I)

Con

nect

or fo

r op

tiona

l P.C

.BO

AR

D

CN

510

3

SW

07 3S

W17

SW

12

MC

C-1

596

MC

C-1

608A

MC

C-1

608B

WH

I

RE

D

CN

13

CN

12

CN31

CN32

CN33 CN43

BLK

BLK

CN42

CN41

RED

WHI

F01

F02 F03

BLK

RED

TB

1W

HI

L1L2

L3

PO

WE

R S

UP

PLY

3~ 6

0Hz

208/

230V

CN23

CN24

RE

DG

RY

CN22

(RED

)

CN

50(B

LK)

4

F02(B

LK)

(WHI

)C

N40

0

CN

530 F01

CM

2

CN203

CN202

CN201

CN05

CN04

VU

MS

3~

W

+-

++

--

CN04

(WHI

)C

N85

2

5

5

1 SV

41

MC

C-1

596

CN02

CN01

CN03

CN312(BLU)

SV

51S

V42

(RE

D)

CN

851

35

7

CN314(WHI)

12

CN311(WHI)

MC

C-1

606

U

TB

2

CN

-R

U1

U2

U3

(RED

)A

.HE

AT

ER

CN

334

HE

AT

ER

1

HE

AT

ER

2

CN

335

CN

331

1 31 33

(GRY

)

(WHI

)

CN

332

11 3

(BLU

)

4WV

1

U4

U5

U6

(BLU

)C

N01

CN

317

1 321

(BLU

)

(WH

I)C

N03

21

To

Indo

or U

nit

To

Out

door

uni

t

To

Cen

tral C

ontro

ller

(WH

I)C

N30

02 C

N30

11

4

(WH

I)

36

5

13

2

OFF OFF ON

ON

SW

30

1O

FF2

41

23

2 SW

16

13

4

OFF

21

OFF ON

21

CN

508

ON

OFF

ON

46

5

(RE

D)

4

SW

06

2 SW

11

13

ON

OFF

ON

21

(BLK

)C

N50

9

PM

V1

MP

MV

2

M

SW

01,S

W02

,SW

03

SW06

, SW

07, S

W09

, SW

10,

SW11

, SW

12, S

W13

, SW

14,

SW16

, SW

17, S

W30

CN

**

F02

,F03

SW

04,S

W05

,SW

15

SV

3D,S

V3E

, SV

3F, S

V41

,S

V42

, SV

43, S

V51

, SV

61,

SV

11A

, SV

11B

, SV

14

SV

2,S

V3A

,SV

3B,S

V3C

PM

V1,

PM

V2

PM

V4

4WV

1

CN

-R

FM

TD

1,T

D2,

TD

3T

E1,

TE

2

PD

Mg-

CT

TM

agne

t con

tact

or

PS

HE

ATE

R1,

HE

ATE

R2

HE

ATE

R3

L-C

M1,

L-C

M2,

L-C

M3

L-F

M

A.H

EA

TE

R

(MC

C-1

595)

(MC

C-1

606)

F01

,F02

(MC

C-1

608A

)F

01,F

02,F

03(M

CC

-161

0)F

500

MC

C-1

608B

MC

C-1

595

MC

C-1

608

A

MC

C-1

610

MC

C-1

606

P.C

.Boa

rd

63H

1,63

H2,

63H

3C

M1,

CM

2, C

M3

TB

1T

B2

TS

1, T

S2

TO

TL1

TK

1,T

K2,

TK

3,T

K4,

TK

5

1

CN

600

CN

504

-

FM

CN201

CN202

CN203

CM

3

V 3~MS

UW

+-

+--

5

(WHI

)C

N85

2

WHI

REDU

MS

3~

BLK

WHI

RED

BLK

WHI

RED

BLK

WHI

RED

BLK

WHI

RED

BLK

WV+

CN705+

CN704

CN703-

CN322

SV

3AS

V3B

SV

3CS

V2

CN02

CN01

CN03

(RE

D)

CN

851

4

(WHI) CN321

13

15

23

6

SV

3ES

V3D

F50

0

MC

C-1

610

(RE

D)

CN

505

CN

500

(WH

I)

+

21

(WHI)

34

VU

TK

2

TK

4

TK

5

Com

pres

sor

term

inal

Col

or in

dica

tion

RE

D:R

ED

WH

I:WH

ITE

YE

L:Y

ELL

OW

BLU

:BLU

EB

LK:B

LAC

KG

RY

:GR

AY

PN

K:P

INK

OR

N:O

RA

NG

EB

RN

:BR

OW

NG

RN

:GR

EE

N

5

L-F

M

CN

510

-

(BLU

)

CN

511

W

1(B

LU)

(RE

D)

CN

535

2

(BR

N)

CN

532

(YE

L)C

N53

4313

(WH

I)C

N50

0

*1

CN

513

CN

31

CN

30

D60

0(BLU

)

ON

ON

OFF

SW

RT

(Ser

vice

)

CN

800

1

344

OFF

43

23

12

4

OFF

1SW

09

SW

13

ON

4O

FFO

N

42

3

(GR

N)

CN

511 S

W10 3

SW

14

12

4(BLU

)C

N51

2

D60

3S

W03

SW

02S

W01D60

1D

602

D60

4

SW

05

CN

32

SW

04(GR

N)

CN

514

SW

15(RE

D)

CN

501

14

33

PD

TD

1

TD

2

TO

TE

2

TL1

TK

1(B

LK)

(WH

I)

CN

531

CN

523

2 1 31

(YE

L)

CN

521

CN

507

2

(RE

D)

2111

(PN

K)

(WH

I)C

N50

2

CN

503

313

23

4

3

t˚ t˚ t˚ t˚ t˚

t˚

t˚

t˚

t˚

t˚

t˚ t˚

t˚ t˚

PS

Rea

ctor

for

fan

Ter

min

al b

lock

(con

trol

wiri

ng)

TB

3Te

rmin

al b

lock

(rela

yl w

iring

)T

B4

Ter

min

al b

lock

(rel

ayl w

iring

)T

B5

Term

inal

blo

ck(re

layl

wiri

ng)

Pul

se m

otor

val

ve(s

ub)

Pul

se m

otor

val

ve(m

ain)

Pip

e te

mp.

sens

or(d

isch

arge

)H

eat e

xcha

nge

tem

p.se

nsor

Ter

min

al b

lock

(pow

er s

uppl

y)

Pus

h bu

tton

switc

hR

otar

y sw

itch

Dip

sw

itch

Oil

tem

p.se

nsor

Liqu

id te

mp.

sens

orA

ir te

mp.

sens

or

2-w

ay v

alve

coi

l

Pre

ssur

e se

nsor

(Hig

h)P

ress

ure

sens

or(L

ow)

Pip

e te

mp.

sens

oer(

suct

ion)

Acc

umul

ator

cas

e he

ater

Inve

rter

P.C

.Boa

rd(C

ompr

esso

r)

Inve

rter

P.C

.Boa

rd(F

an)

Inte

rfac

e C

ontr

ol P

.C.B

oard

Noi

se fi

lter

P.C

.Boa

rd A

Noi

se fi

lter

P.C

.Boa

rd B

C.B

oard

(Com

pres

sor)

Con

nect

or

31.5

A 5

00V

~

Hig

h pr

essu

re s

witc

h

Fan

mot

or

Com

pres

sor

case

hea

ter

Fus

e(C

ompr

esso

r)

Fus

e(In

terf

ace)

T6.

3A

250

V~

Fus

e(N

oise

filte

r)T

6.3

A 2

50V

~F

use(

Fan

)15

A 2

50V

~

Com

pres

sor

Rel

ay c

onne

ctor

4-w

ay v

alve

coi

l

Rea

ctor

for

com

pres

sor

Sym

bol

Par

ts n

ame

Sym

bol

Par

ts n

ame

Fie

ld w

iring

Pro

tect

ive

eart

h

T erm

inal

blo

ck

P.C

.boa

rd

Con

nect

or

T erm

inal

U6

TB

1

L3

L1L2

U4

U2

U3

TB

2

U1

U5

MC

C-1

606

MC

C-1

596

(CM

3)M

CC

-159

6(C

M2)

MC

C-1

610

Par

ts la

yout

*Noi

se fi

lter

P.C

.Bos

rds

are

inst

alle

d on

a b

ack

of te

rmin

al b

lock

.

TS

11

(WH

I)C

N50

52

63H

363

H1

63H

2

BLK

BLK

MMY-MAP0964FT9UL, MMY-MAP1204FT9UL

HE

AT

ER

3

3

CN

333

1(B

LU)

CN313(RED)

SV

43

1 SV

61

CN315(WHI)

35

71

31

SV

11A

CN319(WHI)

SV

11B

23

4

CN323(WHI)

SV

3F

13

CN336(YEL)

SV

14

13

CM

1

CN203

CN202

CN201

CN05

CN04

VU

MS

3~

W

+++

-(W

HI)

CN

852

F02

F03

F03

F02

F02

F03

MC

C-1

596

CN02

CN01

CN03

(RE

D)

CN

851

CN

251

(BLK

)

WHI

WHI

WHI

WHI

WHI

WHI

RED

12

3TB

3

RED

BLK

BLK

BLK

BLK

BLK

RED

RED

RED

RED

BLK

WHI

RED

BLK

P>

TB3L-

CM

3L-

CM

2L-

CM

1

5

MC

C-1

596

(CM

1)

TB

5

TB

41

23

TD

31

(BLU

)C

N50

43

TK

31

(RE

D)

CN

533

3

2 CN

303

14

(RE

D)

36

5

PM

V4

M

TS

2(B

LK)

CN

506

21

U

U

U

CN

11

12

3TB

4

CN

251

(BLK

)

P>

CN

251

(BLK

)

P>

MC

C-1

606A

MC

C-1

606B

FLO

NT

BA

CK

TE

1C

N52

0(B

RN

)21

U2

U3

TB

3U

1

⎯ 28 ⎯

– 29 –

2-2. FS unit (Flow Selector unit)Specifications

Model Name RBM-Y0383FUL RBM-Y0613FUL RBM-Y0963FULPower supply 230 V (208/230 V) 1phase 60 Hz

Connectable indoor unit capacity (kBtu/h) Below 38 38 to below 61 61 to 96 or lessConnectable indoor units 5 8 8

Height (in) 7.49 7.49 7.88Width (in)Dimension 9.77 9.77 15.8Depth (in) 6.3 6.3 7.88

Total Weight (lbs) 11 13 20Liquid side (in)Connecting port dia.

(Indoor unit side)3/8" 3/8" 1/2"

Gas side (in) 5/8" 5/8" 7/8"Liquid side (in)

Connecting port dia.(Outdoor unit side)

3/8" 3/8" 1/2"Discharge gas side (in) 1/2" 1/2" 1/4"

Gas side (in) 5/8" 5/8" 7/8"Connection Blaze connection

External view(Unit: in (mm))

– 30 –

<Installation space>(Unit: in (mm))

3.94"(100) or more

1.97"(50) or more

<RBM-Y0383FUL / Y0613FUL>

3.94"(100) or moreOutdoor unit side Indoor unit side

13.8"(350) or more

1.97"(50) or more

<RBM-Y0383FUL (When attached pipes are used)>

3.94"(100) or more

9.85"(250) or more9.85"(250) or more

9.85"(250) or more

19.7

"(50

0) o

r m

ore

(6.89"(175))

(7.09"(180))

Electrical control box cover

17.7"×17.7"(450x450) Check, parts

Hanging bracket

or more

15.8"(400) or more 15.8"(400) or more

3.94"(100) or more

3.94"(100) or more

<RBM-Y0963FUL>

3.94"(100) or more

27.6

"(70

0) o

r m

ore

Electrical control box cover

23.6"×23.6"(600x600)Check, parts

Hanging bracket

or more

Outdoor unit side Indoor unit side

– 31 –

No. Parts Name Model SpecificationMMY-MAP

072 096 120

1 Compressor DA421A3FB-28M Output: 2.3kW × 2 — —

Output: 2.1kW × 3 — —

Output: 2.7kW × 3 — —

3 PMV coil HAM-MD12TF-6 DV12V

15 Fan motor STF-340A1000-1 DC280V/1kW

16 Case heater (For comp.) AC240V/29W

17 Case heater (For accum.) AC240V/55W

18 Fusible plug 163.4˚F (73˚C)

8 2-way valve VPV-603DQ2 SV3B

4 2-way valve coil VPV-MOAQ1843A0 AC208 ~ 230V, 60Hz

12 High-pressure SW ACB-4UB3 OFF : 540psi (3.73MPa)ON : 420psi (2.9MPa)

13 Pressure sensor (For high pressure)

NSK-BC038F-U22 0.5~4.3V/0~540psi (3.73MPa)

14 Pressure sensor (For low pressure)

NSK-BC010F-U22 0.5~3.5V/0~142psi (0.98MPa)

SV2

SV3A

SV3B

SV3C

2 4-way valve coil STF-01AQ1839UA1 AC208 ~ 230V, 60Hz

5 2-way valve coil FQ-D640 AC208 ~ 230V, 60HzSV41

SV42

SV43 —

SV5

SV3D

SV3E

SV3F —

SV6

9 2-way valve FDF3A06 SV41

SV42

SV43

6 2-way valve coil SR53 AC200L1500 AC208 ~ 230V, 60HzSV11

SV14

7 2-way valve VPV-303DQ1 SV3E

SV3F

—

—

10 2-way valve VPV-122DQ1 SV2

SV3A

SV3C

SV3D

SV3E

SV6

11 2-way valve SR53-04WR BA SV11

SV14

SV5

—

— —

3. PARTS RATING3-1. Outdoor Unit(208/230V model: MMY-MAP∗∗∗4FT9UL)

– 32 –

No. Parts Name Model SpecificationMMY-MAP

072 096 120

1 Compressor DA421A3FB-29M1 Output: 2.3kW × 2 — —

Output: 2.1kW × 3 — —

Output: 2.7kW × 3 — —

3 PMV coil HAM-MD12TF-6 DV12V

15 Fan motor STF-340A1000-1 DC280V/1kW

16 Case heater (For comp.) AC240V/29W

17 Case heater (For accum.) AC240V/55W

18 Fusible plug 163.4˚F (73˚C)

8 2-way valve VPV-603DQ2 SV3B

4 2-way valve coil VPV-MOAQ1843A0 AC208 ~ 230V, 60Hz

12 High-pressure SW ACB-4UB3 OFF : 540psi (3.73MPa)ON : 420psi (2.9MPa)

13 Pressure sensor (For high pressure)

NSK-BC038F-U22 0.5~4.3V/0~540psi (3.73MPa)

14 Pressure sensor (For low pressure)

NSK-BC010F-U22 0.5~3.5V/0~142psi (0.98MPa)

SV2

SV3A

SV3B

SV3C

2 4-way valve coil STF-01AQ1839UA1 AC208 ~ 230V, 60Hz

5 2-way valve coil FQ-D640 AC208 ~ 230V, 60HzSV41

SV42

SV43 —

SV5

SV3D

SV3E

SV3F —

SV6

9 2-way valve FDF3A06 SV41

SV42

SV43

6 2-way valve coil SR53 AC200L1500 AC208 ~ 230V, 60HzSV11

SV14

7 2-way valve VPV-303DQ1 SV3E

SV3F

—

—

10 2-way valve VPV-122DQ1 SV2

SV3A

SV3C

SV3D

SV3E

SV6

11 2-way valve SR53-04WR BA SV11

SV14

SV5

—

— —

3-2. Outdoor Unit(460V model: MMY-MAP∗∗∗4FT6UL)

– 33 –

3-3. Outdoor Inverter208/230V model: MMY-MAP∗∗∗4FT9UL

No. Name Model SpecificationMMY-MAP

1 Power supply terminal block HP-T3015-31-3P-L3S AC600V/100A,3P

096 120072

2 Relay terminal block for power supply JXO-6003 AC600V/60A,3P

3 Relay terminal block for power supply JXO-6003 AC600V/60A,3P

4

—

—Relay terminal block for reactor JXO-3006 AC600V/30A,6P

5 Communication terminal block JXO-B2H AC30V (or no more then DC42V)

6 Reactor (For comp.) CH-80 1.4mH/25A

7 Reactor (For fan) CH-55 5.8mH/14A

8 P. C.board (Noise filter) MCC-1608 —

9 Line filter — 0.9mH/AC500V/65A

10 P. C.board (I/F board) MCC-1606 —

11 P. C.board (IPDU for comp.) MCC-1595 —

14 P. C.board (IPDU for fan) MCC-1610 —

12 Fuse (MCC-1595) CES15 30AF924 30A/AC250V (P. C.board)


16 Fan motor drive IPM (MCC-1610) FSBB20CH60C 20A/DC600V (P. C.board)

17 Pipe temp. sensor (TD) — –22˚F to 275˚F (–30˚C to 135˚C)(Ambient temp. range)

21 Oil temp. sensor (TK) — –22˚F to 275˚F (–30˚C to 135˚C)(Ambient temp. range)

18 Pipe temp. sensor (TS) — –4˚F to 176˚F (–20˚C to 80˚C)(Ambient temp. range)

19 Heatexchanger temp. sensor (TE) — –4˚F to 176˚F (–20˚C to 80˚C)(Ambient temp. range)

20 Outside temp sensor (TO) — –4˚F to 176˚F (–20˚C to 80˚C)(Ambient temp. range)

22 Liquid temp. sensor (TL) — –4˚F to 176˚F (–20˚C to 80˚C)(Ambient temp. range)

13 Comp. motor drive IPM (MCC-1595) PS21A79 50A/DC600V (P. C.board)

– 34 –

3-4. Outdoor Inverter460V model: MMY-MAP∗∗∗4FT6UL

No. Name Model SpecificationMMY-MAP

1 Power supply terminal block HP-T3015-31-3P-L3S AC600V/100A,3P

096 120072

2 —Relay terminal block for reactor JXO-6B AC250V/20A,6P

3 Communication terminal block JXO-B2H AC30V (or no more then DC42V)

4 Reactor (For comp.) CH-79 5.8mH/16A

5 Reactor (For fan) CH-55 5.8mH/14A

6 P. C.board (Noise filter) MCC-1625 —

7 Line filter — 2.7mH/35A

8 P. C.board (I/F board) MCC-1606 —

9 P. C.board (IPDU for comp.) MCC-1596 —

10 Fuse (MCC-1596) GAC1 31.5A 31.5A/AC500V (P. C.board)

11 Comp. motor drive IPM (MCC-1596) PS22A76 25A/DC1200V (P. C.board)

14 Fan motor drive IPM (MCC-1610) FSBB20CH60C 20A/DC600V (P. C.board)

12 P. C.board (IPDU for fan) MCC-1610 —

15 Magnet contactor FC-1SUL AC220-240V

16 PTC thermistor MZ32-101RMARD01E 13A/AC500V

17 Pipe temp. sensor (TD) — –22˚F to 275˚F (–30˚C to 135˚C)(Ambient temp. range)

21 Oil temp. sensor (TK) — –22˚F to 275˚F (–30˚C to 135˚C)(Ambient temp. range)

18 Pipe temp. sensor (TS) — –4˚F to 176˚F (–20˚C to 80˚C)(Ambient temp. range)

19 Heatexchanger temp. sensor (TE) — –4˚F to 176˚F (–20˚C to 80˚C)(Ambient temp. range)

20 Outside temp sensor (TO) — –4˚F to 176˚F (–20˚C to 80˚C)(Ambient temp. range)

22 Liquid temp. sensor (TL) — –4˚F to 176˚F (–20˚C to 80˚C)(Ambient temp. range)


– 35 –

3-5. Parts Layout in Outdoor Unit072 typeModel: MMY-MAP0724FT∗

– 36 –

096, 120 typeModel: MMY-MAP0964FT∗, MAP1204FT∗

– 37 –

3-6. Parts Layout in Inverter Assembly208/230V model: MMY-MAP0724FT9UL

– 38 –

208/230V model: MMY-MAP0964FT9UL, MMY-MAP1204FT9UL

– 39 –

460V model: MMY-MAP0724FT6UL

– 40 –

460V model: MMY-MAP0964FT6UL, MMY-MAP1204FT6UL

– 41 –

3-7. Outdoor (Inverter) print circuit board3-7-1. Interface P.C. board (MCC-1606)

– 42 –

3-7-2. Inverter P.C. board for compressor (MCC-1595) A3-IPDUFor 208/230V model : MMY-MAP∗∗∗ 4FT9UL

– 43 –

3-7-3. Inverter P.C. board for compressor (MCC-1596) A3-IPDUFor 460V model : MMY-MAP∗∗∗4FT6UL

– 44 –

3-7-4. Inverter P.C. board for fan motor (MCC-1610) FAN-IPDU

– 45 –

3-7-5. Noise Filter P.C. board (MCC-1608 -A, -B)For 208/230V model : MMY-MAP∗∗∗4FT9UL

– 46 –

3-7-6. Noise Filter P.C. board (MCC-1625 -A, -B, -C)For 460V model : MMY-MAP∗∗∗4FT6UL

– 47 –

S V

FanFan motorFM

(TO)

Right side

Main heat exchanger

Main heat exchanger

Right side sub heat exchanger

Left side sub heat exchanger

Left side

PMV 4

(TE 1)

PMV 2PMV 1

(TE 2)SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

(SV 11)

(SV 5)

(TL)(SV 6) Check joint(High pressure)

High pressure sensor

(SV 2)

Accumulator

(SV 3D)

Oil separatorLiquid tank

Fusibleplug

FP

(SV

14)

(TK 1)

(SV 3E)(TK 5)

Oil header

(SV 3A)

Solenoidvalve

Capillarytube

Checkvalve

Check joint

Tempe.sensor DistributorStrainer

Balance pipe

servicevalve

Suction gas sideservice

valve

Dischagegas sideservice

valve

Liquid side

service valve

Check joint(Liquid pipe)

(SV 3B)

(TK 2)

(SV 41)

(TD 1)

(SV

3C

)

(TK

4)

Comp. 1

Comp. 2

HighpressureSW

HighpressureSW

(SV 42)

(TD 2)

(Inverter)(Inverter)

(TS 2)

(TS 1) Lowpressure sensor

Check joint(Low pressure)

4-way valve

Sym

bol

Fusibleplug

FP

4. REFRIGERANT PIPING SYSTEMATIC DRAWINGModel: MMY-MAP0724FT UL

– 48 –

FanFan motorFM

(TO)

Right side

Main heat exchanger

Main heat exchanger



Left side

PMV 4(TE 1)

PMV 2PMV 1

(TE 2)SV

SV

SV

SV

SV

SV SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

(SV 11)

(SV 6)

(SV 5)

(TL)

FP


Check joint ( High pressure)

(SV 2)

Accumulator

(SV 3D)

Oil separatorLiquid tank

Fusibleplug

(SV

14)

(TK 1) (TK 2) (TK 3)

(SV 3E)(TK 5)

Oil header

(SV 3A)

Solenoidvalve

Capillarytube

Checkvalve

Check joint

Tempe.sensor

DistributorStrainer

Balance pipe

servicevalve

Suction gas sideservice

valve

Dischagegas sideservice

valve

Liquid side

servicevalve

(Liquid pipe)

(SV 3B)

(SV 3F)

(SV 41)

(TD 1)

(SV

3C

)

(TK

4)

Comp. 1

Comp. 2

HighpressureSW

HighpressureSW

HighpressureSW

(SV 42)

(SV 43)

(TD 2) (TD 3)

(Inverter)

Comp. 3


(TS 2)

(TS 1) Lowpressure sensor


4-way valve

Sym

bol

Check joint

Fusibleplug

FP

Model: MMY-MAP0964FT UL, MMY-MAP1204FT UL

– 49 –

Functional part name Functional outline

Solenoid valve

SV3A (Connector CN321: White)1) Supplies oil reserved in the oil header during ON time.

SV3B (Connector CN321: White)1) Returns oil supplied in the balance pipe to the compressor.

SV3C (Connector CN321: White)1) Pressurizes oil reserved in the oil header during ON time.

SV3E (Connector CN322: White)1) Turns on during operation and balances oil between compressors.

TS1 (Connector CN505: White)1) Controls PMV1, 2 super heat in all heating / mainly heating

TS2(Connector CN506: Black)1) Controls indoor oil recovery at all cooling, mainly cooling2) Detects overheat of the cycle

TE2 (Connector CN521: Red)1) Controls flow volume of the sub heat exchanger at simultaneous operation

(Compressor 1 Connector CN331: White, Compressor 2 Connector CN332: Blue, Compressor 3 Connector CN333: Black)1) Prevents liquid accumulation to compressor

Compressorcase heater

(Connector CN334: Red)1) Prevents liquid accumulation to accumulator

1) Oil balancing in each outdoor unitBalance pipe

Accumulatorcase heater

TL (Connector CN523: White)1) Detects under cool at all operation / mainly cooling operation

TO (Connector CN507: Yellow)1) Detects outside temperature

Oil separator

Temp. Sensor

Pressure sensor

Heater

1) Prevention for rapid decreasing of oil (Decreases oil flowing to the cycle)2) Reserve function of surplus oil

SV5(Connector CN314: White)1) Gas balance function at defrost operation when the number of heating indoor units increased/decreased 2) Gas recovery function in the discharge gas pipes when the all cooling operation

SV6(Connector CN315: White)1) Liquid bypass function for discharge temperature release (cooling bypass function)2) Refrigerant recovery function from the stopped follower unit

SV3F (Connector CN323: White)1) Controls oil level balances between compressors.

SV11 (Connector CN319: White)To block discharge gas pipe (At all cooling or defrost operation)

SV14 (Connector CN336: Yellow)1) To block the liquid line

SV2

(Connector CN311: White) Hot gas bypass1) Low pressure release function2) High pressure release function3) Gas balance function during stop time

High pressuresensor

(Connector CN501: Red)1) Detects high pressure and controls compressor capacity2) Detects high pressure at all operation / mainly cooling operation, and controls the fan in low ambient cooling operation3) Detects under cool in indoor unit at all operation / mainly heating operation4) Controls rps of outdoor fan at mainly cooling operation

SV41SV42SV43

(SV41 Connector CN312: Blue, SV42 Connector CN312: Blue, SV43 Connector CN313: Red)Start compensation valve of compressor1) For gas balance start2) High pressure release function3) Low pressure release function

PMV1, 2(Connector CN300, 301: White)1) Super heat control function at all heating, mainly heating operation2) Under cool control function in all cooling operation

SV3D(Connector CN322: White)1) Reserves oil in the oil separator during OFF time.2) Returns oil reserved in the oil separator to the compressor during ON time.

PMV4(Connector CN303: Red)1) Controls flow volume of the auxiliary heat exchanger at collective operation2) Preventive function for high-pressure rising in all heating operation

TE1(Connector CN520: Green)1) Controls defrost in all / mainly heating operation2) Controls outdoor fan in all / mainly heating operation

(TD1 Connector CN502: White, TD2 Connector CN503: Pink, TD3 Connector CN504: Blue)1) Protection of compressor discharge temp.TD1,TD2,TD3

(TK1 Connector CN531: Black, TK2 Connector CN532: Green, TK3 Connector CN533: Red, TK4 Connector CN534: Yellow,TK5 Connector CN535: Red)1) Judges oil level of the compressor

TK1, TK2TK3, TK4TK5

(Connector CN500: White)1) Detects low pressure at all cooling operation / mainly cooling operation and controls compressor capacity2) Detects low pressure at all cooling operation / mainly heating operation, and controls the super heat

Low pressuresensor

4-way valve

Pulse motorvalve

(Connector CN317:Blue)1) Cooling/heating exchange2) Reverse defrost3) Exchange of main heat exchanger with sub heat exchanger

Explanation of Functional Parts

– 50 –

Configuration of outdoor unit heat exchanger

Fan motor

Winddirection

Winddirection

Winddirection

Winddirection

Propeller fan Propeller fan

Left side Right side Left side Right side

Fan motor

Main heat exchanger

MMY-MAP0724FT∗ MMY-MAP0964FT∗MMY-MAP1204FT∗

RBM-Y0383FUL

RBM-Y0963FUL

RBM-Y0613FUL

SV

SV

(SV

D) (S

VD

)

(SV

D)

(SV

D)

(SV

DD

)

(SV

DD

)

(SV

DD

)

(SVS)

(SVS)

(SV

SS

)

(SV

SS

)

(SV

SS

)

SVS

V

SV

SV

SV

SVS

V

SV

SV

SV

SV

SV

(SVS)SVS

V

Liquid pipe

Liquid pipe

Dischargegas pipe

Dischargegas pipe

Strainer StrainerStrainer

StrainerStrainer

Strainer

Strainer

Strainer

Strainer

Check valve Check valve

Check valve

Check valve

Check valve

Capillary Capillary

Capillary CapillaryCapillary

CapillaryCapillary

CapillaryCapillary

Suctiongas pipe

Suctiongas pipe

Liquid pipe

Dischargegas pipe

Suctiongas pipe

To indoorliquid side


To indoorgas side

To indoorgas side


To indoorgas side

Main heat exchanger

Sub heatexchanger

Sub heatexchanger

Functional parts name

Solenoid valve SVD

SVS

SVDD

SVSS

Function outline

(Discharge gas block valve) 1) High-pressure gas circuit at heating operation

(Suction gas block valve) 1) Low-pressure gas circuit at cooling operation

(Pressure valve)1) To increase pressure when No. of indoor heating units are increased

(Regulator valve) 1) To recover refrigerant in the stopped cooling thermo-OFF indoor unit2) To decrease pressure when No. of indoor heating units are decreased

– 51 –

Before exchange

After exchange

All heating(ON)

Mainly heating(ON)

Mainly cooling(ON)

All cooling(OFF)

Momentary stop(OFF ON)

Operation continuation(OFF ON)

Operation continuation(OFF ON)

All cooling(OFF)

Operation continuation(ON as it is)


Operation continuation(ON OFF)

Mainly cooling(ON)



Momentary stop(ON OFF)

Mainly heating(ON)



Momentary stop(ON OFF)

All heating(ON)

Control valve output outline of cooling/heating exchange unit (Operation standard)

SVD(High-pressure circuit valve)

SVDD(Pressure valve <For delay>)

SVS(Low-pressure circuit valve)

SVSS(Regulator valve <For delay>)

Note) In the table, status of 4-way valve is indicated in parenthesis.

Indoor operation mode

OFF<OFF>

1. Stop (Remote controller OFF)<When all the system stop>

OFF<OFF>

OFF<OFF>

ON<OFF>

OFF2. Cooling thermo OFF OFF OFF ON

OFF3. Cooling thermo ON OFF ON ON

OFF6. During detection of [E04] error ON OFF OFF

ON4. Heating thermo OFF

OFF OFF OFF5. Heating thermo ON

5. SYSTEM REFRIGERANT PIPING SCHEMATIC DIAGRAMS<Exchange of operation mode>For exchange between each operation mode, follow the table below: When “Momentary stop” is executed, theunit does not operate for 3 minutes after stop of operation before update.

<Exchange unit valve ON-OFF list>

– 52 –

SV

PMV2 PMV2PMV1 PMV1

PMV4 PMV4

FM Fan motorFan

FM Fan motorFan

TO TORight side Right side

Mainheat exchanger

Mainheat exchanger

Mainheat exchanger

Mainheat exchanger

Right side sub heat exchanger Right side sub heat exchanger

Left side Left side

Left side sub heat exchanger Left side sub heat exchanger

SV

SV SV

SV

SV

SV

SV

SV

SV

SV SV

SV

SV

SV

SV

SV

TE1 TE1

TE2 TE2SV11 SV SV11

SV5 SV SV5

SV6

SV

SV6Check joint( High pressure)

Check joint( High pressure)



SV2 SVSV2

SV42SV43

TD3

TK3

SV3F

TK2 TK2

Oil header Oil header

SV3B SV SV3B

Balance pipeLiquid pipe

Dischage gas pipeSuction gas pipe

SV

3A

SV

SV

3A

SV

D

SV

D

SV

DSV

S

SV

S

SV

SSV

DD

SV

DD

SV

DDS

VS

S

SV

SS

SV

SS

PM

V

PM

V

PM

V

PM

V

TC1 TC1 TC1

Cooling Cooling Cooling Stop

Indo

or u

nit

FS

uni

t

TC2 TCJ TC2 TCJ TC2 TCJ TC1TC2 TCJ

SV

SV

SV

SV

DS

V

SV

SV

DD

SV

SV

SVS

V

SV

SV

SV

SV

SS

SV

SV

SV

SS

V

SV

TK5 TK5

TK1 TK1

TD2

SV3D SV3D

Oil separator Oil separator

SV41SV

SV41

TL TL

FP FP

Liquid tank

Liquid tank

SV14

SV SV14



SV

3E

SV

SV

3E

TD1 TD1

Comp.1

HighpressureSW

HighpressureSW

HighpressureSW

HighpressureSW

HighpressureSW

(Inverter)

Comp.1

(Inverter)

Comp.2

Comp.3

(Inverter)

Comp.2


SV

3C SV

SV

3C

Accumulator Accumulator

TS2 TS2

Checkjoint(Lowpressure


Lowpressuresensor

Lowpressuresensor

TS1 TS1

4-wayvalve

4-wayvalve

Fusibleplug Fusible

plug

4-Way valveSV4(n)SV5SV6SV11SV14

PMV4PMV1, 2

ON

ON

OFFControl

ControlOFF

SV3ASV3BSV3CSV3DSV3ESV3F

Outdoor fan

Outdoor UnitControlControlControlControl

ONControlControl

The outdoor unit which communication line between indoor and outdoor is connected is the “Header unit”.Other outdoor units are called “Follower units”.

FS unit / indoor unit Cooling thermo ON

SVDSVS

SVDDSVSSPMV

StopOFFON

ONOFF

Control

SVDSVS

SVDDSVSSPMV

(14 Ton system described in the example of (8 Ton + 6 Ton))

High-pressure gas refrigerant

Condensed liquid refrigerant

Evaporative gas refrigerant (Low pressure)

Pressure circuit (High-pressure refrigerant)

Low-pressure circuit (Refrigerant recovery line)

OFFOFFOFFON

Close

FPFusibleplug

FPFusibleplug

5-1. All Cooling mode (Operation of cooling only) when outside temperature is high(Standard: 50°F or higher) / Defrost mode

Outdoor header unit (MMY-MAP0964FT∗UL) Outdoor follower unit (MMY-MAP0724FT∗UL)

– 53 –

5-2. All Cooling mode (Operation of cooling only) when outside temperature is low(Standard: 50°F or lower)


PMV2PMV1

PMV4

FM Fan motorFan

FM Fan motorFan

TOTORight side

Mainheat exchanger

Mainheat exchanger


Left side


Right side

Mainheat exchanger

Mainheat exchanger


Left side


SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

TE1

TE2

PMV2PMV1

PMV4

TE2SV11 SV SV11

SV SV5 SV SV5

SV6

SV





SV2 SVSV2

SV42SV43

TD3

TK3

SV3F

TK2


SV3B SV SV3B



SV

3A

SV

SV

3A

TK5 TK5

TK1 TK2TK1

TK4

TD2

SV

SV42

TD2

SV3D

Oil separator

SV

SV3D

Oil separator

SV41

TL

FP FP

Liquid tank

Liquid tank

SV14

SV SV14



SV

3E

SV

SV

3E

TD1

SV

SV41

TD1

Comp.1

HighpressureSW High

pressureSW

HighpressureSW

HighpressureSW

(Inverter)

Comp.1

(Inverter)

Comp.2

Comp.3

(Inverter)

Comp.2


SV

3C

SV

TK4

SV

3C


TS2

Lowpressuresensor

TS1

4-wayvalve

SV

D

SV

D

SV

DSV

S

SV

S

SV

S

SV

DD

SV

DD

SV

DDS

VS

S

SV

SS

SV

SS

PM

V

PM

V

PM

V

PM

V

TC1 TC1 TC1

Cooling Cooling Cooling Stop

Indoor

unit

FS

unit


SV

SV

SV

SV

D

SV

SV

SV

DD

SV

SV

SVS

V

SV

SV

SV

SV

SS

SV

SV

SV

S

SV

SV

Fusibleplug

HighpressureSW

Fusibleplug

Checkjoint(Lowpressure T

S2

Lowpressuresensor

TS1

4-wayvalve



PMV4PMV1, 2

ON

OFFControl

Control

ONOFF


Outdoor fan


ONControlControl


SVDSVS

SVDDSVSSPMV

StopOFFON

ONON

Control

SVDSVS

SVDDSVSSPMV







OFFOFFOFFON

Close


FPFusibleplug

FPFusibleplug

– 54 –

5-3. All Heating mode (Operation of heating only)


SV

PMV2

PMV4

PMV1 PMV2PMV1

TO TO

FM Fan motor FM Fan motorFan Fan

Right side

Mainheat exchanger

Mainheat exchanger


Left side


Right side

Mainheat exchanger

Mainheat exchanger


Left side


SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

TE2 TE2

PMV4TE1 TE1

SV11

SV SV5 SV SV5

SV6

SV





SV2 SVSV2

SV42SV

SV42SV43

TD3

TK3

TK4TK4

SV14

SV3F

TK2


SV3B SV SV3B



SV

3A

SV

SV

3A

TK1 TK2TK1

TK5 TK5

TD2 TD2

SV3D

Oil separator

SV

SV3D

Oil separator

SV41

TL

FP FP

Liquid tank

Liquid tank

SV14

SV



SV

3E

SV

SV

3E

TD1

SV

SV41

TD1

Comp.1

HighpressureSW

HighpressureSW

HighpressureSW

(Inverter)

Comp.1

(Inverter)

Comp.2

Comp.3

(Inverter)

Comp.2


SV

3C

SV

SV

3C


TS2 TS2

Lowpressuresensor

wpressuresensor

TS1 TS1

4-wayvalve

4-wayvalve

SV

D

SV

D

SV

DSV

S

SV

S

SV

S

SV

DD

SV

DD

SV

DDS

VS

S

SV

SS

SV

SS

PM

V

PM

V

PM

V

PM

V

TC1 TC1 TC1

Heating Heating Heating thermo OFF Stop

Indo

or u

nit

FS

uni

t


SV

SV

SV

D

SV

SV

SV

SV

DD

SV

SV

SVS

V

SV

SV

SV

SV

SS

SV

SV

SV

S

SV

SV

Fusibleplug

HighpressureSW High

pressureSW

Fusibleplug




PMV4PMV1, 2

ON

OFFControl

Control

ON


Outdoor fan


ONControlControl

Control

FS unit / indoor unit Heatling thermo ON

SVDSVS

SVDDSVSSPMV

StopONOFFOFFOFF

Heatling thermo OFFSVDSVS

SVDDSVSSPMV

ONOFFOFFOFFOFF

SVDSVS

SVDDSVSSPMV







OFFOFFOFFON

Close


FPFusibleplug

FPFusibleplug

– 55 –

5-4. Mainly cooling mode (Operating cooling function mainly, collective operation ofcooling and heating operation)


PMV1 PMV2

PMV4

TE2

PMV1 PMV2

PMV4

TE2

TE1 TE1

FMFan

Fan motor

TO

Right side

Mainheat exchanger

Mainheat exchanger


Left side


FMFan

Fan motor

TO

Right side

Mainheat exchanger

Mainheat exchanger


Left side


SV11

SV5SV SV5SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SVS

V

SV

SV

SV

SV

SV

SV

SV S

VS

V

SV SV11SV

SV

SV SV SV

SV

SV

SV

SV

SV

SV

FP

Liquidtank

Liquidtank

TL TLSV6

SV

SV6

SV3D

HighpressureSW

HighpressureSW

HighpressureSW

Oil separator SVSV3D

Oil separator

Check joint SV6( High pressure)

High pressuresensor

Check joint SV6( High pressure)


SV2

SV42

SV

SV42

TK4 TK4

SV41

TD1

SVSV41

TD1

Comp.1

(Inverter)

Comp.1

(Inverter)

Comp.2

(Inverter)

Comp.2

(Inverter)

Comp.3

(Inverter)

TD2 TD2TD3

SV

D

SV

D

SV

D

SV

D

SV

DD

SV

DD

SV

DD

SV

DD S

VS

S

SV

SS

PM

V

SV

S

SV

S

SV

SS

SV

S

SV

SS

SV

S

Checkjoint(Liquidpipe)

SV

14


Dischage gas pipe

Suction gas pipe

TK5

TK3TK2TK1 TK2TK1

SV

3E

SV

3A

SV3BS

VSV

SV

3A

SV3B

Oil header

SV

TK5

SV

3E

Oil header

SV3F

SV

14


SV

3C

SV

SV

3C

SV43

Accumulator

SV SV2

Accumulator

TS2

Checkjoint(Lowpressure)

Lowpressuresensor

TS1

TS2


Lowpressuresensor

TS1

4-wayvalve

4-wayvalve

Fusibleplug FP

Fusibleplug

TC2 TCJ TC1

PM

V

TC2 TCJ TC1

PM

V

TC2 TCJ TC1

Stop HeatingCooling

PM

V

TC2 TCJ TC1

Cooling

Indo

or u

nit

FS

uni

t

HighpressureSW

HighpressureSW


PMV4PMV1, 2

ON

OFFControl

Control

ON


Outdoor fan


ONControlControl

Control

FS unit / indoor unit Heating thermo ON Heating thermo OFF

SVDSVS

SVDDSVSSPMV

Stop

ON

ON

OFF

OFF

SVDSVS

SVDDSVSSPMV







OFF

OFFOFF

ON

OFF

SVDSVS

SVDDSVSSPMV

OFFOFFOFFON

Close


FPFusibleplug

FPFusibleplug

– 56 –

5-5. Mainly heating mode (Operating heating function mainly, collective operation ofcooling and heating operation)


PMV1 PMV2

PMV4

TE2

TE1

FMFan

Fan motor

TO

Right side

Mainheat exchanger

Mainheat exchanger


Left side


FMFan

Fan motor

TO

Right side

Mainheat exchanger

Mainheat exchanger


Left side


SV11

SV5SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SVS

V

SV

SV

SV

SV

SV

SV

SV S

VS

V

SV

SV

SV

SV SV

SV

SV

SV

SV

SV

SV

FP

Liquidtank

Liquidtank

TLSV6

SV11

SV3D

SV41 HighpressureSW

HighpressureSW

HighpressureSW

Oil separator

SV5SV

SV

SV

SV6

SV3DOil separator


High pressuresensor

SV42

TK4

Comp.1

(Inverter)

Comp.1

(Inverter)

Comp.2

(Inverter)

Comp.2

(Inverter)

Comp.3

(Inverter)

TD2

TK4

TD2TD1

SV

SV41

TD1

SV

SV

SV42

SV2

TD3

SV

D

SV

D

SV

D

SV

D

SV

DD

SV

DD

SV

DD

SV

DD S

VS

S

SV

SS

PM

V

SV

S

SV

S

SV

SS

SV

S

SV

SS

SV

S


SV

14


Dischage gas pipe

Suction gas pipe

TK5

TK3TK2TK1 TK2TK1

SV

3E

SV

3A

SV3BS

VSV

SV

3A

SV3B

Oil header

SV

TK5S

V3E

Oil header

SV3F

SV

14


SV

3C

SV

SV

3C

SV43

Accumulator

TS2


Lowpressuresensor

TS1

4-wayvalve



Accumulator

TS2


Lowpressuresensor

TS1

4-wayvalve

FP

TC2 TCJ TC1

PM

V

TC2 TCJ TC1

PM

V

TC2 TCJ TC1

StopHeating Heating

PM

V

TC2 TCJ TC1

Cooling

Indo

or u

nit

FS

uni

t

Fusibleplug

Fusibleplug

HighpressureSW

HighpressureSW


PMV4PMV1, 2

ON

OFFControl

Control

ON


Outdoor fan


ONControlControl

Control


FS unit / indoor unit Cooling thermo ON Cooling thermo OFF

SVDSVS

SVDDSVSSPMV

StopON

ONOFFOFFOFF

SVDSVS

SVDDSVSSPMV







OFFOFFOFFON

SVDSVS

SVDDSVSSPMV

OFF

OFFON

CloseClose

FPFusibleplug

FPFusibleplug

– 57 –

5-6. Emergency operation (All cooling operation at backup of the header unit)


PMV1 PMV2

PMV4

TE2

TL TL

TE1

PMV1 PMV2

PMV4

TE2

TE1

FMFan

Fan motor

TO

When PMV leaked, service valve at liquid side = Close fully

Trouble Temporal set header unit inemergency operation

Right side

Mainheat exchanger

Mainheat exchanger


Left side


FMFan

Fan motor

TO

Right side

Mainheat exchanger

Mainheat exchanger


Left side


SV5

SV11

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SVS

V

SV

SV

SV SV

SV

SV

SV S

VS

V

SV

SVSV5

SV11

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

FP

Liquidtank

Liquidtank

SV6

SV

SV6

SV3D

SV

SV3DSV41 High

pressureSW

HighpressureSW

HighpressureSW

HighpressureSW

HighpressureSW

Oil separator


High pressuresensor

SV42

SV2 SVSV2

Comp.1

(Inverter)

Comp.2

(Inverter)

Comp.3

(Inverter)

TD2TD1 TD3

SV

D

SV

D

SV

D

SV

D

SV

DD

SV

DD

SV

DD

SV

DD S

VS

S

SV

SS

PM

V

SV

S

SV

S

SV

SS

SV

S

SV

SS

SV

S


SV

14


Dischage gas pipe

Suction gas pipe

TK5

TK3TK2TK1 TK3TK2TK1

SV

3E

SV

3A

SV3BS

VSV

SV

3A

SV3B

Oil header

SV3F

SV SVTK5

SV

3E

Oil header

SV3F

SV

14


SV

3C

SV43

SV

SV SVSV

SV41 SV42

Comp.1

(Inverter) (Inverter)

Comp.3

(Inverter)

TD2TD1 TD3

SV

3C

SV43

Accumulator

TS2


Lowpressuresensor

TS1

4-wayvalve


High pressuresensor

Accumulator

TS2


Lowpressuresensor

TS1

4-wayvalve

FP

TC2 TCJ TC1

PM

V

TC2 TCJ TC1

PM

V

TC2 TCJ TC1

StopCoolingCooling

PM

V

TC2 TCJ TC1

Cooling

Indo

or u

nit

FS

uni

t

Fusibleplug

Fusibleplug

HighpressureSW

Comp.2


PMV4PMV1, 2

ONON

OFFOFFOFFOFF

OFFOFF

OFF

OFF

ControlON

OFFCloseClose


Outdoor fan

Trouble header outdoor unit Temporal header outdoor unit4-Way valve

SV4(n)SV5SV6SV11SV14

PMV4PMV1, 2

ON

ONControl

ControlOFFOFF


Outdoor fan

ControlControlControlControl

ONControlControl









SVDSVS

SVDDSVSSPMV

StopOFF

OFFON

ONControl

SVDSVS

SVDDSVSSPMV

OFFOFFOFFON

Close

FPFusibleplug

FPFusibleplug

FPFusibleplug

– 58 –


5-7. Emergency operation (All heating operation at backup of the header unit)

PMV1 PMV2

PMV4

TE2

TE1

FMFan

Fan motor

TO

Right side

Mainheat exchanger

Mainheat exchanger


Left side


SV5

SV11

SV

SV

SV

SV

SV

SV

SV

SV

SV

SVS

V

SV

SV

SV

SV

SV

SV

SV S

VS

V

SV

SV

PMV1 PMV2

PMV4

TE2

TE1

FMFan

Fan motor

TO

Right side

Mainheat exchanger

Mainheat exchanger


Left side


SV11SV

SV SV

SV

SV

SV

SV

SV

SV

SV

FP

Liquidtank

Liquidtank

SV6TL TL

SV3D

SV41 HighpressureSW

HighpressureSW

HighpressureSW

Oil separator


High pressuresensor

SV42

SV

SV

SV2

SV42

SV

SV2

Comp.1

(Inverter)

Comp.2

(Inverter)

Comp.3

(Inverter)

TD2TD1 TD3

SV

D

SV

D

SV

D

SV

D

SV

DD

SV

DD

SV

DD

SV

DD S

VS

S

SV

SS

PM

V

SV

S

SV

S

SV

SS

SV

S

SV

SS

SV

S


SV

14


Dischage gas pipe

Suction gas pipe

TK5

TK3TK2TK1

SV

3E

SV

3A

SV3B

SV

SV

SV

3A

SV3B

Oil header

SV3F

SV SV

TK5S

V3E

Oil header

SV3F

SV

14


SV

3C

SV

SV

SV41

Comp.1

(Inverter)

Comp.2

(Inverter)

Comp.3

(Inverter)

TD2TD1 TD3

TK3TK2TK1

SV

3C

SV43 SV SV43

Accumulator

TS2

Lowpressuresensor

TS1

4-wayvalve

FP

TC2 TCJ TC1

PM

V

TC2 TCJ TC1

PM

V

TC2 TCJ TC1

Stop StopHeating

PM

V

TC2 TCJ TC1

Heating

Indo

or u

nit

FS

uni

t

When PMV leaked, service valve at liquid side = Close fully

Trouble

Fusibleplug


SV5SV SV

SV

SV

SV6

SV3DOil separator


High pressuresensor

Accumulator

TS2

Lowpressuresensor

TS1

4-wayvalve


Fusibleplug

HighpressureSW

HighpressureSW

HighpressureSW


PMV4PMV1, 2

OFFON

OFFON

OFFOFF

OFFOFF

ON

ON

ControlON

OFFCloseClose


Outdoor fan

Trouble header outdoor unit Temporal header outdoor unit4-Way valve


PMV4PMV1, 2

ON

OFFControl

Control

ON


Outdoor fan


ONControlControl








SVDSVS

SVDDSVSSPMV

Stop

OFFOFFOFFON

Control

SVDSVS

SVDDSVSSPMV

OFFOFFOFFON

Close


FPFusibleplug

FPFusibleplug

Temporal set header unit inemergency operation

– 59 –


5-8. Refrigerant recovery (during pump-down operation) of the troubled outdoor unit)(In case of trouble of follower unit)

PMV1 PMV2

PMV4

TE2

TE1

FMFan

Fan motor

TO

Right side

Mainheat exchanger

Mainheat exchanger


Left side


SV5SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SVS

V

SV

SV

SV SV

SV

SV

SV S

VS

V

SV

SV

SV SV

SV

SV

SV

SV

SV

SV

SV

Liquidtank

Liquidtank

SV6

SV11

PMV1 PMV2

PMV4

TE2

TE1

FMFan

Fan motor

TO

TS1

Right side

Mainheat exchanger

Mainheat exchanger


Left side


SV5SV

SV SV11

SV3D

SV2

SV41 HighpressureSW

HighpressureSW

HighpressureSW

Oil separator


High pressuresensor

SV42

Comp.1

(Inverter)

Comp.2

(Inverter)

Comp.3

(Inverter)

TD2

TK4

TD1 TD3

SV

D

SV

D

SV

D

SV

D

SV

DD

SV

DD

SV

DD

SV

DD S

VS

S

SV

SS

PM

V

SV

S

SV

S

SV

SS

SV

S

SV

SS

SV

S



SV

14

Balance pipe

Balance pipe packed valve = Open full

Liquid side service valve, dischage pipe service valve = Close full

Low pressure gas pipe service valve = Open full 10 minutes after operation = Close fullLiquid pipe

Dischage gas pipe

Suction gas pipe

TK5

TK3TK2TK1 TK2TK1

SV

3E

SV

3A

SV3BS

VSV

SV

3A

SV3B

Oil header

SV

TK5S

V3E

Oil header

SV3F

SV

14

SV

3C

SV43

SV

SV

SV41

Comp.1

(Inverter)

Comp.2

(Inverter)

TK4

TD1 TD2

SV

3C

Accumulator

TS2

Lowpressuresensor

TS1

TL

SV

SV

SV

SV6

SV3D

SV2Oil separator



Accumulator

TL

4-wayvalve

TC2 TCJ TC1

PM

V

TC2 TCJ TC1

PM

V

TC2 TCJ TC1

Cooling Cooling Cooling

PM

V

TC2 TCJ TC1

Cooling

Indo

or u

nit

FS

uni

t

Trouble

FP

Fusibleplug

Checkjoint(Lowpressure) TS2

Lowpressuresensor

FP

Fusibleplug


HighpressureSW High

pressureSW


PMV4PMV1, 2

OFF

ONControl

Control

ONOFFOFF


Outdoor fan

Trouble outdoor unitHeader outdoor unit4-Way valve


PMV4PMV1, 2

ON

OFFOFF

OFF

Control

Control


Outdoor fan


ONControlControl


ControlControl









SVDSVS

SVDDSVSSPMV

OFF

OFFON

ONControl

FPFusibleplug

FPFusibleplug

– 60 –

NO. Item Specification outline Remarks

1 Pulse motorvalve (PMV)control

1. PMV1, 2 control (PMV1 and 2)1)During air conditioner operation, the pulse count of a PMV (pulse motor valve) is

controlled between 90 and 1000.2)During all cooling, the PMV opening is controlled on the basis of measurements

provided by the TL temperature sensor and the Pd pressure sensor (under coolcontrol).

3)During all heating, the PMV opening is controlled on the basis of measurementsprovided by the TS and TD temperature sensors and the PS pressure sensor(super heat control).\

4) PMVs are fully closed when the air conditioner is in thermo OFF state or uponbeing turned off normally or shut down due to an abnormality.

• During allheating, collectiveheating, PMVcontrol may beprovided withPMV1 alone,operated at 45pulses(minimum), withPMV2 turned off.

PMV 1

PMV 2

1000

550500

90

45

Minimum Maximum

Ope

ning

of P

MV

1, 2

MAX1000

PM

V1,

2 o

peni

ng

Controlled between90 and 1000 pulses

– 10

SH control

2Cooling-heating demand capacity difference (Ton)

0

MAX500

PM

V4

open

ing

– 2 0 10Cooling-heating demand capacity difference (Ton)

Mainly cooling operation areaMainly heating operation area

042

2. PMV4 control1)PMV4 (Pulse Motor Valve) is controlled between 0 and 500 pulses at mainly

cooling / heating operation.2)PMV4 opening is controlled according to the demand capacity difference (Ton)

between cooling and heating operation.3)PMVs are fully closed when the air conditioner is in thermo OFF state or upon

being turned off normally or shut down due to an abnormality.

6. CONTROL OUTLINE

– 61 –


2 Outdoor fancontrol

1. All cooling fan control1)Outdoor fan speed (mode) is controlled on the basis of measurements provided

by the Pd pressure sensor.2)For a specified period after the start of cooling operation, the header outdoor

unit controls outdoor fan speed (mode) on the basis of measurements providedby the Pd pressure sensor. Follower units, on the other hand, control outdoor fanspeed (mode) on the basis of measurements provided by the TE1 temperaturesensor.

• The fan speedcorresponding tothe highest modevaries with theTon capacity ofthe outdoor unit.

283 (1.95)

290 (2.00)

312 (2.15)

341 (2.35)

355 (2.45)

384 (2.65)

435 (3.0)

[Highest mode]

[Current mode + 1](Mode raised as rapidly as every second)

[Current mode + 1]/50 seconds

[Hold]

[Current mode + 1]/75 seconds(Mode raised up to 13)

(Mode 1 to highest)

[Current mode - 1]/50 secondsMode being lowered:Highest mode - 1 1

Mode being raised: mode 0 1

[Current mode - 1](Mode lowered as rapidly as every two seconds)(down to mode 0)

Interval control[Mode [0]: 180 secondsMode [1]: 30 seconds]

Pdpressurepsi (MPa)

* Available control modes are 0 (at rest) to 63.

2. All heating fan control1)Outdoor fan speed (mode) is controlled on the basis of measurements provided

by the TE1 temperature sensor.2) If TE1 > 77°F (25°C) is continuously detected for 8 minutes, the fan may be

turned off.However, this condition is the same as normal thermo OFF, so that fan operationwill be restarted.

3)For a specified period after air conditioner startup and during defrosting, thiscontrol is disabled.

4)When refrigerant is in extremely short supply, this control may cause the airconditioner to be repeatedly turned on and off.

77 (25)

46.4 (8)

42.8 (6)

39.2 (4)

35.6 (2)

Zone A: Lowest mode, timer count for forced compressor shutdown

Zone B: -2/30 seconds (down to lowest mode)

Zone C: -1/30 seconds (down to lowest mode)

Zone D: Hold (staying at current mode)

Zone E: +1/30 seconds (up to highest mode)

Zone F: Highest mode

TE1 temperature˚F (˚C)

3. Mainly cooling fan controlThe outdoor fan rps (mode) is controlled by the objective condensationtemperature (Pd) during mainly cooling operation.

• The fan speedcorresponding tothe highest modevaries with the Toncapacity of theoutdoor unit.

[Mode at present + 1] / Until Min.1 second

[Mode at present + 1] / 40 seconds

HOLD (Keeps the mode at present)

[Mode at present – 1] / 40 seconds



466 (3.21)

Pd (psi(MPa))

455 (3.14)

426 (2.94)

415 (2.86)

400 (2.76)

450 (3.10)

At heatingthermo-ON

At heatingthermo-OFF

426 (2.94)

395 (2.72)

387 (2.67)

373 (2.57)

4. Control while follower unit stopsTo prevent refrigerant stagnation into heat exchanger of the outdoor unit, operatethe fan with Mode 1. (Except defrost operation)

• The fan speedcorresponding tothe highest modevaries with Toncapacity of theoutdoor unit

• This control maycause the airconditioner to befan stop.

– 62 –


3 Capacitycontrol

1)The compressors of the header and follower units are controlled on the basis ofcapacity demand issued by indoor controllers.

2)The two or three compressors featured in an outdoor unit operate on a rotationalbasis, so that, every time they come to a stop, their order of startup changes.

3)Where two follower units are connected, every time the system goes thermo OFFor all the compressors featured in the follower units come to a stop, the prioritystartup order of the follower units changes, as they are also subject to rotationaloperation.

• Minimum rps ofthe compressor is24 rps.

4 Oil leveldetectioncontrol

1) Judgment as to whether an optimum amount of oil is present in the compressorcases is made on the basis of the temperature readings of sensors TK1 to TK5.This control function is performed by the header unit and each follower unitindividually.

2) In concrete terms, judgment is based on the relationship between the temperaturemeasurements provided by TK1, TK2 or TK3, on the one hand, and those providedby TK4 or TK5, on the other. If there is depletion, oil equalization control takes over.

3)This control function is performed whenever at least one compressor is inoperation.

• Oil level detectiontakes placeregardless of thenumber ofcompressors,whether it be one,two or three.

• Rough guide foroil level judgment1) If TK1 - TK4 ≥

57.2°F (14°C),oil level ofcompressor 1is optimum.

2) If TK2 - TK4 ≥57.2°F (14°C),oil level ofcompressor 2is optimum.

3) If TK3 - TK4 ≥57.2°F (14°C),oil level ofcompressor 3is optimum.

(TD2)

(SV2)(SV3D)

(TK2)

(SV3B)

(TK1)

(SV3A)

Check valve

Check valve

(TD1)

(TK4)

(SV3E)

(TK5)

(SV41)

(SV42)

Oil header

(TD3)

(SV43)

(TK3)

(SV3F)

(SV3C)

SV

SV

SV SVSV

SV

SV

SV

SV

SV

OFF

OFF

OFF OFFOFF

OFFOFF

ONON

Oil separator

HighpressureSW

Highpressure

SW

HighpressureSW

Compressor1

(inverter)

Compressor2

(inverter)

Compressor3

(inverter)

Balance pipePacked valve

– 63 –


5 Oil equationcontrol

This control function is aimed at preventing compressors from running out of oil byevening out the oil supply to outdoor units, and is basically performed by opening/closing solenoid valves SV3A, SV3B, SV3C, SV3D, and SV3F. There are three controlpatterns as described below. (For a schematic diagram of oil equalization control, see4. Oil level detection control in the previous page.)1. Preparatory control

If the oil level judgment result in the memory continues to be “low” for 30 seconds,SV3B is turned on, with SV3D turned on and off intermittently.

2. Oil equation controlThis control function is performed to transfer oil to the outdoor unit whose oil levelis low from other outdoor units. It takes place whenever the header unit registers alow oil level result while at least one of its compressors is turned on or at least oneof the follower units issues an oil level equation request.This control function does not apply to a header unit-only system (no follower unitsconnected).

3. Oil depletion protection controlThis control function is performed if oil equation control fails to achieve an optimum oillevel. In concrete terms, if a low oil level situation continues for 30 minutes, the unit isbrought to a protective shutdown, followed by a restart 2 minutes and 30 seconds later.If protective shutdown is repeated three times, the error is confirmed as final.(There will be no more restarts.) The error code is “H07”.

• Oil accumulatedin the oilseparator isreturned to thecompressor.

• This is normal oilequalizationcontrol.

• This protectivecontrol isperformed when aprolonged low oillevel is detected.

6 Refrigerant/oil recoverycontrol

1. Cooling oil (refrigerant) recovery controlPerformed during all cooling or mainly cooling operation, this control function aimsto: periodically collect any refrigerating oil condensate that has built up in inter-unitgas pipes and indoor units and return it to outdoor units when the compressoroperation command is inadequate; and prevent the accumulation of refrigerant inoutdoor heat exchangers while cooling operation is in progress under low outsideair temperature conditions.It is managed by the header outdoor unit.1)Control commencement conditions

• When cooling operation has continued for at least 2 hours• When cooling operation has started (compressors have just been turned on,

though this does not always happen depending on outside air temperatureconditions).

2)Control details• All compressors currently in operation are operated at the minimum speed,

with those currently not in operation turned on.• Indoor units are set to the cooling oil (refrigerant) recovery control mode, with

their indoor PMVs opened to a certain degree.• Compressors are operated at the target speed.• After recovery control is performed for a specified period of time, it is

terminated, and normal cooling operation resumes.2. Heating refrigerant (oil) recovery control

Performed during all heating or mainly heating operation, this control function aimsto recover any liquid refrigerant trapped inside indoor units that have been turnedoff. It also serves the additional purposes of recovering indoor/outdoor refrigerantafter defrosting and recovering oil present in outdoor heat exchangers duringheating overload operation.This control function is managed by the header outdoor unit.1)Control commencement conditions

• When heating operation has started (compressors have just been turned on)• When heating takes over upon completion of defrosting• When heating operation has continued for 60 minutes

2)Control details• All compressors currently in operation are operated at the minimum speed,

with those currently not in operation turned on.• Indoor units are set to the heating refrigerant (oil) recovery control mode, with

their indoor PMVs opened to a certain degree.• Compressors are operated at the target speed.• Upon completion of refrigerant recovery for all the indoor units, normal cooling

operation resumes.3. Cooling oil recovery control at mainly operation

This control is provided to recover the refrigerator oil which stagnates in the low-pressuregas inter-unit piping at simultaneous operation (regardless of cooling or heating).1) Control condition (Representative)

• When integrating time of compressor ON reached to 95 minutes duringsimultaneous operation

2)Control contentsWhen the conditions are satisfied, set cooling operation to heating indoor unit temporarily(stop the indoor fan) and then recover oil for 2 minutes 30 seconds to max. 10 minutes.The cooling indoor unit continues operation.

• Cooling oilrecovery controltakes placeapproximatelyevery 2 hours.

• Control durationis about 2 to 5minutes, though itvaries accordingto the operatingconditions of thesystem.

• Heating oilrecovery controltakes placeapproximatelyevery hour.

• Control durationis about 2 to 10minutes, though itvaries accordingto loadingconditions.

• Compressorrotational speedvaries with controlconditions, indoorunit capacity, andoutdoor unitspecification.

– 64 –


7 Defrostingcontrol(reversedefrostingmethod)

1. Defrosting commencement conditions• During heating operation, the cumulative duration of operation in which TE1

sensor temperature falls below frost formation temperature is measured, andwhen this reaches 55 minutes, defrosting control is introduced. (Just afterstartup or upon changeover from cooling to heating, the target cumulativeduration is 25 minutes.)* If the outdoor units are a combination of different models, all the units begin

engaging in defrosting control as soon as one of them satisfies defrostingcommencement conditions.

• Frost formationtemperature is30°F (–1°C).

• If the outdoorunits are acombination ofdifferent models,defrostingoperation, oncestarted, cannotbe manuallyterminated forabout 2 minutes.

• To protect therefrigerating cyclecircuit, the fanmode may becontrolled duringdefrosting.

• During defrostingcontrol,compressors arecontrolled so thattheir speeds donot exceed 70rps.

• During standbyoperation,compressorspeed is in the24-33.5 rpsrange.(It varies fromoutdoor unit tooutdoor unit.)

2. Details of defrosting control1)All compressors currently in operation are operated at the minimum speed.2)When a specified amount of time passes from the time the compressors reached

the minimum speed, the outdoor fans are turned off by closing the 4-way valves.3)All compressors currently not in operation are turned on and operated at the

target rotational speed for defrosting control.

3. Defrosting termination conditions• Defrosting termination conditions are met when the TE1 temperature sensor

measurement reaches a specified value (roughly 53.6°F (12°C)) a certain periodof time after the commencement of defrosting control. In that event, defrostingtermination control takes over.* If the outdoor units are a combination of different models, defrosting

termination control commences when all the units satisfy the defrostingtermination conditions.As long as one or more outdoor units are yet to satisfy the defrostingtermination conditions, those that have engage in standby operation.

4. Details of defrosting termination control1)Compressors are operated at the standby operation speed.2)When a specified amount of time passes, the 4-way valves are opened.3) Indoor heating refrigerant recovery control is performed.For control details, see “ 6. Refrigerant/oil recovery control”.

– 65 –

Control pointsfor Pd

pressureP1, P2

Heating Cooling

(Unit: psi (MPa))

Header unit compressors Header unit compressors Header unit compressors

OFF OFF ON

P1 P2 P1 P2 P1 P2

189 (1.3) 160 (1.1)Header unit 189 (1.3) 160 (1.1) — —

189 (1.3) 160 (1.1)Follower unit 189 (1.3) 160 (1.1) 73 (0.5) 58 (0.4)


8 Release valvecontrol

1. SV2 gas balance controlThis control function is aimed at achieving gas balance by opening SV2 whilecompressors are turned off so as to reduce their startup load the next time theyare turned on. It is individually performed by the header outdoor unit and eachfollower outdoor unit.1)Control conditions

• In cooling, compressors have been turned off.• In heating, the header unit has been shut down.

2)Control details• The control point is changed according to ΔP (Pd pressure - Ps pressure)

registered just before the compressors were turned off.• When ΔP ≥ P1, SV2 is opened. When this results in ΔP < P2, SV2 is closed.• When ΔP < P1, SV2 is closed.

2. SV2 high pressure release controlThis control function is aimed at mitigating pressure rise while a compressor is inoperation at low speeds.1)Control conditions

• In case of all heating, all cooling, mainly heating or mainly cooling is operating• In case that a header unit singly operates a compressor

2)Control details• When Pd pressure becomes 493 psi (3.4 MPa), SV2 is opened.• When Pd pressure becomes 406 psi (2.8 MPa), SV2 is closed.

3)Termination conditions• Shutdown, thermo OFF, defrosting operation.• The number of header unit compressors in operation increases to two or more.• At least one follower unit compressor is turned on.

3. SV2 low pressure release controlThis control function is aimed at preventing a rapid fall in pressure during transientoperation. It is individually performed by the header outdoor unit and each followeroutdoor unit.The control is always provided except during periods of stoppage or thermo OFF.1)Control details

• When Ps pressure becomes ≤ 23 psi (0.16) MPa, SV2 is opened.• When Ps pressure becomes > 29 psi (0.20) MPa, SV2 is closed.

4. SV41, 42, 43 low pressure release controlThis control function is aimed at providing low pressure protection, and isindividually performed by the header unit and each follower unit.The control takes place during defrost operation, heating operation, mainly heating,mainly cooling and all cooling operation.1)Control details (heating)

When Ps pressure becomes 15 psi (0.1 MPa), SV41, 42 and 43 are opened;when Ps pressure becomes 22 psi (0.15 MPa), SV41, 42 and 43 are closed.

2)Control details (cooling)When Ps pressure and Pd pressure become 20 psi (0.14 MPa) and 247 psi(1.7 MPa), respectively, SV41 and 42 are opened; when Ps pressure and Pdpressure become 28 psi (0.19 MPa) and 319 psi (2.2 MPa), respectively, SV41and 42 are closed.

5. SV6 valve clean bypass controlThis control is provided for controlling liquid refrigerant bypass to control dischargetemperature-up or temperature inside of the compressor. It works during allcooling, all heating, mainly cooling, mainly heating, mainly heating and defrostoperation.1)Control contents (All cooling)

When TD temperature ≥ 203°F (95°C) and compression ratio ≥ 3.0, turn SV6 toON, and when TD temperature ≤ 181.4°F (83°C) or compression ratio ≥ 2.0, turnSV6 to OFF.

2)Control contents (Other operation)When TD temperature ≥ 203°F (95°C) and compression ratio ≥ 4.2, turn SV6 toON, and when TD temperature ≤ 181.4°F (83°C) or compression ratio≥ 3.2, turnSV6 to OFF.

– 66 –


9 High pressurereleasecompressorshutdowncontrol

This control function is aimed at automatically shutting down a compressor in anoutdoor unit depending on Pd pressure. It is individually performed by the headerunit and each follower unit.

1)Control details• Compressors are shut down when Pd pressure reaches or exceeds P0.• The compressor restart prevention timer (2 minutes 30 seconds) is set, and

the control terminated.

• When Pd ≥ P0 =500 psi (3.45 MPa),compressor No. 2 orNo. 3 (the last one ofthree compressors interms of startuporder in a threecompressorconfiguration) is shutdown.

• When Pd ≥ P0 =508 psi (3.5 MPa),compressor No. 1(the first compressorin terms of startuporder) is shut down.

10 Case heatercontrol

There are two types of case heaters: a compressor case heater and anaccumulator case heater. This control function is aimed at preventing theaccumulation of refrigerant in those cases, and is performed by all outdoor units.If the power supply has not been turned on for a specified period before apostinstallation test run, compressor failure may occur. Similarly, when startingcompressors after a long period of no power supply, it is recommended that thepower supply be turned on for a while before operation is resumed, just like a post-installation test run.This control function is sometimes used alongside an electrical charging of thecompressor motor windings. In this case, a charging sound may be heard, but thisis normal.

1)Control details• The heaters are turned on while the compressors are turned off.• The heaters are turned off when To sensor temperature becomes ≥ 82.4°F

(28°C), and are turned back on when To sensor temperature becomes ≤77°F (25°C).

• When the compressors are turned on, the heaters are kept on for 10minutes.

– 67 –


11 A3-IPDUcontrol

IPDU controls inverter compressors by issuing commands relating to compressorspeeds, speed increases/decreases, and current release control values via theinterface P.C. board.The main control functions of the IPDU P.C. board are described below.1. Current release control

To prevent inverter input current from exceeding the specified value, outputfrequency is controlled with AC input current as detected by T02 mounted on thecontrol P.C. board.

• A3-IPDU1, 2 and3 are eachprovided with aTH sensor.

Zone C

Zone B

Zone A

Zone DI1

I2

Current

Zone A:Compressors are operated normally.Zone D:The current operating frequency is maintained.Zone B:Operating frequency is lowered.Zone C:The lowering of operating frequency is halted

to maintain the current frequency.

Current control values for various outdoor units are shown below.

Outdoor unitTon capacity

FT9UL (208/230V) FT6UL (460V)

I1 I2 I1 I2

14.510 14 7.1 6.6

148 13.5 6.7 6.2

13.96 13.4 6.6 6.1

2. Heat sink temperature detection control1)This control function is aimed at protecting IGBT from overheating via a

thermistor (TH sensor) mounted in the compressor drive module (Q201) of A3-IPDU.

2)When TH ≥ 185°F (85°C) is detected, the fan operation mode is raised by onestep, followed by a series of additional step-ups right up to the highest mode at arate of one step/5 seconds.

3) After step 2), the normal fan mode is restored when TH falls to < 176°F (80°C).4)When TH ≥ 221°F (105°C), compressors are shut down.5)Compressors are restarted 2 minutes and 30 seconds later, with an error count

of 1 recorded. If this is repeated four times (error count reaches 4), the error isconfirmed as final. The error [P07] is displayed. (There will be no more restarts.)* Possible causes of the confirmed error include a heat buildup in the outdoor

unit, fan abnormality, blockage of the cooling duct, and IPDU P.C. board fault.* The TH temperature used in this control function is the highest registered by

A3-IPDU1, A3-IPDU2, and A3-IPDU3.3. Overcurrent protection control

1)When the overcurrent protection circuit on an IPDU P.C. board detects anabnormal current, the compressor is shut down.

2)The compressor is restarted 2 minutes and 30 seconds later, with an error countof 1 recorded. If the compressor successfully operates for at least 10 minutesafter a restart, the error count is cleared.

3) If the error count reaches 8, the error is confirmed as final.4. High pressure SW control

1)When the high pressure SW of an inverter compressor is activated, thecompressor is shut down with an error count of 1 recorded.

2)The compressor is restarted 2 minutes 30 seconds later, and, if it successfullyoperates for at least 10 minutes, the error count is cleared.

3) If the error count reaches 4, the error is confirmed as final. The error “P04” isdisplayed.

• Connected to A3-IPDU, the high-pressure SW isnormally closed.

– 68 –

<Other points to note>

1 Cooling operation under low outside temperature conditions1) If pressure falls to extremely low levels, indoor units may be shut down via freeze prevention control

based on the indoor TC sensor.

2) If pressure falls to extremely low levels, frequency may be reduced via cooling capacity control.

3) When the discharge temperature sensor reading falls below 140°F (60°C), the frequency may beincreased above the level called for by the commandreceived from the indoor unit.

2 PMV (Pulse Motor Valve)1) When the power is turned on, PMVs generate a tapping sound as they are initialized. If this sound is not

heard, there is a possibility of faulty PMV operation. However, in a noisy environment, it may simply bedrowned out by ambient noise.

2) Do not separate the actuator (head section) from any PMV during operation. It may result in aninaccurate opening.

3) When transporting (relocating) the set, do not, under any circumstances, keep the actuator separated. Itmay damage the valve by causing it to close and exposing it to pressure from sealed liquid.

4) When reattaching the actuator after its removal, push it in firmly until a click sound is heard. Then, turnthe power off and back on again.

<Schematic diagram for oil equation control>

SV41SV3C

Check joint(Liquid)

HPSW

Low pressuresensor

TS2

TL


AccumulatorSV2

SV3D

Liquidtank SV43

SV6

Oilseparator

SV5

SV42SV41 SV42

Accumulator

Lowpressure

TS2

FP

Oil header

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV3C

SV

SV

SVSV

SV

SV

SV SV

SV

SV

SV

SV

FP

SV

SV

TS1

PMV1

Unittransferring oil

TE1

PMV2

PMV4

TE2

TO

SV11

Header unit (MMY-MAP0964FT∗) Follower unit (MMY-MAP0724FT∗)

SV3B

SV3A

TD1

TK4

SV3ETK5

TD3HPSW

TK3

SV3F

Comp.1

TD2

HPSW

TK2TK1

HPSW

FMFM

TS1

PMV1

4-wayvalve

TE1

PMV2

PMV4

TE2

TO

SV11

TL


SV2

SV3D

Liquid tank

SV6

Oilseparator

SV5

TD1

TK4

SV3ETK5

TD2

TK2TK1

HPSW

SV3A

SV3B

Balance pipe

Liquid pipe

Dischage gas pipe

Suction Gas pipe

SV

SV1

SV

SV1

FP FP

4-wayvalve

Comp.2

Comp.3

Comp.2

Comp.1

Unitreceiving oil

– 69 –

7. APPLIED CONTROL AND FUNCTION7-1. Applied Control for Outdoor UnitThe outdoor fan high static pressure support functions are made available by setting relevant switchesprovided on the interface P.C. board of the outdoor unit.

7-2. Outdoor Fan High Static Pressure ShiftPurpose/characteristicsThis function is used when connecting a duct to the discharge port of an outdoor unit (as part of, for example,unit installation on the floor by floor installation.)

SetupTurn ON the DIP switch [SW10, Bit 2] provided on the interface P.C. board of the outdoor unit.This function must be enabled with every discharge duct connected outdoor unit for both of the header andfollower units.

SpecificationIncrease the speed of the propeller fan units on the outdoor fan to allow the installation of a duct with amaximum external static pressure not greater than specified in the table below. If a discharge duct with aresistance greater than 0.06 InWG (15 Pa) is to be used, enable this function. The maximum external staticpressures of base units are shown below (Table 1). In the case of combined use of multiple outdoor units, setall the units to the same maximum external static pressure as the one with the lowest maximum external staticpressure (see table2).

Table 1: Maximum External Static Pressures of Base Outdoor Units

Table 2: Maximum External Static Pressures for Combined Use of Base Units(1) Standard models

Model MMY- MAP0724FT∗ MAP0964FT∗ MAP1204FT∗Maximum external static pressure 0.2 lnGW (50 Pa) 0.16 lnGW (40 Pa) 0.16 lnGW (40 Pa)

(*) Outdoor unit air flow (CFM)

(*) Calculate duct resistance from outdoor unit air flow.

5120 7060 7620

Combinedhorsepower output

ModelMMY-

Combination of outdoor units

Unit 1

MAP0724FT∗MAP0964FT∗MAP1204FT∗MAP0724FT∗MAP0964FT∗MAP0964FT∗MAP1204FT∗MAP1204FT∗

MAP0724FT∗MAP0964FT∗MAP1204FT∗AP1444FT∗AP1684FT∗AP1924FT∗AP2164FT∗AP2404FT∗

6 Ton8 Ton10 Ton12 Ton14 Ton16 Ton18 Ton20 Ton

———

MAP0724FT∗MAP0724FT∗MAP0964FT∗MAP0964FT∗MAP1204FT∗

0.2 (50)0.16 (40)0.16 (40)0.2 (50)

0.16 (40)0.16 (40)0.16 (40)0.16 (40)

Unit 2

Maximum externalstatic pressure

lnGW (Pa)

– 70 –

7-3. Applied Control Using Optional Board for Outdoor UnitOptional control P.C. boards provide access to a range of functions as listed below.

No. Function

Outdoor unitfor controlP.C. boardconnection

Control P.C. board to be used Outdoor unit interface P.C. board setting*

—Header unit1

Power peak-cut Control (Standard) — CN513(blue) SW07 1 —

—Header unitPower peak-cut Control (For oneinput function) — CN513(blue) SW07 1 J16

—Header unit6

Operation Mode Selection Control — CN510(white) — — —

—Header unitOperation Mode Selection Control(forced choice) — CN510(white) — — J01

—Header unit2 Power peak-cut Control (EnhancedFunctions) — CN513(blue) SW07 1.2 —

—Header unit5 Night operation (sound reduction)Control — CN508(red) — — —

——Compressor Operation Output8 Individualoutdoor unit CN514(green) — — —

—Header unit3 Snowfall Fan Control — CN509(black) — — —

——Header unit7 Error / Operation output CN511(green) — — —

——Header unit9 Operating Rate Output CN514(green) SW16 1 —

—Header unit4 External master ON / OFF Control — CN512(blue) — — —

PCDM4UL PCMO4UL PCIN4UL Connector No. DIP SW No. Bit Jumper to beremoved

Connector layout

DIP switch layout

Interface P.C. Board

Jumper wire layout

Layout of Outdoor Unit Interface P.C. Board* DIP switch settings and jumper wire statuses vary from function to function.

– 71 –

7-3-1. Power peak-cut Control (Standard): TCB-PCDM4UL

PJ17CN513SW07

TB1

[ON]

[OFF]

TB2COM

ONCOMOFFBit 2 OFF

L1

SW1

SW2SW2

SW1ONOFF

1 2 3 4

Connection cable

Locally procured

[OPERATION]

L1: Display lamp suring power peak cut control

Optional PCB

Header outdoor unit

Outdoor unit interface PCB

Displayrelay

Powersupply

Shieldwire

Shieldwire

For SW1 and SW2, be sure to provide no-voltage contacts for each terminal. The input signals of SW1 and SW2 may be pulse input (100 msec or more) or continuous make.

Interface P.C. board of header outdoor unit

SW07 Bit 1 ONSW07 Bit 1 OFFPower peak-cut control P.C.

board

Power peak-cut control ONsignal received

SW1

ON OFF 0% (forced stop) 60% capacity (upper limit regulated)ON

Power peak-cut control OFFsignal received OFF ON 100% (normal operation) 100% (normal operation)OFF

SW2 L1

PJ17

TB1

TB2COM

ONCOMOFF

CN513SW07

Bit 2 ON

L1

SW1ONOFF

1 2 3 4

[ON]

[OFF]

Connection cable

Locally procured

[OPERATION]


Optional PCB

Header outdoor unit

J16 CutShield wire

Shield wire


Displayrelay

Powersupply

OperationAn external power peak-cut control signal limits the peak capacity of the outdoor unit.L1: Power peak-cut control indication lampSW1: Power peak-cut control ON switch (ON as long as target power peak-cut control has been reached orexceeded, normally OFF)*1SW2: Power peak-cut control OFF switch (OFF as long as target power peak-cut control has not been reachedor exceeded, normally ON)*1*1 The inputs of SW1 and SW2 can be either pulse (100 msec or wider) or step signals.

Do not turn on SW1 and SW2 simultaneously.* Be sure to provide a contact for each terminal.Power peak-cut control settings

Two-core cable supportSMMS-i series allows ON/OFF power peak-cut control to be implemented using a power peak-cut control ONinput (SW1) alone, provided that the J16 jumper wire on the interface P.C. board of the header outdoor unit hasbeen removed.

– 72 –

<SW07 Bit 2 OFF (two-step control)>Power peak-cut control is enabled as long as SW1, as shown on the wiring diagram, is ON (continuously).

<Electrical Rating>208 to 230 VAC, 10 mA or more, 1 A or less24 VDC, 10 mA or more, 1 A or less (non-conductive load)

<Electrical Rating>208 to 230 VAC, 10 mA or more, 1 A or less24 VDC, 10 mA or more, 1 A or less (non-conductive load)

SW07 Bit 1InputSW1

Jumper wireJ16

Cut

Indicator relay

Bit 1 ONBit 1 OFF (L1)

100% (normal operation)100% (normal operation)OFF OFF

Approx. 60% (upper limit regulated)0% (forced stop)ON ON

PJ17

TB1

[ON]

[OFF]

TB2COM

ONCOMOFF

CN513SW07

Bit 2 ON

L1

SW1ONOFF

1 2 3 4 SW2

Connection cable

Locally procured

[OPERATION]


Optional PCB

Header outdoor unit

Shield wire

Shield wire


Displayrelay

Powersupply

For SW1 and SW2, be sure to provide no-voltage contacts for each terminal.

SW1 SW2 OFF ON L1

OFF OFF 100% (normal operation) 100% (normal operation) OFF

ON OFF 80% (upper limit regulated) 85% (upper limit regulated) ON

OFF ON 60% (upper limit regulated) 75% (upper limit regulated) ON

ON ON 0% (forced stop) 60% (upper limit regulated) ON

I/F SW07 Bit 1

Peak capacityExternal power peak-cut controlsignals

Indication lamp

Note 1: Specifications of display relay contact• The terminal for display output ([Operation] terminal) must satisfy the following electrical rating.

When connecting a conductive load (e.g. relay coil) to the display relay load, insert a surge killer CR (for an ACpower supply) or a diode for preventing back electromotive force (for a DC power supply) on the bypass circuit.The optional P.C. board should be connected to the header outdoor unit (U1).

7-3-2. Power peak-cut Control (Extended) : TCB-PCDM4UL

OperationAn external power peak-cut control signal limits the peak capacity of the outdoor unit.L1: Power peak-cut control indication lampSW1: Power peak-cut control ON switch*1SW2: Power peak-cut control OFF switch*1*1 The inputs of SW1 and SW2 can be either pulse (100 msec or wider) or step signals.* Be sure to provide a contact for each terminal.Extended power peak-cut control settingsSpecifications of display relay contact

Note 1: Specifications of display relay contact• The terminal for display output ([Operation] terminal) must satisfy the following electrical rating.

When connecting a conductive load (e.g. relay coil) to the display relay load, insert a surge killer CR (for an ACpower supply) or a diode for preventing back electromotive force (for a DC power supply) on the bypass circuit.The optional P.C. board should be connected to the header outdoor unit (U1).

– 73 –

7-3-3. Snowfall Fan Control : TCB-PCMO4UL

SW1: Snowfall detection switch (snowfall sensor)

CN509 PJ17

TB1

SW1

COM

HEAT

COOL

Locally procured

Optional PCBSnowfall sensor

Header outdoor unit

Connectioncable


Shieldwire

OperationAn external snowfall signal turns on the outdoor unit fan.

Terminal Input signal Operation

COOL(SW1)

Snowfall fan control(Turns on outdoor unit fan)

Normal operation(Cancels control)

ON

OFF

ON

OFF

The input signal is recognized during its rising/falling phase.(After reaching the top/bottom of the rising/falling edge, the signal must remain there for at least 100 ms.)The optional P.C. board should be connected to the header outdoor unit (U1).

7-3-4. External master ON/OFF Control : TCB-PCMO4UL

SW1: Operation input switchSW2: Stop input switch

CN512 PJ17

TB1

SW1

SW2

COM

HEAT

COOL

Locally procured

Optional PCB

Header outdoor unit


Connectioncable

Shieldwire

OperationThe system is started/stopped from the outdoor unit.


COOL(SW1)

Turns on all indoor units

HEAT(SW2)

Turns off all indoor units

ON

OFF

ON

OFF

The input signal is recognized during its falling phase. (After reaching the bottom of the falling edge, the signalmust remain there for at least 100 ms.)

CAUTION(1) Do not turn on the COOL (SW1) and HEAT (SW2) terminals simultaneously.(2) Be sure to provide a contact for each terminal.

External signal: No-voltage pulse contact

The optional P.C. board should be connected to the header outdoor unit (U1).

– 74 –

7-3-5. Night operation (sound reduction) Control : TCB-PCMO4UL

OperationThis function decreases noise at night or other times as necessary.

The input signal is recognized during its rising/falling phase.(After reaching the top/bottom of the rising/falling edge, the signal must remain there for at least 100 ms.)The optional P.C. board should be connected to the header outdoor unit (U1).

The system’s capacity is reduced during low-noise operation.The table below provides a rough guide to this capacity reduction.

* Position of noise measuring device: 3.3 ft (1 m) from the front face of the set and 4.9 ft (1.5 m) above ground(Measured in anechoic room)

SW1: Night time signal switch

CN508 PJ17

TB1

SW1

COM

HEAT

COOL

Locally procured

Optional PCB

Header outdoor unit


Connectioncable

Shieldwire


COOL(SW1)

Night time control

Normal operation

ON

OFF

ON

OFF

Outdoor unit(base unit)

During low-noise mode*dB(A)

CapacityCooling Heating

approx. 85%50Model 072 type approx. 80%approx. 85%53Model 096 type approx. 85%approx. 80%53Model 120 type approx. 80% Relative to maximum capacity

– 75 –

7-3-6. Operation Mode Selection Control : TCB-PCMO4UL

SW1: Cooling mode specified input switchSW2: Heating mode specified input switch

CN510 PJ17

TB1

SW1

SW2

COM

HEAT

COOL

Locally procured

Optional PCB

Header outdoor unit

Shieldwire

Connectioncable


NOTE

SW1: COOL mode selection switchSW2: HEAT mode selection switch

Input signalOperation Remarks

COOL (SW1) HEAT (SW2)

ON OFFOnly cooling

operation allowed*

OFF ONOnly heating

operation allowed*

OFF OFF Normal operation

* The display “ (Operation mode selection control in progress)” appears on the remote controllerIndoor unit operation intervention functionThe statuses of indoor units operating in a mode different from the selected operation mode can be changedby changing the status of a jumper wire (J01) provided on the interface P.C. board of the header outdoor unit.

Jumper wire Description of intervention

J01 connected (factory default)

All indoor units operating in a mode different from the selected operation mode (prohibited-mode indoor units) become non-priority units (thermostat OFF).Prohibited-mode indoor units

J01 cut

The selected operation mode is imposed on all indoor units operating in a different mode.

Operation mode Operation statusRemote controller

display

COOL Fan operation at air flow rate set via remote controller “ ” operation ready

HEAT Fan operation at extremely low air flow rate

FANFan operation at air flow rate set via remote controller as normal

Mode selected at P.C. board Remote controller operation / display

NormalAll modes (COOL, DRY, HEAT and FAN) available

COOL Only COOL, DRY and FAN available “ operation mode control” (turned on during remote controller operation)HEAT Only HEAT and FAN available


– 76 –

<Electrical Rating>208-230 VAC, 10 mA or more, 1A or less24 VDC, 10 mA or more, 1 A or less (non-conductive load)

7-3-7. Error/Operation Output : TCB-PCIN4UL

OperationIn-operation output: An in-operation indication signal is output as long as at least one indoor unit is in operationin the line.Error output: An error indication signal is output if an error occurs in at least one indoor/outdoor unit in the line.

Note 1: Output Relay (K1, K2, K3) Contact Specifications• Output terminals (OUTPUT1, 2, 3) must satisfy the following electrical rating.• When connecting a conductive load (e.g. relay coil) to loads K1, K2 and K3, insert a surge killer CR (for an AC

power supply) or a diode for preventing back electromotive force (for a DC power supply) on the bypass circuit.


OUTPUT1

CN511 PJ20 OUTPUT2

OUTPUT3

TB1 L1

L2

12

56

43

C1 PS

PS

K1

K2

1 2 3 4

ONOFF

SW16

Optional PCB

Locally procured

(See “NOTE”)

Header outdoor unit


Shieldwire

C1 Connector cable 1 (CN511)

CN511 Connector on Interface side (green)

K1,K2 Relays

L1 Error indication Lamp

L2 Operation indication Lamp

OUTPUT1 Error output

OUTPUT2 Operation output

PJ20 Connector on optional PCB side

TB1 Terminal block

– 77 –

7-3-8. Compressor Operation Output : TCB-PCIN4UL


When a compressor is in operation, a relay connected to the output terminal assigned to it is turned on(closed).When it is at rest, the relay is turned off (open).The output terminals are named OUTPUT1, OUTPUT2 and OUTPUT3 from left to right when facing the frontof the outdoor unit, as shown in the diagram.



OUTPUT1

CN514 PJ20 OUTPUT2

OUTPUT3

TB1

12

56

43

C2K1

K2

K3

1 2 3 4

ONOFF

SW16

CTR1

CTR2

CTR3

L1 PS

L2 PS

L3 PS

Optional PCB

Locally procured

(See “NOTE”)

Outdoor unit


Shieldwire

1 2 3

OUTPUT1 OUTPUT2 OUTPUT3

1 2

OUTPUT1 OUTPUT2

Model featuring three compressors

Model featuring two compressors

C2 Connection cable 2 (CN514)

CN514 Interface-side connector (green)

CTR1 Elapsed operation counter 1



K1,K2,K3 Relay

L1,L2,L3 Operation indication lamp

OUTPUT1 Compressor 1 in-operation output terminal



PJ20 Optional P.C. board-side connector

PS Power supply unit

TB1 Terminal block

– 78 –

7-3-9. Operating Rate Output : TCB-PCIN4UL


At the output terminals, a signal is present (relay closed) or absent (relay open) in various combinationsaccording to the system operation factor, as shown in the diagram.(The operation rate (FA) is the percentage ratio of the current output of the system to the maximum output (100%).)



OUTPUT1

CN514 PJ20 OUTPUT2

OUTPUT3

TB1

12

56

43

C2K1

K2

K3

1 2 3 4

ONOFF

SW16MONITOR

Optional PCB

Locally procured

(See “NOTE”)

Header outdoor unit


Shieldwire

Function SW16 OUTPUT1 OUTPUT2 OUTPUT3 Operation factor (FA)

System operation rate output

Bit 1: ONBit 2: OFF

off off off FA=0%

on off off 0%<FA<20%

off on off 20% FA<35%

on on off 35% FA<50%

off off on 50% FA<65%

on off on 65% FA<80%

off on on 80% FA<95%

on on on 95% FA

1

ONOFF

2 3 4

off = Relay openon = Relay closed

* Connect the optional P.C. board to the header outdoor unit.

C2 Connection cable 2 (CN514)

CN514 Interface-side connector (green)

MONITOR Monitoring device

OUTPUT1 Output terminal for each function



PJ20 Connector on optional PCB side

TB1 Terminal block

– 79 –

8. TEST OPERATION8-1. Procedure and Summary of Test OperationA test operation is executed with the following procedure. When problems or an error occurs at any step,remove the causes of the problem or error referring to “9 TROUBLESHOOTING.”

Checks before test operation

Check that the main power supply is turned on.

Check basic items, mainly the installation work.Be sure to enter the check results in checklist 1 and 2.

This check is done after the power has been turned on.Check that the refrigerant circuit system is turned on normally.

Set up the addresses. Start the address setup in the outdoor/indoor units.Note: Operation does not start simply by powering-on.

Test operation

END

Carry out a test operation. Check air blowing and cooling/heating operation in the indoor unit.

– 80 –

8-2. Check Items before Test Operation (before poweringon)Prior to the test operation, check the following items to verify there are no problems with the installation work.

(1) In the case that a central control system is not connected:

U1 U2

U1 U2 U1 U2 U1 U2 U1 U2

U5 U6

U3 U4

U1 U2 U5 U6

U3 U4

A B A B A B A B

(1) (2) (4) (3)

(5)(6)

Outdoor unit

Indoor unit

Remotecontroller

Remotecontroller

Remotecontroller

Header unit (A) Follower unit (B)

Main check items Check

(1)Are the indoor and outdoor communication lines of the header unit connected to the U1/U2 terminals?

(2) Is the relay connector between the U1/U2 terminal and the U3/U4 terminal removed? (Set up at shipment from the factory)

(3) Is the communication line between outdoor units connected to the U5/U6 terminal?

(4) Is the terminal resistance (SW30-bit 2) on the interface PC board of the header unit turned on? (Set up at shipment from the factory)

(5) Is the end terminal of the shield wire open?

NOTE

The figure above does not show all the electric wires.For details, refer to the installation manuals for the outdoor unit, indoor unit, remote controller, or optionaldevices.

– 81 –

(2) In the case that a central control system is connected (before address setup)

U1 U2

U1 U2 U1 U2 U1 U2 U1 U2

U5 U6

U3 U4

U1 U2 U5 U6

U3 U4

A B A B A B A B

(1)

(8)

(4) (2)

(7) (6)

(5) (3)Central remote controller

U1 U2

U3 U4

U3 U4

U1 U2 U5 U6

Otherrefrigerant line

To indoor unit

Outdoor unit

Indoor unit

Header unit (A) Follower unit (B)

Remotecontroller

Remotecontroller

Remotecontroller

To other refrigerant line

Main check items Check(1) Are the indoor and outdoor communication lines of the header unit connected to the U1/U2 terminals?

(3) Is the communication line between outdoor units connected to the U5/U6 terminal?

(6) Is the end terminal of the shield wire open?

(2) Is the relay connector between the U1/U2 terminal and the U3/U4 terminal removed? (Set up at shipment from the factory) (Keep the relay connector disconnected before address setup.)

(4) Is the communication line of the central control system connected to the header unit U3/U4 terminals of each refrigerant line? (The communication line of the central control system may be connected to the communication lines of the indoor/outdoor communication lines.)

(7) When the refrigerant line and the central control system of the DI-SDI series are connected: → Are Network adapter (TCB-PCNT31TLUL) correctly connected? → When the DI-SDI series operates with group, twin, or triple operation, are the adapters connected to the header unit of the indoor unit?

(5) Is the terminal resistance (SW30-bit 2) on the interface PC board of the header unit turned on? (Set up at shipment from the factory) * After address setup and test operation check, turn on the SW30-bit 2 of the header unit for the smallest line address, and turn off SW30-bit 2 of the header unit for other refrigerant lines. (See “8-4-3. Address Setup Procedure”)

NOTE


– 82 –

(3) Connection check of FS (Flow Selector) unit with indoor unit

CN01 CN02

CN81

Indoor unit

Remote Controller

L N

A B

U1 U2

A B

To Header unit U1/U2

Cooling/Heating FS unit

1

2

4

3

CN01 CN02

CN81

Indoor unit

Remote Controller

L N

A B

U1 U2

A B


CN01 CN02

CN81

Indoor unit

Remote Controller

L N

A B

U1 U2

A B


NOTE

The above figure does not described all the electric wiring. For details, refer to the Installation Manual of FS unit.

Main check items Check(1) Is the indoor/outdoor communication line connected to U1/U2 terminals of the header unit?

(2) Is the control wires connected of FS unit to the connector CN81?

(3) Is the power supply wires connected of FS unit to RS Faston terminal?

(4) In case of the indoor unit wish end-closed connector, Is power supply wire of FS unit connected to end-closed connector?

– 83 –

Checklist 1• Check that there are no problems with the installation work.

Is the capacity of the circuit breaker (Earth leakage breaker) appropriate?

Outdoor total capacity A Header unit (A) A Indoor unit A

Follower unit (B) A

Is the gauge of the power cable correct?

Header unit (A) AWG Indoor unit AWG

Follower unit (B) AWG

Is the control communication line correct?

Indoor-outdoor connection terminals (U1, U2)

Outdoor-outdoor connection terminals (U5, U6)

Central control system connection terminals (U3, U4)

Is the power of indoor units supplied collectively?

Is it grounded to earth?

Is the resistance sufficient? (10 MΩ or higher) MΩ or higher

Is the main power voltage sufficient? (within FT9: 208/230V ± 10%, FT6: 460V ± 10%) V

Is the diameter of connecting pipe correct?

Is the branch kit correct?

Is the water drain of the indoor unit arranged so that it flows without accumulation?

Is the heat insulation of pipes sufficient? (connecting pipes, branch kit)

Is there no short circuit of discharge air in the indoor/outdoor units?

After an airtightness test of the pipes, are vacuuming and adding of refrigerant executed?

Are the valves of all the outdoor units fully opened?

LiDischargegas side quid side Balance side

Header unit (A)

Follower unit (B)

Suctiongas side

– 84 –

Checklist 2• Check the additional amount of refrigerant.Calculate the additional amount of refrigerant from the additional amount of refrigerant (A) by the pipediameter on the liquid side, the pipe length to be connected, and the corrective amount of refrigerant (B)according to system capacity.

First, enter the total length for each liquid pipe diameter in the following table, and then calculate the additionalamount of refrigerant by pipe length.<(A) : Additional amount of refrigerant by pipe length>

Next, refer to the following table for the corrective amount of refrigerant (B) according to system capacity.<(B) : Adjustment amount of rifrigerant according to system capacity>

Lastly, add the additional amount of refrigerant by pipe length (A) to the Adjustment amount of accordingrefrigerant to system capacity (B).This is the final additional.<Additional amount of refrigerant>

Additionalrefrigerant charge

amount (lb)

Actual lengthof liquid pipe

Additional refrigerantcharge amountper liquid pipe 1 ft

Adjustment amount of refrigerantaccording to system capacity= × × 1.3 +

(A) (B)

Pipe diameter on theliquid side

Additional refrigerantamount/1ft

(lb)

Total pipe length oneach liquid side

(ft)

Additional mount of refrigerant pipediameter on each liquid side

(lb)Ø1/4"

Ø3/8"

Ø1/2"

Ø5/8"

Ø3/4"

0.017

0.037

0.071

0.108

0.168

×

×

×

×

×

=

=

=

=

=

totalAdditional amount of refrigerant by pipe length (A)

Outdoor unit capacity type Adjustment amount ofrefrigerant (lb)

Combined outdoor units


5.520.927.55.5

23.130.834.137.4


———

072 type072 type096 type096 type120 type

(A) : Additional amount of refrigerant by pipe length (lb)

(B) : Adjustment amount of refrigerant according to system capacity (lb)

(A) + (B) : Additional amount of refrigerant (lb)

– 85 –

8-3. Check at Main Power-onAfter turning on the main power of the indoor units and outdoor unit in the refrigerant line to conduct a testoperation, check the following items in each outdoor and indoor unit.(After turning on the main power, be sure to check in order: indoor unit → outdoor unit.)

<Check on the outdoor unit>(1) Check that all the rotary switches, SW01, SW02, and SW03, on the interface PC board of the header unit

are set to “1.”(2) If another check code is displayed on the 7-segment display [B], remove the cause of the problem referring

to Section, “9 TROUBLESHOOTING”.(3) Check that “L08” is displayed on the 7-segment display [B] on the interface PC board of the header unit.

(L08: Indoor address not set up)(If the address setup operation has already been completed during servicing, etc., the above check code isnot displayed, and “U1” is displayed on the 7-segment display [A].)

<Check on the indoor unit>(1) Display check on the remote controller (in the case of a wired remote controller)

Check that a frame, as shown in the following figure at left, is displayed on the LC display section of theremote controller.

If no frame is displayed, as shown in the above figure at right, the remote controller does not have a normalsupply of power; check the following items.• Check the power supply of the indoor unit.• Check the cabling between the indoor unit and the remote controller.• Check whether there is a cutoff of wire around the indoor control PC board or not, and check for

connection failures of the connectors.• Check for failure of the transformer for the indoor electrical control box.• Check for failure of the indoor control PC board.

Interface PC board

SW01 SW02 SW03

SW04

D600 D601 D602 D603 D604

SW15SW05

Push switches

Rotary switches

7-segment display [A]

7-segment display [B]

SET

TIME

TIMER SET

TESTFILTERRESET

TEMP.

CL

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

Normal status (power supplied and operation stopped)

Correct

SET

TIME

TIMER SET

TESTFILTERRESET

TEMP.

CL

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

When power is not supplied normally

Incorrect

– 86 –

8-4. Address SetupThis product requires address setup before operation.Follow this procedure for address setup.

8-4-1. Precautions

(1) Address setup is not performed simply by turning on the power supply.(2) For indoor units, address setup can be done either by “manual address setup” or “by automatic address setup”

Automatic address setup: Setup from SW15 on the interface PC board of the header unitManual address setup: Setup from the wired remote controller. (For details, refer to “8-4-3. Address SetupProcedure.”)

(3) Automatic setup usually takes about 5 minutes per line. In some cases, however, it may take up to 10 minutes.(4) It is unnecessary to operate the air conditioner to achieve address setup.

8-4-2. Address Setup and Check Procedure

Procedure1 Indoor unit power-on Turn on the power of the indoor unit for the refrigerant line for which the address is to be set up.2 Outdoor unit power-on Turn on the power of all the outdoor units for the refrigerant line for which the address is to be set up.

3 7-segment displaycheck

Check that “L08” is displayed on the 7-segment display [B] on the interface PC board of theheader unit in the system where the address is to be set up.

4

Address setup start Confirm the items in “8-4-3. Address Setup Procedure,” and then set up the address according tothe operation procedure.(Be careful to note that the setup operation may differ in group control and central control systems.)

Note: The address cannot be set up if switches are not operated.

Item Operation and check contents

5

Display check aftersetup

• After address setup, “U1” “ ” is displayed on the 7-segment display.• For follower outdoor units, “U2” to “U3” are displayed on the 7-segment display [A].• If an error code is displayed on the 7-segment display [B], remove the cause of the problem referring to “9 TROUBLESHOOTING.”

6

System informationcheck after setup

Using the 7-segment display function, check the system information of the scheduled system.(This check is executed on the interface PC board of the header unit.)

System capacity*1 [Nominal Ton] [Ton]1 2 3

SW01 SW02 SW03 [A] [B]Rotary switch setup 7-segment display

Number of connectedoutdoor units [ P][Number of units]1 3 3

Number of connectedindoor units

[Number ofconnected units]1 4 3

After the above checks, return rotary switches SW01, SW02, and SW03 to 1/1/1.

Interface PC board

SW01 SW02 SW03

SW04

D600 D601 D602 D603 D604

SW15SW05

Push switches

Rotary switches

7-segment display [A]


Outdoor unitcapacity type Nominal Tons


68

101214161820

*1 System capacity

– 87 –

8-4-3. Address Setup Procedure

Single refrigerant system: go to Address setting procedure 1Multipul refrigerant system with cetral control: go to Address setting procedure 2

Address setting procedure 1

1 Turn on indoor units first, and then turn on outdoor units.

2 About one minute after turning the power on, confirm that the 7-segment display on theinterface P.C. board of the header outdoor unit indicates U. 1. L08 (U. 1. flash) .

3 Push SW 15 to start the automatic address setting.(It may take up to 10 minutes (normally about 5 minutes) to complete one line’s setting.)

4 The 7-segment display indicates Auto 1 →→→→→ Auto 2 →→→→→ Auto 3 .After the indication, U. 1. - - - (U. 1. flash) starts flashing on the display.When the flashing stops and U. 1. - - - (U. 1. light) emain lit on the display, the setting iscomplete.

Interface P.C. board on the header outdoor unit

(Example) Without central controlsingle refrigerant system with central control

when controling 2 or morerefrigerant lines centrally

Address setting procedure To procedure 1 To procedure 2

System wiring diagram

Outdoor

Indoor Indoor Indoor Indoor

Outdoor Central remote

controller

Remote controller

Remote controller

Remote controller

Remote controller

Outdoor


Outdoor Central remote

controller

Remote controller

Remotecontroller

Remotecontroller

SW04 SW05 SW15

SW01 SW02 SW03

D600 D601 D602 D603 D604

3

52,4

U1 U2 U3 U4 U5 U6

TO

Relayconnector

INDOOR

UNIT

TOCENTRAL CONTROL

LER

TO OUTDOOR

UNIT

5 When using a central control, connect a relay connector between [U1, U2] and [U3, U4]terminals.

– 88 –

(Example) Controlling 2 or more refrigerant lines as a group

System wiring diagram

Outdoor


Outdoor

Remote controller

(Group control)

SW06 SW07 SW09 SW10

SW11 SW12 SW13 SW14

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

Line address switches on the outdoor interface PC board (O : switch on, × : switch off)

SW13 SW141

123456789

1011121314

××××××××××××××

×O

×O×O

×O×O×O

×O

××O

O

××O

O××O

O××

××××OO

O

O××××OO

××××××××O

OO

O

OO

2 3 4 1 2 3 4SW13 SW14

11516171819202122232425262728

××O

OO

OO

O

O

OOO

O

O

×O

×O×O×O

×O×O

×O

OO

××O

O××O

O××O

O

OO

××××O

O

O

O××××

O

O

××××××××OO

O

O

2 3 4 1 2 3 4

Not used for setup of line address (do not change setup.)

Lineaddress

Lineaddress

Address setting procedure 2

1 Set a system address for each system using SW 13 and 14 on the interface P.C. board onthe header outdoor unit of each system.(Factory default: Address 1)

NOTE

Be sure to set a unique address on each system. Do not use a same address as another system (refrigerantline) or DI/SDI series.

Interface P.C. board on the header outdoor unit

NOREQUIREMENTE

• When 2 or more refrigerant lines are controlled as a group, be sure to turn on all the indoor units in thegroup before setting addresses.

• If you set the unit addresses of each line separately, each line’s header indoor unit is set separately. In thatcase, the CODE No. “L03” (Indoor header unit overlap) is indicated as running starts. Change the groupaddress to make one unit the header unit using wired remote controller.

– 89 –

2 Be sure to disconnect the relay connectors between the [U1U2] and [U3U4] terminals on allthe header outdoor units that will be connected to the central control. (Factory default:disconnected)

3 Turn on indoor units first, and then turn on outdoor units.

4 About 1 minute after turning the power on, confirm that the 7-segment display on theinterface P.C. board of the header outdoor unit indicates U. 1. L08 (U. 1. flash) .

5 Push SW 15 to start the automatic address setting.(It may take up to 10 minutes (normally about 5 minutes) to complete one line’s setting.)

6 The 7-segment display indicates Auto 1 →→→→→ Auto 2 →→→→→ Auto 3 .After the indication, U. 1. - - - (U. 1. flash) starts flashing on the display.When the flashing stops and U. 1. - - - (U. 1. light) , remains lit on the display, the settingis complete.

7 Repeat steps 4 to 6 for other refrigerant lines.

8 After completing address setting of all systems, turn off dip switch 2 of SW30 on theinterface P.C. boards of all the header outdoor units connected to the same central control,except the unit that has the lowest address.(For unifying the termination of the wiring for the central control of indoor and outdoor units)

9 Connect the relay connectors between the [U1, U2] and [U3, U4] terminals of the headeroutdoor unit of each refrigerant line.

U1 U2 U3 U4 U5 U62

TOINDOOR

UNIT

TO CENTRAL CONTROL

LER

TO OUTDOOR

UNIT

U1 U2 U3 U4 U5 U6

9

TO INDOOR

UNIT

TOCENTRAL CONTROL

LER

TO OUTDOOR

UNIT

– 90 –

10 Set the central control address.(For the setting of the central control address, refer to the installation manuals of the central controldevices or “Manual address setup from the remote controller” in the next to the following page and after.

SW15

SW04

1 2

SW13

SW30

SW14 SW01 SW02 SW03

D600 D601 D602 D603 D604

SW05

7-segment display

Header unit interface P.C. board

SW30 bit 2 switch OFF* Except the smallest line address of

header unit

8

1 2

SW30SW30 bit switch ON* The smallest line adress of header unit

4, 6

5

– 91 –

*The items in bold font must be set manually.

Outdoor unit’s interface P.C. board Header unit Follower unit Header unit Follower unit Header unit Factory default

SW13, 14(Line (system) address) 1 (No setting

required) 2 (No setting required) 3 1

Dip switch 2 of SW30(Terminator of indoor/outdoor communication line and central control line)

ON (No setting required)

Set to OFF after setting addresses.

(No setting required)

Set to OFF after setting addresses.

ON

Relay connectorConnect after

setting addresses.

OpenConnect after

setting addresses.

OpenConnect after

setting addresses.

Open

Line (system) address 1 1 2 2 3

Indoor unit address 1 2 1 2 1

Group address 0 0 1 2 0

A

U1 U2

U3 U4 U3 U4 U3 U4 U3 U4 U3 U4

U5 U6 U1 U2 U5 U6 U1 U2 U5 U6 U1 U2 U5 U6 U1 U2

U1 U2 U1 U2 U1 U2 U1 U2 U1 U2

U5 U6

B A B A B A B A B

Central remote

controller

Relay connector

Relay connector

Relayconnector

Header unit Header unit Header unitFollower unitFollower unit

Remote controller

Remotecontroller

Remote controller

Remotecontroller

Individual Group

Indoor units (automatic setting)

Switch setting (setting example when controlling 2 or more refrigerant lines centrally)Outdoor units (setting manually)

CAUTION

Relay connector connectionNever connect relay connectors between the [U1, U2] and [U3, U4] terminals before completing addresssetting of all the refrigerant lines. Otherwise, the addresses cannot be set correctly.

– 92 –

Group address

Individual: 0000Header unit: 0001Follower unit: 0002

(Wiring example for 2 refrigerant lines)Line 1 Line 2

Line 1 Line 2

Outdoor

Indoor 1 Indoor 2Indoor 1

(Remote controller group control)

Indoor 2 Indoor 3

Indoor 1 Indoor 2Indoor 1 Indoor 2 Indoor 3

Line address Indoor address

111

Header

122

Follower Follower Follower Follower

132

212

222

Outdoor

OutdoorOutdoor

(Wiring during manual address setup)

Remotecontroller

Remotecontroller

Remotecontroller

Remotecontroller

Remotecontroller

Remotecontroller

Groupaddress

In the above example, where remote controllers are not yet wired, set the address manually after individually connecting the wired remote controller.

After address setup, return to the original wiring over remote controllers.

In cases of remote controller group control

Manual address setup from the remote controllerWith indoor wiring work completed and outdoor wiring work not done—in cases where indoor unit addresses aredecided in advance from the wired remote controller, or in cases where addresses are change after address setup.

1 Arrange one indoor unit and one remotecontroller set to 1 by 1.

2 Turn on the power.

3 Push the + + buttons simultaneously for4 seconds or more.LCD begins blinking.

(Refrigerant line address)

4 Using the buttons, set the DN code to 1212121212.

5 Using the buttons, set up the line address(match it with the line address on the interfacePC board of the header unit on the samerefrigerant line).

6 Push the button (OK when the display goeson).

(Indoor address)


8 Using the buttons, set up the indooraddress.(00010001000100010001 ~ 00400040004000400040)


(Group address)


11 Using the buttons, set Individual = 00000000000000000000,Header unit = 00010001000100010001, Follower unit = 00020002000200020002.


(Central control address)

13 Using the buttons, set DN code to 0303030303.

14 Using the buttons, set up the centralcontrol address.(00010001000100010001 ~ 00640064006400640064)

15 Push button. (OK when display goes on).

16 Push the button.Setup is finished (“Setting up” blinks; when “Setting up”goes off, operation is possible).

17 Return to the original wiring over remotecontrollers.

SET

TIME

TIMER SET

TESTFILTERRESET

TEMP.

CL

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

DN code(CODE No.)

Setdata

5, 8, 11, 146, 9, 12, 15

16

471013

3

– 93 –

NOTE

(1) When setting the line address from the remote controller, do not use addresses 29 and 30.Addresses 29 and 30 cannot be set up on the outdoor unit. If they are incorrectly used, the code “E04”(indoor/outdoor communication circuit error) is output.

(2) When manual address setup has been done from a remote controller, and central control over refrigerantlines is to be done, setup the header unit of each line as follows:• Using SW13 and SW14 on the interface PC board of the header unit of each line, setup the line address

for each line.• Except for the line with the smallest line address number, set SW03-bit 2 to “off” for the interface PC

board of the header unit of lines connected to the same central control (put the resistance of the endterminals of the central control line, indoors and outdoors, into one).

• Connect the relay connector between U1/U2 and U3/U4 of the header unit for each refrigerant line.• After that, set up the central control address. (For central control address setup, refer to the installation

manual of the central control devices.)

Confirming the indoor unit addresses and the position of an indoor unitusing the remote controller

Confirming the numbers and positions of indoor unitsTo see the indoor unit address of an indoor unit which you know the position of

When the unit is individual (the indoor unit is paired with a wired remote controller one-to-one),or it is a group-controlled one.

1

2

ON / OFFTEMP.

TIME

SET CLFILTERRESET TEST

TIMER SET

CODE No.

UNIT No.

Starts running

˚F

(Execute it while the units are running.)

1 Push the button if the units stop.

2 Push the UNIT LOUVER button (left side of the button).A unit numbers 1-1 is indicated on the LCD (it will disappear after a few seconds). The indicated numbershows the system address and indoor unit address of the unit.When 2 or more indoor units are connected to the remote controller (group-controlled units), a number ofother connected units appears each time you push the UNIT LOUVER button (left side of the button).

– 94 –

To find an indoor unit’s position from its address

When checking unit numbers controlled as a group

(Execute it while the units are stopped.)The indoor unit numbers in a group are indicated one after another. The fan and louvers of the indicated unitsare activated.

1 Push and hold the and buttons at the same time for more than 4 seconds.• ALL appears on UNIT No. on the LCD display.

• The fans and louvers of all the indoor units in the group are activated.

2 Push the UNIT LOUVER button (left side of the button).Each time you push the button, the indoor unit numbers are indicated one after another.• The first-indicated unit number is the address of the header unit.

• Only the fan and louvers of the indicated indoor unit are activated.

3 Push the button to finish the procedure.All the indoor units in the group stop.

To check all the indoor unit addresses using an arbitrary wired remote controller.(When communication wirings of 2 or more refrigerant lines are interconnected for centralcontrol)

(Execute it while the units are stopped.)You can check indoor unit addresses and positions of the indoor units in a single refrigerant line.When an outdoor unit is selected, the indoor unit numbers of the refrigerant line of the selected unit areindicated one after another and the fan and louvers of the indicated indoor units are activated.

3

1 2

1

ON / OFFTEMP.

TIME


TIMER SET

CODE No.

UNIT No.SETTINGDATASET

R.C. No.

Stop

56

1

342

ON / OFFTEMP.

TIME


TIMER SET

CODE No.


R.C. No.

– 95 –

1 Push and hold the TIME and buttons at the same time for more than 4 seconds.At first, the line 1 and CODE No. AC (Address Change) are indicated on the LCD display.(Select an outdoor unit.)

2 Push UNIT LOUVER the (left side of the button) and SWING/FIX buttons repeatedly to select a systemaddress.

3 Push the button to confirm the system address selection.• The address of an indoor unit connected to the selected refrigerant line is indicated on the LCD display

and its fan and louvers are activated.

4 Push the UNIT LOUVER button (left side of the button). Each time you push the button, the indoorunit numbers of the selected refrigerant line are indicated one after another.• Only the fan and louvers of the indicated indoor unit are activated.

To select another system address

5 Push the button to return to step 2.• After returning to step 2, select another system address and check the indoor unit addresses of the line.

6 Push the button to finish the procedure.

Changing the indoor unit address using a remote controller

To change an indoor unit address using a wired remote controller.The method to change the address of an individual indoor unit (the indoor unit is pairedwith a wired remote controller one-to-one), or an indoor unit in a group.(The method is available when the addresses have already been set automatically.)

(Execute it while the units are stopped.)

1 Push and hold the , , and buttons at the same time for more than 4 seconds.(If 2 or more indoor units are controlled in a group, the first indicated UNIT No. is that of the head unit.)

2 Push the UNIT LOUVER button (left side of the button) repeatedly to select an indoor unit number tochange if 2 or more units are controlled in a group. (The fan and louvers of the selectedindoor unit are activated.)(The fan of the selected indoor unit is turned on.)

3 Push the TEMP. / buttons repeatedly to select 1313131313 for CODE No..

358

1

4

2, 6, 7

ON / OFFTEMP.

TIME


TIMER SET

CODE No.


R.C. No.

Finish

– 96 –

4 Push the TIME / buttons repeatedly to change the value indicated in the SET DATAsection to that you want.

5 Push the button.

6 Push the UNIT LOUVER button (left side of the button) repeatedly to select another indoor UNIT No.to change.Repeat steps 4 to 6 to change the indoor unit addresses so as to make each of them unique.

7 Push the UNIT LOUVER button (left side of the button) to check the changed addresses.

8 If the addresses have been changed correctly, push the button to finish the procedure.

To change all the indoor unit addresses using an arbitrary wired remote controller.(The method is available when the addresses have already been set automatically.)

(When communication wirings of 2 or more refrigerant lines are interconnected for central control)

NOTE

You can change the addresses of indoor units in each refrigerant line using an arbitrary wired remote controller.

* Enter the address check/change mode and change the addresses.

If no number appears on UNIT No., no outdoor unit exists on the line. Push CL

button and select another linefollowing step 2.

(Execute it while the units are stopped.)

1 Push and hold the TIME / buttons at the same time for more than 4 seconds.At first, the line 1 and CODE No. AC (Address Change) are indicated on the LCD display.

2 Push UNIT LOUVER (left side of the button) and SWING/FIX buttons repeatedly to select a system address.

3 Push the button.• The address of one of the indoor units connected to the selected refrigerant line is indicated on the LCD

display and the fan and louvers of the unit are activated.At first, the current indoor unit address is displayed in SET DATA.(No system address is indicated.)

3 21

ON / OFFTEMP.

TIME


TIMER SET

CODE No.


R.C. No.

Cancels the line selection

-- --

– 97 –

4 Push the TIME / buttons repeatedly to change the value of the indoor unit address inSET DATA.Change the value in SET DATA to that of a new address.

5 Push the button to confirm the new address on SET DATA.

6 Push the UNIT LOUVER button (left side of the button) repeatedly to select another address to change.Each time you push the button, the indoor unit numbers in a refrigerant line are indicatedone after another. Only the fan and louvers of the selected indoor unit are activated.Repeat steps 4 to 6 to change the indoor unit addresses so as to make each of them unique.

7 Push the button.(All the segments on the LCD display light up.)

8 Push the button to finish the procedure.

Resetting the address(Resetting to the factory default (address undecided))

Method 1Clearing each address separately using a wired remote controller.Set the system address, indoor unit address and group address to “0099” using a wired remote controller.(For the setting procedure, refer to the address setting procedures using the wired remote controller on theprevious pages.)

Method 2Clearing all the indoor unit addresses on a refrigerate line at once from the outdoor unit.

1 Turn off the refrigerant line to reset to the factory default and set the header outdoor unitof the line as below.1) Disconnect the relay connectors between the [U1, U2] and [U3, U4] terminals.

(Leave them as they are if they have already been disconnected.)

48

5, 7 6

ON / OFFTEMP.

TIME


TIMER SET

CODE No.


R.C. No.

Push to finish setting.

Finish

– 98 –

2) Turn on dip switch 2 of SW30 on the interface P.C. board of the header outdoor unit if the switch is OFF.(Leave it as it is if it has already been set to ON.)

2 Turn on the indoor and outdoor units of the refrigerant line for which you want to initializethe addresses. About one minute after turning on the power, confirm that the 7-segmentdisplay on the header outdoor unit indicates “U.1. - - -” and operate the interface P.C. boardon the header outdoor unit of the refrigerant line as follows.

3 Confirm that the 7-segment display indicates “A.d. c.L.” and set SW01, SW02 and SW03 to1, 1, 1 respectively.

4 After a time “U.1.L08” appears on the 7-segment display if the address clearing has beencompleted successfully.If the 7-segment display indicates “A.d. n.G.”, the outdoor unit may still connected withother refrigerant lines. Check the connection of the relay connectors between [U1, U2] and[U3, U4].

NOTE

Take care to carry out the procedure above correctly; otherwise, addresses in other refrigerate lines may alsobe cleared.

5 Set the addresses again after finishing the clearance.

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2

U1U3

U2U4

U5 U6

U1 U2

A B

Central remote controller

Header unit Follower unitFollower unit

Remote controller

Remotecontroller

Remotecontroller

Remotecontroller

Indoor units to have their addresses initialized

Header unit

Header unit

SW01 SW02 SW03 SW04 Clearable addresses

2 1 2Confirm that the 7-segment display indicates “A.d.buS” and turn SW04 ON for more than five seconds.

System/indoor unit/group address

2 2 2Confirm that the 7-segment display indicates “A.d.nEt” and turn SW04 ON for more than five seconds.

Central control address

– 99 –

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2 U5 U6

U1 U2

A B

U3 U4

U1 U2

U1U3

U2U4

U5 U6

U1 U2

A B


Header unit Follower unitFollower unit

Remote controller

Remotecontroller

Remotecontroller

Remotecontroller

Added indoor unit

Header unit

Header unit

In the case of an increase in address-undefined indoor units(extension, etc.)

To set up the indoor address of a unit with an address that is undefined due to the extension of indoor units orreplacement of PC board, etc., follow the methods below.Method 1Set up an address individually from a wired remote controller.(Line address, Indoor address, Group address, Central address)For the setup method, refer to “Manual address setup from the remote controller.” above.Method 2Set up an address from the outdoor unit.* Leave the addresses of the units for which addresses have already been set up as they are. Set up an

address only for the unit where the address is undefined.Addresses are allocated from lower numbers.

Setup procedureSet up the outdoor header units in the refrigerant line to which indoor units have been added, as follows.

1 Remove the relay connector between U1/U2 and U3/U4.

2 If it is off, turn on SW30-bit 2 on the interface PC board at outdoor header unit side.* Turn off the power, and then execute the operation.

3 Turn on the indoor/outdoor power for the refrigerant line for which an address is to be setup.After approximately 1 minute, check that “U.1. - - -” is displayed on the 7-segment display.

4 Execute the following operation on the interface PC board of the header unit.

“AUTO1” → “AUTO2” → “AUTO3” → ... → “AUTO9” ... is counted and displayed on the 7-segment display.

5 When “U.1. - - -” is displayed on the 7-segment display, the setup operation finished.Turn off the indoor/outdoor power.

6 Return to the following setup as before.• Relay connector• SW30-bit 2• SW01, SW02, SW03

SW01 SW02 SW03 SW04

2 14 2 After checking that “In.At” is displayed on the 7-segment display, push SW04 for 5 seconds or more.

– 100 –

8-4-4. Check after Address Setup when Central Control System Is Connected

When the central control system is connected, check that the following setup has finished after address setup.

NOTE


U1 U2

U1 U2 U1 U2 U1 U2 U1 U2

U5 U6

U3 U4

Header unit (A) Header unit (A)

U1 U2 U5 U6

U3 U4

A B A B A B A B

(5)(4)

(5)

(1) (2)(3)

Other refrigerant line

U1 U2

U3 U4

U3 U4

U1 U2 U5 U6

To other refrigerant lineLine address = 1Line address = 2


Follower unit (B)

Outdoor unit

Indoor unit

Remotecontroller

Remotecontroller

Remotecontroller

Main check items Check

Relayconnector

(1) Is the relay connector of the header unit connected after address setup?

(2) Is the relay connector of the follower unit removed?

Terminal resistance

(3) Is the end resistance (SW30-bit 2) of the header unit with the smallest line address number in the central control turned on? (Setup is unnecessary for follower units.)

(4) Is the terminal resistance (SW30-bit 2) of the header units, except for the line with the smallest central control line address, turned off? (Setup is unnecessary for follower units.)

Line address (5)Are addresses in the line address (SW13, SW14) not duplicated in each refrigerant line?

– 101 –

Incorrect

Incorrect

Control wiringbetween indoorunit and FS unit(Within 49 ft (15 m))

Piping

Piping

Piping

FS unit

FS unit

FS unit

Control wiringbetweenindoor unitand FS unit Remote controller

Remote controller

Indoorunit

Indoorunit

Group control

Group control

FS unit Piping

Control wiringbetweenindoor unitand FS unit

Remote controller

Indoorunit

8-4-5. Setting when connecting multiple indoor units to a FS (Flow Selector) unit

Cautions to connection of indoor unit• When connecting the multiple indoor units to a

single FS unit, it is necessary to set up the CODENo..Be sure to set up the CODE No. after setup ofaddress.

• When connecting the multiple indoor units to asingle FS unit, only group control is available.For the indoor unit, a remote controller cannot beindividually connected.

• FS unit must be connected to one of the multipleindoor units which is under group control of aremote controller. The distance between FS unitand the indoor unit must be within 49 ft (15 m).

Incorrect example of connection

How to set up CODE No.

1 Push + buttons simultaneously for4 seconds or more.• ALL is displayed in the UNIT No. window.

• In this time, the fans of all the indoor units inthe group control start the fan operation.

2 Using the set temperature buttons / , select the CODE No. “0E”.

3 Change SET DATA to “01” by the timerbuttons / .

4 Push button.

5 Push button. Then the setup finished.

54

231

.

– 102 –

CODE No.

UNIT No.

R.C. No.

SETTINGSETTINGDATASET

8-4-6. How to set up the cooling only indoor unit

When setting the specific indoor unit to Cooling Onlyunit without connecting to the flow selector unit, setupto the indoor unit to become the Cooling Only unit isnecessary. Perform setup in the following procedure.

Setup to the indoor unit is performed by handling thewired remote controller.Even if a wired remote controller is not used, attach awired remote controller for setup.Change the setup with the wired remote controllerbefore using the air conditioner with a wirelessremote controller.Change the setup during stop of the operation.(Be sure to stop operation of the air conditioner.)

1 When pushing + + buttonssimultaneously for 4 seconds or more,after a while, the display part flashes asshown in the figure.Check that the displayed CODE No. is [10].

• If the CODE No. indicates one other than [10],push button to erase the display, and thenretry the operation from the first step.(After pushing button, the operation of remotecontroller cannot be accepted after a while.)

(* The display changes according to the indoorunit model.)

2 In a group control, the firstly displayedindoor unit No. becomes the header unit.Every pushing

UNIT LOUVER button (left side of the

button), the indoor unit No. in the group control isdisplayed successively.

Select an indoor unit of which setting is to bechanged.

In this time, the position of the indoor unit ofwhich setup is to be changed can be confirmedbecause the fan and louver of the selected indoorunit work.

3 Use or buttons of the settemperature to specify the CODE No. [0F0F0F0F0F].

4 Use or buttons of the timer time toselect the SET DATA [00010001000100010001].

5 Push button. In this time, if the displaychanges from flashing to lighting, thesetup completes.• To change the setup of an indoor unit other

than the selected one, start operation fromProcedure 2.

• In a group control, setup change of all theindoor units in a group is necessary.To change the setup of the set other than theselected one, start again operation fromProcedure 2.

CAUTION

Cooling Only and Heat pump cannot exist in thesame group.

• Pushing button clears the set up contentswhich have been already set.In this case, retry from Procedure 2.

6 When the setup finished, push button.(The setup is determined.)Pushing button deletes the display and returnsto normal stop status.(For some time after button has been pushed,the operation of the remote controller cannot beaccepted.)

No.

13

5 2

4

6

SETTINGDATASET

˚F

CODE No.

UNIT No.SETTING

R.C. No.

SETTINGDATASET

0001SET DATA 0000Cooling Only

setupHeat pump Cooling Only

– 103 –

8-5. Troubleshooting in Test OperationIf there are phenomena such as the output of a check code or the remote controller is not accepted whenpoweredon after wiring work or during address setup operation, the following causes are considered.

8-5-1. A Check Code Is Displayed on the Remote Controller

* “L05”: Displayed on the indoor unit set up with priority“L06”: Displayed on the indoor units except the one set up with priority

Check the code displayed on the indoor remote

controller

Headerunit 7-

segment display

Cause Countermeasures

E04

– When outdoor power is off Check that the header outdoor unit power is on

L08

Address setup error• Only line addresses of the connected indoor units

are undefined.• The outdoor line address and the line addresses

of all the indoor units do not match.• The indoor addresses are duplicated. (Units

except those displaying E04 are duplicated.)• A header unit is not set up in group control (except

groups displaying E04).

Set up the address again.

E08 ⇔ -XXAlternate blinking

Duplication of indoor addresses (address number in the subcode of the check code are duplicated).

Set up the address again.

E07

There is no outdoor terminal resistance, or there are two or more resistances.(After address setup, when terminal resistance setup is changed after powering-on)

Check SW30 bit 2 of the header unit.No connection between multiple refrigerant lines: SW30 bit 2 is on.Connection between multiple refrigerant lines: SW30 bit 2 of the connected header unit is turned on only for one line.

Transmission circuit error at the interface side (PC board failure)

Replace the interface PC board.

E06

After address setup, communication from all the indoor units is interrupted under the condition that a normal operation can be performed.

Check and correct disconnection of the indoor/outdoor communication line (the communication line between the header unit and the leading indoor unit).Check for the influence of communication noise.

E16E16 ⇔ -XXAlternate blinking

Exceeded the number or capacity of connected indoor units

Adjust the number or capacity of connected indoor units.

E23 E23 Communication between outdoor units has stopped. Check the number of connected outdoor units.Check that outdoor unit power is on.

E25 E25 Duplication of outdoor addresses (only when an outdoor address was manually set up)

Do not use manual setup for outdoor addresses.

E26E26 ⇔ -XXAlternate blinking

Number of connected outdoor units has decreased.• When installing an outdoor backup• The power of a follower unit is not turned on.

Correction of the cause of error occurrence• If it occurs when installing a backup, clear the error

after setup finishes.• If the power of a follower unit is not turned on, turn

on the power.

L04 L04

Duplication of outdoor line addresses• Line address setup error (occurred after

connection between U1/U2 and U3/U4 connectors)

Modify the line address setup of the header unit between lines. (Set up SW13 and SW14 on the interface PC board.)

L05(*) L06 Duplication of indoor units with priority Set up priority only for one indoor unit.

L06(*) There are two or more indoor units set up with priority.

Among indoor units indicating “L05,” set one unit with priority.

L08 L08Address setup error• Only indoor addresses of all the connected indoor

units are undefined.

Set up the addresses again.Modify the setup.

ON1 2

SW30

– 104 –

8-5-2. Operation from the indoor remote controller is not accepted, and a check code isdisplayed on the 7-segment display of the interface PC board of the header unit.

8-5-3. There is no display of a check code on the 7-segment display on the interface PC boardof the header unit, although there is indoor unit that is not accepting operation from theindoor remote controller.

Indoor remote controller

status

Header unit 7-segment

displayCause Countermeasures

No response

L08Line addresses and indoor addresses of all the connected indoor units are not set.

Set up addresses.

There is no header unit of group control. Set up a group address.

E19 ⇔ -00Alternate blinking

Indoor unit power is not turned on. Turn on the power again. (In the order: indoor → outdoor)

Indoor/outdoor communication line is not correctly connected to the U1/U2 terminal of the header unit ( Fig. 1). (Indoor/outdoor cannot communicate before address setup.)

Correct wiring

There is no of outdoor terminal resistance, or there are two or more resistances (before address setup).

Check SW30 bit 2 of the header unit.No connection between multiple refrigerant lines: SW30 bit 2 is on.Connection between multiple refrigerant lines: SW30 bit 2 of the connected header unit is turned on only for one line.


When connecting an indoor/outdoor communication line between outdoor units under the condition of a connected communication line between outdoor units ( Fig. 2).

Correct wiring


Address setup is performed with connecting an indoor/outdoor communication line between outdoor units ( Fig. 3).

Correct wiring

Address setup is performed under the condition of connecting multiple refrigerant lines ( Fig. 3).

Correct wiring

ON1 2

SW30

Indoor remote controller

status


displayCause Countermeasures

No response None

The communication line is not connected between indoor and outdoor (the unit that does not respond to the indoor remote controller).

Modify the wiring.

Line address and indoor address are not set (the unit that does not respond to the indoor remote controller).

Set up the address.

The power of the header unit of the group is not turned on in indoor group control (the unit that does not respond to the indoor remote controller).

Turn on the power.

Group address is set to the follower unit for individual control (the unit that does not respond to the indoor remote controller).

Set the group address to “0” in the case of individual control.

No display on the indoor remote

controller (no line is output.)

None

The power is not turned on (the unit that is not displayed on the indoor remote controller).

Turn on the power.

The indoor remote controller is not connected with a wire (the unit that is not displayed on the indoor remote controller).

Modify the wiring.

Miswiring of the indoor remote controller (the unit that is not displayed on the indoor remote controller)

Modify the wiring.

Indoor remote controller communication circuit error (the unit that is not displayed on the indoor remote controller)If 208/230 V is incorrectly applied to the indoor remotecontroller terminal, the remote controller communication circuit fails.

Remove the fast-on terminal connected to indoor remote controller terminals A/B, and check the voltage. If voltage is not applied (normally 15 to 18 V), replace the PC board.

– 105 –

8-5-4. In checking the number of connected outdoor units and connected indoor units afteraddress setup, a lower number of connected units is displayed.(There are outdoor/indoor units that do not operate in a test operation.)

Status Cause Countermeasures

The number of connected

outdoor units is too few.

Miswiring of communication lines between outdoor units or an unconnected wire ( Fig. 4). (Address setup operation finished without recognizing a miswired follower unit.)

After modification of wiring, set up the addresses again and check the number of connected outdoor units.

The number of connected indoor units is too few.

Miswiring of communication lines between indoor units or an unconnected wire ( Fig. 5). (Address setup operation finished without recognizing a miswired indoor unit.)

After modification of wiring, set up the addresses again and check the number of connected indoor units.

The number of outdoor units

connected to a group is too few in

group operation from an indoor

remote controller.

The indoor remote controller is not connected with wire.Miswiring of the indoor remote controller

Using the main indoor remote controller connected to a group, start a test operation, specify the unit that is not operating (the unit not connected to the group), and then check the wiring.

Indoor remote controller communication circuit errorIf 208/230V or 460V is incorrectly applied to the remotecontroller terminal, the remote controller communicationcircuit fails.

Using the main indoor remote controller connected to a group, start a test operation and then specify the unit that is not operating (the unit not connected to the group). Remove the fast-on terminal connected to remote controller terminals A/B, and check the voltage. If voltage is not applied (normally 15 to18 V), replace the PC board.

– 106 –

Miswiring example

FigureRemote

controller status


displayMiswiring example

Fig. 1No

responseE19-00

Fig. 2No

responseE19-02

Fig. 3No

responseE20-01

Figure Status Miswiring example

Fig. 4

The number of connected outdoor units is too few.

Fig. 5

The number of connected indoor units is too few.

U3 U4 U5 U6

U1 U2 U1 U2 U1 U2 U1 U2

Header unit Header unit

U1 U2

Header unit

U1 U2 U1 U2

U5 U6 U1 U2 U5 U6

Follower unit

U1 U2

U1 U2 U1 U2

U1 U2 U1 U2

U1 U2 U1 U2

U5 U6 U1 U2

U1 U2 U1 U2

[Line 1]

U1 U2

Header unit Follower unit Header unit Follower unit Header unit Follower unit[Line 2]

U1 U2

U1 U2 U1 U2

U3 U4U1 U2

U1 U2 U1 U2

U3 U4 U1 U2

U1 U2 U1 U2

U5 U6

U5 U6

U3 U4

U1 U2or

orU3 U4

U1 U2

Header unit Follower unit Header unit Follower unit Header unit Follower unit

or

Wiring forgotten

U1 U2

U1 U2 A B

U1 U2

U1 U2 U1 U2

Header unit Follower unit

– 107 –

8-6. Test Operation Check8-6-1. Fan Check

START

NO

NO

YES

YES

Push the Start/Stop button on the remote controller.

Select the " Fan" operating mode.

Normal

Check every indoor unit in turn.

Is air discharged from the discharge port of the indoor unit?

Is the sound normal?

When a check code has been displayed on the remote controller, remove the cause of the error, referring to "Check code and check position displayed on remote controller and outdoor unit."

Check the indoor fan, fan motor, and fan circuit.

Check positions around the fan.

Check code appears

Check code appears

– 108 –

8-6-2. Cooling/heating test operation check

The cooling/heating test operation check can be performed on both the indoor remote control and the outdoorheader unit interface PC board.(1) Test operation start/stop operationTest operation from the indoor remote control• Wired remote control: Refer to the items below in “Test operation” of the wired remote control.• Wireless remote control: Refer to the items below in “Test operation” of the wireless remote control.

Wired remote control Wireless remote control (Except the 4-wayCassette type and the Ceiling type)

1, 5

3

2, 4

Operation contentProcedure

1

2

When the Test button is pushed for 4 seconds ormore, “TEST” is displayed in the display section,and the unit enters test operating mode.

5

Push the Test button to clear the test operating mode.(“TEST” disappears from the display section, andthe status returns to the normal stopped status.)

3

Using the Select Mode button, select the“ COOL” or “ HEAT” operating mode.• Do not use an operating mode other than “ COOL” or “ HEAT”.• Temperature adjustment is unavailable during test operation.• Error is detected as usual.

Push the button.

4When the test operation has finished, push the button to stop the operation.(The same display as in procedure 1 appears inthe display section.)


1

2

Remove the nameplate of the receiver section byinserting a screwdriver or similar tool into thenotch at the bottom of the plate, and set the DIPswitch to “TEST RUN ON.”

4

3Use either the “ COOL” or “ HEAT”operation mode for a test operation.* The outdoor unit does not operate for approximately 3 minutes after powering-on or stopping operation.

Execute a test operation with the button on thewireless remote control.• The “ ”, “ ” and “ ” LEDs blink during test operation.• Under “TEST RUN ON” status, temperature adjustment from the wireless remote controller is invalid.Do not use this method of operation other than fortest operation because the equipment will bedamaged.

After the test operation is finished, stop the airconditioner from the wireless remote controller,and return the DIP switch of the sensor section toits original position.(A 60-minute timer clearing function is attached tothe sensor section in order to prevent continuoustest operation.)

M4 × 25 screw(2 pieces)

Receiver unit

Spacer

Nameplate

Notch

Small screw

– 109 –


1

2

Turn off the air conditioner fs power.Remove the adjustment corner cap attached tothe sensor section from the ceiling panel.For removing method, follow the installationmanual attached to the ceiling panel.(Be careful when handling the sensor sectionbecause it has cables connected to it.)Remove the sensor cover from the adjustmentcorner cap (held with 1 screw).

5

3

Push the button of the wireless remote control,and select the “ COOL” or “ HEAT” operatingmode with the Mode button. (All display lamps onthe wireless remote control sensor section blinkduring the test operation.)• Do not use any operating mode other than “ COOL” or “ HEAT”.• Error is detected as usual.

4 When the test operation has finished, push the button to stop the operation.

Change Bit 1, “TEST,” of switch S003 on thesensor PC board from “off” to “on.”Replace the sensor cover and attach theadjustment corner cap with the sensors to theceiling panel.Turn on the air conditioner fs power.

Turn off the air conditioner fs power.Change Bit 1 of switch S003 on the sensor PCboard from “on” to “off.”Attach the adjustment corner cap with the sensorsto the ceiling panel.

1

ON

234

Sensor cover

S003

Bit 1 OFF ON

Adjustmentcorner cap

Sensor PC board


1

2

Turn on the air conditioner fs power.

This operation is not accepted for 5 minutes whenpower has been turned on for the first time afterinstallation, and for 1 minute when power has beenturned on the second and subsequent times after that.After the specified time has passed, perform the testoperation.

6

3

Test cooling operation Test heating operation

Set the temperature to64.4 ˚F (18 ˚C) usingthe Temperature settingbutton.

Set the temperature to86 ˚F (30 ˚C) using theTemperature settingbutton.

After checking for thereceiving gbeep h tone,immediately push theTemperature settingbutton to set it to66.2 ˚F (19 ˚C).


4


After checking for thereceiving gbeep h tone,immediately push theTemperature settingbutton to set it to86 ˚F (30 ˚C).

5

Push the button and change the operatingmode to “ COOL” or “ HEAT” with the Modebutton.Then change the fan speed to “ High” usingthe “Fan” button.

Then repeat steps 4 → 5 → 4 → 5. Afterapproximately 10 seconds, the “OPERATION”(green) and “READY” (yellow) display lamps onthe sensor part of the wireless remote controllerblink, and the air conditioner starts operating.If the lamps do not blink, repeat step 2 and thesubsequent steps.

Outline of test operation from the wireless remote controllerTest cooling operation:Start → 64.4 ˚F (18 ˚C) → 66.2 ˚F (19 ˚C) → 64.4 ˚F (18 ˚C)→ 66.2 ˚F (19 ˚C) → 64.4 ˚F (18 ˚C) → 66.2 ˚F (19 ˚C) → 64.4 ˚F (18 ˚C) → (Test operation) → StopTest heating operation:Start → 86 ˚F (30 ˚C) → 84.2 ˚F (29 ˚C) → 86 ˚F (30 ˚C) → 84.2 ˚F (29 ˚C) → 86 ˚F (30 ˚C) → 84.2 ˚F (29 ˚C) → 86 ˚F(30 ˚C) → (Test operation) → Stop

7 After the test operation, push the Start/Stopbutton to stop the operation.

3, 4, 5, 62,7

22

Always select [ HIGH] fan speed.

Wireless remote control (4-way Cassette type) Wireless remote control (Ceiling type)

Test operation from the outdoor unit• Refer to “Function to start/stop (ON/OFF) indoor unit from outdoor unit” in “Service support function.”Note: The test operation returns to normal operating mode after 60 minutes.

– 110 –

(2) Test operation

Note 1

Note 2

Note 3

START

NormalNotes 1-3 are on the next page.

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

NO

YES

Test operation for one indoor unit

Operation starts

Is cold air or hot air discharged?

Is air circulation sufficient?

Operate all the indoor units at once.

Is there adequate temperature difference between suction and discharge?

Is the operating voltage correct? (FT9: 208/230V ± 10%, FT6: 460V ± 10%)

Is the operating current normal?

Is the operating pressure normal?

Refer to "Test operation procedure" of the indoor remote controller.

Check the operating status of the compressor.

Execute a test operation using "Start/Stop Function of the Indoor Unit from Outdoor Unit" in the "Service Support Function" section.

• Check power voltage of the main power supply.

• Check the cable size of the power supply.

• Check the temperature load of the indoor/outdoor units.

• Check the pipe length and refrigerant amount.

• Check the operating Herts of the compressor.

• Check the operation of the outdoor fans.

• Check for abnormal sound in the outdoor unit.(Abnormal sound, etc. of the compressor and other components)

Check the direction of the louver.

The operation does not start for approximately 3 minutes after powering-on or stopping operation.

Note: After powering-on, it may require up to 10 minutes to start the operation due to the initial communications of the system.

Test

ope

ratio

n fo

r ev

ery

indo

or u

nit i

n tu

rn

– 111 –

Note 1: Criteria for the difference between suction and discharge temperatures(1) Individual cooling operation

After operating for a minimum of 30 minutes in “COOL” mode, if the ΔT dry bulb temperature differencebetween suction and discharge air of the indoor unit is 46.4°F (8°C) or more, it is normal.

(2) Individual heating operationAfter operating for a minimum of 30 minutes in “HEAT” mode, if the ΔT dry bulb temperature differencebetween suction and discharge air of the indoor unit is 59°F (15°C) or more, it is normal.* If demand from the indoor unit on the outdoor unit is low because the difference between the temperature

set by the remote controller and the temperature of the room is small, then the ΔT temperature differenceis small.

* Consider that ΔT temperature difference may diminish in cases of a system in which the connected indoorunit capacity exceeds the outdoor unit capacity, the pipe length is long, or a large difference exists amongoutdoor units.

Note 2: Criteria for operating power currentThe table below shows the maximum current for each outdoor unit. Under standard conditions, operatingcurrent is about 80% of the value shown in the table below.

Note 3: Criteria for cycle status(1) These data are based on operating a 4-way Cassette type air conditioner of 100% connection with

standard piping length.Data may vary depending on temperature conditions, installed pipe length, and room shape combinations,or indoor unit connection capacity.For pressure criteria in different temperature conditions, refer to (2).

* This compressor is driven with a 4-pole motor. The value of the compressor frequency (rps) measured with aclamp meter at the compressor lead line is two times the rotation count (rps) of the compressor.

* Each compressor may have a different frequency as a measure against resonance.* The temperature of the indoor heat exchanger (TC) indicates TCJ sensor temperature when cooling, and

TC2 sensor temperature when heating, respectively.

(2) Criteria for operating pressure

* Criteria after 15 minutes or more has passed since operating started.

(3) On rotations of outdoor fansOutdoor fans may rotate slowly to control pressure when cooling with low outer air temperature or heatingwith excessive load. For control content, also refer to items in Section 5, “Control Outline: Outdoor Unit,Outdoor Fan Control.”

Outdoor unit

current valve

MMY-MAP

(A)

0724FT9UL

34

0964FT9UL

50

1204FT9UL 0724FT6UL 0964FT6UL 1204FT6UL

52 19 28 30

ModelMMY-MAP

Operatingmode

Pressure (psi) Pipe surface temperature (˚F) Number of compressor rotations (rps)*

Indoorfan

Air temperaturecondition

(DB/WB)(˚F)Pd Ps Discharge(TD)

Suction 1(TS1)

Suction 2(TS2)

Indoorheat

exchanger(TC)

Outdoorheat

exchanger(TE)

Liquidtemperature

(TL)

Compressor1

Compressor2

Compressor3

Indoor Outdoor

0724FT9UL/ 0724FT6UL

All cooling

All heating

All cooling

All heating

All cooling

All heating

410

428

415

430

421

435

130

102

130

102

130

100

183

184

184

186

186

184

82

39

83

37

84

37

59

40

60

38

60

39

48

100

48

100

50

101

105

38

105

36

105

36

102

90

102

91

102

91

50

50

45

50

50

57

50

50

45

50

50

57

—

—

45

50

50

57

High

High

High

High

High

High

80/67

70/—

80/67

70/—

80/67

70/—

95/—

47/43

95/—

47/43

95/—

47/43



Operating mode All cooling

Indoor temp.

Outdoor temp.

PressurePd

Ps

(˚F)

(˚F)

(psi)

(psi)

64 – 90

77 – 95

290 – 465

75 – 135

All heating

59 – 77

41 – 50

365 – 475

70 – 110

– 112 –

8-7. Confirmation of Test Operation8-7-1. Function to Start/Stop (ON/OFF) Indoor Unit from Outdoor Unit

The following functions of the indoor unit can start or stop by the switches on the interface P.C. board of the header unit.

NOTE 1) This start/stop function only sends the signals from the outdoor unit to the indoor unit, such as start, stop,operation mode, etc. It does not resend the signals even if the indoor unit does not follow the sent signals.

NOTE 2) The above controls are not used during abnormal stop.

No. Function Outline Setup/Release 7-segment display1 All cooling

testoperation

Changes the mode of all theconnected indoor units collectivelyto cooling test operation.Note) Control operation same as usual test operation from remote control is performed.

[Setup]Set SW01/SW02/SW03 to [2/5/1], andpush SW04 for 2 seconds or more.[Release]Return SW01/SW02/SW03 to [1/1/1].

Section A[C. ]

[ 00] is displayed on Section B for 5seconds.

Section B[ – C]

2 All heatingtestoperation

Changes the mode of all theconnected indoor units collectivelyto heating test operation.Note) Control operation same as usual test operation from remote control is performed.


Section A[H. ]

Section B[ – H]

3 Fan testoperation

Changes operation mode of all theconnected indoor units collectivelyto test operation mode.Note) Control operation same as usual test operation from remote control is performed.


Section A[F. ]

Section B[ – F]

4 Batch start Starts all the connected indoorunits collectively.Note) The contents follow to the setup of remote controller.

[Setup]Set SW01/SW02/SW03 to [2/7/1], andpush SW04 for 2 seconds or more.[Release]Return SW01/SW02/SW03 to [1].

Section A[C.H]

Section B[ 11]

Section A: Displays the correspondingindoor address.Section B: Displays [ 11] for 5 secondsfrom operation-ON.

5 Individualstart

Starts the specified indoor unit.Notes) • The contents follow to the setup of remote controller. • The other indoor units keep the status as they are.

[Setup]Set SW01 to [16], set SW02 and SW03to address No. (1 to 40) to be started,and push SW04 for 2 seconds or more.[Release]Return SW01/SW02/SW03 to [1/1/1].

Section A[ ]

Section B[ ]

Section A: Displays the correspondingindoor address.Section B: Displays [ 00] for 5 secondsfrom operation-OFF.

Individualstop

Stops the specified indoor unit.Note) The other indoor units keep the status as they are.

[Setup]Set SW01 to [16], set SW02 and SW03to address No. (1 to 40) to be stopped,and push SW05 for 2 seconds or more.[Release]Return SW01/SW02/SW03 to [1/1/1].

Section A[ ]

Section B[ ]

Section A: Displays the correspondingindoor address.Section B: Displays [ FF] for 5 secondsfrom test operation-ON.

Individualtestoperation

Operates the specified indoor unit.Note) The other indoor units keep the status as they are.

[Setup]Set SW01 to [16], set SW02 and SW03to address No. to be operated, andpush SW04 for 10 seconds or more.[Release]Return SW01/SW02/SW03 to [1/1/1].

Section A[ ]

Section B[ ]

[ 00] is displayed on Section B for 5seconds.

Batch stop Stops all the connected indoorunits collectively.

[Setup]Set SW01/SW02/SW03 to [2/7/1], andpush SW05 for 2 seconds or more.[Release]Return SW01/SW02/SW03 to [1].

Section A[C.H]

Section B[ 00]

SW02 SW03SW01

SW04 SW05

7-segment display [A] 7-segment display [B]

<Rotary switches>

– 113 –

(1) All cooling test operation functionThis function is provided to change collectively the mode of all the indoor units connected to the same systemfor the cooling test operation mode, by using switches on the interface P.C. board of the header unit.<Operation procedure>

NOTE) The test operation returns to the normal operation after 60 minutes.

Power ON

Start

Operation check

[A]

[C. ]

[B]

[ – C]

Stop/End

Be sure to turn on power at the indoor side before power-ON of outdoor unit.

Set SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/5/1]. ([C. ] is displayed on 7-segment display [A].)

[Test run] is displayed on the remote controller of the indoor unit to be operated.Check that [ – C] is displayed on 7-segment display [B] on the interface P.C. board of the header unit.

Push SW04 on the same board for 2 seconds or more.

Return SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/1/1], or push the push switch SW05 for 2 seconds or more.


SW04 SW05

<Rotary switches>SW02 SW03SW01

– 114 –

(2) All heating test operation functionThis function is provided to change collectively the mode of all the indoor units connected to the same systemfor the heating test operation mode, by using switches on the interface P.C. board of the header unit.<Operation procedure>

NOTE) The test operation returns to the normal operation after 60 minutes.

[A]

[H. ]

[B]

[ – H]

Power ON

Start

Operation check

Stop/End


[Test run] is displayed on the remote controller of the indoor unit to be operated. Check that [ – H] is displayed on 7-segment display [B] on the interface P.C. board of the header unit.

Set SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/6/1].([H ] is displayed on 7-segment display [A].)


Return SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/1/1], or push the push switch SW05 for 2 seconds or more.


SW04 SW05


– 115 –

(3) Single fan test operation functionThis function is provided to change collectively the mode of all the indoor units connected to the same systemfor the fan test operation mode by using switches on the interface P.C. board of the header unit.<Operation procedure>

NOTE) The test operation ends after 60 minutes and the operation returns to normal status.

[A]

[F. ]

[B]

[ – F]

Power ON

Operation

Operation check

Stop/End

Push the push switch SW4 for 2 seconds or more on the P.C. board.

[Test run] is displayed on the remote controller ofthe indoor unit to be operated. Check that7-segment display [B] on the interface P.C. boardof the header unit changed to [– C]

Match [SW01/SW02/SW03] on the interface P.C.board of the headerunit to [2/5/1]. (7-segment display [A] changes to [F. ].)

Be sure to turn on power of the indoor unitand then turn on power supplies at outdoor unit side.

Return [SW01/SW02/Sw03] on the interface P.C. board of the headerunit to [1/1/1].or push the push switch [SW05] for 2 seconds or more.


SW04 SW05


– 116 –

(4) Batch start/stop (ON/OFF) functionThis function is provided to start/stop collectively all the indoor units connected to the same system by usingswitches on the interface P.C. board of the header unit.<Operation procedure>

Power ON

Start

Stop

End

Operation check


If an error is already displayed with SW01/SW02/SW03 being [1/1/1], return the status to normal one according to troubleshooting and then execute a test operation.

The unit which is not given with priority by heating priority control, cooling priority control, and selection of cooling or heating mode is not operated.In this case, " operation ready" or " operation mode controlled" is displayed on the remote controller.

If the discharge temperature does not change though COOL or HEAT has been set up from the remote controller, misconnection is considered.


The indoor unit to be started operates.

Push the push switch SW05 on the interface P .C. board of the header unit for 2 seconds or more.

After test operation, return the rotary switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/1/1].

Set up the operation mode of the remote controller.(If it is not set up, the operation continues with the current mode.)(FAN/COOL/HEAT)

Set SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/7/1].([C.H ] is displayed on 7-segment display [A].)


SW04 SW05


– 117 –

(5) Individual start/stop (ON/OFF) individual test operation functionThis function is provided to start/stop (ON/OFF) individually each indoor unit connected to the same system byusing switches on the interface P.C. board of the header unit.Set SW01 [16] and set SW02, SW03 to indoor address No. (1 to 40) to be started (Refer to the followingtable*) - only the setup indoor unit starts operation.

(In the rotary switches of the indoor unit which operates in a group by the remote controller, the follower unitcannot be individually started or stopped. In this case, [ - - ] is displayed on 7-segment display [B] on theinterface P.C. board of the header unit.)<Operation procedure>

NOTE) The individual test operation returns to the normal operation after 60 minutes.

* SW01 SW02 SW03 Units to be operated

16 1

16 2

16 3

Address 1 to Address 16 } individually



In individual start/stop

1~16

1~16

1~16

Power ON

Start

End

(7-segment display)

[A][ ]

[B][ ]

(7-segment display)

[A][ ]

[B][ ]

(7-segment display)[A]

[ ][B]

[ ]


Set up the operation mode of the remote controller.(If it is not set up, the operation continues with the current mode.)

Push the push switch SW04 on the same board for 2 seconds or more.(If pushed continuously for 10 seconds or more, the operation changes to the individual test operation.)

Match the rotary switches on the interface P.C. board of the header unit to the following table*.

If an error is already displayed with SW01/SW02/SW03 being [1/1/1], return the status to normal one according to troubleshooting and then execute a test operation.

The unit which is not given with priority by heating priority control, cooling priority control, and selection of cooling or heating mode is not operated.In this case, " operation ready" or " operation mode controlled" is displayed on the remote controller.

Address display of corresponding

indoor unit


indoor unit

[ 11] is displayed for 5 seconds after operation-ON.(For individual test operation, [ FF] is displayed.)

[ 00] is displayed for 5 seconds after

operation-ON.


indoor unit

[ 00] is displayed for 5 seconds after

operation-ON.

Operation check

If the discharge temperature does not change though COOL or HEAT has been set up from the remote controller, misconnection is considered.

The indoor unit to be started operates.

Push the push switch SW05 on the interface P.C. board of the header unit for 2 seconds or more.

After test operation, return the display select switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [1/1/1].

SW04 SW05

SW02 SW03SW01


<Rotary switches>

– 118 –

8-7-2. Error Clearing Function

(1) Clearing from the main remote controller

Error clearing in outdoor unitError of the outdoor unit currently detected is cleared by the unit of one refrigerant circuit system to which theindoor units operated by the remote controller is connected. (Error of the indoor unit is not cleared.)For clearing errors, the service monitor function of the remote controller is used.<Method>

1 Change the mode to service monitor mode by pushing + buttons simultaneously for 4seconds or more.

2 Using buttons, set CODE No. to “FF”.

3 The display in Section A in the following figure is counted with interval of 5 seconds as“0005” →→→→→ “0004” →→→→→ “0003” →→→→→ “0002” →→→→→ “0001” →→→→→ “0000”.When the count arrives “0000”, the error is cleared.* However, counting from “0005” is repeated on the display.

4 When TEST

button is pushed, the status returns to the normal status.

Error clearing in indoor unitError in the indoor unit is cleared by button on the remote controller.(Only error of the indoor unit connected with operating remote controller is cleared.)

SET

TIME

TIMER SET

TESTFILTERRESET

TEMP.

CL

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

14

2

3Section A

– 119 –

(2) Clearing error by using switches on the interface board of the header unitUsing the switches on the interface P.C. board of the header unit, this function is to clear the currently detectederror for each refrigerant circuit system without resetting the power supply.Errors in both outdoor and indoor units are once cleared, and error detection is performed again.

(3) Clearing error by resetting powerThis function is provided to clear error in a system by resetting the power of all the outdoor and the indoorunits.As same as the clearing method by the interface P.C. board, errors of both the outdoor and the indoor units areonce cleared, and error detection is performed again.<Method>(1) Be sure to reset power of both the outdoor and the indoor units.(2) Turn on the power of the indoor unit prior to the power of the outdoor unit.

(If the power is turned on in reverse order, a check code [E19] (No. of header unit error) is output.)

NOTE) After power reset, it requires usually 3 minutes to power-on due to the initial communication of thesystem. In some cases, it requires max. 10 minutes.

7-segment display

[A] [B]

[ E r ] [ ]

7-segment display

[A] [B]

[ E r ] [ C L ]

Set the rotary switches on the interface P.C. board of the header unit as follows.Set SW01/SW02/SW03 to [2/16/1]

Push the push switch SW04 on the same board for 5 seconds or more.

[ C L] is displayed in 7-segment display [B] on the board (for 5 seconds), and the error is completely cleared.

Interface P.C. board

SW04 SW05

SW02 SW03SW01


<Rotary switches>

– 120 –

8-7-3. Remote Controller Distinction Function

This function is provided to distinguish the remote controller connected to the indoor unit from the outdoor unitfor a refrigerant circuit system by using switches on the interface P.C. board of the header unit.<Distinction procedure>

Power ON

End

Check the connected remote controller

Operation

7-segment display

[A] [B]

[ A 1 ] [ ]

7-segment display

[A] [B]

[ A 1 ] [ FF]

Be sure to turn on the power of the indoor unit prior to the power of the outdoor unit.

Set the display select switches on the interface P.C. board of the header unit as follows:Set SW01/SW02/SW03 to [2/4/1]

Push the push switch SW04 on the same board for 2 seconds or more.

"Checking" display of the connected remote controller flashes.

Push the push switch SW05 on the interface P.C. board of the header unit for 2 seconds or more.

Other end conditions:1. 10 minutes has passed2. SW01, SW02, or SW03 changed to other position.


SW04 SW05

SW02 SW03SW01


<Rotary switches>

– 121 –

8-7-4. Pulse Motor Valve (PMV) Forced Open/Close Function in Indoor Unit

This function is provided to open or close forcedly PMV for 2 minutes in all the indoor units by the switchoperation on the interface P.C. board of the header unit.This function is also used to open PMV fully when turning off the power and executing an operation.

<Operation>

[Open fully]Set the switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/3/1], and push SW04for 2 seconds or more.(Display appears on 7-segment display for 2 minutes as follows.) [P ] [ FF]

[Close fully]Set the switches SW01/SW02/SW03 on the interface P.C. board of the header unit to [2/3/1], and push SW05for 2 seconds or more.(Display appears on 7-segment display for one minute as follows.) [P ] [ 00]

[Clear]After 2 minutes (1 minutes for “Close fully”) after setting up, the opening automatically returns to the normalopening.

8-7-5. Pulse Motor Valve (PMV) Forced Open Fully/Close fully Function in Outdoor Unit

This function is provided to forcedly open or close fully P.M.V. (PMV1/PMV2, PMV4) used in the outdoor unitfor 2 minutes.

[PMV1/PMV2 Open fully]On the interface P.C. board of the outdoor unit, set the dip switch [SW12·bit1] to [OFF], [SW12·bit2] to [OFF],and shortcircuit CN30.

[PMV1/PMV2 Close fully]On the interface P.C. board of the outdoor unit, set the dip switch [SW12·bit1] to [OFF], [SW12·bit2] to [OFF],and shortcircuit CN31.

[PMV4 Open fully]On the interface P.C. board of the outdoor unit, set the dip switch [SW12·bit1] to [OFF], [SW12·bit2] to [ON],and shortcircuit CN30.

[PMV4 Close fully]On the interface P.C. board of the outdoor unit, set the dip switch [SW12·bit1] to [OFF], [SW12·bit2] to [ON],and shortcircuit CN31.

[Clear]For both open fully and close fully, after 2 minutes, the opening returns to the normal opening.Be sure to remove the cord used for short-circuit after confirmation, and set the dip switch [SW12·bit1] to [OFF]and [SW12·bit2] to [OFF].

– 122 –

8-7-6. Solenoid Valve Forced Open/Close Function in Outdoor Unit

This function is provided to forcedly open each solenoid valve mounted in the outdoor unit by the switchoperation on the interface P.C. board in the outdoor unit. Use this function to check there is no refrigerantclogging with ON/OFF operation of the solenoid valve.

[Operation](1) Set the switches SW01/SW02/SW03 on the interface P.C. board of the outdoor unit to [2/1/3].(2) When [H. r] is displayed in 7-segment display [A], keep pushing the switch SW04 for 2 seconds or more.(3) From when [ 2 ] is displayed in 7-segment display [B], SV2 is turned on.(4) After then, ON and OFF of each solenoid valve are exchanged by changing the setup number of the switch

SW02.(ON/OFF output pattern of each solenoid valve is as shown below.)

NOTE 1) Display in 7-segment display [B] is exchanged just when the number of SW02 has been changed; onthe other hand, the solenoid valve output is exchanged when SW02 has been kept with the samenumber for 5 seconds or more.

NOTE 2) The mark [O] in the table indicates that the corresponding solenoid valve is forcedly turned on.NOTE 3) The mark [-] in the table indicates that ON/OFF of the solenoid valve is controlled based upon the

specifications of the air conditioner.NOTE 4) The mark [×] in the table indicates that the corresponding solenoid valve is forcedly turned off with

this operation.NOTE 5) The case heater output is for both the compressor and accumulator heaters.

[Clear]Return switches SW01/SW02/SW03 on the interface P.C. board to [1/1/1].

NOTE) As this function is not based on the specified general control, be sure to release this mode afterchecking.

SW02 7-segmentdisplay [B]

Operation pattern of solenoid valve Case heateroutputSV2 SV5 SV41 SV42 SV43 SV3A SV3B SV3C SV3D SV3E SV3F SV6 SV11 SV14

O

—

—

—

—

—

—

—

—

—

—

—

—

—

O

[ 2 ]

[ 5 ]

[ 41 ]

[ 42 ]

[ 43 ]

[ 3A ]

[ 3b ]

[ 3C ]

[ 3d ]

[ 3– ]

[ 6 ]

[ ]

[ 11 ]

[ 14 ]

[ ALL ]

1

2

3

4

5

6

7

8

9

10

11

12

13

15

16

—

O

—

—

—

—

—

—

—

—

—

—

—

—

O

—

—

O

—

—

—

—

—

—

—

—

—

—

—

O

—

—

—

O

—

—

—

—

—

—

—

—

—

—

O

—

—

—

—

O

—

—

—

—

—

—

—

—

—

O

—

—

—

—

—

O

—

—

—

O

—

—

—

—

O

—

—

—

—

—

—

O

—

—

O

—

—

—

—

O

—

—

—

—

—

—

—

O

—

O

—

—

—

—

O

—

—

—

—

—

—

—

×O

×—

—

—

—

O

O

O

O

O

O

O

O

O

×O

O

O

O

O

O

—

—

—

—

—

—

—

O

O

×—

—

—

—

O

—

—

—

—

—

—

—

—

—

—

O

—

—

—

O

—

—

—

—

—

—

—

—

—

—

—

—

O

—

O

—

—

—

—

—

—

—

—

—

—

—

—

—

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

O

– 123 –

8-7-7. Fan Operation Check in Outdoor Unit

This function is provided to check the fan operation of the outdoor unit by using switches on the interface P.C.board in the outdoor unit. The frequency of the fan speed can be controlled by setting of the switches. Use thisfunction to check the operation or abnormal sound in the fan system. And, use this function while the system isstopped.NOTE) Do not use this function during operation of the compressor. It may damage the compressor.

[Operation](1) Set the switches SW01/SW02/SW03 on the interface P.C. board of the outdoor unit to [2/1/4].(2) When [F. d] is displayed in 7-segment display [A], keep pushing the switch SW04 for 2 seconds or more.(3) When [ 63 ] is displayed in 7-segment display [B], the fan starts operation. (Max. mode operation)(4) After that, by changing the setup number of the switches SW02 and SW03, 7-segment display [B] and the

fan mode are changed.(Mode output pattern of the fan is as follows.)

SW02 SW03 7-segment display [B] Fan mode

1

4

[ 63 ] 63

2 [ 62 ] 62

3 [ 61 ] 61

4 [ 60 ] 60

5 [ 59 ] 59

6 [ 58 ] 58

7 [ 57 ] 57

8 [ 56 ] 56

9 [ 55 ] 55

10 [ 54 ] 54

11 [ 53 ] 53

12 [ 52 ] 52

13 [ 51 ] 51

14 [ 50 ] 50

15 [ 49 ] 49

16 [ 48 ] 48

1

5

[ 47 ] 47

2 [ 46 ] 46

3 [ 45 ] 45

4 [ 44 ] 44

5 [ 43 ] 43

6 [ 42 ] 42

7 [ 41 ] 41

8 [ 40 ] 40

9 [ 39 ] 39

10 [ 38 ] 38

11 [ 37 ] 37

12 [ 36 ] 36

13 [ 35 ] 35

14 [ 34 ] 34

15 [ 33 ] 33

16 [ 32 ] 32

SW02 SW03 7-segment display [B] Fan mode

1

6

[ 31 ] 31

2 [ 30 ] 30

3 [ 29 ] 29

4 [ 28 ] 28

5 [ 27 ] 27

6 [ 26 ] 26

7 [ 25 ] 25

8 [ 24 ] 24

9 [ 23 ] 23

10 [ 22 ] 22

11 [ 21 ] 21

12 [ 20 ] 20

13 [ 19 ] 19

14 [ 18 ] 18

15 [ 17 ] 17

16 [ 16 ] 16

1

7

[ 15 ] 15

2 [ 14 ] 14

3 [ 13 ] 13

4 [ 12 ] 12

5 [ 11 ] 11

6 [ 10 ] 10

7 [ 9 ] 9

8 [ 8 ] 8

9 [ 7 ] 7

10 [ 6 ] 6

11 [ 5 ] 5

12 [ 4 ] 4

13 [ 3 ] 3

14 [ 2 ] 2

15 [ 1 ] 1

16 [ 0 ] 0

[Clear]This function is cleared by one of the following operations.(1) When SW01 setting number was changed to other number.(2) Push-switch SW05 was push for 2 seconds or more.

– 124 –

8-7-8. Abnormal Outdoor Unit Discrimination Method By Fan Operating Function

This function is provided to forcedly operate the fan of the outdoor unit in which an error occurred or the fan ofthevnormal outdoor unit by the switch operation on the interface P.C. board in the header unit.To specify which one of the follower units connected to the system was faulty, use this function for the systemstop due to a follower unit fault (Check code [E28]).

[Operation]<In case to operate the fan in the erroneous outdoor unit only>(1) Check that the switches SW01/SW02/SW03 on the interface P.C. board in the header unit are set to [1/1/1].

(2) Push the push switch SW04 for 2 seconds or more.(3) [E 1] is displayed on 7-segment display [A].(4) The fan of the outdoor unit in which error occurred starts operation within approx. 10 seconds after [E 1]

was displayed.

<In case to operate the fans in all the normal outdoor units>(1) Check that the switches SW01/SW02/SW03 on the interface P.C. board in the header unit are set to [1/1/1].(2) Push the push switches SW04 and SW05 at the same time for 2 seconds or more.(3) [E 0] is displayed on 7-segment display [A].(4) The fans of all the normal outdoor units start operation with the Max. fan speed within approx. 10 seconds

after [E 0] was displayed.

[Release]Push the push switch SW05 on the interface P.C. board in the header unit for 2 seconds or more.The outdoor fan which was operated stops.* Check that [U. 1] is displayed on 7-segment display [A], and then finish the work.

[A] [B]7-segment display

Outdoor unit No. Error code display

– 125 –

8-7-9. Manual Adjustment Function of Outside Temperature (TO) Sensor

This function is provided to fix TO sensor value manually by the switch operation on the interface P.C. board inthe outdoor unit. When the unit stops abnormally due to TO sensor failure, etc, an emergent operation isavailable by setting up the value manually to position near the current outside temperature.

[Operation](1) Set the rotary switches on the interface P.C. board to numbers as follows:

• SW01/SW02/SW03 to [2/1/15]• 7-segment display: [ t o ]

(2) Keep pushing the push switch SW04 on the interface P.C. board for 1 second or more. The mode changesto the TO sensor value fix manual mode.

(3) As shown in the following table, TO sensor value can be fixed by setting the rotary switch SW02 on theinterface P.C. board.

[Clear]Return SW01/SW02/SW03 on the interface P.C. board in the outdoor unit to [1/1/1].

NOTE

If operated with TO sensor fixed by this function, the system control operation of the air conditioner may not bebased on the specification of the product. Therefore an emergent operation should be restricted to a day or so.

SW02

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16


[ 50 ]

[ 59 ]

[ 68 ]

[ 77 ]

[ 86 ]

[ 95 ]

[ 104 ]

[ 109 ]

[ 113 ]

[ 5 ]

[ 14 ]

[ 23 ]

[ 32 ]

[ 35 ]

[ 41 ]

[ 44 ]

TO sensor value

50˚F (10˚C)

59˚F (15˚C)

68˚F (20˚C)

77˚F (25˚C)

86˚F (30˚C)

95˚F (35˚C)

104˚F (40˚C)

109˚F (43˚C)

113˚F (45˚C)

5˚F (–15˚C)

14˚F (–10˚C)

23˚F (–5˚C)

32˚F (0˚C)

35˚F (2˚C)

41˚F (5˚C)

44˚F (7˚C)

– 126 –

<Service support function list>

SW01 SW02 SW03 7-segment display [A] Function contents

1 [J . C] Refrigerant circuit and control communication line check function (Cooling operation)

2 [J . H] Refrigerant circuit and control communication line check function (Heating operation)

3 [P . ] Indoor PMV forced full open function

4 [A . 1] Indoor remote controller discriminating function

5 12 [C . ] Cooling test operation function

32 [H . r] Solenoid valve forced open/close function

1~16 4~72 [F . d] Fan forced operation function

152 [t . o] Outside temperature sensor manual adjustment function

6 [H . ] Heating test operation function

7 [C . H] Indoor collective start/stop (ON/OFF) function

11 [r . d] Outdoor refrigerant recovery operation function (Pump down function)

16 [E . r] Error clear function

SW01 SW02 SW03 7-segment display [A/B] Function contents

1 11 [U 1] [ E28 ] Follower unit error / Corresponding unit fan operation function

1 [0 1]~[1 6] Indoor No. 1 to 16 unit

1~16 216 [1 7]~[3 2] Indoor No. 17 to 32 unit

3 [3 3]~[4 0] Indoor No. 33 to 40 unit

Indoor individual start/stop (ON/OFF) function

– 127 –

8-7-10. Monitor Function of Remote Controller Switch

When using a remote controller with the model name RBC-AMT32UL, the following monitorfunctions can be used.

Calling of display screen<Content>The sensor temperature or operation status of the remote controller, indoor unit, or the outdoor unit can beknown by calling up the service monitor mode from the remote controller.

[Procedure]

1 Push + buttons simultaneously for 4 seconds or more to call up the service monitormode.The service monitor goes on, and temperature of the CODE No. 00 is firstly displayed.

2 Push the temperature setup buttons to select the CODE No. to be monitored.For displayed codes, refer to the table next page.

3 Push button to determine the item to be monitored.Then monitor the sensor temperature or operation status of indoor unit and the outdoor unit in thecorresponding refrigerant line.

4 Pushing button returns the display to the normal display.

SET

TIME

TIMER SET

TESTFILTERRESET

TEMP.

CL

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

14

2

3

– 128 –

CODE No. Data name Display format Unit Remote controller display example

00

01

02

03

04

05

06

08

0A

0B

0C

0D

Room temperature (During control)

Room temperature (Remote controller)

Indoor suction temperature (TA)

Indoor coil temperature (TCJ)

Indoor coil temperature (TC2)

Indoor coil temperature (TC1)

Indoor discharge temperature (TF) *1

Indoor PMV opening

No. of connected indoor units

Total capacity of connected indoor units

No. of connected outdoor units

Total capacity of outdoor unitsSys

tem

dat

aIn

door

uni

t dat

a *2

×1

×1

×1

×1

×1

×1

×1

×1/10

×1

×10

×1

×10

˚C

˚C

˚F

˚F

˚F

˚F

˚F

pls

unit

Ton

unit

Ton

[0027] = 27˚C

[0080] = 80˚F

[0150] = 1500pls

[0024] = 24 units

[0215] = 21.5 Ton

[0002] = 2 units

[0160] = 16 Ton

CODE No.Data name Display format Unit Remote controller display example

U2U1

20

21

22

23

24

25

26

27

28

29

2A

2B

2C

2D

2E

2F

10

11

12

13

14

15

16

17

18

19

1A

1B

1C

1D

1E

1F

High-pressure sensor detention pressure (Pd)

Low-pressure sensor detention pressure (Ps)

Compressor 1 discharge temperature (Td1)



Suction temperature (TS)

Outdoor coil temperature 1 (TE1)

Outdoor coil temperature 2 (TE2)

Temperature at liquid side (TL)

Outside ambient temperature (TO)

PMV1 + 2 opening

PMV4 opening

Compressor 1 current (I1)



Outdoor fan current (IFan)

Out

door

uni

t ind

ivid

ual d

ata

1 *3

×10

×10

×1

×1

×1

×1

×1

×1

×1

×1

×1

×1

×10

×10

×10

×10

psi

psi

˚F

˚F

˚F

˚F

˚F

˚F

˚F

˚F

pls

pls

A

A

A

A

[4350] = 435 psi

[0080] = 80˚F

[0500] = 500pls

[0135] =13.5A

CODE No.Data name Display format Unit Remote controller display example

U2U1

60

61

62

63

64

65

66

67

50

51

52

53

54

55

56

57

Compressor 1 revolutions



Outdoor fan mode

Compressor IPDU 1 heat sink temperature



Outdoor fan IPDU heat sink temperature

[0642] = 64.2rps

[0058] = 58 mode

[0080] = 80˚F

—

—

59

5A

Pressure release *5

Discharge temperature release *5

[0010] = Pressure release controlled

[0001] = Discharge temperature release controlledOut

door

uni

t ind

ivid

ual d

ata

2 *4

×10

×10

×10

×1

×1

×1

×1

×1

rps

rps

rps

mode

˚F

˚F

˚F

˚F

6F5F Outdoor unit capacity [0080] = 8 Ton×10 Ton

—58 Heating/cooling recovery controlled *5 [0010] = Heating recovery controlled[0001] = Cooling recovery controlled

0: Normal1: Recovery controlled

—5B [0100] = U2 outdoor unit release controlled

0: Normal1: Release controlledFollower unit release

(U2 outdoor units) *5

*1 Only a part of indoor unit types is installed with the discharge temperature sensor. This temperature is notdisplayed for other types.

*2 When the units are connected to a group, data of the header indoor unit only can be displayed.*3 The first digit of an CODE No. indicates the outdoor unit number.*4 The upper digit of an CODE No. –4 indicates the outdoor unit number.

1∗, 5∗ ... U1 outdoor unit (Header unit)2∗, 6∗ ... U2 outdoor unit (Follower unit)

*5 Only the CODE No. 5* of U1 outdoor unit (Header unit) is displayed.

– 129 –

9. TROUBLESHOOTING9-1. Overview(1) Before engaging in troubleshooting

(a) Applicable modelsAll Super Heat Recovery Multi (SHRM-i) models.(Indoor units: MMO-APOOO, Outdoor units: MMY-MAPOOO4F∗)

(b) Tools and measuring devices required• Screwdrivers (Philips, flat head), spanners, long-nose pliers, nipper, pin to push reset switch, etc.• Multimeter, thermometer, pressure gauge, etc.

(c) Things to check prior to troubleshooting (behaviors listed below are normal)

CAUTIONThe cooling performance may decline considerably when total operating capacity of cooling indoor units isless than 38 kBtu/h while ambient temperature is below 32°F (0°C).

(2) Troubleshooting procedureWhen a fault occurs, proceed with troubleshooting in accordance with the procedure shown below.

NOTE

Rather than a genuine fault (see the List of Check Codes below), the problem could have been caused by amicroprocessor malfunction attributable to a poor quality of the power source or an external noise. Check forpossible noise sources, and shield the remote controller wiring and signal wires as necessary.

NO. Behavior Possible cause

1

A compressor would not start • Could it just be the 3-minute delay period (3 minutes after compressor shutdown)?• Could it just be the air conditioner having gone thermo OFF?• Could it just be the air conditioner operating in fan mode or put on the timer?• Could it just be the system going through initial communication?• Could it just be within range of use temperature? When outside temperature is 69.8˚F (21˚C) or higher, heating operation is not available. When outside temperature is 14˚F (–10˚C) or lower, cooling operation is not available.

2 An indoor fan would not start • Could it just be cold air discharge prevention control, which is part of heating?

3An outdoor fan would not start or wouldchange speed for no reason

• Could it just be cooling operation under low outside temperature conditions?• Could it just be defrosting operation?

4 An indoor fan would not stop • Could it just be the elimination of residual heat being performed as part of the air conditioner shutdown process after heating operation?

5 The air conditioner would not respond to astart/stop command from a remote controller

• Could it just be the air conditioner operation under external or remote control?

Fault

Any other fault

Investigate check code displayed on interface P.C. board of header unit

Investigate check code displayed on interface P.C. board of relevant follower unit

Check fault site or faulty part

"E28" error

– 130 –

IPDU: Intelligent Power Drive Unit (Inverter P.C. board) : Lighting, : Flashing, : Goes offALT.: Flashing is alternately when there are two flashing LEDSIM: Simultaneous flashing when there are two flashing LED* Indicator light display of the receiving unit may be different from those in the following table. (Wall type 3 series, etc.)

Check code Display of receiving unit

Typical fault site

Indoor-remote controller periodiccommunication error

E03— —Communication from remote controller or networkadaptor has been lost (so has central controlcommunication).

Description of errorOutdoor 7-segment display TCC-LINK

central controlor main remote

controllerdisplay

Indicator light block

Sub-code FlashReadyTimerOperation

Periodic communication between indoor headerand follower units cannot be maintained.

E18— —Error in periodic communicationbetween indoor header andfollower unit

Indoor-outdoor periodiccommunication error

E04— — Signals are not being received from outdoor unit.

Duplicated indoor group headerunit

L03 SIM— — There is more than one header unit in group.

Indoor heat exchangertemperature sensor (TCJ) error

Heat exchanger temperature sensor (TCJ) hasbeen open/short-circuited.

F01 ALT— —

Indoor heat exchangertemperature sensor (TC2) error

Heat exchanger temperature sensor (TC2) hasbeen open/short-circuited.

F02 ALT— —

Indoor external error input(interlock)

Unit shutdown has been caused by external errorinput (CN80).

L30 SIML30 Detected indoor unit No.

Indoor heat exchangertemperature sensor (TC1) error

Heat exchanger temperature sensor (TC1) hasbeen open/short-circuited.

F03 ALT— —

Ambient temperature sensor(TA) error

Ambient temperature sensor (TA) has been open/short-circuited.

F10 ALT— —

Outdoor unit model unmatchederror

In case that outdoor unit model is different(Not corresponded)

L02 SIML02 —

Indoor EEPROM is abnormal (some other error maybe detected).

Connection of group control cableto stand-alone indoor unit

There is at least one stand-alone indoor unit towhich group control cable is connected.

L07 SIM— —

F29 SIM P.C. board or other indoor error— —

Address setting has not been performed for one ormore indoor units (also detected at outdoor unit end).

L08 SIM Indoor group address not setL08 —

Indoor AC fan error is detected (activation of fanmotor thermal relay).

P01 ALT Indoor AC fan error— —

Indoor DC fan error (e.g. overcurrent or lock-up) isdetected.

P12 ALT Indoor DC fan error— —

Follower unit cannot be operated due to header unitalarm (E03/L03/L07/L08).

P31 ALT Other indoor unit error— —

Capacity setting has not been performed for indoorunit.

L09 SIM Indoor capacity not set— —

Indoor inter-MCU communicationerror

MCU communication between main controller andmotor microcontroller is faulty.

E10— —

Duplicated indoor addressE08 E08Duplicated indoor address Indoor unit detects address identical to its own.

Indoor overflow errorP10 P10 ALTDetected indoor unit No. Float switch has been activated.

Duplicated central control address— L20 SIM— There is duplication in central control address setting.

9-2. Troubleshooting MethodThe remote controllers (main remote controller and central control remote controller) and the interface P.C.board of an outdoor unit are provided with an LCD display (remote controller) or a 7-segment display (outdoorinterface P.C. board) to display operational status. Using this self-diagnosis feature, the fault site/faulty part maybe identified in the event of a fault by following the method described below.

The list below summarizes check codes detected by various devices. Analyze the check code according towhere it is displayed and work out the nature of the fault in consultation with the list.• When investigating a fault on the basis of a display provided on the indoor remote controller or TCC-LINK

central control remote controller - See the “TCC-LINK remote control or main remote controller display”section of the list.

• When investigating a fault on the basis of a display provided on an outdoor unit - See the “Outdoor 7-segment display” section of the list.

• When investigating a fault on the basis of a wireless remote controller-controlled indoor unit - See the “Lightsensor indicator light block” section of the list.

List of Check Codes (Indoor Unit)(Error detected by indoor unit)

– 131 –

(Error detected by main remote controller)

(Error detected by central control device)

NOTE

The same error, e.g. a communication error, may result in the display of different check codes depending onthe device that detects it.Moreover, check codes detected by the main remote controller/central control device do not necessarily havea direct impact on air conditioner operation.


Typical fault site

E01— —Signals cannot be received from indoor unit;master remote controller has not been set(including two remote controller control).

No master remote controller,faulty remote controllercommunication (reception)

Description of errorOutdoor 7-segment display

Mainremote

controller



Faulty remote controllercommunication (transmission)

E02— — Signals cannot be transmitted to indoor unit.

Duplicated master remotecontroller— E09—

Both remote controllers have been set as masterremote controller in two remote controller control(alarm and shutdown for header unit and continued operation for follower unit)


Typical fault site

C05— —Central control device is unable to transmitsignal due to duplication of central controldevice.

Faulty central controlcommunication (transmission)

Description of errorOutdoor 7-segment display

TCC-LINKcentralcontrol


Multiple network adapters are connected toremote controller communication line.

Multiple network adapters


Faulty central controlcommunication (reception)

No indication (when mainremote controller also in use)

C06 Central control device is unable to receive signal.— —

Blanket alarm for general-purposedevice control interface

As per alarm unit(see above)

Device connected to general-purpose device controlinterface for TCC-LINK is faulty.

C12— — —

Group control follower unit error Group follower unit is faulty (unit No. and above detail[∗∗∗] displayed on main remote controller)

P30— —

—— —

– 132 –

IPDU: Intelligent Power Drive Unit (Inverter P.C. board) : Lighting, : Flashing, : Goes offALT.: Flashing is alternately when there are two flashing LEDSIM: Simultaneous flashing when there are two flashing LED* Indicator light display of the receiving unit may be different from those in the following table. (Wall type 3 series, etc.)


Typical fault site Description of errorOutdoor 7-segment display TCC-LINK


controllerdisplay



Indoor-outdoor communicationcircuit error

E06 Dropping out of indoor unitE06Indoor unit initially communicating normally fails toreturn signal (reduction in number of indoor unitsconnected).

Number of indoor unitsfrom which signal isreceived normally

(E04)—E07Signal cannot be transmitted to indoor units(→ indoor units left without communication fromoutdoor unit).

Too many indoor unitsconnected/overloading

E16E16Combined capacity of indoor units is too large(more than 125% of combined capacity of outdoorunits).

00: Overloading01: Number of units connected

E26E26 Dropping out of outdoor unitFollower outdoor unit initially communicating normallyfails to do so (reduction in number of follower outdoorunits connected).

Outdoor header unit detects fault relating tofollower outdoor unit (detail displayed on followeroutdoor unit).

Address of outdoor unitfrom which signal is notreceived normally

Error in number of outdoorheader units

There is no or more than one outdoor header unitin one refrigerant line.

E19E1900: No header unit02: Two or more header units

01: TE102: TE2

Outdoor heat exchanger temperature sensors(TE1, TE2) have been open/short-circuited.

F06 ALTF06Outdoor heat exchangertemperature sensor (TE1, TE2)error

E28 Outdoor follower unit errorDetected outdoor unit No.E28

There is no communication between IPDUs (P.C.boards) in inverter box.Outdoor I/F board errorWhen power supply was turned on within 30 seconds(before electric discharge of capacitor) after powersupply was reset

E31 IPDU communication errorSub MCU communication errorE31

E20E20

01: Connection of outdoor unit from other refrigerant line02: Connection of indoor unit from other refrigerant line

Connection to otherrefrigerant line foundduring automatic addresssetting

Indoor unit from other refrigerant line is detectedwhile indoor automatic address setting is in progress.

More than one indoor unit is assigned sameaddress (also detected at indoor unit end).

(E08)E08 Duplicated indoor addressDuplicated indoor address

Indoor unit fails to communicate while automaticaddress setting for indoor units is in progress.

Indoor unit not found duringautomatic address setting

E15—E15

Outdoor discharge temperature sensor (TD1) hasbeen open/short-circuited.

Outdoor dischargetemperature sensor (TD1) error

F04 ALT—F04

Outdoor discharge temperature sensor (TD2) hasbeen open/short-circuited.

Outdoor dischargetemperature sensor (TD2) error

F05 ALT—F05

Outdoor liquid temperature sensor (TL) has beenopen/short-circuited.

Outdoor liquid temperaturesensor (TL) error

F07 ALT—F07

Outdoor outside air temperature sensor (TO) hasbeen open/short-circuited.

Outdoor outside air temperaturesensor (TO) error

F08 ALT—F08

Outdoor-outdoor communicationtransmission error

E23 Signal cannot be transmitted to other outdoor units.—E23

Duplicated follower outdooraddress

There is duplication in outdoor addresses setmanually.

E25—E25

• Indoor automatic address setting is started whileautomatic address setting for equipment in otherrefrigerant line is in progress.• Outdoor automatic address setting is started while automatic address setting for indoor units is in progress.

E12E12 Automatic address startingerror

01: Indoor-outdoor communication02: Outdoor-outdoor communication

0102030405060708090A0B0C0D0E0F80

A3-IPDU

Circle ( ): Faulty IPDU

FanIPDU

SubMCU1 2 3

List of Check Codes (Outdoor Unit)(Errors detected by SHRM-i outdoor interface - typicalexamples)If “HELLO” is displayed on the outdoor 7-segment for1 minute or more, turn off the power supply once andthen turn on the power supply again after passage of30 seconds or more. When the same symptomappears, it is considered there is a possibility of I/Fboard error.

– 133 –




controllerdisplay



F24 High pressure sensor (Pd) errorALT—F24Output voltage of high pressure sensor (Pd) is zeroor provides abnormal readings when compressorshave been turned off.

H05 Outdoor discharge temperaturesensor (TD1) connection error

—H05Wiring/installation error or detachment of outdoordischarge temperature sensor (TD1) has beendetected.





P07 Temperature sensor built into IGBT (TH) detectsoverheating.

P07 ALT Heat sink overheating error01: Compressor 102: Compressor 203: Compressor 3

01: Compressor 102: Compressor 203: Compressor 3

L04 SIM Duplicated outdoor refrigerant lineaddress

—L04Identical refrigerant line address has been assignedto outdoor units belonging to different refrigerantpiping systems.

P05 ALT Inverter DC voltage (Vdc) errorMG-CTT error

P05Open phase is detected when power is turned on.Inverter DC voltage is too high (overvoltage) or toolow (undervoltage).

L06 SIM More than one indoor unit has been set up aspriority indoor unit.

Duplicated priority indoor unit (asdisplayed on indoor unit other thanpriority indoor unit)

Outdoor EEPROM is faulty (alarm and shutdown forheader unit and continued operation for follower unit)

F31F31 SIM Outdoor EEPROM error—

Temperature sensor for oil level detection (TK1-5)detects abnormally low oil level.

H07H07 Low oil level protection—

Address setting has not been performed for one ormore indoor units (also detected at indoor end).

(L08) SIML08 Indoor group address not set—

Outdoor unit capacity has not been set (after P.C.board replacement).

L10 SIML10 Outdoor capacity not set—

Cooling/heating cycle error resulting from pipingerror is detected.

Cooling/heating selection uniterror

L18 SIML18 —

Too many outdoor unitsconnected

L28 More than 3 outdoor units have been connected.SIML28 —

There are insufficient number of IPDUs(P.C. boards) in inverter box.

L29 Error in number of IPDUsSIML29

Old model outdoor unit (prior to 3 series) has beenconnected.

Outdoor model incompatibilityerror

L17 SIML17 —

Indoor unit has been shut down for external errorinput in one refrigerant line (detected by indoor unit).

Indoor external error input(interlock)

L30Detected indoor unit No. SIML30

— — ——L31 Other IPDU error

Open phase/power failure00: Open phase detected

More than one indoor unit has been set up as priorityindoor unit.

Duplicated priority indoor unit (asdisplayed on priority indoor unit)Number of priority indoor

units (check code L05 orL06 depending onindividual unit)

L05 SIM

L06

Indoor unit has been shutdown in one refrigerant linedue to detection of overflow (detected by indoor unit).

(P10) ALTP10 Indoor unit overflowIndoor unit No. detected

Outdoor discharge temperature sensor (TD1) hasdetected abnormally high temperature.

Outdoor discharge (TD1)temperature error

P03— ALTP03

Temperature sensor for oil level detection (TK1-5)has been open/short-circuited.

Error in temperature sensor foroil level detection (TK1-5)

01: TK1 sensor error02: TK2 sensor error03: TK3 sensor error04: TK4 sensor error05: TK5 sensor error

H08H08

No temperature change is detected by temperaturesensor for oil level detection (TK1-5) despitecompressor having been started.

01: TK1 oil circuit error02: TK2 oil circuit error03: TK3 oil circuit error04: TK4 oil circuit error05: TK5 oil circuit error

H16 Oil level detection circuit errorH16

Low pressure (Ps) sensor detects abnormally lowoperating pressure.

Activation of low-pressureprotection

H06H06 —

F23F23 ALT Output voltage of low pressure sensor (Ps) is zero.Low pressure sensor (Ps) error—

1O

O

O

O

O

2

OO

OO

3

OOOO

A3-IPDU FanIPDU

010203040506070809

OO

1

O

O

O

2OO

OO

3

OOOO

A3-IPDU FanIPDU

0A0B0C0D0E0F

Circle (O):Faulty IPDU

OOOOOO

MG-CTT: Magnet contactor

Wiring error in outdoor temperature sensors (TE1, TL)has been detected.

Outdoor temperature sensor(TE1, TL) wiring error

F15 ALT—F15

Wiring error in outdoor pressure sensors (Pd, Ps)has been detected.

Outdoor pressure sensor (Pd, Ps)wiring error

F16 ALT—F16

Outdoor suction temperature sensor (TS1, TS2) hasbeen open/short-circuited.

Outdoor suction temperaturesensor (TS1, TS2) error

01: TS102: TS2

F12 ALTF12

Outdoor discharge temperaturesensor (TD3) error

F22 Outdoor discharge temperature sensor (TD3) hasbeen open/short-circuited.

ALT—F22

– 134 –

(Errors detected by IPDU featuring in SMMS-i standard outdoor unit - typical examples)

NOTE

The above check codes are examples only, and different check codes may be displayed depending on theoutdoor unit configuration (e.g. a Super Modular multi system). For details, see the service manual for theoutdoor unit.




controllerdisplay



P15 Gas leak detectionALT01: TS condition02: TD condition

P15Outdoor suction temperature sensor (TS1) detectssustained and repeated high temperatures thatexceed standard value.

State of refrigerant cycle circuit indicates liquidbackflow operation.

Outdoor liquid backflow detectionerror

P13— ALTP13

Outdoor discharge temperature sensor (TD2) detectsabnormally high temperature.


P17— ALTP17

Outdoor discharge temperature sensor (TD3) detectsabnormally high temperature.


P18— ALTP18

Abnormality in refrigerating cycle is detectedduring heating operation.

P19Outdoor unit No. detected 4-way valve reversing errorALTP19

High pressure (Pd) sensor detects high pressurethat exceeds standard value.

Activation of high-pressureprotection

P20 ALT—P20




controllerdisplay



F13 Error in temperature sensor builtinto indoor IGBT (TH)

ALTF1301: Compressor 102: Compressor 203: Compressor 3

P26 Activation of G-Tr (IGBT)short-circuit protection

ALTP26Short-circuit protection for compressor motordriver circuit components is activated (momentaryovercurrent).

01: Compressor 102: Compressor 203: Compressor 3

P29 Compressor position detectioncircuit error

Compressor motor position detection error isdetected.

ALTP2901: Compressor 102: Compressor 203: Compressor 3

H01 Inverter current (Idc) detection circuit detectsovercurrent.

Temperature sensor built into indoor IGBT (TH)has been open/short-circuited.

Compressor breakdownH0101: Compressor 102: Compressor 203: Compressor 3

H03 Abnormal current is detected while invertercompressor is turned off.

Current detection circuit errorH0301: Compressor 102: Compressor 203: Compressor 3

P07 Temperature sensor built into IGBT (TH) detectsoverheating.

Heat sink overheating errorP0701: Compressor 102: Compressor 203: Compressor 3

P22

ALT

ALT Outdoor fan IPDU error Outdoor fan IPDU detects error.P22

0∗: IGBT circuit1∗: Position detection circuit error3∗: Motor lockup error4∗: Motor current detectionC∗: TH sensor errorD∗: TH sensor errorE∗: Inverter DC voltage error(outdoor fan)Note: Although letters 0 to F appear at locations indicated by “∗”, please ignore them.

H02 Compressor error (lockup) Compressor lockup is detectedH0201: Compressor 102: Compressor 203: Compressor 3

P04 ALT Activation of high-pressure SW High-pressure SW is activated.P0401: Compressor 102: Compressor 203: Compressor 3

– 135 –

SET

TIME

TIMER SET

TESTFILTERRESET

TEMP.

CL

FAN

SAVE

SWING/FIX

VENT

MODE

ON / OFF

UNIT LOUVER

13321

2

Normal display is restored.

Steps to follow

9-3. Troubleshooting Based on Information Displayed on Remote ControllerUsing main remote controller (RBC-AMT32UL)

(1) Checking and testingWhen a fault occurs to an air conditioner, a checkcode and indoor unit No. are displayed on thedisplay window of the remote controller.Check codes are only displayed while the airconditioner is in operation.If the display has already disappeared, accesserror history by following the procedure describedbelow.

(2) Error historyThe error history access procedure is described below (up to four errors stored in memory).Error history can be accessed regardless of whether the air conditioner is in operation or shut down.

<Procedure> To be performed when system at rest

1 Invoke the SERVICE CHECK mode by pushing the + buttons simultaneously and holding for at least4 seconds.The letters “ SERVICE CHECK” light up, and the checkcode “01” is displayed, indicating the error history. This isaccompanied by the indoor unit No. to which the error historyis related and a check code.

2 To check other error history items, push the button to select another check code.

Check code “01” (latest) → Check code “04” (oldest)Note: Error history contains four items.

3 When the button is pushed, normal display isrestored.

REQUIREMENT

Do not push the button as it would erase the whole error history of the indoor unit.

How to read displayed information

Check codeIndoor unit No. in which fault has occurred

0 1 2 3 4 5 6 7 8 9 A b C d E F H J L P

<7-segment display symbols>

<Corresponding alphanumerical letters>

– 136 –

Using indoor unit indicators (receiving unit light block) (wireless type)To identify the check code, check the 7-segment display on the header unit. To check for check codes notdisplayed on the 7-segment display, consult the “List of Check Codes (Indoor Unit)” in “9-2. TroubleshootingMethod”.

: Goes off : Lighting : Blinking (0.5 seconds)


Light block

Timer

All lights out

Ready

Power turned off or error in wiring between receiving and indoor units—

E01 Faulty receptionError or poor contact in wiringbetween receiving and indoor units

Setting error

Receiving unit

Operation

Timer ReadyOperation

Blinking


Blinking

Check code Cause of fault

P01 Indoor AC fan errorTimer ReadyOperation

Alternate blinking

P10 Indoor overflow error

P04 Activation of outdoor high-pressure SW

P15 Gas leak detection - insufficient refrigerant charging

P17 Outdoor discharge (TD2) temperature error

P18 Outdoor discharge (TD3) temperature error

P19 Outdoor 4-way valve reversing error

P20 Activation of high-pressure protection

P22 Outdoor fan IPDU error

P26 Outdoor G-Tr short-circuit error

P29 Compressor position detection circuit error

P31 Shutdown of other indoor unit in group due to fault (group follower unit error)

P07 Outdoor heat sink overheating error - Poor cooling of electrical component (IGBT) of outdoor unit

P05Open phase/power failureInverter DC voltage (Vdc) errorMG-CTT error

P12 Indoor DC fan error

E04 Error or poor contact in wiring between indoor and outdoor units(loss of indoor-outdoor communication)

P13 Outdoor liquid backflow detection error

E02 Faulty transmission

E03 Loss of communication

E08 Duplicated indoor unit No. (address)

E09 Duplicated master remote controller

E10 Indoor unit inter-MCU communication error

E12 Automatic address starting error

E07 Faulty transmission in indoor-outdoor communication

E15 Indoor unit not found during automatic address setting

E16 Too many indoor units connected/overloading

E19 Error in number of outdoor header units

E20 Detection of refrigerant piping communication error during automatic address setting

E23 Faulty transmission in outdoor-outdoor communication

E25 Duplicated follower outdoor address

E26 Faulty reception in outdoor-outdoor communication, dropping out of outdoor unit

E28 Outdoor follower unit error

E31 IPDU communication error, Sub MCU communication error

E06 Faulty reception in indoor-outdoor communication (dropping out of indoor unit)

E18 Error or poor contact in wiring between indoor units, indoor power turned off

P03 Outdoor discharge (TD1) temperature errorTimer ReadyOperation

Alternate blinking

– 137 –

Light block Check code Cause of fault

F02 Heat exchanger temperature sensor (TC2) error

F05 Discharge temperature sensor (TD2) error

F06 Heat exchanger temperature sensor (TE1, TE2) error

H02 Compressor lockup Outdoor unit compressor-related errors

Protective shutdown of outdoor unit

F07 Liquid temperature sensor (TL) error Outdoor unit temperature sensor errors

Outdoor unit pressure sensor errors

F08 Outside air temperature sensor (TO) error

F12 Suction temperature sensor (TS1) error

F13 Heat sink sensor (TH) error

H03 Current detection circuit error

F15 Wiring error in heat exchanger sensor (TE1) and liquid temperature sensor (TL)Outdoor unit temperature sensor wiring/installation error

F16 Wiring error in outdoor high pressure sensor (Pd) and low pressure sensor (Ps)Outdoor pressure sensor wiring error

H05 Wiring/installation error or detachment of outdoor discharge temperature sensor (TD1)

F22 Outdoor discharge temperature sensor (TD3) error

F23 Low pressure sensor (Ps) error

F24 High pressure sensor (Pd) error

H06 Abnormal drop in low-pressure sensor (Ps) reading

H07 Abnormal drop in oil level

H08 Error in temperature sensor for oil level detection circuit (TK1, TK2, TK3, TK4 or TK5)


H16 Oil level detection circuit error - Error in outdoor unit TK1, TK2, TK3, TK4 or TK5 circuit

L03 Duplicated indoor group header unit

L05 Duplicated priority indoor unit (as displayed on priority indoor unit)

L06 Duplicated priority indoor unit (as displayed on indoor unit other than priority indoor unit)

L07 Connection of group control cable to stand-alone indoor unit

L08 Indoor group address not set

L09 Indoor capacity not set


F10 Ambient temperature sensor (TA) error

F03 Heat exchanger temperature sensor (TC1) error Indoor unit temperature sensor errors

F01 Heat exchanger temperature sensor (TCJ) errorTimer ReadyOperation

Alternate blinking

F04 Discharge temperature sensor (TD1) errorTimer ReadyOperation

Alternate blinking

L02 Outdoor unit model unmatched errorTimer ReadyOperation

Synchronized blinking

L10 Outdoor capacity not set

L17 Outdoor model incompatibility error

L18 Flow selector units error

L20 Duplicated central control address

L28 Too many outdoor units connected

L29 Error in number of IPDUs

L30 Indoor external interlock error

L04 Duplicated outdoor refrigerant line addressTimer ReadyOperation


H01 Compressor breakdownTimer ReadyOperation

Blinking

F29 Fault in indoor EEPROM



F31 Outdoor EEPROM error



– 138 –

Other (indications not involving check code)

Light block Check code Cause of fault

— Test run in progress



—Setting incompatibility(automatic cooling/heating setting for model incapable of it and heating setting for cooling-only model)


Alternate blinking

– 139 –

9-4. Check Codes Displayed on Remote Controller and SMMS-i Outdoor Unit (7-Segment Display on I/F Board) and Locations to Be Checked

For other types of outdoor units, refer to their own service manuals.

Check codeLocation

ofdetection

System statusDescriptionError detection

condition(s) Check items (locations)Outdoor 7-segment displayMainremote

controller Checkcode

Sub-code

Remotecontroller

——E01

Stop ofcorrespondingunit

Communication betweenindoor P.C. board and remotecontroller is disrupted.

• Check remote controller inter-unit tie cable (A/B).• Check for broken wire or connector bad contact.• Check indoor power supply.• Check for defect in indoor P.C. board.• Check remote controller address settings (when two remote controllers are in use).• Check remote controller P.C. board.

Indoor-remotecontrollercommunicationerror(detected at remote controller end)

Remotecontroller——E02


Signal cannot be transmittedfrom remote controller toindoor unit.

• Check internal transmission circuit of remote controller. --- Replace remote controller as necessary.

Remote controllertransmission error

Indoor unit

——E03


There is no communicationfrom remote controller(including wireless) or network adaptor.

• Check remote controller and network adaptor wiring.

Indoor-remotecontrollercommunicationerror(detected at indoor end)

Indoorunit

— —E04


Indoor unit is not receivingsignal from outdoor unit.

• Check order in which power was turned on for indoor and outdoor units.• Check indoor address setting.• Check indoor-outdoor tie cable.• Check outdoor termination resistance setting (SW30,Bit 2).

Indoor-outdoorcommunicationcircuit error(detected at indoor end)

Indoor unitI/F

Duplicatedindoor address

E08E08

All stop More than one indoor unit isassigned same address.

• Check indoor addresses.• Check for any change made to remote controller connection (group/individual) since indoor address setting.

Duplicatedindoor address

I/F

E07— —

All stop Signal cannot be transmittedfrom outdoor to indoor unitsfor 30 seconds continuously.

• Check outdoor termination resistance setting (SW30, Bit 2).• Check connection of indoor-outdoor communication circuit.

Indoor-outdoorcommunicationcircuit error(detected atoutdoor end)

Indoor unit

— —E10


Communication cannot beestablished/maintained uponturning on of power or duringcommunication.

• Check for defect in indoor P.C. board

Indoor inter-MCUcommunicationerror

I/F01:Indoor-outdoorcommunication02:Outdooroutdoorcommunication

E12E12

All stop • Indoor automatic address setting is started while automatic address setting for equipment in other refrigerant line is in progress.• Outdoor automatic address setting is started while automatic address setting for indoor units is in progress.

• Perform automatic address setting again after disconnecting communication cable to that refrigerant line.

Automaticaddress startingerror

Remotecontroller

— —E09


In two remote controllerconfiguration (includingwireless), both controllers areset up as master. (Headerindoor unit is shut down withalarm, while follower indoorunits continue operating.)

• Check remote controller settings.• Check remote controller P.C. boards.

Duplicated masterremote controller

I/FNo. of indoorunits fromwhich signal isreceivednormally

E06E06

All stop Indoor unit initiallycommunicating normally failsto return signal for specifiedlength of time.

• Check power supply to indoor unit. (Is power turned on?)• Check connection of indoor-outdoor communication cable.• Check connection of communication connectors on indoor P.C. board.• Check connection of communication connectors on outdoor P.C. board.• Check for defect in indoor P.C. board.• Check for defect in outdoor P.C. board (I/F).

Dropping out ofindoor unit

– 140 –

Check codeLocation

ofdetection




Sub-code

I/F

E15 —E15

All stop Indoor unit cannot bedetected after indoorautomatic address setting isstarted.

• Check connection of indoor-outdoor communication line.• Check for error in indoor power supply system.• Check for noise from other devices.• Check for power failure.• Check for defect in indoor P.C. board.

Indoor unit notfound duringautomaticaddress setting

I/F00:Overloading01-:No. of unitsconnected

E16E16

All stop • Combined capacity of indoor units exceeds 125% of combined capacity of outdoor units.Note: If this code comes up after backup setting for outdoor unit failure is performed, perform “No overloading detected” setting.<“No overloading detected” setting method>Turn on SW09/Bit 2 on I/FP.C. board of outdoor headerunit.• More than 40 indoor units are connected.

• Check capacities of indoor units connected.• Check combined HP capacities of indoor units.• Check HP capacity settings of outdoor units.• Check No. of indoor units connected.• Check for defect in outdoor P.C. board (I/F).

Too manyindoor unitsconnected

00:No header unit02:Two or moreheader unitsE19E19

• There is more than one outdoor header unit in one line.• There is no outdoor header unit in one line.

Outdoor header unit isoutdoor unit to which indoor-outdoor tie cable (U1,U2) isconnected.• Check connection of indoor- outdoorcommunication line.• Check for defect in outdoor P.C. board (I/F).

Error in numberof outdoorheader units

All stopI/F

01:Connection ofoutdoor unitfrom other line02:Connection ofindoor unit fromother line

E20E20

Equipment from other line isfound to have been connectedwhen indoor automatic addresssetting is in progress.

Disconnect inter-line tie cablein accordance with automaticaddress setting methodexplained in “Address setting”section.

Connection toother line foundduring automaticaddress setting

All stopI/F

E23 —E23

Signal cannot be transmittedto other outdoor units for atleast 30 seconds continuously.

• Check power supply to outdoor units. (Is power turned on?)• Check connection of tie cables between outdoor units for bad contact or broken wire.• Check communication connectors on outdoor P.C. boards.• Check for defect in outdoor P.C. board (I/F).• Check termination resistance setting for communication between outdoor units.

Outdooroutdoorcommunicationtransmission error

All stopI/F

E25 —E25There is duplication in outdooraddresses set manually.

Note: Do not set outdoor addresses manually.

Duplicatedfollower outdooraddress

All stopI/F

E26E26

Outdoor unit initiallycommunicating normally failsto return signal for specifiedlength of time.

• Backup setting is being used for outdoor units.• Check power supply to outdoor unit. (Is power turned on?)• Check connection of tie cables between outdoor units for bad contact or broken wire.• Check communication connectors on outdoor P.C. boards.• Check for defect in outdoor P.C. board (I/F).• Check termination resistance setting for communication between outdoor units.

Dropping out ofoutdoor unit

All stopI/FAddress ofoutdoor unit fromwhich signal isnot receivednormally

Indoor unit

— —E18


Periodic communicationbetween indoor header andfollower units cannot bemaintained.

• Check remote controller wiring.• Check indoor power supply wiring.• Check P.C. boards of indoor• units.

Error incommunicationbetween indoorheader andfollower units

– 141 –

Check codeLocation

ofdetection




Sub-code

I/FDetectedoutdoor unitNo.

E28E28

All stop Outdoor header unit receiveserror code from outdoorfollower unit.

• Check check code displayed on outdoor follower unit.<Convenient functions>If SW04 is pushed and held forat least 1 second while [E28] isdisplayed on the 7-segmentdisplay of outdoor header unit,the fan of the outdoor unit thathas been shut down due to anerror comes on.If SW04 and SW05 are pushdsimultaneously, the fans ofnormal outdoor units come on.To stop the fan or fans, pushSW05 on its own.

Outdoorfollower uniterror

Indoor unit

— —F01


Sensor resistance is infinity orzero (open/short circuit).

• Check connection of TCJ sensor connector and wiring.• Check resistance characteristics of TCJ sensor.• Check for defect in indoor P.C. board.

Indoor TCJsensor error

Indoor unit

— —F02


Sensor resistance is infinityor zero (open/short circuit).

• Check connection of TC2 sensor connector and wiring.• Check resistance characteristics of TC2 sensor.• Check for defect in indoor P.C. board.

Indoor TC2sensor error

Indoor unit

— —F03



• Check connection of TC1 sensor connector and wiring.• Check resistance characteristics of TC1 sensor.• Check for defect in indoor P.C. board.

Indoor TC1sensor error

I/F

F04 —F04

All stop Sensor resistance is infinityor zero (open/short circuit).

• Check connection of TD1 sensor connector.• Check resistance characteristics of TD1 sensor.• Check for defect in outdoor P.C. board (I/F).

TD1 sensor error

I/F

F05 —F05



TD2 sensor error

I/F01:TE1 sensor error02:TE2 sensor errorF06F06


• Check connection of TE1/ TE2 sensor connectors.• Check resistance characteristics of TE1/TE2 sensors.• Check for defect in outdoor P.C. board (I/F).

TE1/TE2 sensorerror

I/F

F07 —F07


• Check connection of TL sensor connector.• Check resistance characteristics of TL sensor.• Check for defect in outdoor P.C. board (I/F).

TL sensor error

I/F

Symbol Osignifies site ofIPDU error.

E31E31

All stop Communication is disruptedbetween IPDUs (P.C. boards)in inverter box.

• Check wiring and connectors involved in communication between IPDU-I/F P.C. board for bad contact or broken wire.• Check for defect in outdoor P.C. board (I/F, A3-IPDU or Fan IPDU).• Check for external noise.

IPDUcommunicationerrorSub MCUcommunicationerror

80 All stop Communication between MCUand Sub MCU stopped.

• Operation of power supply reset (OFF for 60 seconds or more)• Outdoor I/F PC board error check

Communicationerror between MCUand Sub MCU

1O

O

O

O

O

O

O

O

2

OO

OO

OO

OO

3

OOOO

OOOO

A3-IPDU FanIPDU

0102030405060708090A0B0C0D0E0F80

OOOOOOOO

SubMCU

O

– 142 –

Check codeLocation

ofdetection




Sub-code

I/F

F08 —F08


• Check connection of TO sensor connector.• Check resistance characteristics of TO sensor.• Check for defect in outdoor P.C. board (I/F).

TO sensor error

Indoor unit

— —F10



• Check connection of TA sensor connector and wiring.• Check resistance characteristics of TA sensor.• Check for defect in indoor P.C. board.

Indoor TA sensorerror

Indoor unit

— —F11



• Check connection of TF sensor connector and wiring.• Check resistance characteristics of TF sensor.• Check for defect in indoor P.C. board.

Indoor TF sensorerror

I/F

F12 —F12


• Check connection of TS1, TS2 sensor connector.• Check resistance characteristics of TS1, TS2 sensor.• Check for defect in outdoor P.C. board (I/F).

01:TS1 sensor error02:TS2 sensor error

I/F

F15 —F15

All stop During compressor operation inHEAT mode, TE1 continuouslyprovides temperature readinghigher than indicated by TL byat least specified margin for 3minutes or more.

• Check installation of TE1 and TL sensors.• Check resistance characteristics of TE1 and TL sensors.• Check for outdoor P.C. board (I/F) error.

Outdoortemperaturesensor wiringerror (TE1, TL)

I/F

F16 —F16

All stop Readings of high-pressurePd sensor and lowpressurePs sensor are switched.Output voltages of both sensorsare zero.

• Check connection of high- pressure Pd sensor connector.• Check connection of low- pressure Ps sensor connector.• Check for defect in pressure sensors Pd and Ps.• Check for error in outdoor P.C. board (I/F).• Check for deficiency in compressive output of compressor.

Outdoorpressuresensor wiringerror (Pd, Ps)

I/F

F22 —F22

All stop Sensor resistance is infinityor zero. (open/short circuit)


TD3 sensor error

I/F

F23 —F23

All stop Output voltage of Pssensor is zero.

• Check for connection error involving Ps sensor and Pd sensor connectors.• Check connection of Ps sensor connector.• Check for defect in Ps sensor.• Check for deficiency in compressive output of compressor.• Check for defect in 4-way valve.• Check for defect in outdoor P.C. board (I/F).• Check for defect in SV4, SV5 circuit.

Ps sensor error

IPDU01:Compressor 1 side02:Compressor 2 side03:Compressor 3 side

F13F13


• Defect in IGBT built-in temperature sensor → Replace A3-IPDU P.C. board.

TH sensorerror

I/F

F24 —F24

All stop Output voltage of Pd sensor iszero (sensor open-circuited).Pd > 602 psi (4.15 MPa) despitecompressor having been turnedoff.

Pd sensor error

Indoor unit— —F29


Indoor P.C. boarddoes not operate normally.

• Check for defect in indoor P.C. board (faulty EEPROM)

Other indoor error

– 143 –

Check codeLocation

ofdetection




Sub-code

I/F

F31 —F31

All stop *1 Outdoor P.C. board(I/F) does notoperate normally.

• Check power supply voltage.• Check power supply noise.• Check for defect in outdoor P.C. board (I/F).

OutdoorEEPROM error


H01H01

All stop Inverter currentdetection circuitdetects overcurrentand shuts systemdown.

• Check power supply voltage. (FT9 : 208/230V ± 10%, FT6 : 460V ± 10%).• Check for defect in compressor.• Check for possible cause of abnormal overloading.• Check for defect in outdoor P.C. board (A3-IPDU).

Compressorbreakdown


H02H02

All stop Overcurrent isdetected severalseconds after startupof invertercompressor.

• Check for defect in compressor.• Check power supply voltage. (FT9 : 208/230V ± 10%, FT6 : 460V ± 10%).• Check compressor system wiring, particularly for open phase.• Check connection of connectors/ terminals on A3-IPDU P.C. board.• Check conductivity of case heater. (Check for refrigerant entrapment inside compressor.)• Check for defect in outdoor P.C. board (A3-IPDU).• Check outdoor MG-CTT.

Compressorerror (lockup)MG-CTT error


H03H03

All stop Current flow of atleast specifiedmagnitude isdetected despiteinverter compressorhaving been shutturned off.

• Check current detection circuit wiring.• Check defect in outdoor P.C. board (A3-IPDU).

Current detectioncircuit error

I/F

H05 —H05

All stop Dischargetemperature ofcompressor 1 (TD1)does not increasedespite compressorbeing in operation.

• Check installation of TD1, TK1, TK2, TK3, TK4, TK5 sensor.• Check connection of TD1, TK1, TK2, TK3, TK4, TK5 sensor connector and wiring.• Check resistance characteristics of TD1 sensor.• Check for defect in outdoor P.C. board (I/F).

TD1 sensormiswiring(incomplete insertion)

I/F

H06 —H06

*1 Total shutdown in case of header unit Continued operation in case of follower unit


All stop Low-pressure Pssensor detectsoperating pressurelower than 0.02MPa.

• Check service valves to confirm full opening (both discharge gas side, suction gas side and liquid sides).• Check outdoor PMVs for clogging (PMV1, 2).• Check for defect in SV2 or SV4 circuits.• Check for defect in lowpressure Ps sensor.• Check indoor filter for clogging.• Check valve opening status of indoor PMV.• Check refrigerant piping for clogging.• Check operation of outdoor fan (during In all heating, collective operation).• Check for insufficiency in refrigerant quantity.• Check clogging in circuit at sub heat exchanger liquid side . (PMV4, Checked valve)• Check 4-way valve error (Reversal error)• Check miswiring of discharge/suction gas main piping.• Check Cool/Heat FS unit.• Check mispiping of discharge/suction gas piping to Cool/Heat FS unit.• Check piping between Cool/Heat FS unit and room. • Check miswiring of SVD/SVS valve, and mis mounting of coil.• Check opened status of SVS valve.• Check SV14 circuit error

Activation oflow-pressureprotection

– 144 –

Check codeLocation

ofdetection




Sub-code

I/FDetectedoutdoor unit No.Display ofheader unit only

H07H07

All stop Operating compressor detectscontinuous state of low oil levelfor about 2 hours.

<All outdoor units incorresponding line to bechecked>• Check balance pipe service valve to confirm full opening.• Check connection and installation of TK1, TK2, TK3, TK4, and TK5 sensors.• Check resistance characteristics of TK1, TK2, TK3, TK4, and TK5 sensors.• Check for gas or oil leak in same line.• Check for refrigerant entrapment inside compressor casing and check for liquid back.• Check SV3A, SV3B, SV3C, SV3D, SV3E, and SV3F valves for defect.• Check oil return circuit of oil separator for clogging.• Check oil equalizing circuit for clogging.• Check SV6 circuit leakage.

Low oil levelprotection

I/F01: TK1 sensor error02: TK2 sensor error03: TK3 sensor error04: TK4 sensor error05: TK5 sensor error

H08H08

H15 —H15


• Check connection of TK1 sensor connector.• Check resistance characteristics of TK1 sensor.• Check for defect in outdoor P.C. board (I/F).

Error intemperaturesensor for oil leveldetection

I/F All stop Discharge temperature of (TD2)does not increase despitecompressor 2 being inoperation.

• Check installation of TD2, TK1, TK2, TK3 sensor.• Check connection of TD2, TK4, TK5 sensor connector and wiring.• Check resistance characteristics of TD2 sensor.• Check for defect in outdoor P.C. board (I/F).










– 145 –

Check codeLocation

ofdetection




Sub-code

I/F01: TK1 oil circuit error02: TK2 oil circuit error03: TK3 oil circuit error04: TK4 oil circuit error05: TK5 oil circuit error

H16H16

H25 —H25

All stop No temperaturechange is detectedby TK1 despitecompressor 1 havingbeen started.

• Check for disconnection of TK1 sensor.• Check resistance characteristics of TK1 sensor.• Check for connection error involving TD1, TD2, TD3, TK1, TK2, TK3, TK4, and TK5 sensors• Check for faulty operation in SV3E or SV3F valve.• Check for clogging in oil equalizing circuit capillary and faulty operation in check valve.• Check for refrigerant entrapment inside compressor.

No temperaturechange is detectedby TK2 despitecompressor 2 havingbeen started.


No temperaturechange is detectedby TK3 despitecompressor 3 havingbeen started.


No temperaturechange is detectedby TK4 despitecompressor havingbeen started.

• Check for disconnection of TK4 sensor.• Check resistance characteristics of TK4 sensor.• Check for connection error involving TD1, TD2, TD3,TK1, TK2, TK3, TK4, and TK5 sensors• Check for faulty operation in SV3E or SV3F valve.• Check for clogging in oil equalizing circuit capillary and faulty operation in check valve.• Check for refrigerant entrapment inside compressor.

No temperaturechange is detectedby TK5 despitecompressor havingbeen started.Or difference fromother TK sensorchanges withinspecified range onlyfor over the specifiedperiod.

• Check for disconnection of TK5 sensor.• Check resistance characteristics of TK5 sensor.• Check for connection error involving TD1, TD2, TD3, TK1, TK2, TK3, TK4, and TK5 sensors• Check for faulty operation in SV3E valve.• Check for clogging in oil equalizing circuit capillary and faulty operation in check valve.• Check for refrigerant entrapment inside compressor.

Oil leveldetectioncircuit error

I/F All stop Dischargetemperature (TD3)does not increasedespite compressor3 being in operation.

• Check installation of TD3, TK1, TK2, TK3 , TK4, TK5 sensor.• Check connection of TD3, TK1, TK2, TK3 , TK4, TK5 sensor connector and wiring.• Check resistance characteristics of TD3 sensor.• Check for defect in outdoor P.C. board (I/F).


– 146 –

Check codeLocation

ofdetection




Sub-code

L02 —L02

Indoor unit Stop ofcorrespondingunit

In case of different outdoor unit. • Check outdoor unit model.Outdoor unitsmodeldisagreementerror

— —L03


There is more than one headerunit in group.

• Check indoor addresses.• Check for any change made to remote controller connection (group/individual) since indoor address setting.

Duplicatedindoor headerunit

L04 —L04

I/F All stop There is duplication in lineaddress setting for outdoorunits belonging to differentrefrigerant piping systems.

• Check line addresses.Duplicatedoutdoor lineaddress

— —L05

I/F All stop More than one indoor unit hasbeen set up as priority indoorunit.

• Check display on priority indoor unit.

Duplicated priorityindoor unit(as displayed onpriority indoor unit)

— —L07

Indoorunit


There is at least one stand-alone indoor unit to which groupcontrol cable is connected.

• Check indoor addresses.Connection ofgroup controlcable to stand-alone indoor unit

L08 —L08

Indoorunit


Address setting has not beenperformed for indoor units.

• Check indoor addresses.Note: This code is displayed when power is turned on for the first time after installation.

Indoor group /addresses notset

L10 —L10

I/F All stop Jumper wire provided on P.C.board for servicing I/F P.C.board has not been removed asrequired for given model.

Check model setting of P.C.board for servicing outdoor I/FP.C. board.

Outdoor capacitynot set

— —L20Indoor unit All stop There is duplication in central

control address setting.• Check central control addresses.

Duplicatedcentral controladdress

L28 —L28

L29L29

I/F All stop There are more than 2outdoor units.

• Check No. of outdoor units connected (Only up to 2 units per system allowed).• Check communication lines between outdoor units.• Check for defect in outdoor P.C. board (I/F).

Too manyoutdoor unitsconnected

L30L30

Indoor unitDetected indooraddress


• Signal is present at external error input terminal (CN80) for 1 minute.

When external device isconnected to CN80connector:1) Check for defect in external device.2) Check for defect in indoor P.C. board.When external device is notconnected to CN80connector:1) Check for defect in indoor P.C. board.

External interlockof indoor unit

I/F All stop Insufficient number of IPDUsare detected when power isturned on.

• Check model setting of P.C. board for servicing outdoor I/F P.C. board.• Check connection of UART communication connector.• Check A3-IPDU, fan IPDU, and I/F P.C. board for defect.

Error in No. ofIPDUs

— —L09Indoor unit Stop of

correspondingunit

Capacity setting has not beenperformed for indoor unit.

Set indoor capacity. (DN = 11)Indoor capacitynot set

L06L06

I/FNo. of priorityindoor units

All stop More than one indoor unithave been set up as priorityindoor unit.

• Check displays on priority indoor unit and outdoor unit.

Duplicated priorityindoor unit(as displayed onindoor unit otherthan priorityindoor unit)

Symbol Osignifies site ofIPDU error.

1O

O

O

O

O

O

O

O

2

OO

OO

OO

OO

3

OOOO

OOOO

A3-IPDU FanIPDU

0102030405060708090A0B0C0D0E0F

OOOOOOOO

– 147 –

Check codeLocation

ofdetection




Sub-code

L31 —— I/F Continuedoperation

There is part failurein P.C. board (I/F).

Check outdoor P.C. board (I/F).Extended IC error

P03

—

P03

I/F All stop Dischargetemperature (TD1)exceeds239˚F (115˚C).

• Check outdoor service valves (discharge gas side, suction gas side, liquid side) to confirm full opening.• Check outdoor PMVs (PMV1, 2, 4) for clogging.• Check resistance characteristics of TD1 sensor.• Check for insufficiency in refrigerant quantity.• Check for defect in 4-way valve.• Check for leakage of SV4 circuit.• Check SV4 circuit (wiring or installation error in SV41, SV42 or SV43).• Check SV5 circuit leakage.• Check SV6 circuit leakage. (Capillary clogging, valve operation error)• Check mispiping of discharge/suction gas main pipes.• Check Cool/Heat FS unit. SVD valve, SVS valve leakage check (SVDD valve, SVSS leakage check) Mispiping of FS unit connecting pipe (suction gas/discharge gas) Check connection of connector between FS unit and indoor unit. Check miswiting between SVS and SVD valve.

DischargetemperatureTD1 error

P04P04

IPDU01: Compressor 1 side02: Compressor 2 side03: Compressor 3 side

All stop High-pressure SW isactivated.

• Check connection of highpressure SW connector.• Check for defect in Pd pressure sensor.• Check outdoor service valves (discharge gas side, suction gas side, liquid side) to confirm full opening.• Check for defect in outdoor fan.• Check for defect in outdoor fan motor.• Check outdoor PMVs (PMV1, 2, 4) for clogging.• Check indoor/outdoor heat exchangers for clogging.• Check for short-circuiting of outdoor suction/discharge air flows.• Check 4-way valve error.• Check SV11 circuit. (Valve operation error)• Check checked valve of discharge gas pipe for error.• Check SV2 circuit for clogging.• Check for defect in outdoor P.C. board (I/F).• Check for error in indoor fan system (possible cause of air flow reduction).• Check opening status of indoor PMV.• Check indoor-outdoor communication line for wiring error.• Check for faulty operation of check valve in discharge pipe convergent section.• Check gas balancing SV4 valve circuit.• Check SV5 valve circuit.• Check for refrigerant overcharging.• Check mispiping of discharging gas/ suction gas main pipes.• Check circuit clogging at liquid side of sub heat exchanger. (PMV4, checked valve)• Check FS unit. Check SVD valve clogging and operation error. Check wiring inside of FS unit. (SVD/SVS coil miswiring, etc.) Check wiring between FS unit and indoor unit. (Mistaken wiring, wire disconnection, wiring forgotten)

Activation of high-pressure SW

— —P01Indoor unit Stop of

correspondingunit

• Check the lock of fan motor (AC fan).• Check wiring.

Indoor fan motorerror

– 148 –

Check codeLocation

ofdetection




Sub-code

I/F00:

P05P05

All stop • Open phase is detected when power is turned on.• Inverter DC voltage is too high (overvoltage) or too low (undervoltage).

• Check for defect in outdoor P.C. board (I/F).• Check wiring of outdoor power supply.

Detection of openphase/phasesequence

Indoor unitDetected indooraddress

P10P10

All stop


• Float switch operates.• Float switch circuit is open- circuited or disconnected at connector.

• Check float switch connector.• Check operation of drain pump.• Check drain pump circuit.• Check drain pipe for clogging.• Check for defect in indoor P.C. board.

Indoor overflowerror

Indoor unit

— —P12


• Motor speed measurements continuously deviate from target value.• Overcurrent protection is activated.

• Check connection of fan connector and wiring.• Check for defect in fan motor.• Check for defect in indoor P.C. board.• Check impact of outside air treatment (OA).

Indoor fan motorerror

I/F

P13 —P13

All stop <During cooling operation>When system is in coolingoperation, high pressure isdetected in follower unit thathas been turned off.<During heating operation>When system is in heatingoperation, outdoor PMV 1 or2 continuously registersopening of 100p or less whileunder SH control.

• Check full-close operation of outdoor PMV (1, 2, 4).• Check for defect in Pd or Ps sensor.• Check gas balancing circuit (SV2) for clogging.• Check balance pipe.• Check SV3B circuit for clogging.• Check defect in outdoor P.C. board (I/F).• Check capillary of oil separator oil return circuit for clogging.• Check for leakage of check valve in discharge pipe convergent section.• Check 4-way valve error.• Check TS1, TS2 sensors. (TS1, TS2 miswiring and mismounting)

Outdoor liquidbackflowdetection error

IPDUI/F

01: Compressor 1 side02: Compressor 2 side03: Compressor 3 side

P07P07

All stop Temperature sensor built intoIGBT (TH) is overheated.

• Check power supply voltage.• Check outdoor fan system error.• Check heat sink cooling duct for clogging.• Check IGBT and heat sink for thermal performance for faulty installation. (e.g. mounting screws and thermal conductivity)• Check for defect in A3-IPDU. (faulty IGBT built-in temperature sensor (TH))

Heat sinkoverheating error

01: Compressor 1 side02: Compressor 2 side03: Compressor 3 side

Inverter DCvoltage (Vdc) error(compressor)MG-CTT error

– 149 –

Check codeLocation

ofdetection




Sub-code

I/F01: TS condition

P15P15

P17 —P17

All stop Protective shutdown due tosustained suctiontemperature at or abovejudgment criterionfor at least 10 minutes isrepeated four times or more.<TS error judgment criterion>In cooling operation: 140˚F (60˚C)In heating operation: 104˚F (40˚C)

• Check for insufficiency in refrigerant quantity.• Check outdoor service valves (discharge gas side, suction gas side, liquid side) to confirm full opening.• Check PMVs (PMV1, 2, 4) for clogging.• Check resistance characteristics of TS1 sensor.• Check for defect in 4-way valve.• Check SV4 circuit for leakage• Check SV5 circuit leakage.• Check mispiping of discharge gas/suction gas main pipes.• Check Cool/Heat FS unit. Check SVD valve, SVS valve leakage. (Check SVDD valve, SVSS valve leakage.) Connecting piping to FS unit Mispiping of (discharge gas/ suction gas)

Gasleakdetection(TS1 condition)

I/F All stop Discharge temperature (TD2)exceeds 239˚F (115˚C).

• Check outdoor service valves (discharge gas side, suction gas side, liquid side) to confirm full opening.• Check outdoor PMVs (PMV1, 2, 4) for clogging.• Check resistance characteristics of TD2 sensor.• Check for defect in 4-way valve.• Check SV4 circuit for leakage.• Check SV4 circuit (for wiring or installation error involving SV41, SV42 and SV43).• Check SV5 valve circuit leakage.• Check SV6 circuit (Clogging, valve operation error)• Check mispiping of discharge gas/suction gas main pipes.• Check Cool/Heat FS unit. Check SVD valve, SVS valve leakage. (Check SVDD valve, SVSS valve leakage.) Connecting piping to FS unit Mispiping of (discharge gas/ suction gas) Check wiring between FS unit and indoor unit, connection of connectors Check miswiring of SVS/SVD valve.

Dischargetemperature TD2error

I/F02: TD condition All stop Protective shutdown due tosustained dischargetemperature (TD1, TD2 or TD3)at or above 226˚F (108˚C) for atleast 10 minutes is repeatedfour times or more.

• Check for insufficiency in refrigerant quantity.• Check PMVs (PMV 1, 2, 4) for clogging.• Check resistance characteristics of TD1, TD2 and TD3 sensors.• Check indoor filter for clogging.• Check piping for clogging.• Check SV4 circuit (for leakage or coil installation error).• Check mispiping of discharge gas/suction gas main pipes.• Check Cool/Heat FS unit. Check SVD valve, SVS valve leakage. (Check SVDD valve, SVSS valve leakage.) Connecting piping to FS unit Mispiping of (discharge gas/ suction gas) Check wiring and connection of connectors between FS unit and indoor unit. Check miswiring of SVS/SVD valves.

Gas leakdetection(TD condition)

– 150 –

Check codeLocation

ofdetection




Sub-code

P18 —P18

I/F All stop Discharge temperature (TD3)exceeds 239˚F (115˚C).

• Check outdoor service valves (discharge gas side, suction gas side, liquid side) to confirm full opening.• Check outdoor PMVs (PMV1, 2, 4) for clogging.• Check resistance characteristics of TD3 sensor.• Check for defect in 4-way valve.• Check SV4 circuit for leakage.• Check SV4 circuit (for wiring or installation error involving SV41, SV42 and SV43).• Check SV5 valve circuit leakage.• Check SV6 circuit. (Clogging, valve operation error)• Check mispiping of discharge gas/suction gas main pipes.• Check Cool/Heat FS unit. Check SVD valve, SVS valve leakage. (Check SVDD valve, SVSS valve leakage.) Connecting piping to FS unit Mispiping of (discharge gas/ suction gas) Check wiring between FS unit and indoor unit, connection of connectors. Check miswiring of SVS/SVD valve.

Dischargetemperature TD3error

P19P19

I/F All stop Abnormal refrigerating cycledata is collected during allheating operation.

• It is necessary to check all the outdoor units in the identical refrigerant line.• Check for defect in main body of 4-way valve.• Check for coil defect in 4-way valve and loose connection of its connector.• Check clogging in 4-way valve capillary• Check resistance characteristics of TS1 and TE1 sensors.• Check output voltage characteristics of Pd and Ps pressure sensors.• Check for wiring error involving TE1 and TL sensors.• Check Cool/Heat FS unit. Check SVD valve, SVS valve leakage. (Check SVDD valve, AVSS valve leakage.) Connecting piping of FS unit Mispiping of (Discharge gas/ suction gas) SV14 valve body error (in heating operation) SV 14valve coil error, Connector connection check (in heating operation)

4-way valvereversing error

Detectedoutdoor unit No.* Display of header unit only

– 151 –

Check codeLocation

ofdetection

Systemstatus

DescriptionError detection



Sub-code

P20 —P20

I/F All stop Pd sensor detects pressureequal to or greater than3.6MPa.

• Check for defect in Pd pressure sensor.• Check service valves (discharge gas side, suction gas side, liquid side) to confirm full opening.• Check for defect in outdoor fan.• Check for defect in outdoor fan motor.• Check outdoor PMVs (PMV1, 2, 4) for clogging.• Check indoor/outdoor heat exchangers for clogging.• Check for short-circuiting of outdoor suction/discharge air flows.• Check SV2 circuit for clogging.• Check 4-way valve operation error.• Check for defect in outdoor P.C. board (I/F).• Check for defect in indoor fan system (possible cause of air flow reduction).• Check opening status of indoor PMV.• Check indoor-outdoor communication line for wiring error.• Check for faulty operation of check valve in discharge pipe convergent section.• Check gas balancing SV4 valve circuit.• Check mispiping of suction gas/ discharge gas main pipes.• Check discharge gas pipe checked valve operation error.• Check SV11 valve circuit. (Clogging, OFF at one side only)• Check clogging of circuit at sub heat exchanger liquid side. (Miswiring, disconnection, wiring forgotten)• Check Cool/Heat FS unit. Clogging of SVD valve, operation error check Wiring check in FS unit (SVD/SVS coil miswiring, etc.) Wiring check between FS unit and inside of room (Miswiring, disconnection, wiring forgotten)• Check SV5 valve circuit.• Check for refrigerant overcharging.

Activation ofhigh-pressureprotection

P22P22

IPDU All stop (Sub code: 0∗)Fan IPDU overcurrentprotective circuitA status that the current flowsover the fixed amount when thefan was activated was detected.

• Fan motor check• Check for fan IPDU board error

All stop (Sub code: 1∗)Fan IPDU position detectivecircuit The position detection was notnormally performed.

• Fan motor check• Connection check for fan motor connectors• Check for fan IPDU board error

All stop (Sub code: 3∗)External elements by gust,obstacles, etc.Velocity estimate was notcorrectly performed.


All stop (Sub code: 4∗)Fan IPDU overcurrentprotective circuit A status that the current flowsover the fixed amount when thefan operated was detected.

• Fan motor check• Connection check for fan motor connectors• Check for fan IPDU board error

All stop (Sub code: C∗)Temperature of TH sensor overthe fixed value was detectedduring operation of the fan.


All stop (Sub code: D∗)The resistance value of thesensor is infinite. Or 0 (at Open / Short)

• Check for fan IPDU board error

All stop (Sub code: E∗)Protection for fan IPDU DCvoltageDC voltage detected over thefixed value or below the fixedvalue.

• Power supply voltage check• Check for fan IPDU board error • Connection check for fan IPDU connectors

Outdoor fanIPDU error

0∗: IGBT circuit1∗: Position detection circuit error3∗: Motor lockup error4∗: Motor current detectionC∗: TH sensor temperature errorD∗: TH sensor errorE∗: Inverter DC voltage error (outdoor fan)Note: Although letters 0 to F appear at locations indicated by “∗”, please ignore them.

– 152 –

Check codeLocation

ofdetection




Sub-code

P26P26


All stop Overcurrent is momentarilydetected during startup ofcompressor.

• Check connector connection and wiring on A3-IPDU P.C. board.• Check for defect in compressor (layer shortcircuit).• Check for defect in outdoor P.C. board (A3-IPDU).

G-TR short-circuitprotection error

P29P29


All stop Position detection is not goingon normally.

• Check wiring and connector connection.• Check for compressor layer short-circuit.• Check for defect in A3-IPDU P.C. board.

Compressorposition detectioncircuit error

— —P31


There is error in other indoorunit in group, resulting indetection of E07/L07/L03/L08.

• Check indoor P.C. board.Other indoor error(group follower unit error)

Errors Detected by TCC-LINK Central Control Device

Check codeLocation

ofdetection




Sub-code

—C05

TCC-LINK Continuedoperation

Central control device is unableto transmit signal.

• Check for defect in central control device.• Check for defect in central control communication line.• Check termination resistance setting.

TCC-LINK centralcontrol devicetransmission error

—C12

General-purposedevice I/F

Continuedoperation

Error signal is input to controlinterface for general-purposedevices.

• Check error input.Blanket alarmfor general-purpose devicecontrol interface

P30

TCC-LINKDiffers according to natureof alarm-causing error

Continuedoperation

Error occurs in follower unitunder group control.([P30] is displayed on centralcontrol remote controller.)

• Check check code of unit that has generated alarm.

Group controlfollower unit error

(L20 displayed.) Continuedoperation

There is duplication in centralcontrol addresses.

• Check address settings.Duplicatedcentral controladdress

—C06

Continuedoperation

Central control device is unableto receive signal.

• Check for defect in central control device.• Check for defect in central control communication line.• Check termination resistance setting.• Check power supply for devices at other end of central control communication line.• Check defect in P.C. boards of devices at other end of central control communication line.

TCC-LINKcentral controldevice receptionerror

– 153 –

Points to Note When Servicing Compressor(1) When checking the outputs of inverters, remove the wiring from all the compressors.

How to Check Inverter Output(1) Turn off the power supply.(2) Remove compressor leads from the IPDU P.C. board (A3-IPDU). (Be sure to remove all the leads.)(3) Turn on the power supply and start cooling or heating operation.

Be careful not to make simultaneous contact with two or more faston connectors for compressor leads or afaston connector and some other object (e.g. the unit cabinet).

(4) Check the output voltage across each pair of inverter-side (CN703, 704, 705).If the result is unsatisfactory according to the judgment criteria given in the table below, replace the IPDUP.C. board.

* When connecting the compressor leads back to the compressor terminals after checking the output, checkthe faston connectors thoroughly to ensure that they are not crooked. If there is any loose connector, tightenit with a pair of pliers, etc. before connecting the lead.

How to Check Resistance of Compressor Winding(1) Turn off the power supply.(2) Remove compressor leads from the compressors.(3) With each compressor, check the phase-to-phase winding resistances and winding-to-outdoor cabinet

resistance using a multimeter.• Ground fault?→ It is normal if the winding-to-outdoor cabinet resistance is 20MΩ or more.

• Inter-winding short circuit?→ It is normal if the phase-to-phase resistances are in the 0.6-1.0Ω range. (Use a digital multimeter.)

How to Check Outdoor Fan Motor(1) Turn off the power supply.(2) Remove fan motor leads from the IPDU P.C. board for the outdoor fan (CN703-CN705).(3) Rotate the fan by hand. If the fan does not turn, the fan motor is faulty (locked up). Replace the fan motor.

If the fan turns, measure the phase-to-phase winding resistances using a multimeter. It is normal if themeasurements are in the 1.14-1.70Ω range. (Use a digital multimeter.)

No.

1

2

3

Measured leads

Red-White

White-Black

Black-Red

Criterion

FT9 : 180 to 300 V / FT6 : 400 to 650 V

FT9 : 180 to 300 V / FT6 : 400 to 650 V

FT9 : 180 to 300 V / FT6 : 400 to 650 V

– 154 –

9-5. Diagnosis procedure for each check code

No

No

Yes

No

No

No

No

[E01

] C

heck

cod

eC

ause

Che

ck c

ode

nam

eC

heck

cod

eC

ause

Che

ck c

ode

nam

e

Che

ck c

ode

Cau

seC

heck

cod

e na

me

* T

he c

heck

cod

e is

not

indi

cate

d on

the

cent

ral c

ontr

ol d

evic

e or

the

7-se

gmen

t ind

icat

ion

on th

e ou

tdoo

r un

it.

Yes

Yes

Yes

Yes

Yes

Yes

No

[E02

]

[E03

]

Com

mun

icat

ion

erro

r be

twee

n th

ein

door

uni

t and

rem

ote

cont

rolle

r(d

etec

ted

on th

e re

mot

eco

ntro

ller)

Sig

nal t

rans

mis

sion

err

or o

n th

ere

mot

e co

ntro

ller

Com

mun

icat

ion

erro

r be

twee

n th

ein

door

uni

t and

rem

ote

cont

rolle

r(d

etec

ted

on th

e in

door

uni

t)

1. R

emot

e co

ntro

ller

inte

r-un

it w

ire e

rror

2. In

door

pow

er e

rror

3. In

door

P.C

. boa

rd e

rror

4. R

emot

e co

ntro

ller

addr

ess

setu

p er

ror

5. R

emot

e co

ntro

ller

P.C

. boa

rd e

rror

Una

ble

to s

end

sign

als

to in

door

uni

ts

No

com

mun

icat

ion

from

the

rem

ote

cont

rolle

r/co

mm

unic

atio

n ad

apte

r

Is th

ein

ter-

unit

wire

of

rem

ote

cont

rolle

rs (

A/B

)no

rmal

?

The

com

mun

icat

ion

wiri

ngbe

twee

n th

e re

mot

eco

ntro

ller

and

indo

or u

nits

is c

onne

cted

pro

perly

.

Is th

ere

nodi

scon

nect

ion

orco

nnec

tor

cont

act e

rror

on

harn

ess

out o

f ter

min

albl

ock

of in

door

unit?

Is a

gro

up c

ontr

olop

erat

ion?

Is p

ower

of e

ach

indo

orun

it tu

rned

on?

Is p

ower

app

lied

to r

emot

e co

ntro

ller?

AB

term

inal

s: A

ppro

x.D

C18

V

Is s

etup

of t

wo

rem

ote

cont

rolle

rsw

ithou

t hea

der

rem

ote

cont

rolle

r?

Cor

rect

inte

r-un

it ca

ble

ofre

mot

e co

ntro

ller.

Con

nect

the

wiri

ng p

rope

rly.

The

tran

smis

sion

circ

uit i

n th

ere

mot

e co

ntro

ller

mal

func

tions

.

Rep

lace

the

rem

ote

cont

rolle

r.

Cor

rect

con

nect

or c

onne

ctio

nan

d ch

eck

circ

uit w

ir ing

.

Che

ck p

ower

con

nect

ion

stat

us o

f ind

oor

unit.

(TurTT

n on

pow

er a

gain

.)

Che

ck in

door

P.C

.boa

rd.

Def

ect →

Rep

lace

Che

ck r

emot

e co

ntro

ller

P.C

.bo

ard.

Def

ect →

Rep

lace

Cha

nge

one

to h

eade

r/ot

her

tofo

llow

er. (

Rem

ote

cont

rolle

rad

dres

s co

nnec

tor)

The

err

or is

det

ecte

d w

hen

the

indo

or u

nit c

anno

t rec

eive

the

sign

al fr

om th

e w

ired

rem

ote

cont

rolle

r.C

heck

the

com

mun

icat

ion

wiri

ng fr

om th

e re

mot

e co

ntro

ller

A a

nd B

.T

he c

heck

cod

e [E

03] i

s no

t ind

icat

ed o

n th

e re

mot

e co

ntro

ller

as it

s co

mm

unic

atio

n is

dow

n.H

owev

er, t

he c

ode

is in

dica

ted

on th

e co

mpl

iant

man

ager

of T

CC

-LIN

K.

– 155 –

No

Yes

Yes

Yes Yes Yes

Yes

YesNo

No No

No

No

No

[E04

]

No

No

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No

No

[E06

]

Sub

-cod

e: N

o. o

f ind

oor

units

whi

ch r

ecei

ved

sign

als

norm

ally

Che

ck c

ode

Che

ck c

ode

Che

ck c

ode

nam

eC

heck

cod

e na

me

Cau

seC

ause

Dec

reas

ed n

umbe

r of

indo

or u

nits

Indo

or/O

utdo

or c

omm

unic

atio

nci

rcui

t err

or(D

etec

ted

at in

door

sid

e)

1. C

omm

unic

atio

n lin

es (

U1,

U2)

con

nect

ion

erro

r

betw

een

indo

or a

nd o

utdo

or2.

Com

mun

icat

ion

conn

ecto

r's c

onne

ctio

n er

ror

on

indo

or u

nit,

erro

r on

P.C

. boa

rd3.

Com

mun

icat

ion

conn

ecto

r's c

onne

ctio

n er

ror

on

outd

oor

unit ,

err

or o

n I/F

boa

rd4.

Pow

er s

uppl

y of

indo

or u

nit (

Is p

ower

turn

ed o

n?)

1. P

ower

of o

utdo

or u

nit w

as fi

rstly

turn

ed o

n.2.

Con

nect

ion

erro

r of

com

mun

icat

ion

line

betw

een

in

door

and

out

door

3. E

nd te

rmin

al r

esis

tanc

e se

tup

erro

r on

c

omm

unic

atio

n be

twee

n in

door

and

out

door

4. A

ddre

ss s

etup

err

or

Is th

ere

nom

isw

iring

/dis

conn

ectio

non

com

mun

icat

ion

line

betw

een

indo

or a

ndou

tdoo

r?

Was

pow

er tu

rned

on

in o

rder

of i

ndoo

r un

it→

out

door

uni

t?

Is c

onne

ctio

n(U

1/U

2 te

rmin

als)

of

indo

or/o

utdo

or in

ter-

unit

wire

nor

mal

?

Is c

onne

ctor

conn

ectio

n fr

om U

1/U

2te

rmin

als

of in

door

/out

door

inte

r-un

it w

ireno

rmal

?

Is th

e en

d te

rmin

alre

sist

ance

set

up o

f out

door

unit

norm

al?

Is p

ower

app

lied

to fu

se(F

03)

on in

door

P.C

.bo

ard?

Is a

ddre

ss s

etup

cor

rect

?

Is th

ere

no n

oise

, etc

?

Is c

onne

ctio

nof

CN

40 c

onne

ctor

on

indo

or P

.C. b

oard

norm

al?

Is c

onne

ctio

n of

CN

01co

nnec

tor

on o

utdo

or I/

FP

.C. b

oard

nor

mal

?

Is p

ower

of i

ndoo

r un

ittu

rned

on?

Did

a p

ower

failu

reoc

cur?

Is th

ere

no n

oise

, etc

?

Cor

rect

com

mun

icat

ion

line.

Turn

on

pow

er a

gain

in o

rder

of in

door

uni

t → o

utdo

or u

nit.

Cor

rect

inte

r-un

it w

ire.

Cor

rect

con

nect

or c

onne

ctio

n.

Cor

rect

the

end

term

inal

resi

stan

ce s

etup

.

Set

up

addr

ess

agai

n.

Che

ck n

oise

, etc

, and

elim

inat

e it

if an

y.

Che

ck c

onne

ctio

n of

inte

r-un

itw

ire b

etw

een

indo

or a

nd o

utdo

oris

cor

rect

, and

then

con

nect

com

mun

icat

ion

line

conn

ecto

r on

indo

or P

.C. b

oard

(C

N40

) to

CN

44 (

EM

G).

Cor

rect

wiri

ng o

r co

nnec

tor.

Turn

on

pow

er o

f ind

oor u

nit.

Cle

ar th

e ch

eck

code

.

Che

ck n

oise

, etc

, and

elim

inat

eit

if an

y.

Che

ck in

door

P.C

. boa

rd.

Def

ect →

Rep

lace

Che

ck in

door

P.C

. boa

rd.

Def

ect →

Rep

lace

(NO

TE

)1.

Whe

n si

gnal

is n

ot s

ent f

or a

cer

tain

per

iod

from

the

indo

or u

nit w

hich

has

u

sed

to s

end

sign

als

norm

ally

, [E

06] i

s di

spla

yed.

For

det

ails

, ref

er to

"8-

5. T

roub

lesh

ootin

g in

Tes

t Ope

ratio

n ".

– 156 –

Yes

Yes

Yes

No

No

No

[E08

]

Sub

-cod

e: D

uplic

ated

indo

or a

ddre

ss

No

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

No

No

[E07

] C

ause

Cau

se

Indo

or/O

utdo

or c

omm

unic

atio

nci

rcui

t err

or(D

etec

ted

at o

utdo

or s

ide)

Dup

licat

ed in

door

add

ress

es1.

Indo

or/o

utdo

or c

omm

unic

atio

n en

d te

rmin

al

res

ista

nce

setu

p er

ror

2. In

door

/out

door

com

mun

icat

ion

conn

ectio

n er

ror

Indo

or a

ddre

sses

are

dup

licat

ed.

Is s

etup

of e

ndte

rmin

al r

esis

tanc

e of

outd

oor

unit

norm

al?

Is w

ire c

onne

ctio

n to

com

mun

icat

ion

line

norm

al?

Is n

ot c

omm

unic

atio

nlin

e co

nnec

ted

to th

edi

ffere

nt o

utdo

orun

it?

Is in

door

uni

t qua

ntity

conn

ecte

d to

out

door

unit

corr

ect?

Is in

ter-

unit

wire

(U1,

U2)

bet

wee

n in

door

and

outd

oor

shor

tcirc

uite

d?

Is c

onne

ctio

n of

inte

r-un

it w

ire b

etw

een

indo

or a

nd o

utdo

orco

rrec

t?

Is th

ere

no e

rror

on

pow

er w

ire to

out

door

unit?

Is th

ere

nois

e so

urce

?Is

F40

0 (f

use)

on

I/F P

.C.

boar

d op

ened

?

Cor

rect

set

up o

f end

term

inal

resi

stan

ce.

Cor

rect

wire

con

nect

ion.

Cor

rect

com

mun

icat

ion

line.

Set

up

indo

or a

ddre

ss a

gain

.

Cor

rect

com

mun

icat

ion

line.

Cor

rect

pow

er w

ire.

Tur

n on

pow

er to

sta

rt o

pera

tion.

Elim

inat

e no

ise.

Out

door

I/F

P.C

. boa

rd

failu

re →

Rep

lace

I/F P

.C. b

oard

failu

re* C

heck

con

duct

ion

with

test

er.

Cor

rect

sho

rt-c

ircui

t.

Usi

ng a

wire

d re

mot

e co

ntro

ller

(RB

C-A

MT

32U

L), c

heck

the

setu

p C

OD

E N

o.(D

N c

ode)

12,

13,

and

14.

Whe

n th

ere

is n

o ad

dres

s du

plic

atio

n, c

heck

to th

e fo

llow

ing

flow

char

t.

Che

ck c

ode

Che

ck c

ode

Che

ck c

ode

nam

eC

heck

cod

e na

me

– 157 –

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

[E0

9]

No

No

No

No

No

No

[E15

]

No

[E10

]

[E12

]

Sub

-cod

e: 0

1: C

omm

unic

atio

n be

twee

n in

door

and

out

door

02:

Com

mun

icat

ion

betw

een

outd

oor

units

No

Cau

se

Che

ck c

ode

Che

ck c

ode

Che

ck c

ode

Che

ck c

ode

nam

e

Che

ck c

ode

Che

ck c

ode

nam

e

Che

ck c

ode

nam

eC

heck

cod

e na

me

Cau

se

Cau

se

Cau

se

Dup

licat

ed h

eade

r re

mot

eco

ntro

ller

No

corr

espo

ndin

g in

door

uni

tdu

ring

auto

mat

ic a

ddre

ssS

etup

of h

eade

r re

mot

e co

ntro

ller

is

dupl

icat

ed.

Com

mun

icat

ion

erro

r be

twee

nin

door

MC

Us.

Aut

omat

ic a

ddre

ss s

tart

err

or

Indo

or P

.C. b

oard

err

or.

Are

two

rem

ote

cont

rolle

rs s

et u

p as

two

head

er r

emot

eco

ntro

llers

?

Is c

omm

unic

atio

nlin

e be

twee

n in

door

and

outd

oor

norm

al?

Is c

onne

ctio

n of

CN

40 c

onne

ctor

on

indo

or P

.C. b

oard

corr

ect?

Isco

nnec

tion

of C

N01

conn

ecto

r on

I/F P

.C. b

oard

of h

eade

r out

door

uni

tco

rrect

?

Is th

ere

any

conn

ectio

ner

ror

of p

ower

wire

?

Did

a p

ower

failu

reoc

cur?

Is th

ere

no n

oise

sou

rce?

Set

up

addr

ess

agai

n af

ter

rese

tting

pow

er s

uppl

y.

Is th

ere

any

trou

ble

onpo

wer

line

?

Are

U1,

U2,

U3,

and

U4

conn

ecto

rsco

nnec

ted?

Set

up

one

cont

rolle

r as

the

head

er a

ndth

e ot

her

follo

wer

.(R

emot

e co

ntro

ller

addr

ess

conn

ecto

r)

Cor

rect

com

mun

icat

ion

line.

Cor

rect

con

nect

ion

ofco

nnec

tor.

Cor

rect

con

nect

ion

ofco

nnec

tor.

Cor

rect

pow

er w

ire.

Set

up

addr

ess

agai

n af

ter

rese

tting

pow

er s

uppl

y.

Elim

inat

e no

ise.

Che

ck r

emot

e co

ntro

ller

P.C

. boa

rd.

Fai

lure

→ R

epla

ce C

heck

pow

er v

olta

ge. I

mpr

ove

the

line

cond

ition

. Elim

inat

e no

ise,

etc

.

Che

ck in

door

con

trol

P.C

. boa

rd.

Fai

lure

→ R

epla

ce

Dis

conn

ect c

onne

ctor

con

nect

ion

of U

1, U

2, U

3, a

nd U

4.T

urn

on p

ower

of o

utdo

or u

nit

agai

n.

1. S

tart

ing

auto

mat

ic a

ddre

ssin

g of

indo

or u

nits

d

urin

g au

tom

atic

add

ress

ing

in a

noth

er

ref

riger

ant l

ine.

(S

ub-c

ode:

01)

2. S

tart

ing

auto

mat

ic a

ddre

ssin

g of

out

door

uni

ts

dur

ing

auto

mat

ic a

ddre

ssin

g of

indo

or u

nits

(

Sub

-cod

e: 0

2)

1. C

omm

unic

atio

n lin

e co

nnec

tion

erro

r be

twee

n

ind

oor

and

outd

oor

2. In

door

pow

er s

yste

m e

rror

3. N

oise

from

sur

roun

ding

dev

ices

4. P

ower

failu

re5.

Indo

or P

.C. b

oard

err

or

Set

up

addr

ess

agai

n.(R

efer

to "

8-4-

3. A

ddre

ss S

etup

Pro

cedu

re "

.)

– 158 –

No

No No

NG

OK

No

[E16

]

Sub

-cod

e: 0

0 : C

apac

ity o

ver,

01-

: num

ber

of c

onne

cted

uni

ts

Cau

se

Num

ber/

capa

city

of c

onne

cted

indo

or u

nits

bey

ond

the

limit

1. T

here

are

40

or m

ore

conn

ecte

d in

door

uni

ts.

2. C

apac

ity o

ver

of to

tal c

onne

cted

indo

or u

nits

.3.

Inco

rrec

t set

up o

f ind

oor

units

' pow

er

Is b

acku

pop

erat

ion

of o

utdo

or u

nit

bein

g se

t up?

Is N

o. o

f con

nect

edin

door

uni

ts c

orre

ct?

Is s

etup

of i

ndoo

run

its' H

P c

orre

ct?

Is to

tal c

apac

ityof

con

nect

ed in

door

units

with

in 1

25%

?

For a

ser

vice

P.C

. boa

rd, c

heck

outd

oor H

P s

etup

.(S

et u

p ju

mpe

r 9, 1

0, 1

1,an

d 12

.)

Indo

or c

apac

ity o

ver

has

been

dete

cted

dur

ing

the

back

upop

erat

ion.

Per

form

set

up o

f no

dete

ctio

n fo

rca

paci

ty o

ver.

(*1

)

Exc

essi

ve in

door

uni

ts a

re

conn

ecte

d.

Cor

rect

mis

wiri

ng.

Cor

rect

HP

set

up.

Set

cap

acity

of c

onne

cted

indo

or

units

with

in 1

25%

of o

utdo

or u

nits

.

Che

ck o

utdo

or in

terf

ace

P.C

. boa

rd.

(*1)

To

deac

tivat

e th

e ca

paci

ty-o

ver

dete

ctio

n

Tur

n S

W09

Bit

2 on

I/F

P.C

. boa

rd o

f hea

der

outd

oor

unit

to O

N.

(Usu

ally

OF

F)

Set

up

outd

oor

HP

.(R

efer

"14

P.C

. BO

AR

DE

XC

HA

NG

E P

RO

CE

DU

RE

S "

.)

YesYes

Yes

Yes

[E18

]

Che

ck c

ode

nam

eC

heck

cod

e na

me

Che

ck c

ode

Che

ck c

ode

Cau

se

Com

mun

icat

ion

erro

r be

twee

nin

door

hea

der

and

follo

wer

Reg

ular

com

mun

icat

ion

betw

een

indo

or h

eade

ran

d fo

llow

er is

una

vaila

ble.

No

Yes

Yes

Yes

Yes

No

No

No

Che

ck in

door

add

ress

.

Cor

rect

indo

or a

ddre

ss.

Are

rem

ote

cont

rolle

r int

er-u

nit w

ires

(A/B

) nor

mal

?

Is th

ere

any

disc

onne

ctio

n of

conn

ecto

r or

wiri

ng fr

omte

rmin

al b

lock

of

indo

or u

nit?

Is g

roup

cont

rol o

pera

tion

exec

uted

?

Are

pow

ers

of a

ll in

door

units

turn

ed o

n?

Cor

rect

rem

ote

cont

rolle

rin

ter-

unit

wire

.

Cor

rect

con

nect

ion

ofco

nnec

tor.

Che

ck c

ircui

t wire

.

Che

ck p

ower

con

nect

ion

stat

us o

f ind

oor

unit.

(T

urn

on th

e po

wer

aga

in.)

Che

ck in

door

P.C

. boa

rd.

Fai

lure

→ R

epla

ce

– 159 –

Sub

-cod

e: 0

0: N

o he

ader

uni

t 02:

Tw

o or

mor

e he

ader

uni

ts

No

Yes

Yes

Are

not

com

mun

icat

ion

lines

(U1,

U2)

bet

wee

n in

door

and

outd

oor

conn

ecte

dto

mul

tiple

out

door

units

?

No

If th

e ou

tdoo

r po

wer

is tu

rned

on

ahea

d, th

e ch

eck

code

[E19

:00]

is d

ispl

ayed

unt

il th

e in

door

pow

er is

turn

ed o

n.H

owev

er it

is n

ot a

n er

ror.

Whe

n th

e in

door

pow

er w

ill b

e tu

rned

on,

the

chec

k co

de [E

19:0

0] w

ill b

e au

tom

atic

ally

disa

ppea

red.

Con

nect

com

mun

icat

ion

line

betw

een

indo

or a

nd o

utdo

or.

[E19

]

[E20

]

No

No

No

No

No No

[E23

]H

eade

r ou

tdoo

r un

it qu

antit

y er

ror

1. M

isco

nnec

tion

of in

ter-

unit

wire

bet

wee

n in

door

a

nd o

utdo

or2.

Out

door

I/F

P.C

. boa

rd e

rror

Uni

t con

nect

ed to

oth

er li

nedu

ring

auto

mat

ic a

ddre

ss

Isco

mm

unic

atio

nlin

e be

twee

n in

door

and

outd

oor

conn

ecte

d to

one

unit

per

1sy

stem

?

Is

conn

ectio

nof C

N03

co

nnec

tor

on o

utdo

or

I/F P

.C. b

oard

norm

al?

Is th

ere

nom

isw

iring

or

disc

onne

ctio

n on

com

mun

icat

ion

lineg

bet

wee

n ou

tdoo

run

its?

Is n

ot m

ain

pow

er o

fou

tdoo

r un

it tu

rned

off?

Did

pow

er fa

ilure

occu

r?

Is th

ere

no n

oise

sour

ce, e

tc?

Is th

e en

dte

rmin

al re

sist

ance

bet

wee

nou

tdoo

r uni

ts tu

rned

on?

(SW

30 B

it 1)

Con

nect

com

mun

icat

ion

line

betw

een

indo

or a

nd o

utdo

orto

one

uni

t per

1 s

yste

m.

Cor

rect

com

mun

icat

ion

line.

Turn

on

mai

n po

wer

of

outd

oor u

nit.

Cor

rect

wiri

ng o

r con

nect

or.

Turn

the

end

term

inal

resi

stan

ce to

ON

.

Cle

ar c

heck

cod

e.

Che

ck a

nd e

limin

ate

nois

e,et

c.

Che

ck o

utdo

or I/

F P

.C. b

oard

.D

efec

t → R

epla

ce

Ref

eren

ce)

The

out

door

uni

t con

nect

ed w

ith c

omm

unic

atio

n w

ires

(U1,

U2)

bet

wee

nin

door

and

out

door

is a

utom

atic

ally

rec

ogni

zed

as th

e he

ader

uni

t.C

heck

I/F

boa

rd.

Sep

arat

e th

e co

nnec

tion

betw

een

the

lines

follo

win

g th

e ad

dres

s se

tup

met

hod.

Che

ck c

ode

nam

eC

heck

cod

e na

me

Cau

seC

ause

Che

ck c

ode

nam

eC

ause

Sub

-cod

e: 0

1: C

onne

ctio

n of

an

outd

oor

unit

in a

noth

er li

ne 0

2: C

onne

ctio

n of

an

indo

or u

nit i

n an

othe

r lin

e

Whe

n st

artin

g au

tom

atic

indo

or a

ddre

ss, a

dev

ice

in a

noth

er li

ne is

con

nect

ed.

Che

ck c

ode

Che

ck c

ode

Che

ck c

ode

Yes

Com

mun

icat

ion

sign

al s

endi

nger

ror

betw

een

outd

oor

units

1. In

ter-

unit

wire

con

nect

ion

erro

r be

twee

n ou

tdoo

r un

its2.

Com

mun

icat

ion

conn

ecto

r co

nnec

tion

erro

r

bet

wee

n ou

tdoo

r un

its, I

/F P

.C. b

oard

err

or3.

End

term

inal

res

ista

nce

setu

p er

ror

betw

een

o

utdo

or u

nits

Yes

Yes

Yes

Yes

Yes

– 160 –

Do

not s

et u

p ou

tdoo

r ad

dres

ses

man

ually

.

[E25

]

No

No N

o

No

[E26

]

Sub

-cod

e: A

ddre

ss o

f the

out

door

uni

t rec

eivi

ng s

igna

l abn

orm

ally

Yes

Yes

Yes

Yes

YesYes

Yes

Yes

Yes

No

No

No

No

Sub

-cod

e

[E31

]

01 02 03 04 05 06 07 08 09

O O O

0A 0B 0C 0D 0E 0F 80

O O O O

O O O O O O

O O O O

O O

O O O O

O O O O

O O O O O

A3-

IPD

UA

3-IP

DU

O

1

2

3

1

2

3

[E28

]

Sub

-cod

e: D

etec

ted

outd

oor

unit

No.

Cau

seC

heck

cod

eC

ause

Che

ck c

ode

nam

e

Cau

se

Dup

licat

ed fo

llow

er o

utdo

orad

dres

s se

tup

Add

ress

es a

re d

uplic

ated

by

man

ual s

etup

of

outd

oor

addr

ess

Fol

low

er o

utdo

or u

nit e

rror

Err

or h

as o

ccur

red

on a

follo

wer

out

door

uni

t.

Dec

reas

e of

con

nect

ed o

utdo

orun

its1.

Out

door

uni

t bac

kup

setu

p2.

Out

door

pow

er e

rror

3. C

omm

unic

atio

n lin

e co

nnec

tion

erro

r be

twee

n

out

door

uni

ts4.

Com

mun

icat

ion

conn

ecto

r co

nnec

tion

erro

r5.

Out

door

I/F

P.C

. boa

rd e

rror

IPD

U c

omm

unic

atio

n er

ror

1. C

onne

ctio

n er

ror

of c

omm

unic

atio

n lin

e be

twee

n

IPD

U a

nd I/

F P

.C. b

oard

2. I/

F P

.C. b

oard

err

or3.

IPD

U P

.C. b

oard

err

or4.

Ext

erna

l noi

se

Dur

ing

setu

p of

out

door

unit

back

up?

Isco

mm

unic

atio

nco

nnec

tor

betw

een

IPD

Uan

d I/F

P.C

. boa

rdco

nnec

ted?

Is th

ere

no d

isco

nnec

tion

onco

mm

unic

atio

n lin

ebe

twee

n IP

DU

and

I/F

P.C

. boa

rd?

Is th

ere

volta

ge d

efle

ctio

nbe

twee

n 4

and

5 pi

n of

CN

600

on I/

F P

.C. b

oard

?(M

easu

rem

ent w

ith te

ster

:D

C 0

to 5

V,

5 pi

ns G

ND

)

Is th

ere

volta

ge d

efle

ctio

nbe

twee

n 3

and

5 pi

n of

CN

600

on I/

F P

.C. b

oard

?(M

easu

rem

ent w

ith te

ster

:D

C0

to 5

V,

5 pi

ns G

ND

)

Is m

ain

pow

er o

ffo

llow

er u

nit t

urne

d on

?

Isco

mm

unic

atio

n lin

ebet

wee

n ou

tdoo

run

its c

onne

cted

norm

ally

?

Is c

omm

unic

atio

nco

nnec

tor

(CN

03)

betw

een

follo

wer

out

door

units

con

nect

ed?

Cle

ar th

e er

ror,

and

then

sta

rtop

erat

ion.

(*1

)

Cor

rect

con

nect

ion

of c

onne

ctor

.

Rep

lace

com

mun

icat

ion

line.

I/F P

.C. b

oard

err

or

I/F P

.C. b

oard

err

or

Sub

-cod

e: 8

0

Rep

lace

def

ectiv

e IP

DU

P.C

. boa

rd.

Turn

on

the

mai

n po

wer

sup

ply.

Cor

rect

con

nect

ion

ofco

mm

unic

atio

n lin

e.

Cor

rect

con

nect

or c

onne

ctio

n.(C

omm

unic

atio

n co

nnec

tor :

CN

03)

(*1)

How

to c

lear

the

erro

rS

et S

W01

/SW

02/S

W03

on

I/F P

.C. b

oard

of h

eade

r un

it to

2/1

6/1,

and

push

SW

04 fo

r 5

seco

nds

or m

ore.

(7-s

egm

ent d

ispl

ay :

[Er.

] [C

L])

Che

ck I/

F P

.C. b

oard

.

An

erro

r oc

curr

ed o

n a

follo

wer

uni

t. S

ee th

e ch

eck

code

on

the

7-se

gmen

t dis

play

on

I/F P

.C. b

oard

of t

he fo

llow

erun

it, a

nd th

en c

heck

it a

ccor

ding

to d

iagn

ose

proc

edur

e fo

r th

e ch

eck

code

.(H

ow to

spe

cify

the

follo

wer

out

door

uni

t in

whi

ch e

rror

occ

urre

d)P

ush

SW

04 fo

r 1

seco

nd o

r m

ore

unde

r co

nditi

on th

at [E

28] i

s di

spla

yed

on th

e 7-

segm

ent d

ispl

ay o

f the

hea

der

unit.

The

fan

of th

e ou

tdoo

r un

it w

hich

sto

pped

due

to o

ccur

renc

e of

err

or s

tart

s ro

tatin

g. P

ush

SW

05 to

sto

p th

e fa

n.

Fan

IPD

UFa

nIP

DU

S

ubM

CU

O: P

art w

here

IPD

U e

rror

has

occ

urre

d.

In th

e ca

se th

at A

ll IP

DU

s (A

3- IP

DU

s an

dfa

n IP

DU

s) d

o no

t ret

urn

resp

onse

.*

Tw

o A

3-IP

DU

s (N

O. 1

and

2)

exis

t in

6 T

on

mod

els.

In 8

or

10 T

on m

odel

s,

thre

e A

3-IP

DU

s (N

o. 1

, 2, 3

) ex

ist.

No

Was

pow

ersu

pply

cor

rect

ly re

set?

(Pow

er s

uppl

y O

FF

for

60 s

econ

ds o

r m

ore)

Res

et p

ower

sup

ply

and

reac

tivat

e.

I/F b

oard

err

or →

Rep

lace

Che

ck c

ode

nam

e

Che

ck c

ode

nam

e

Che

ck c

ode

nam

e

Cau

seC

heck

cod

e

Che

ck c

ode

Che

ck c

ode

– 161 –

No

No

[F03

]

Yes Yes

Yes

Yes

Yes

Yes

No

No

[F01

]

No

No

[F02

]

[F04

]

[F05

]

Che

ck c

ode

Cau

se

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

nam

e

Indo

or T

CJ

sens

or e

rror

T

CJ

sens

or O

pen/

Sho

rtIn

door

TC

1 se

nsor

err

orT

C1

sens

or O

pen/

Sho

rt

TD

1 se

nsor

err

orT

D1

sens

or O

pen/

Sho

rt

TD

2 se

nsor

err

orT

D2

sens

or O

pen/

Sho

rt

[F06

]T

E1

sens

or e

rror

TE

1, T

E2

sens

or O

pen/

Sho

rt

Indo

or T

C2

sens

or e

rror

T

C2

sens

or O

pen/

Sho

rt

Is T

CJ

sens

or c

onne

ctor

(CN

102:

Red

) on

indo

orP

.C. b

oard

nor

mal

lyco

nnec

ted?

Is T

C1

sens

or c

onne

ctor

(CN

100:

Bro

wn)

on

indo

orP

.C. b

oard

nor

mal

lyco

nnec

ted?

Are

ch

arac

teris

tics

of T

CJ

sens

or r

esis

tanc

eva

lue

norm

al?

Are

ch

arac

teris

tics

of T

C1

sens

or r

esis

tanc

eva

lue

norm

al?

Is T

C2

sens

or c

onne

ctor

(CN

101:

Bla

ck) o

n in

door

P.C

. boa

rd n

orm

ally

conn

ecte

d?

Are

ch

arac

teris

tics

ofT

C2

sens

or r

esis

tanc

eva

lue

norm

al?

Cor

rect

con

nect

ion

ofco

nnec

tor.

Cor

rect

con

nect

ion

ofco

nnec

tor.

Rep

lace

TC

1 se

nsor

.

Rep

lace

TC

J se

nsor

.

Cor

rect

con

nect

ion

ofco

nnec

tor.

Rep

lace

TC

2 se

nsor

.

Che

ck in

door

P.C

. boa

rd.

Def

ect →

Rep

lace

Che

ck in

door

P.C

. boa

rd.

Def

ect →

Rep

lace

C

heck

indo

or m

ain

P.C

. boa

rd.

Def

ect →

Rep

lace

* S

ee "

Indo

or u

nit t

empe

ratu

re s

enso

r ch

arac

teris

tics"

on

"9-9

. Sen

sor

Cha

ract

eris

tics"

.

* S

ee "

Indo

or u

nit t

empe

ratu

re s

enso

r ch

arac

teris

tics"

on

"9-9

. Sen

sor

Cha

ract

eris

tics"

.

* S

ee "

Indo

or u

nit t

empe

ratu

re s

enso

r ch

arac

teris

tics"

on

"9-9

. Sen

sor

Cha

ract

eris

tics"

.

Thi

s er

ror

code

mea

ns d

etec

tion

of O

pen/

Sho

rt o

f TD

1 se

nsor

. Che

ck d

isco

nnec

tion

of c

ircui

t for

con

nect

ion

ofco

nnec

tor

(TD

1 se

nsor

: CN

502,

Whi

te)

and

char

acte

ristic

s of

sen

sor

resi

stan

ce v

alue

. (S

ee "

Out

door

uni

tte

mpe

ratu

re s

enso

r ch

arac

teris

tics"

on

"9-9

. Sen

sor

Cha

ract

eris

tics"

.)If

sens

or is

nor

mal

, rep

lace

out

door

I/F

P.C

. boa

rd.

Thi

s er

ror

code

mea

ns d

etec

tion

of O

pen/

Sho

rt o

f TD

2 se

nsor

. Che

ck d

isco

nnec

tion

of c

ircui

t for

con

nect

ion

ofco

nnec

tor

(TD

2 se

nsor

: CN

503,

Pin

k) a

nd c

hara

cter

istic

s of

sen

sor

resi

stan

ce v

alue

. (S

ee "

Out

door

uni

t tem

pera

ture

sens

or c

hara

cter

istic

s" o

n "9

-9. S

enso

r C

hara

cter

istic

s".)

If se

nsor

is n

orm

al, r

epla

ce o

utdo

or I/

F P

.C. b

oard

.

Thi

s er

ror

code

mea

ns d

etec

tion

of O

pen/

Sho

rt o

f TE

1 se

nsor

. Che

ck d

isco

nnec

tion

of c

ircui

t for

con

nect

ion

ofco

nnec

tor

(TE

1 se

nsor

: CN

520,

Gre

en, T

E2

sens

or: C

N52

1,R

ed )

and

cha

ract

eris

tics

of s

enso

r re

sist

ance

val

ue.

(See

gO

utdo

or u

nit t

empe

ratu

re s

enso

r ch

arac

teris

tics

h on

"9-

9. S

enso

r C

hara

cter

istic

s".)

If se

nsor

is n

orm

al, r

epla

ce o

utdo

or I/

F P

.C. b

oard

.

– 162 –

[F08

]

[F10

]

[F12

]

[F07

]

[F13

]

Sub

-cod

e: 0

1: C

ompr

esso

r 1,

02:

Com

pres

sor

2, 0

3: C

ompr

esso

r 3

TL

sens

or e

rror

TL

sens

or O

pen/

Sho

rt

TO s

enso

r err

orTO

sen

sor

Ope

n/S

hort

Indo

or T

A s

enso

r er

ror

TA

sen

sor

Ope

n/S

hort

TS

1 se

nsor

err

orT

S1

sens

or O

pen/

Sho

rt

TH

sen

sor

erro

rIG

BT

bui

lt-in

sen

sor

erro

r in

A3-

IPD

U

Thi

s er

ror

code

mea

ns IG

BT

bui

lt-in

tem

pera

ture

sen

sor

erro

r.C

heck

con

nect

ion

of c

onne

ctor

s C

N06

on

IPD

U P

.C. b

oard

and

CN

600

on I/

F P

.C. b

oard

.If

sens

or is

nor

mal

, rep

lace

IPD

U P

.C. b

oard

.

Thi

s er

ror

code

mea

ns d

etec

tion

of O

pen/

Sho

rt o

f TL

sens

or. C

heck

dis

conn

ectio

n of

circ

uit f

or c

onne

ctio

n of

conn

ecto

r (T

L se

nsor

: CN

523,

Whi

te)

and

char

acte

ristic

s of

sen

sor

resi

stan

ce v

alue

. (S

ee "

Out

door

uni

t tem

pera

ture

sens

or c

hara

cter

istic

s" o

n "9

-9. S

enso

r C

hara

cter

istic

s".)

If se

nsor

is n

orm

al, r

epla

ce o

utdo

or I/

F P

.C. b

oard

.

Thi

s er

ror

code

mea

ns d

etec

tion

of O

pen/

Sho

rt o

f TO

sen

sor.

Che

ck d

isco

nnec

tion

of c

ircui

t for

con

nect

ion

ofco

nnec

tor

(TO

sen

sor:

CN

507,

Yel

low

) an

d ch

arac

teris

tics

of s

enso

r re

sist

ance

val

ue. (

See

"O

utdo

or u

nit t

empe

ratu

rese

nsor

cha

ract

eris

tics"

on

"9-9

. Sen

sor

Cha

ract

eris

tics"

.)If

sens

or is

nor

mal

, rep

lace

out

door

I/F

P.C

. boa

rd.

Thi

s er

ror

code

mea

ns d

etec

tion

of O

pen/

Sho

rt o

f TA

sen

sor.

Che

ck d

isco

nnec

tion

of c

ircui

t for

con

nect

ion

ofco

nnec

tor

(TA

sen

sor:

CN

104,

Yel

low

) an

d ch

arac

teris

tics

of s

enso

r re

sist

ance

val

ue. (

See

"In

door

uni

t tem

pera

ture

sens

or c

hara

cter

istic

s" o

n "9

-9. S

enso

r C

hara

cter

istic

s".)

If se

nsor

is n

orm

al, r

epla

ce in

door

P.C

. boa

rd.

Thi

s er

ror

code

mea

ns d

etec

tion

of O

pen/

Sho

rt o

f TS

1 se

nsor

. Che

ck d

isco

nnec

tion

of c

ircui

t for

con

nect

ion

ofco

nnec

tor

(TS

1 se

nsor

: CN

505,

Whi

te)

and

char

acte

ristic

s of

sen

sor

resi

stan

ce v

alue

. (S

ee "

Out

door

uni

t tem

pera

ture

sens

or c

hara

cter

istic

s" o

n "9

-9. S

enso

r C

hara

cter

istic

s".)

If se

nsor

is n

orm

al, r

epla

ce o

utdo

or I/

F P

.C. b

oard

.

Ope

n/sh

ort o

f TF

/ T

FA

sen

sor

was

det

ecte

d. C

heck

dis

conn

ectio

n of

con

nect

or c

onne

ctio

n (T

FA

sen

sor:

CN

103

yello

wis

h gr

een)

circ

uit a

nd r

esis

tanc

e va

lue

char

acte

ristic

s of

the

sens

or. (

Ref

er to

"9-

9 S

enso

r C

hara

cter

istic

sIn

door

Uni

t Tem

pera

ture

Sen

sor

Cha

ract

eris

tics"

.) W

hen

the

sens

or is

nor

mal

, rep

lace

the

indo

or P

.C. b

oard

.

Yes

Out

door

I/F

P.C

. boa

rdT

E1

sens

or :

CN

520,

Gre

enT

L se

nsor

: C

N52

3, W

hite

No

No

Yes

No

Yes

[F15

]O

utdo

or te

mp

sens

or m

isw

iring

(TE

1 , T

L)

1. M

isin

stal

latio

n an

d m

isco

nnec

tion

of T

E1

sens

or

and

TL

sens

or2.

Res

ista

nce

char

acte

ristic

s er

ror

of T

E1

sens

or

and

TL

sens

or3.

Out

door

P.C

. boa

rd (

I/F)

erro

r

Are

in

stal

led

posi

tions

of T

E1

sens

or a

nd T

Lse

nsor

cor

rect

?

Are

co

nnec

tion

of T

E1

sens

or c

onne

ctor

and

TL

sens

or c

onne

ctor

norm

al?

Are

re

sist

ance

char

acte

ristic

s of

TL

sens

or a

nd T

E1

sens

orno

rmal

?

Cor

rect

inst

alle

d po

sitio

ns o

fT

E1

sens

or a

nd T

L se

nsor

.

Cor

rect

con

nect

ion

ofco

nnec

tors

.

Cor

rect

con

nect

ion

ofco

nnec

tors

.

Che

ck o

utdo

or I/

F P

.C. b

oard

.D

efec

t → R

epla

ce

TE

1 se

nsor

: O

utdo

or h

eat e

xcha

nger

tem

p se

nsor

TL

sens

or: T

emp

sens

or b

etw

een

liqui

d ta

nks

of o

utdo

or P

MV

1/2

* S

ee "

Out

door

uni

t tem

pera

ture

sen

sor

char

acte

ristic

s" o

n "9

-9. S

enso

r C

hara

cter

istic

s".

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

– 163 –

Yes

Yes

Yes

No

No No

[F16

]C

heck

cod

eC

ause

Che

ck c

ode

nam

e

Out

door

pre

ssur

e se

nsor

mis

wiri

ng (

Pd,

Ps)

1. H

igh-

pres

sure

Pd

sens

or a

nd lo

w p

ress

ure

s

enso

r P

s ar

e ex

chan

ged.

2. O

utpu

t vol

tage

of e

ach

sens

or is

zer

o.

Are

co

nnec

tion

ofP

d se

nsor

and

Ps

sens

or c

onne

ctor

sco

rrec

t?

Are

out

put

volta

ge c

hara

cter

istic

sof

Pd

sens

or a

nd P

sse

nsor

nor

mal

?

Are

P

d / P

sou

tput

val

ues

Pd

> P

s du

ring

com

pres

sor

oper

atio

n?

Cor

rect

con

nect

ion

of c

onne

ctor

s.P

d se

nsor

: CN

501,

Red

Ps

sens

or: C

N50

0, W

hite

Sen

sor

erro

r →

Rep

lace

Che

ck c

ompr

esso

r.

Che

ck o

utdo

or I/

F P

.C. b

oard

.D

efec

t → R

epla

ce

(1)

Pre

ssur

e (C

heck

join

t) b

y pr

essu

re g

auge

(2)

Pre

ssur

e di

spla

y on

7-s

egm

ent d

ispl

ay(3

) O

utpu

t vol

tage

of I

/F P

.C. b

oard

I

f (1)

and

(2)

, (3)

are

diff

eren

t, an

err

or o

f pre

ssur

e

sen

sor

itsel

f is

cons

ider

ed.

I

f (2)

and

(3)

are

diff

eren

t, ch

eck

inte

rfac

e P

.C. b

oard

.

Val

ue c

an b

e co

nfirm

ed b

y 7-

segm

ent

disp

lay

func

tion

on o

utdo

or I/

F P

.C. b

oard

.

Pd

SW

01/0

2/03

=1/

1/2

Ps

SW

01/0

2/03

=1/

2/2

No

No

No

Yes

Yes

Yes

Yes

No

[F23

]

Con

nect

or: C

N50

0, W

hite

[F24

]

Ps

sens

or e

rror

Out

put v

olta

ge e

rror

of P

s se

nsor

Pd

sens

or e

rror

Out

put v

olta

ge e

rror

of P

d se

nsor

Is c

onne

ctio

n of

Ps

sens

or c

onne

ctor

corr

ect?

Are

ou

tput

volta

ge c

hara

cter

istic

sof

Ps

sens

orno

rmal

?

Is

ther

e no

leak

age

from

SV

4 va

lve?

Is n

otre

frige

rant

byp

asse

d fro

mdi

scha

rge

to s

uctio

n of

4-w

ay v

alve

?

Cor

rect

con

nect

ion

ofco

nnec

tor.

Sen

sor

erro

r →

Rep

lace

Che

ck c

ompr

esso

r.

Rep

lace

SV

4 va

lve.

Che

ck 4

-way

val

ve.

(1)

Pre

ssur

e (C

heck

join

t) b

y pr

essu

re g

auge

(2)

Pre

ssur

e di

spla

y on

7-s

egm

ent d

ispl

ay(3

) O

utpu

t vol

tage

of I

/F P

.C. b

oard

I

f (1)

and

(2)

, (3)

are

diff

eren

t, an

err

or o

f pre

ssur

e

sen

sor

itsel

f is

cons

ider

ed.

I

f (2)

and

(3)

are

diff

eren

t, ch

eck

inte

rfac

e P

.C. b

oard

.

It is

out

put v

olta

ge e

rror

of P

d se

nsor

. Che

ck d

isco

nnec

tion

of c

onne

ctio

n of

con

nect

or (

Pd

sens

or: C

N50

1, r

ed)

circ

uit a

nd o

utpu

t vol

tage

of s

enso

r.If

the

sens

or is

nor

mal

, rep

lace

out

door

I/F

P.C

. boa

rd.

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

– 164 –

[F29

]

(Pow

er O

N)

(App

rox.

3 m

inut

es)

(App

rox.

1 m

inut

e)

Yes

No

[F31

]

Indo

or o

ther

err

orIn

door

P.C

. boa

rd e

rror

Thi

s er

ror

is d

etec

ted

durin

g op

erat

ion

of a

ir co

nditi

oner

of I

C10

(IC

503)

non

-vol

atile

mem

ory

(EE

PR

OM

) on

indo

or u

nit P

.C.b

oard

. Rep

lace

ser

vice

P.C

. boa

rd.

* If

EE

PR

OM

was

not

inse

rted

whe

n po

wer

was

turn

ed o

n or

it is

abs

olut

ely

impo

ssib

le to

rea

d/w

rite

EE

PR

OM

dat

a, th

e au

tom

atic

add

ress

mod

e is

rep

eate

d. In

this

cas

e, [9

7 er

ror]

is d

ispl

ayed

on

AI-

NE

T c

entr

al c

ontr

olle

r.

[SE

T D

AT

A]

is d

ispl

ayed

on r

emot

eco

ntro

ller.

[SE

T D

AT

A]

disa

ppea

rs.

LED

(D

02)

1Hz

flash

es fo

r ap

prox

.10

sec

onds

on

indo

or u

nit P

.C.

boar

d.

Reb

oot (

Res

et)

(Rep

etiti

on)

Out

door

EE

PR

OM

err

or1.

Out

door

uni

t pow

er e

rror

(V

olta

ge, n

oise

, etc

.)2.

Out

door

I/F

P.C

. boa

rd e

rror

Is

ther

e an

y tr

oubl

e of

ou

tdoo

r un

it po

wer

su

pply

?

Che

ck p

ower

vol

tage

and

line

.C

orre

ct p

ower

line

.C

heck

ext

erna

l noi

se, e

tc.

Che

ck I/

F P

.C. b

oard

.

No

No

* F

T9

: 208

/230

V±

10%

FT

6 : 4

60 V

±10

%

No

Yes

Yes

Yes

Yes

YesN

o

No

[H01

]

V U

W

Is

pow

er v

olta

geof

out

door

uni

tno

rmal

?

Doe

s vo

ltage

drop

occ

ur w

hen

othe

r co

mpr

esso

rst

arts

?

Is

win

ding

resi

stan

ce b

etw

een

phas

es o

f cor

resp

ondi

ngco

mpr

esso

r no

rmal

?(N

ote

1)

Is n

ot it

an

abno

rmal

over

load

?

Is

conn

ectio

nof

wiri

ng o

r con

nect

ion

ofco

nnec

tor o

n A3

-IPD

U P

.C.

boar

d no

rmal

?.

Cor

rect

pow

er li

ne.

Cor

rect

con

nect

or c

onne

ctio

nor

wiri

ng.

Com

pres

sor

erro

r (M

otor

burn

ing,

etc

.)

Cor

rect

cau

se o

f ove

rload

.

Che

ck IP

DU

P.C

. boa

rd.

Com

pres

sor

brea

kdow

nR

otor

-sto

p co

nduc

tion

has

occu

rred

.

1. O

utdo

or u

nit p

ower

line

err

or2.

Com

pres

sor

circ

uit s

yste

m e

rror

3. C

ompr

esso

r er

ror

4. A

bnor

mal

ove

rload

in o

pera

tion

5. A

3-IP

DU

P.C

. boa

rd e

rror

Sub

-cod

e: 01: C

ompr

esso

r 1,

02: C

ompr

esso

r 2,

03: C

ompr

esso

r 3

Tak

e of

f lea

d w

ire o

f com

pres

sor.

1. C

heck

res

ista

nce

betw

een

win

ding

s:

It i

s no

rmal

if th

ere

are

0.1Ω

to 0

.4Ω

. 2

. Che

ck in

sula

tion

betw

een

outd

oor

cabi

net a

nd te

rmin

al:

I

t is

norm

al if

ther

e ar

e 20

MΩ

or

mor

e.

No

te 1

Afte

r ch

ecki

ng th

e ou

tput

, whe

n co

nnec

ting

the

com

pres

sor

lead

aga

in to

the

com

pres

sor

term

inal

, che

ck s

urel

y th

ere

isno

dis

tort

ion

on th

e F

aste

n re

cept

acle

term

inal

.If

it is

loos

ened

, cau

lk it

with

pin

cher

s, e

tc a

nd th

en c

onne

ctle

ad to

the

term

inal

firm

ly.

Det

ails

of c

ompr

esso

rpo

wer

con

nect

ing

sect

ion

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

– 165 –

No

No

*1: F

T9

: 208

/230

V±

10%

F

T6

: 460

V ±

10%

No

No

No

No

No

[H02

]C

ompr

esso

r er

ror

(Loc

k)

MG

-CT

T: M

agne

t con

tact

or

1. O

utdo

or u

nit p

ower

line

err

or2.

Com

pres

sor

circ

uit s

yste

m e

rror

3. C

ompr

esso

r er

ror

4. R

efrig

eran

t sta

gnat

ion

in c

ompr

esso

r sh

ell

5. A

3-IP

DU

P.C

. boa

rd e

rror

6. M

G-C

TT

err

or

Sub

-cod

e: 01: C

ompr

esso

r 1,

02: C

ompr

esso

r 2,

03: C

ompr

esso

r 3

Is

pow

er v

olta

geof

out

door

uni

tno

rmal

? *1

Doe

s vo

ltage

dro

p oc

cur

whe

n ot

her

com

pres

sor

star

ts?

Is w

iring

or

conn

ecto

rcon

nect

ion

on

A3-

IPD

U P

.C. b

oard

norm

al?

Is M

G-C

TT

nor

mal

? *2

Is th

ere

nore

frig

eran

t sta

gnat

ion

in c

ompr

esso

r sh

ell?

Is c

ompr

esso

rno

rmal

? *3

Is c

ase

heat

er o

utpu

tno

rmal

?

Cor

rect

pow

er li

ne.

Cor

rect

con

nect

or c

onne

ctio

nor

wiri

ng.

Exc

hang

e M

G-C

TT

No

Abn

orm

al o

verlo

ad?

Cor

rect

cau

se o

f ove

rload

.

Cor

rect

ref

riger

ant s

tagn

atio

nin

com

pres

sor

shel

l.

Ope

ratio

n st

arts

.C

heck

cas

e he

ater

.

Com

pres

sor

erro

r

Che

ck A

3-IP

DU

P.C

. boa

rd.

*3 C

heck

the

follo

win

g ite

ms

mai

nly.

1. E

xist

ence

of a

bnor

mal

sou

nd a

nd a

bnor

mal

v

ibra

tion

durin

g op

erat

ion

or s

tart

ing

2. A

bnor

mal

ove

rhea

t of c

ase

durin

g op

erat

ion

or

sto

p tim

e (N

ever

touc

h w

ith h

ands

.)3.

Cur

rent

of c

ompr

esso

r le

ad d

urin

g op

erat

ion

or

sta

rtin

g tim

e (N

o su

dden

cha

nge

of c

urre

nt?)

*2 C

heck

con

nect

ion

wiri

ng

Che

ck o

pera

tion

of M

G-C

TT

C

heck

the

shor

t circ

uit o

f MG

-CT

T

Yes

Yes

Yes

Yes Yes

Yes Yes

Yes

Yes Yes

No

[H03

]C

urre

nt d

etec

tive

circ

uit s

yste

mer

ror

1. W

iring

or

conn

ecto

r co

nnec

tion

erro

r on

A

3-IP

DU

P.C

. boa

rd2.

A3-

IPD

U P

.C. b

oard

err

or

Sub

-cod

e: 01: C

ompr

esso

r 1,

02: C

ompr

esso

r 2,

03: C

ompr

esso

r 3

Wiri

ngor

con

nect

orco

nnec

tion

on IP

DU

P.C

. bo

ardn

orm

al?

Cor

rect

con

nect

or c

onne

ctio

nor

wiri

ng.

Che

ck IP

DU

P.C

. boa

rd.

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

– 166 –

No

No

No

No

No

No

NoNo

(Che

ck w

ith m

isw

iring

che

ck fu

nctio

n of

out

door

uni

t.)

No

No

No

No

No

No

Cle

anin

g

Cle

anin

g

[H06

]

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Low

-pre

ssur

e pr

otec

tive

oper

atio

n1.

Ser

vice

val

ve c

lose

2. P

s se

nsor

err

or3.

SV

2, S

V4

circ

uit e

rror

4. M

isw

iring

of c

omm

unic

atio

n be

twee

n in

door

and

o

utdo

or5.

Indo

or/o

utdo

or fa

n an

d co

nden

ser

erro

r6.

Indo

or/o

utdo

or P

MV

clo

ggin

g7.

Indo

or/o

utdo

or h

eat e

xcha

nger

clo

ggin

g8.

Ref

riger

ant s

hort

age

Are

serv

ice

valv

es o

fga

s an

d liq

uid

pipe

of

outd

oor u

nit f

ully

open

ed?

Are

char

acte

ristic

s of

low

-pre

ssur

e se

nsor

norm

al?

Are

SV

2 an

d S

V4,

SV

14ci

rcui

ts n

orm

al?

Is a

ny in

door

uni

tin

a d

iffer

ent l

ine

conn

ecte

d?

Doe

s in

door

fan

norm

ally

ope

rate

in c

oolin

g se

ason

?

Is

ther

e cl

oggi

ng o

f ind

oor

air

filte

r or

hea

t ex

chan

ger?

Is in

door

PM

Vno

rmal

?

Is o

utdo

or

fan

norm

ally

ope

rate

d in

heat

ing

seas

on?

Is th

ere

clog

ging

of o

utdo

or h

eat

exch

ange

r?

Is o

utdo

or P

MV

norm

al?

Is c

onne

ctor

conn

ectio

n or

coi

lno

rmal

?

Is th

ere

clog

ging

on w

hole

val

ve?

Are

follo

win

g ite

ms

conc

erne

d to

indo

or fa

nm

otor

nor

mal

?1.

Con

nect

or c

onne

ctio

n2.

Con

dens

er3.

Mot

or4.

Fan

Ope

n se

rvic

e va

lves

fully

.

Exc

hang

e lo

w-p

ress

ure

sens

or.

Cor

rect

SV

2 ,S

V4

and

SV

14ci

rcui

ts.

Cor

rect

wiri

ng.

Rep

air

faul

ty p

arts

.

Che

ck in

door

P.C

. boa

rd.

Fai

lure

→ R

epla

ce

Ref

riger

ant s

horta

ge o

r clo

ggin

g or

pip

e de

form

ed

Rep

air

faul

ty p

arts

.

Rep

air

faul

ty p

arts

.

Ref

riger

ant s

hort

age,

clog

ging

, pip

e de

form

ed

Rep

lace

PM

V b

ody.

Che

ck o

utdo

or I/

F P

.C. b

oard

.F

ailu

re →

Rep

lace

In c

oolin

g se

ason

, go

to (

A)

In h

eatin

g se

ason

, go

to (

B)

(A)

Coo

ling

(B)

Hea

ting

Che

ck m

isw

iring

, mis

inst

alla

tion

and

conn

ecto

r co

nnec

tion.

* 1.

Pre

ssur

e by

pre

ssur

e ga

uge

(Che

ck jo

int)

2. P

ress

ure

disp

lay

on 7

-seg

men

t dis

play

3. O

utpu

t vol

tage

of I

/F P

.C. b

oard

(CN

500

)

If

1 an

d 2,

3 a

re d

iffer

ent,

an e

rror

of p

ress

ure

sens

or e

rror

is c

onsi

dere

d.

If

2 an

d 3

are

diffe

rent

, che

ck I/

F P

.C. b

oard

.

Is in

door

fan

syst

em n

orm

al?

. Fan

cra

ck. F

an c

omin

g-of

fY

es

Yes

Yes

Yes

Yes

Yes

Yes

Yes Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No

stag

natio

n

No

Err

or

No

No

leak

age

or

clog

ging

No

clog

ging

No

clog

ging

Sta

gnat

ion

No

erro

r

Clo

ggin

g

Clo

ggin

g

Clo

ggin

g

[H07

]O

il le

vel d

own

dete

ctio

npr

otec

tion

1. V

alve

s of

bal

ance

pip

es c

lose

d. (

On

all o

utdo

or

units

in a

line

)

2. M

isw

iring

or

mis

inst

alla

tion

of T

K1

to T

K5

sens

ors

3. T

K1

to T

K5

sens

or e

rror

4. G

as le

ak o

r oi

l lea

k in

a li

ne

5. R

efrig

eran

t sta

gnat

ion

of c

ompr

esso

r ca

se

6. S

V3A

, 3B

, 3C

, 3D

, 3E

, 3F

val

ve e

rror

7. C

logg

ing

of o

il re

turn

circ

uit f

rom

oil

sepa

rato

r

8. C

logg

ing

of o

il-eq

uatio

n ci

rcui

t sys

tem

Are

bal

ance

pipe

val

ves

of a

ll ou

tdoo

run

its in

sam

e lin

e fu

llyop

ened

?

Are

TK

1, T

K2,

TK

3,

TK4

and

TK5

sens

ors

of th

e er

ror-

dete

cted

uni

t cor

rect

lyco

nnec

ted?

Are

all

the

sens

ors

prop

erly

con

nect

ed?

Are

char

acte

ristic

s of

TK

1 to

TK5

of e

rror-d

etec

ted

unit

norm

al?

Che

ck r

efrig

eran

tst

agna

tion

inco

mpr

esso

r.

(*1)

C

heck

leak

age

ofva

lves

(S

V3A

, SV

3C)

and

clog

ging

(S

V3B

, SV

3E,

SV

3F).

(*2)

C

heck

clo

ggin

g of

oil

retu

rnci

rcui

t fro

m

oil s

epar

ator

. (C

apill

ary

tube

, st

rain

er)

Che

ck c

logg

ing

ofS

V3D

val

ve.

Che

ck c

logg

ing

of s

olen

oid

valv

es (

SV

3A,

SV

3C)

of a

ll ou

tdoo

r un

itsin

the

sam

e lin

e. (

*3)

Are

all

oil l

evel

sco

rrec

t?

Ope

n ba

lanc

e pi

pe v

alve

sfu

lly, r

eset

pow

er s

uppl

y,an

d st

art o

pera

tion.

Sen

sor

erro

r →

Rep

lace

Spe

cify

gas

leak

pos

ition

and

repa

ir it.

(Rec

harg

ing,

ref

ill o

il)

Rep

lace

faul

ty p

art.

Rep

lace

faul

ty p

art.

Rep

lace

faul

ty p

art.

Rep

lace

faul

ty p

art.

Che

ck g

as le

ak o

f all

outd

oor

units

in th

e sa

me

line

and

chec

k so

aked

oil

in th

em.

Cor

rect

refri

gera

nt s

tagn

atio

nin

com

pres

sor,

rese

t pow

ersu

pply

, and

sta

rt th

e op

erat

ion.

Cle

ar c

ause

of s

tagn

atio

n.C

heck

clo

ggin

g of

oil

equa

lizat

ion

circ

uit.

(*4)

Che

ck o

il le

vel j

udgm

ent o

f eac

h un

it.Th

e ch

eck

resu

lt is

indi

cate

d on

the

7-se

gmen

t dis

play

by

setti

ng[S

W01

/02/

03] t

o [1

/16/

1].

Cor

rect

mis

wiri

ng a

nd m

isin

stal

latio

n.T

K1:

CN

531,

bla

ckT

K2:

CN

532,

gre

enT

K3:

CN

533,

pin

kT

K4:

CN

534,

yel

low

TK

5: C

N53

5, r

ed

Indo

or/o

utdo

or P

MV

err

or (

Cau

se o

f ref

riger

ant s

tagn

atio

n),

disc

harg

e ch

eck

valv

e er

ror,

etc

.

(Ref

eren

ce)

Whe

n re

frig

eran

t sta

gnat

es in

com

pres

sor

shel

l, th

e oi

l lev

el s

hort

age

may

be

Leak

age

orcl

oggi

ng

*See

"O

utdo

or u

nit t

empe

ratu

re s

enso

r c

hara

cter

istic

s" o

n "9

-9. S

enso

r C

hara

cter

istic

s".

Che

ck c

ode

Cau

seC

heck

cod

e na

me

– 167 –

In s

ome

case

s, it

may

be

diffi

cult

to c

heck

the

leak

age

of c

logg

ing

in th

e fo

llow

ing

cond

ition

of r

efrig

eran

tst

agna

tion

in lo

w a

mbi

ent t

empe

ratu

re c

ondi

tion.

In th

is c

ase,

take

a lo

nger

ope

ratin

g tim

e pr

ior

to c

heck

.(C

riter

ion:

Dis

char

ge te

mpe

ratu

re o

f TD

1, T

D2

and

TD

3 ar

e 14

0˚F

(60

˚C)

or h

ighe

r)

(*1)

Che

ckin

g le

akag

e an

d cl

oggi

ng o

n so

leno

id v

alve

sa)

Lea

kage

che

ck fo

r S

V3A

val

ve (

For

mul

tiple

out

door

uni

t sys

tem

)

•Tur

n of

f the

pow

er s

uppl

y, ta

ke o

ff co

nnec

tor o

f SV

3A v

alve

, and

then

sta

rt a

test

ope

ratio

n af

ter

pow

er-O

N.

• C

heck

the

tem

pera

ture

cha

nge

at s

econ

dary

sid

e of

SV

3A v

alve

dur

ing

oper

atio

n . (

(1) i

n th

e fig

ure.

)→

If te

mpe

ratu

re is

rais

ed, l

eaka

ge o

ccur

s in

the

SV

3A v

alve

. Rep

lace

SV

3A v

alve

.

b) L

eaka

ge c

heck

for

SV

3C v

alve

• Tu

rn o

ff th

e po

wer

sup

ply,

take

off

conn

ecto

r of S

V3C

val

ve, a

nd th

en s

tart

a te

st o

pera

tion

afte

r p

ower

-ON

.•

Afte

r ope

ratio

n fo

r sev

eral

min

utes

, che

ck te

mpe

ratu

re a

t sec

onda

ry s

ide

of S

V3C

val

ve. (

(2) i

n th

e f

igur

e.)

→ If

tem

pera

ture

is h

igh

(equ

ival

ent t

o di

scha

rge

tem

pera

ture

TD

), le

akag

e oc

curs

in th

e S

V3C

val

ve.

R

epla

ce S

V3C

val

ve.

(E

ven

if le

akag

e do

es n

ot o

ccur

in th

e S

V3C

val

ve, t

empe

ratu

re o

f SV

3C v

alve

at s

econ

dary

sid

e

rise

s du

ring

oper

atio

n. B

ut th

e te

mpe

ratu

re is

low

er th

an T

D w

hen

ther

e is

no

leak

age.

)

c) L

eaka

ge c

heck

for

SV

3F v

alve

(F

or m

ultip

le o

utdo

or u

nit s

yste

m)

• T

urn

off t

he p

ower

sup

ply,

take

off

conn

ecto

r of S

V3F

val

ve, a

nd th

en s

tart

a te

st o

pera

tion

afte

r

pow

er-O

N.

• C

heck

the

tem

pera

ture

cha

nge

at s

econ

dary

sid

e of

SV

3F v

alve

dur

ing

oper

atio

n . (

(3) i

n th

e fig

ure.

)•

If te

mpe

ratu

re is

rais

ed, l

eaka

ge o

ccur

s in

the

SV

3A v

alve

. Rep

lace

SV

3A v

alve

.→

If te

mpe

ratu

re is

rais

ed, l

eaka

ge o

ccur

s in

the

SV

3A v

alve

. Rep

lace

SV

3A v

alve

.

d) C

logg

ing

chec

k fo

r S

V3B

val

ve (

For

mul

tiple

out

door

uni

t sys

tem

) • W

hile

out

door

uni

t is

oper

ated

, set

up

SW

01/0

2/03

= [2

] [1]

[3] (

7-se

gmen

t dis

play

[Hr]

[...

... ..

.]), a

nd p

ush

SW

04 fo

r 2

seco

nds

or m

ore.

• S

et u

p S

W02

= [1

0], a

nd tu

rn o

n S

V3A

, SV

3B, S

V3C

val

ves.

(7-

segm

ent d

ispl

ay [H

r] [.

.. 3

-])

• W

hile

out

door

uni

ts a

re o

pera

ting,

che

ck te

mpe

ratu

re c

hang

e at

sec

onda

ry s

ide

of S

V3B

val

ve. (

(4)

in t

he fi

gure

.)•

If te

mpe

ratu

re d

oes

not r

ise

(equ

ival

ent t

o su

ctio

n te

mpe

ratu

re),

it is

a c

logg

ing

of S

V3B

val

ve.

→ R

epla

ce S

V3B

val

ve.

e) C

logg

ing

for

SV

3E v

alve

Res

et th

e po

wer

sup

ply.

↓ Usi

ng "

Val

ve fo

rced

ope

n/cl

ose

func

tion"

of t

he o

utdo

or u

nit,

chec

k O

N/O

FF

ope

ratio

n (S

ound

, coi

lsu

rfac

e te

mp

up)

of S

V3E

val

ve is

per

form

ed.

↓ Sta

rt te

st o

pera

tion

in C

OO

L or

HE

AT m

ode.

↓ Afte

r op

erat

ion

for

seve

ral m

inut

es, c

heck

the

pipe

tem

pera

ture

at t

he s

econ

dary

sid

e of

SV

3E v

alve

whe

ther

tem

pera

ture

cha

nges

or

not.

If it

is e

quiv

alen

t to

outs

ide

tem

pera

ture

, clo

ggin

g of

SV

3E is

cons

ider

ed. (

(5)

in th

e fig

ure.

)(R

efer

ence

)If

SV

3E v

alve

is c

logg

ed, t

empe

ratu

re d

oes

not c

hang

e at

all

sens

ors

(TK

1, T

K2,

TK

3, T

K4

and

TK

5).

f) C

logg

ing

chec

k fo

r S

V3F

val

ve • W

hile

out

door

uni

t is

oper

ated

, set

up

SW

01/0

2/03

= [2

] [1]

[3] (

7-se

gmen

t dis

play

[Hr]

[...

... ..

.]), a

nd p

ush

SW

04 fo

r 2

seco

nds

or m

ore.

• S

et u

p S

W02

= [8

], an

d tu

rn o

n S

V3C

, SV

3E, S

V3F

val

ves.

(7-

segm

ent d

ispl

ay [H

r] [.

.. 3

C])

• W

hile

out

door

uni

ts a

re o

pera

ting,

che

ck te

mpe

ratu

re c

hang

e at

sec

onda

ry s

ide

of S

V3F

val

ve. (

(3)

in t

he fi

gure

.)•

If te

mpe

ratu

re d

oes

not r

ise

(equ

ival

ent t

o su

ctio

n te

mpe

ratu

re),

it is

a c

logg

ing

of S

V3F

val

ve.

Rep

lace

SV

3F v

alve

.

(*2

) C

heck

ing

the

oil r

etur

n ci

rcui

t fro

m o

il se

para

tor

and

clog

ging

in

S

V3D

val

vea)

Oil

retu

rn c

ircui

t • W

hile

out

door

uni

t is

oper

atin

g, c

heck

tem

pera

ture

(se

cond

ary

side

of c

apill

ary)

on

oil r

etur

n ci

rcui

t. (

(6)

in th

e fig

ure.

)•

If te

mpe

ratu

re is

low

equ

ival

ent t

o su

ctio

n te

mpe

ratu

re),

a c

logg

ing

of s

trai

ner

of o

il re

turn

circ

uit o

r→

cap

illar

y is

con

side

red.

Rep

lace

the

clog

ged

part

.

b) C

logg

ing

chec

k fo

r S

V3D

val

ve • W

hile

out

door

uni

t is

oper

ated

, set

up

SW

01/0

2/03

= [2

] [1]

[3] (

7-se

gmen

t dis

play

[Hr]

[...

... ..

.]), a

nd p

ush

SW

04 fo

r 2

seco

nds

or m

ore.

• S

et u

p S

W02

= [9

], an

d tu

rn o

n S

V3D

val

ve. (

7-se

gmen

t dis

play

[Hr]

[...

3 d]

)•

If te

mpe

ratu

re is

low

at s

econ

dary

sid

e of

the

valv

e or

it d

oes

not c

hang

e, c

logg

ing

of v

alve

, cap

illar

y, o

r st

rain

er is

con

side

red.

((7

) in

the

figur

e.)

Rep

lace

the

clog

ged

part

.

– 168 –

(6)

(7)

(2)

(5)

(8)

(1)

(8)

(4)

Che

ck v

alve

Hig

h-pr

essu

re s

enso

r

(T

D2)

(SV

2)

(SV

41)

(TK

2)

(SV

3B)

(TK

1)

(T

D1)

(TK

4)

(SV

3E)

(TK

5)

(SV

42)

Oil

head

er

Dis

trib

utor

SV

3C

SV S

V

SV S

V

SV

SV

SV

SV

(*3)

Che

ck fo

r so

leno

id v

alve

of a

ll ou

tdoo

r un

its in

a li

ne (

For

mul

tiple

out

door

uni

t sys

tem

)a)

Clo

ggin

g ch

eck

for

SV

3A v

alve

• W

hile

out

door

uni

t is

oper

atin

g, s

et u

p S

W01

/02/

03 =

[2] [

1] [3

] (7-

segm

ent d

ispl

ay [H

r] [.

.. ...

...])

, and

pus

h S

W04

for

2 se

cond

s or

mor

e.•

Set

up

SW

02 =

[6],

and

turn

on

SV

3A v

alve

. (7-

segm

ent d

ispl

ay [H

r] [.

.. 3

A])

• If

tem

pera

ture

is lo

w a

t sec

onda

ry s

ide

of th

e va

lve

or it

doe

s no

t cha

nge,

clo

ggin

g of

val

ve o

r ch

eck

val

ve is

con

side

red.

((1

) in

the

figur

e.)

b) L

eaka

ge c

heck

for

SV

3C v

alve

• W

hile

out

door

uni

t is

oper

atin

g, s

et u

p S

W01

/02/

03 =

[2] [

1] [3

] (7-

segm

ent d

ispl

ay [H

r] [.

.. ...

...])

, and

pus

h S

W04

for

2 se

cond

s or

mor

e.•

Set

up

SW

02 =

[8],

and

turn

on

SV

3C v

alve

. (7-

segm

ent d

ispl

ay [H

r] [.

.. 3

C])

• If

tem

pera

ture

doe

s no

t cha

nge

(up)

, clo

ggin

g of

val

ve o

r st

rain

er is

con

side

red.

((2

) in

the

figur

e.)

(*4)

a) C

logg

ing

chec

k fo

r oi

l-equ

aliz

atio

n ci

rcui

t • D

rive

the

outd

oor

unit.

(D

rive

all c

ompr

esso

rs in

the

unit.

)•

Afte

r dr

ivin

g fo

r 10

min

utes

or

mor

e, c

heck

whe

ther

tem

pera

ture

of T

K1,

TK

2 an

d T

K3

sens

ors

and

tem

pera

ture

of o

il-eq

ualiz

atio

n ci

rcui

t cap

illar

y ((

8) in

the

figur

e) h

as in

crea

sed.

(C

riter

ion)

TK

1, T

K2,

TK

3=T

d1, T

d2, T

d3 te

mpe

ratu

re -

App

rox.

50

to 8

6˚F

(10

to 3

0˚C

) O

il-eq

ualiz

atio

n ca

pilla

ry tu

bes

shou

ld b

e hi

gher

suf

ficie

ntly

than

out

side

air

tem

pera

ture

and

suc

tion

tem

pera

ture

.•

If te

mpe

ratu

re is

low

, a m

alfu

nctio

n on

che

ck v

alve

s or

clo

ggin

g of

cap

illar

y, s

trai

ner

or d

istr

ibut

or is

con

side

red.

Rep

air

the

defe

ctiv

e pa

rts.

Oil

sepa

rato

r

Hig

h-pr

essu

reS

WH

igh-

pres

sure

SW

Che

ckva

lve

Che

ckva

lve

Che

ck v

alve

Che

ck v

alve

Che

ck v

alve

Che

ckva

lve

Com

pres

sor

1(In

verte

r)

Com

pres

sor

2(In

verte

r)

MM

Y-M

AP

0724

FT∗

(6)

(7)

(2)

(5)

(8)

(1)

(3)

(8)

(4)

Hig

h-pr

essu

re s

enso

r

(T

D2)

(SV

2)(S

V3D

)

(TK

2)

(SV

3B)

(T

D1)

(TK

4)

SV

3E)

TK

5)

(SV

41)

(SV

42)

Oil

head

er

Dis

trib

utor

(T

D3)

(SV

43)

(TK

3)

(SV

3F)

(SV

3C)

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

SV

Com

pres

sor

1(In

verte

r)

Com

pres

sor

2(In

verte

r)

Com

pres

sor

3(In

verte

r)

Oil

sepa

rato

r

Hig

h-pr

essu

reS

WH

igh-

pres

sure

SW

Hig

h-pr

essu

reS

W

MM

Y-M

AP

0964

FT∗

MM

Y-M

AP

1204

FT∗

– 169 –

Circ

uit

TK

1T

K2

TK

3T

K4

TK

5

Con

nect

orC

N53

1 (B

lack

)C

N53

2 (G

reen

)C

N53

3 (P

ink)

CN

534

(Yel

low

)

CN

535

(Red

)

[H08

]

No

Yes

Yes

No

erro

r

No

No

erro

r

Err

or

Err

or

No

Yes

[H16

]

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Oil

leve

l det

ectiv

e te

mpe

ratu

rese

nsor

err

or

TK

1 to

TK

5 se

nsor

Ope

n/S

hort

Oil

leve

l det

ectio

n ci

rcui

t err

orT

K1

tem

pera

ture

det

ectiv

e ci

rcui

ter

ror

(Sub

-cod

e: 0

1)

Sub

-cod

e:01

: TK

1 se

nsor

err

or 0

2: T

K2

sens

or e

rror

03:

TK

3 se

nsor

err

or04

: TK

4 se

nsor

err

or 0

5: T

K5

sens

or e

rror

The

det

ecte

d er

ror

is a

n oi

l lev

el d

etec

tive

tem

pera

ture

sen

sor

erro

r. C

heck

dis

conn

ectio

n of

the

wiri

ng a

nd r

esis

tanc

eva

lue

of th

e se

nsor

.If

the

sens

ors

are

norm

al, r

epla

ce th

e ou

tdoo

r I/F

P.C

. boa

rd.

1. C

omin

g-of

f of T

K1

sens

or, m

isw

iring

,

char

acte

ristic

s er

ror

of r

esis

tanc

e va

lue

2. O

il-eq

ualiz

atio

n ci

rcui

t err

or (

Che

ck v

alve

,

capi

llary

clo

ggin

g, s

trai

ner

clog

ging

)3.

Ref

riger

ant s

tagn

atio

n in

the

com

pres

sor

shel

l

Is n

ot T

K1

sens

orde

tach

ed?

Is th

ere

no m

isw

iring

or

mis

inst

alla

tion

onT

D1/

TD

2/T

D3/

TK

1/T

K2/

TK

3/T

K4/

TK

5se

nsor

s?

Are

char

acte

ristic

s of

TK

1 se

nsor

res

ista

nce

valu

e no

rmal

?

Che

ck th

ecl

oggi

ng o

f SV

3Eva

lve.

(N

ote

1)

Cor

rect

inst

alla

tion

of s

enso

r.

Sen

sor

erro

r

Rep

lace

clo

ggin

g pa

rt.

Rep

lace

SV

3E v

alve

.

Che

ck I/

F P

.C. b

oard

Cor

rect

mis

wiri

ng/m

isin

stal

latio

n.T

D1:

CN

502

whi

te T

D2:

CN

503

pink

TD

3: C

N50

4 bl

ueT

K1:

CN

531,

bla

ck T

K2:

CN

532,

gre

enT

K3:

CN

533,

pin

k T

K4:

CN

534,

yel

low

TK

5: C

N53

5, r

ed

Sta

rt a

test

ope

ratio

n in

CO

OL

or H

EAT

mod

e.

Dis

play

TK

1 se

nsor

tem

pera

ture

on

7-se

gmen

t dis

play

with

SW

01/0

2/03

=[1

] [12

] [2]

.

Che

ck T

K1

sens

or te

mp

appr

ox. 1

0 m

inut

es a

fter

com

pres

sor

1 ha

s op

erat

ed.

If lo

w te

mpe

ratu

re c

ontin

ues

(app

roxi

mat

ely

outs

ide

tem

p) o

r te

mpe

ratu

re h

aslit

tle c

hang

e, a

clo

ggin

g of

str

aine

r of

oil-

equa

lizat

ion

circ

uit,

clog

ging

of

capi

llary

tube

, or

mal

func

tion

of c

heck

val

ve is

con

side

red.

(N

ote

1) R

efer

to th

e ar

ticle

of t

he c

heck

cod

e [H

07].

*See

"O

utdo

or u

nit t

empe

ratu

re s

enso

rch

arac

teris

tics"

on

"9-

9. S

enso

r C

hara

cter

istic

s".

↓↓

Com

p. 1

(inve

rter

)S

trai

ner C

heck

va

lve

Cap

illar

y tu

be

(TK

1)

Err

or

No

Yes

Yes

Yes

No

No

No

erro

r

No

erro

r

Err

or

[H16

]

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Oil

leve

l det

ectio

n ci

rcui

t err

orT

K2

tem

pera

ture

det

ectiv

e ci

rcui

ter

ror

(Sub

-cod

e: 0

2)

1. C

omin

g-of

f of T

K2

sens

or, m

isw

iring

,

cha

ract

eris

tics

erro

r of

res

ista

nce

valu

e2.

Oil-

equa

lizat

ion

circ

uit e

rror

(C

heck

val

ve,

c

apill

ary

clog

ging

, str

aine

r cl

oggi

ng)

3. R

efrig

eran

t sta

gnat

ion

in th

e co

mpr

esso

r sh

ell

Is n

ot T

K2

sens

orde

tach

ed?

Is th

ere

no m

isw

iring

or

mis

inst

alla

tion

onT

D1/

TD

2/T

D3/

TK

1/T

K2/

TK

3/T

K4/

TK

5se

nsor

s?

Are

char

acte

ristic

s of

TK

2se

nsor

resi

stan

ceva

lue

norm

al?

Che

ck th

e cl

oggi

ngof

SV

3E v

alve

.(N

ote

1)

Cor

rect

inst

alla

tion

ofse

nsor

.

Sen

sor

erro

r

Rep

lace

clo

ggin

g pa

rt.

Rep

lace

SV

3E v

alve

.

Che

ck I/

F P

.C. b

oard

Cor

rect

mis

wiri

ng/m

isin

stal

latio

n.T

D1:

CN

502,

whi

teT

D2:

CN

503,

pin

kT

D3:

CN

504,

blu

eT

K1:

CN

531,

bla

ckT

K2:

CN

532,

gre

enT

K3:

CN

533,

pin

kT

K4:

CN

534,

yel

low

TK

5: C

N53

5, r

ed

Sta

rt a

test

ope

ratio

n in

CO

OL

or H

EAT

mod

e.

Dis

play

TK

2 se

nsor

tem

pera

ture

on

7-se

gmen

t dis

play

with

SW

01/0

2/03

=[1

] [13

] [2]

.

Che

ck T

K2

sens

or te

mp

appr

ox. 1

0 m

inut

es a

fter

com

pres

sor

2 ha

s op

erat

ed.

If lo

w te

mpe

ratu

re c

ontin

ues

(app

roxi

mat

ely

outs

ide

tem

p) o

r te

mpe

ratu

re h

aslit

tle c

hang

e, a

clo

ggin

g of

str

aine

r of

oil-

equa

lizat

ion

circ

uit,

clog

ging

of

capi

llary

tube

, or

mal

func

tion

of c

heck

val

ve is

con

side

red.

(N

ote

1) R

efer

to th

e ar

ticle

of t

he c

heck

cod

e [H

07].

Afte

r re

setti

ngth

e po

wer

*See

"O

utdo

or u

nit t

empe

ratu

re s

enso

rch

arac

teris

tics"

on

"9-9

. Sen

sor

Cha

ract

eris

tics"

.

↓ ↓

(TK

2)

Cap

illar

y tu

be

Str

aine

rC

omp.

2(in

vert

er)

Che

ck

valv

e

– 170 –

No

No

Yes

NoYe

s

No

erro

r

No

erro

r

Err

or

Err

or

[H16

]

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Oil

leve

l det

ectio

n ci

rcui

t err

orT

K3

tem

pera

ture

det

ectiv

e ci

rcui

ter

ror

(Sub

-cod

e: 0

3)

1. C

omin

g-of

f of T

K3

sens

or, m

isw

iring

,

cha

ract

eris

tics

erro

r of

res

ista

nce

valu

e2.

Oil-

equa

lizat

ion

circ

uit e

rror

(C

heck

val

ve,

c

apill

ary

clog

ging

, str

aine

r cl

oggi

ng)

3. R

efrig

eran

t sta

gnat

ion

in th

e co

mpr

esso

r sh

ell

Is n

ot T

K3

sens

orde

tach

ed?

Is th

ere

no m

isw

iring

or

mis

inst

alla

tion

onT

D1/

TD

2/T

D3/

TK

1/T

K2/

TK

3/T

K4/

TK

5 se

nsor

s?

Are

char

acte

ristic

s of

TK

3 se

nsor

res

ista

nce

valu

e no

rmal

?

Che

ck th

e cl

oggi

ngof

SV

3E v

alve

.(N

ote

1)

Cor

rect

inst

alla

tion

of s

enso

r.

Sen

sor

erro

r →

repl

ace

Rep

lace

clo

ggin

g pa

rt.

Rep

lace

SV

3E v

alve

.

Che

ck I/

F P

.C. b

oard

Cor

rect

mis

wiri

ng/m

isin

stal

latio

n.T

D1:

CN

502,

whi

te, T

D2:

CN

503,

pin

k T

D3:

CN

504,

blu

eT

K1:

CN

531,

bla

ck, T

K2:

CN

532,

gre

enT

K3:

CN

533,

pin

k, T

K4:

CN

534,

yel

low

TK

5: C

N53

5, r

ed

Afte

r re

setti

ngth

e po

wer

Sta

rt a

test

ope

ratio

n in

CO

OL

or H

EAT

mod

e.

Dis

play

TK

3 se

nsor

tem

pera

ture

on

7-se

gmen

t dis

play

with

SW

01/0

2/03

=[1

] [14

] [2]

.

Che

ck T

K3

sens

or te

mp

appr

ox. 1

0 m

inut

es a

fter

com

pres

sor

3 ha

s op

erat

ed.

If lo

w te

mpe

ratu

re c

ontin

ues

(app

roxi

mat

ely

outs

ide

tem

p) o

r te

mpe

ratu

re h

aslit

tle c

hang

e, a

clo

ggin

g of

str

aine

r of

oil-

equa

lizat

ion

circ

uit,

clog

ging

of

capi

llary

tube

, or

mal

func

tion

of c

heck

val

ve is

con

side

red.

(Not

e 1)

Ref

er to

the

artic

le o

f the

che

ck c

ode

[H07

].

*See

"O

utdo

or u

nit t

empe

ratu

re s

enso

rch

arac

teris

tics"

on

"9-

9. S

enso

r C

hara

cter

istic

s".

↓ ↓

(TK

3)

Cap

illar

y tu

be

Str

aine

rC

omp.

3(in

vert

er)

Che

ck

valv

e

Yes

Yes

Yes

No C

heck

the

clog

ging

of S

V3E

val

ve.

No

No

No

erro

r

No

erro

r

Err

or

[H16

]

Err

or

Che

ck c

ode

Cau

seC

heck

cod

e na

me

TK

4 te

mpe

ratu

re d

etec

tive

circ

uit

erro

r(S

ub-c

ode:

04)

1. C

omin

g-of

f of T

K4

sens

or, m

isw

iring

,

cha

ract

eris

tics

erro

r of

res

ista

nce

valu

e2.

Mal

func

tion

of S

V3E

val

ve c

ircui

t (C

heck

val

ve,

c

apill

ary

clog

ging

, str

aine

r cl

oggi

ng)

3. R

efrig

eran

t sta

gnat

ion

in th

e co

mpr

esso

r sh

ell

Is n

ot T

K4

sens

orde

tach

ed?

Is th

ere

no m

isw

iring

or

mis

inst

alla

tion

onT

D1/

TD

2/T

D3/

TK

1/T

K2/

TK

3/T

K4/

TK

5se

nsor

s?

Are

char

acte

ristic

s of

TK

4 se

nsor

res

ista

nce

valu

e no

rmal

?

Che

ck th

e cl

oggi

ngof

SV

3E v

alve

.(N

ote

1)

Cor

rect

inst

alla

tion

of s

enso

r.r.

Sen

sor

erro

r →

repl

ace

Rep

lace

clo

ggin

g pa

rt (

capi

llary

).

Rep

lace

SV

3E v

alve

.

Che

ck I/

F P

.C. b

oard

Cor

rect

mis

wiri

ng/m

isin

stal

latio

n.T

D1:

CN

502,

whi

te, T

D2:

CN

503,

pin

k T

D3:

CN

504,

blu

eT

K1:

CN

531,

bla

ck, T

K2:

CN

532,

gre

enT

K3:

CN

533,

pin

k, T

K4:

CN

534,

yel

low

TK

5: C

N53

5, r

ed

Sta

rt a

test

ope

ratio

n in

CO

OL

or H

EAT

mod

e.

Dis

play

TK

4 se

nsor

tem

pera

ture

on

7-se

gmen

t dis

play

with

SW

01/0

2/03

=[1

] [15

] [2]

.

Che

ck T

K4

sens

or te

mp

appr

ox. 1

0 m

inut

es a

fter

com

pres

sor

has

oper

ated

.If

low

tem

pera

ture

con

tinue

s (a

ppro

xim

atel

y ou

tsid

e te

mp)

or

tem

pera

ture

has

little

cha

nge,

clo

ggin

g of

the

para

llel c

apill

ary

tube

is c

onsi

dere

d.

(N

ote

1) R

efer

to th

e ar

ticle

of t

he c

heck

cod

e [H

07].

Afte

r re

setti

ngth

e po

wer

*See

"O

utdo

or u

nit t

empe

ratu

re s

enso

r ch

arac

teris

tics"

on

"9-9

. Sen

sor

Cha

ract

eris

tics"

.

↓ ↓

(SV3C)

SV

(TK

4)

Cap

illar

y tu

be

Str

aine

r

– 171 –

No

Yes

Yes

Yes

No

Err

or

No

erro

r

No

[H16

]C

heck

cod

eC

ause

Che

ck c

ode

nam

e

TK

5 te

mpe

ratu

re d

etec

tive

circ

uit

erro

r(S

ub-c

ode:

05)

1. C

omin

g-of

f of T

K5

sens

or, m

isw

iring

,

cha

ract

eris

tics

erro

r of

res

ista

nce

valu

e2.

Mal

func

tion

or c

logg

ing

of S

V3E

val

ve3.

Oil-

equa

lizat

ion

circ

uit e

rror

(C

apill

ary

or

s

trai

ner

clog

ging

)4.

Ref

riger

ant s

tagn

atio

n in

the

com

pres

sor

shel

l

Is n

ot T

K5

sens

orde

tach

ed?

C

orre

ct in

stal

latio

n of

sen

sor.

Sen

sor

erro

r →

rep

lace

Che

ck I/

F P

.C. b

oard

Rep

lace

SV

3E v

alve

.

Is th

ere

no m

isw

iring

or

mis

inst

alla

tion

onT

K1/

TK

2/T

K3/

TK

4/T

K5,

T

D1/

TD

2/T

D3

sens

ors?

Are

char

acte

ristic

s of

TK

5 se

nsor

res

ista

nce

valu

e no

rmal

?

Che

ck th

e cl

oggi

ng o

f SV

3E v

alve

.(N

ote

1)

Cor

rect

mis

wiri

ng/m

isin

stal

latio

n.T

K1:

CN

531,

bla

ck, T

K2:

CN

532,

gre

enT

K3:

CN

533,

pin

k, T

K4:

CN

534,

yel

low

TK

5: C

N53

5, r

edT

D1:

CN

502

whi

te, T

D2:

CN

503

pink

TD

3: C

N50

4 bl

ue

(N

ote

1) R

efer

to th

e ar

ticle

of t

he c

heck

cod

e [H

07].

[L02

]C

heck

cod

eC

ause

Che

ck c

ode

nam

e

Out

door

uni

ts m

odel

disa

gree

d er

ror

1. N

ot c

orre

spon

ds to

Air

to A

ir H

eat E

xcha

nger

type

.2.

Whe

n ou

tdoo

r un

it is

con

nect

ed

Yes

Yes

[L03

]

[L04

]

No

No

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

1) C

heck

whe

ther

the

conn

ectio

n on

rem

ote

cont

rolle

rs (

grou

p an

d/or

indi

vidu

al)

has

been

cha

nged

sin

ce th

e

gro

up c

onfig

urat

ion

and

addr

ess

chec

king

on

the

rem

ote

cont

rolle

rs fi

nish

ed.

2) If

the

grou

p co

nfig

urat

ion

and

addr

ess

are

norm

al w

hen

pow

er h

as b

een

turn

ed o

n, th

e m

ode

auto

mat

ical

ly

shi

fts to

add

ress

set

up m

ode.

For

set

ting

up a

ddre

sses

aga

in, r

efer

to "

Add

ress

set

up".

Dup

licat

ed in

door

hea

der

units

The

re a

re tw

o or

mor

e in

door

hea

der

units

in a

gr

oup

durin

g gr

oup

cont

rol.

Dup

licat

ed s

etup

of o

utdo

or li

nead

dres

sO

utdo

or li

ne a

ddre

sses

are

dup

licat

ed.

Is th

ere

dupl

icat

edlin

e ad

dres

s se

tup?

Are

com

mun

icat

ion

wire

con

nect

ions

of

[U1.

U2]

, [U

3.U

4], a

nd[U

5, U

6]

norm

al?

Cor

rect

the

line

addr

ess

setu

p.

Che

ck o

utdo

or I/

F P

.C. b

oard

.Fa

ilure

→ R

epla

ce

Cor

rect

the

wire

con

nect

ion.

Re-

set u

p th

e ad

dres

s.(R

efer

to "

Add

ress

set

up".

)

– 172 –

[L06

]

Sub

-cod

e: a

mm

ount

of i

ndoo

r un

its w

ith p

riorit

y

[L07

]

Yes

Yes

No

No

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Dup

licat

ed in

door

uni

ts w

ith p

riorit

y(D

ispl

ayed

on

the

indo

or u

nits

oth

er th

anon

es w

ith p

riorit

y an

d on

the

outd

oor u

nit)

Two

or m

ore

indo

or u

nits

with

prio

rity

are

dupl

icat

ed.

A g

roup

line

is c

onne

cted

to a

n in

divi

dual

indo

or

unit.

Whe

n pr

iorit

y is

giv

en to

two

or m

ore

indo

or u

nits

, thi

s ch

eck

code

is d

ispl

ayed

on

indo

or u

nits

oth

er th

an th

e un

itsse

t as

prio

r on

es a

nd th

e ou

tdoo

r un

it.•

As

only

one

indo

or u

nit w

ith p

riorit

y is

val

id, c

hang

e th

e se

tup.

A g

roup

line

exis

ts in

an

indi

vidu

alin

door

uni

t

Is th

ere

grou

p ca

blin

g?

The

re is

indi

vidu

al in

door

unit.

Che

ck th

e ad

dres

ses

of s

etup

CO

DE

No.

12,

13,

and

14.

Cor

rect

indo

or g

roup

add

ress

.

Che

ck in

door

P.C

. boa

rd.

Failu

re →

Rep

lace

[L05

]C

heck

cod

eC

ause

Che

ck c

ode

nam

e

Dup

licat

ed in

door

uni

ts w

ithpr

iorit

y(D

ispl

ayed

on

indo

or u

nit w

ithpr

iorit

y)

Thi

s ch

eck

code

is d

ispl

ayed

on

the

indo

or u

nit s

et a

s a

prio

r on

e w

hen

two

or m

ore

prio

r in

door

uni

ts a

re d

etec

ted.

• P

riorit

y se

tup

with

two

or m

ore

units

is n

ot a

vaila

ble.

As

only

one

indo

or u

nit w

ith p

riorit

y is

val

id, c

hang

e th

ese

tup.

Two

or m

ore

prio

r in

door

uni

ts e

xist

.[L

08]

No

No

Yes

Yes

[L09

]

[L10

]

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

I/F P

.C. b

oard

A's

sy s

ervi

ce fo

r th

e ou

tdoo

r un

it is

com

mon

to th

is s

erie

s. A

set

up fo

r m

odel

sel

ectio

n di

ffere

ntfr

om th

at fo

r P.

C. b

oard

with

trou

ble

is n

eces

sary

. Set

up

a m

odel

bas

ed u

pon

the

P.C

. boa

rd A

'ssy

exc

hang

epr

oced

ure.

Indo

or u

nit a

ddre

ss is

uns

etIn

door

gro

up /

addr

ess

unse

t

Indo

or u

nit's

cap

acity

is u

nset

Indo

or c

apac

ity u

nset

On

the

outd

oor

IF P

.C. b

oard

for

serv

ice,

the

mod

else

lect

ing

jum

per

has

not b

een

set u

p so

as

to

mat

ch w

ith th

e m

odel

.

Out

door

cap

acity

uns

et

Are

pow

ers

of a

ll th

ein

door

uni

ts tu

rned

on?

Are

cap

acity

set

ups

ofin

door

uni

ts u

nset

?

Turn

on

the

pow

er o

f ind

oor

units

.

Turn

on

the

pow

er o

f out

door

unit

agai

n.

Set

up

capa

city

dat

a of

indo

or u

nit.

(Set

up C

OD

E N

o. (

DN

) =

11)

Che

ck in

door

P.C

. boa

rd.

Def

ect →

Rep

lace

Re-

exec

ute

addr

ess

setu

p.(R

efer

to "

Add

ress

set

up".

)

Dis

conn

ect c

onne

ctor

sbe

twee

n [U

1, U

2] a

nd [U

3, U

4].

Cle

ar a

ddre

sses

.(R

efer

to "

Add

ress

cle

ar".

)

Not

e) T

his

code

is d

ispl

ayed

whe

n th

e po

wer

is tu

rned

on

at th

e fir

st ti

me

afte

r in

stal

latio

n. (

Bec

ause

the

addr

ess

is

not

yet

set

up)

– 173 –

[L17

]

No

[L20

]

No

No

[L28

]

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

In c

ase

that

SH

RM

-i is

con

nect

ed w

ith a

noth

erou

tdoo

r un

it (S

MM

-i)In

com

patib

le c

ombi

natio

n of

outd

oor

units

Cen

tral

con

trol

add

ress

es a

re d

uplic

ated

.D

uplic

ated

cen

tral

con

trol

Cen

tral

ad

dres

ses

Qua

ntity

ove

r of

con

nect

edou

tdoo

r un

its

Are

not

two

or m

ore

cent

ral c

ontr

ol d

evic

es

whi

ch h

ave

sam

e ne

twor

k ad

dres

sco

nnec

ted?

Is th

e n

umbe

r of

the

conn

ecte

d ou

tdoo

run

its 3

or

less

?

Is th

eco

mm

unic

atio

nlin

e be

twee

n ou

tdoo

run

its c

orre

ctly

conn

ecte

d?

Cor

rect

the

netw

ork

addr

ess

of th

e ce

ntra

l con

trol

sys

tem

.

Max

. 3 o

utdo

or u

nits

are

conn

ecta

ble

for

one

syst

em.

Cor

rect

con

nect

ion

of th

eco

mm

unic

atio

n lin

e.

Che

ck I/

F P

.C. b

oard

.

Che

ck th

e ne

twor

k ad

apto

r on

the

indo

or P

.C. b

oard

.

No

Yes

Yes

Yes

Yes

[L18

] C

heck

cod

eC

ause

Che

ck c

ode

nam

e

As

Coo

ling-

only

set

ting

was

forg

otte

n ag

ains

t C

oolin

g-on

ly in

door

uni

t, he

atin

g op

erat

ion

star

ted.

FS

uni

t err

or

Was

C

oolin

g-on

ly s

et a

gain

st

Coo

ling-

only

indo

or u

nit?

Set

Coo

ling-

only

set

ting.

DN

= 0

F

Che

ck C

oolin

g/H

eatin

g F

S u

nit.

1. Q

uant

ity o

ver

of c

onne

cted

out

door

uni

ts.

2. C

onne

ctio

n er

ror

of c

omm

unic

atio

n lin

e be

twee

n

out

door

uni

ts3.

Out

door

I/F

P.C

. boa

rd e

rror

[L29

]

No

Yes

Yes

Yes

Yes

Yes

No

No

No

No

Sub

-cod

e

01 02 03 04 05 06 07 08 09

12

A3-

IPD

U3

0A 0B 0C 0D 0E 0F

12

A3-

IPD

U

O O

O O O O O O

3O O O O O

O O O O

O O O O

O O O

O O O O

O O O O

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Is ju

mpe

rse

tup

of o

utdo

or I/

FP.

C. b

oard

cor

rect

?(C

heck

jum

pers

8, 9

,10

, 11

and

12)

Isco

mm

unic

atio

nco

nnec

tor

betw

een

IPD

Uan

d I/F

P.C

. boa

rdco

nnec

ted?

Is th

ere

no d

isco

nnec

tion

ofco

mm

unic

atio

n lin

e be

twee

nIP

DU

and

I/F

P.C

.bo

ard?

*

Is th

ere

volta

ge fl

uctu

atio

nbe

twee

n 4

and

5 pi

ns o

fC

N60

0 on

I/F

P.C

. boa

rd?

(Mea

sure

men

t by

test

er:

DC

0 to

5V,

5 pi

n G

ND

)

Is th

ere

volta

ge fl

uctu

atio

nbe

twee

n 3

and

5 pi

ns o

fC

N60

0 on

I/F

P.C

. boa

rd?

(Mea

sure

men

t by

test

er:

DC

0 to

5V,

5 pi

n G

ND

),

Cor

rect

con

nect

ion

of c

onne

ctor

.

Cor

rect

con

nect

ion

of c

onne

ctor

.

Rep

lace

com

mun

icat

ion

line.

I/F P

.C. b

oard

err

or

I/F P

.C. b

oard

err

or

Rep

lace

the

trou

bled

IPD

U P

.C. b

oard

.

IPD

U q

uant

ity e

rror

1. In

corr

ect m

odel

set

up in

ser

vice

for I

/F P

.C. b

oard

2. C

omm

unic

atio

n er

ror b

etw

een

A3-

IPD

U, f

an IP

DU

a

nd I/

F3.

A3-

IPD

U, f

an IP

DU

, I/F

P.C

. boa

rd e

rror

Fan

IPD

UFa

nIP

DU

O: I

PD

U e

rror

par

t

In th

e ca

se th

at A

ll IP

DU

s (A

3- IP

DU

s an

d fa

n IP

DU

s) d

o no

tre

turn

resp

onse

.* T

wo

A3-

IPD

Us

(NO

. 1 a

nd 2

) exi

st in

8, 1

0 H

P m

odel

s.In

12

or 1

4 H

P m

odel

s, th

ree

A3-

IPD

Us

(No.

1, 2

, 3) e

xist

.

– 174 –

No

[L31

]

No

No

[P01

]

* F

or th

e m

odel

s eq

uipp

ed w

ith A

C fa

n m

otor

onl

y

Yes

Yes

Yes

Yes

Yes

No

No

[L30

] C

heck

cod

eC

ause

Che

ck c

ode

nam

e

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Abn

orm

al in

put f

rom

the

outs

ide

Inte

rlock

in in

door

uni

t fro

m

outs

ide

Oth

er IP

DU

err

ors

Is o

utsi

de d

evic

eco

nnec

ted

to c

onne

ctor

CN

80?

Doe

s ou

tsid

e de

vice

corr

ectly

ope

rate

?

Is th

ere

any

trou

ble

of o

utdo

or u

nit p

ower

supp

ly?

Is th

ere

noco

nnec

tion

erro

r or

disc

onne

ctio

n of

CN

076

conn

ecto

r?

Is n

ot th

ere

lock

of f

anm

otor

?

Che

ck in

door

P.C

. boa

rd.

Failu

re →

Rep

lace

Che

ck o

utsi

de d

evic

e.Fa

ilure

→ R

epla

ce

Che

ck p

ower

vol

tage

and

line

.C

heck

aux

iliat

y no

ise,

etc

.

Cor

rect

cab

ling

circ

uit f

orth

e co

nnec

tor

conn

ectio

n.

Rep

lace

fan

mot

or.

Che

ck in

door

P.C

. boa

rd.

Failu

re →

Rep

lace

Che

ck o

utdo

or I/

F P

.C.

boar

d.

Che

ck c

ause

of a

bnor

mal

inpu

t.

1. O

utdo

or u

nit p

ower

err

or2.

Out

door

I/F

P.C

. boa

rd e

rror

Indo

or fa

n m

otor

err

or1.

Wiri

ng e

rror

2. C

heck

fan

mot

or.

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No

No

No

[P03

]C

heck

cod

eC

ause

Che

ck c

ode

nam

e

Dis

char

ge te

mp

TD

1 er

ror

Are

ser

vice

valv

e of

gas

and

liqu

idsi

des

fully

ope

ned?

Is o

utdo

or P

MV

nor

mal

?1.

Con

nect

or c

onne

ctio

n2.

Wiri

ng 3

. Coi

l 4. V

alve

bod

y5.

Out

door

I/F

P.C

. boa

rd

Ope

n se

rvic

e va

lve

fully

.

Rep

air

outd

oor

PM

V.

Rep

lace

TD

1 se

nsor

.

Che

ck 4

-way

val

ve.

Cor

rect

inst

alla

tion

of v

alve

coil.

Rep

lace

SV

41 v

alve

.

1. S

ervi

ce v

alve

of o

utdo

or u

nit c

lose

d2.

Out

door

PM

V e

rror

3. T

D s

enso

r er

ror

4. R

efrig

eran

t sho

rtag

e, c

logg

ing

of re

frige

rant

pip

ing

5. 4

-way

val

ve e

rror

6. S

V4

circ

uit l

eaka

ge, m

isin

stal

latio

n7.

SV

5 ci

rcui

t lea

kage

8. S

V6

circ

uit c

logg

ing

9. In

corr

ect p

ipin

g of

dis

char

ge g

as /

suct

ion

gas

pipe

s10

. Coo

ling/

Hea

ting

FS

uni

t err

or

Are

char

acte

ristic

s of

TD1

sens

or re

sist

ance

norm

a

Doe

sdi

scha

rged

ref

riger

ant

gas

leak

to s

uctio

n si

deth

roug

h 4-

way

valv

e?

Con

nect

ors:

PM

V1:

CN

300,

PM

V2:

CN

301,

PM

V4:

CN

303

* S

ee "

Out

door

uni

t tem

pera

ture

sen

sor

char

acte

ristic

s" o

n "9

-9. S

enso

r C

hara

cter

istic

s".

No

Cor

rect

wiri

ng

Ref

riger

ant s

hort

age,

clog

ging

, pip

e br

eaka

ge

Are

indo

or u

nits

of a

diffe

rent

ref

riger

ant l

ine

conn

ecte

d?(C

heck

it u

sing

the

mis

wiri

ng c

heck

func

tion

of th

e ou

tdoo

r un

it.)

(Che

ck th

ere

is n

o pi

pe b

reak

age,

and

then

rec

harg

e th

e re

frig

eran

t.)

AB

NO

RM

AL

SV

5 ci

rcui

t le

akag

e ch

eck

Rep

lace

def

ectiv

e pa

rts.

AB

NO

RM

AL

NO

RM

AL

SV

6 ci

rcui

t cl

oggi

ng c

heck

Rep

lace

def

ectiv

e pa

rts.

AB

NO

RM

AL

NO

RM

AL

Che

ck

inco

rrec

t mai

n pi

ping

of

disc

harg

e ga

s/su

ctio

n ga

s.C

orre

ct p

ipin

g to

nor

mal

pip

ing.

No

NO

RM

AL

Is C

oolin

g/H

eatin

g F

S u

nit n

orm

al?

Rep

air

Coo

ling/

Hea

ting

FS

un

it.

SV

4 ci

rcui

t1.

Are

SV

41, S

V42

and

SV

43

valv

e co

ils in

stal

led

corr

ectly

?2.

Is S

V41

circ

uit s

eale

dco

rrec

tly (

no le

akag

e)?

– 175 –

(A)Ye

s

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No

No

No

Yes

No

No

No

[P04

]C

heck

cod

eC

ause

Che

ck c

ode

nam

e

Err

or c

once

rnin

g hi

gh-p

ress

ure

SW

1. H

igh-

pres

sure

SW

err

or, 2

. Ser

vice

val

ve c

lose

d3.

Pd

sens

or e

rror

, 4. I

ndoo

r/ou

tdoo

r fa

n er

ror

5. In

door

/out

door

PM

V c

hoke

6. In

door

/out

door

hea

t exc

hang

er c

logg

ing,

air

s

hort

circ

uit,

7. S

V2

circ

uit e

rror

8. S

V4

circ

uit e

rror

, 9. S

V5

circ

uit e

rror

10. D

isch

arge

line

che

ck v

alve

mal

func

tion

11. R

efrig

eran

t ove

rcha

rge

Sub

-cod

e:01

: Com

pres

sor

1, 0

2: C

ompr

esso

r 2,

03:

Com

pres

sor

3 N

ote)

Hig

h-pr

essu

re S

W is

norm

ally

clo

sed.

(B

con

tact

)

Doe

s hi

gh-p

ress

ure

SW

oper

ate?

Are

par

ts

of h

ighp

ress

ure

SW

no

rmal

?

Is s

ervi

ce v

alve

fully

open

ed?

Are

ch

arac

teris

tics

ofhi

gh-p

ress

ure

sens

orno

rmal

?

Doe

s co

olin

g ou

tdoo

rfa

n no

rmal

ly o

pera

te?

Is th

ere

any

inte

rfer

ence

of h

ea-

texc

hang

ing

of o

utdo

or u

nit?

1. H

eat e

xcha

nger

clo

ggin

g2.

Air

shor

t circ

uit

Is th

ere

any

crac

k or

com

ing-

off o

f fan

?

Con

nect

or c

onne

ctio

n, fa

nIP

DU

, fan

mot

or, w

iring

Con

nect

ors:

PM

V1:

CN

300,

PM

V2:

CN

301,

PM

V4:

CN

303

Che

ck p

arts

.Fa

ilure

→ R

epla

ce

Ope

n se

rvic

e va

lve

fully

.

Rep

lace

the

high

pres

sure

sens

or.

Rep

air

faul

ty p

arts

.

Rep

air

outd

oor

PM

V.

Elim

inat

e th

ein

terf

eren

ce.

Che

ck A

3-IP

DU

P.C

. boa

rd.

Failu

re →

rep

lace

(B)

All

cool

ing

oper

atio

n

All

cool

ing

→To

(B

)A

ll he

atin

g →

To

(C)

Re

set p

ower

sup

ply,

and

star

t a te

stop

erat

ion

corre

spon

ded

to th

e se

ason

.

Is o

utdo

or P

MV

nor

mal

?1.

Con

nect

or c

onne

ctio

n2.

Cab

ling,

3. C

oil

4. V

alve

bod

y5.

Out

door

I/F

P.C

. boa

rd

AB

NO

RM

AL

AB

NO

RM

AL

AB

NO

RM

AL

NO

RM

AL

NO

RM

AL

NO

RM

AL

Yes

No

Is c

ircui

t cab

ling

norm

al?

Che

ck a

nd c

orre

ctca

blin

g.

Is

Coo

ling/

Hea

ting

FS

un

it no

rmal

?R

epai

r C

oolin

g/H

eatin

g F

S u

nit.

Che

ck

inco

rrec

t pip

ing

of d

isch

arge

ga

s/su

ctio

n ga

s m

ain

pipi

ng.

Cor

rect

pip

ing

to n

orm

al

pipi

ng.

Che

ck

PM

V4,

SV

12 v

alve

op

erat

ion.

Rep

lace

def

ectiv

e pa

rts.

AB

NO

RM

AL

AB

NO

RM

AL

NO

RM

AL

NO

RM

AL

No

No

No

No No

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

No

(C)

(A)

Is S

V2

circ

uit n

orm

al?

Is S

V4

circ

uit n

orm

al?

Doe

s he

atin

gin

door

fan

norm

ally

oper

ate?

Are

con

nect

orco

nnec

tion,

con

dens

er,

fan

mot

or a

nd fa

nno

rmal

?

Is c

onne

ctor

con

nect

ion

and

coil

norm

al?

Is th

ere

clog

ging

on a

ny v

alve

?

Are

char

acte

ristic

sof

TC

2 an

d T

CJ

sens

orre

sist

ance

val

ueno

rmal

?

Is in

door

PM

Vno

rmal

?

(Che

ck it

usi

ng th

em

isw

iring

che

ck fu

nctio

nof

the

outd

oor

unit.

)

Are

any

indo

or u

nits

of d

iffer

ent r

efrig

eran

tlin

e co

nnec

ted?

Is th

ere

any

inte

rfere

nce

of

heat

exch

angi

ng o

f ind

oor u

nit?

1. F

ilter

clo

ggin

g2.

Hea

t exc

hang

er c

logg

ing

3. A

ir sh

ort c

ircui

t

Rep

air

SV

2 ci

rcui

t.

Rep

air

SV

4 ci

rcui

t.(C

oil e

rror

, clo

ggin

g,di

scon

nect

ion

ofw

iring

, etc

.)

Rep

air

faul

ty p

arts

.

Rep

air

faul

ty p

arts

.

Elim

inat

e th

ein

terf

eren

ce.

Che

ck a

nd c

orre

ct th

ew

iring

.

Rep

lace

TC

2 an

d/or

TC

J se

nsor

.

Ref

riger

ant o

verc

harg

e,cl

oggi

ng, p

ipe

brea

kage

, abn

orm

alov

erlo

ad c

ondi

tion

Che

ck in

door

P.C

. boa

rd.

Failu

re →

Rep

lace

All

heat

ing

oper

atio

nRe

frige

rant

over

char

ge, c

logg

ing,

pipe

bre

akag

e,ab

norm

al o

verlo

adco

nditio

n

Coi

l err

or, c

logg

ing,

disc

onne

ctio

n of

wiri

ng, e

tc.

Rep

air

faul

ty p

arts

.

Rep

lace

4-w

ay v

alve

.

Rep

lace

def

ectiv

e pa

rts.

Che

ck

4-w

ay v

alve

ope

ratio

n.

Che

ck

SV

11 c

ircui

t clo

ggin

g.

– 176 –

[P05

]

Yes

Yes

Yes

Yes

Yes

* F

T9

: 208

/230

V ±

10%

F

T6

: 460

V ±

10%

No

No

No

No

No

[P07

]

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Pha

se e

rror

det

ecte

d, p

ower

failu

re d

etec

ted,

abn

orm

al in

vert

erD

C v

olta

ge (

on c

ompr

esso

r)

Pha

se e

rror

or

pow

er fa

ilure

of t

he p

ower

sup

ply

toth

e ou

tdoo

r un

it

Sub

-cod

e: 0

0: P

hase

err

or/p

ower

failu

re is

det

ecte

d. 0

1: A

bnor

mal

inve

rter

DC

vol

tage

on

Com

pres

sor

1,02

: Abn

orm

al in

vert

er D

C v

olta

ge o

n C

ompr

esso

r 2,

03:

Abn

orm

al in

vert

er D

C v

olta

ge o

n C

ompr

esso

r 3

Sub

-cod

e:01

: Com

pres

sor

1,02

: Com

pres

sor

2,03

: Com

pres

sor

3

• C

heck

the

phas

e of

the

pow

er li

ne to

the

outd

oor

unit.

• C

heck

err

or o

f out

door

I/F

P.C

. boa

rd.

• C

heck

ther

e ar

e no

loos

ened

con

nect

ors,

etc

.•

Che

ck c

onne

ctio

n w

iring

of M

G-C

TT.

• C

heck

ope

ratio

n of

MG

-CT

T.

Hea

t sin

k ov

erhe

at e

rror

1. P

ower

vol

tage

err

or2.

Out

door

fan

syst

em e

rror

3. H

eat s

ink

inst

alla

tion

erro

r4.

Clo

ggin

g of

the

cool

ing

duct

for

the

heat

sin

k5.

A3-

IPD

U P

.C. b

oard

err

or

Is p

ower

vol

tage

norm

al?*

Is

wiri

ng o

f A3-

IPD

Uno

rmal

?

Is in

door

fan

norm

al?

Are

scr

ews

fixin

gA

3-IP

DU

and

hea

tsi

nk lo

osen

ed?

Is th

ere

nocl

oggi

ng o

f hea

tsi

nk c

oolin

g du

ct?

Cor

rect

pow

er li

ne.

Cor

rect

wiri

ng to

com

pres

sor

or c

onne

ctor

conn

ectio

n.

Che

ck fa

n an

d fa

n m

otor

.r.

Tig

hten

scr

ews.

Cle

ar c

logg

ing.

Che

ck A

3-IP

DU

P.C

.bo

ard.

Yes

Yes

Yes

Yes

Yes

No

No

No

No

No

* C

heck

ther

e is

208

/230

V v

olta

ge o

f 1-3

pin

of C

N68

on

indo

or P

.C. b

oard

.

[P10

]

Sub

-cod

e: O

verf

low

ing

indo

or u

nit's

add

ress

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Is fl

oat S

Wco

nnec

tor (

Indo

orco

ntro

l P.C

. boa

rdC

N34

) con

nect

edno

rmal

ly?

Doe

s flo

at S

Wop

erat

e?

Is w

iring

nor

mal

?

Doe

s dr

ain

pum

pop

erat

e?

Is p

ower

sup

ply

todr

ain

pum

p no

rmal

?*

Cor

rect

con

nect

or c

onne

ctio

n.

Che

ck a

nd c

orre

ct w

iring

.

Che

ck in

door

P.C

. boa

rd.

Failu

re →

Rep

lace

Che

ck in

door

P.C

. boa

rd.

Failu

re →

Rep

lace

Che

ck d

rain

pip

e, e

tc.

Rep

lace

dra

in p

ump,

and

che

ck c

ablin

g.

Wat

er o

verf

low

in a

n in

door

uni

t1.

Flo

at S

W m

alfu

nctio

n2.

Dra

in p

ump

mal

func

tion

3. C

logg

ing

of d

rain

pip

e4.

Indo

or P

.C. b

oard

err

or

– 177 –

No

No

No

No

No

[P12

]

CN

333

CN

334

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Indo

or fa

n m

otor

err

or1.

Wiri

ng e

rror

of f

an m

otor

con

nect

or2.

Fan

mot

or e

rror

3. In

door

P.C

. boa

rd e

rror

Turn

off

pow

er s

uppl

y.*

Det

ecta

ble

in m

odel

equ

ippe

d w

ith D

C fa

n m

otor

(4-w

ay c

asse

tte, 2

-way

cas

sette

, 1-w

ay c

asse

tte,

conc

eale

d du

ct, w

all a

nd c

eilin

g ty

pes)

Doe

s fa

n tu

rnw

ithou

t tro

uble

whe

ntu

rnin

g it

with

hand

s?

Is

ther

e co

nnec

tion

erro

r or d

isco

nnec

tion

on

conn

ecto

rCN

333,

CN

334

of

indo

or P

.C. b

oard

(M

CC

-140

2,

MC

C-1

570)

?

Isre

sista

nce

valu

ebe

twee

n ea

ch p

hase

at

mot

or s

ide

of fa

n m

otor

con

nect

orC

N33

3 on

indo

or P

.C.

boar

d (M

CC

-140

2,

MC

C-1

570)

corre

ct?

*1

Is

resi

stan

ce v

alue

at

mot

or s

ide

of fa

nm

otor

con

nect

or C

N33

4 on

indo

or P

.C. b

oard

(MC

C-1

402,

M

CC

-157

0)

corr

ect?

*2

Is o

utpu

tof

indo

or fa

n m

otor

posi

tion

dete

ctiv

e si

gnal

corr

ect?

*3

Cor

rect

con

nect

or c

onne

ctio

n.

Rep

lace

indo

or fa

n m

otor

.

Rep

lace

indo

or fa

n m

otor

.

Rep

lace

indo

or fa

n m

otor

.

Rep

lace

indo

or fa

n m

otor

.

Che

ck in

door

P.C

. boa

rd(M

CC

-140

2, M

CC

-157

0).

Failu

re →

Rep

lace

Rem

ove

conn

ecto

rs C

N33

3 an

d C

N33

4 on

in

door

P.C

. boa

rd (

MC

C-1

402,

MC

C-1

570)

.

*1 • Is

not

win

ding

1 (

Red

lead

) to

3 (

Whi

te le

ad),

3 (

Whi

te le

ad)

to 5

(B

lack

lead

), 5

(B

lack

le

ad)

to 1

(R

ed le

ad)

open

ed/s

hort

ed?

→ R

esis

tanc

e va

lue

shou

ld s

atis

fy th

e fo

llow

s.[4

-way

Cas

sette

type

]A

P01

5 to

AP

030:

App

rox.

70

to 1

00Ω

AP

036

to A

P04

2: A

ppro

x. 3

5 to

50Ω

[Cei

ling

type

]A

P01

8 to

AP

024:

App

rox.

30

to 7

0ΩA

P03

6 to

AP

042:

App

rox.

20

to 5

0Ω[H

igh

wal

l typ

e]A

ppro

x. 7

0 to

100

Ω•

Is n

ot g

roun

ded

betw

een

cabi

net a

nd 1

, 3, 5

? →

Sho

uld

be 1

0MΩ

or

mor

e.

*2 *3

Yes

Yes

Yes

Yes

Yes

Che

ck fa

n m

otor

pos

ition

det

ectiv

e si

gnal

.•

Mea

sure

vol

tage

with

test

er b

etw

een

1 an

d 5

of C

N33

4 on

ind

oor

P.C

. boa

rd (

MC

C-1

402,

MC

C-1

570)

und

er c

ondi

tion

of C

N33

3 a

nd C

N33

4 in

stal

led

and

pow

er-O

N. →

Tur

n fa

n sl

owly

with

han

ds s

o th

at p

in v

olta

ge fl

uctu

ates

bet

wee

n 0

and

5V.

• B

etw

een

4 an

d 5:

5V

Che

ck r

esis

tanc

e va

lue

of fa

n m

otor

pos

ition

det

ectiv

e ci

rcui

t.•

Is n

ot w

indi

ng 1

(Ye

llow

lead

) to

4 (

Pin

k le

ad)

ope

ned/

shor

ted?

→ R

esis

tanc

e sh

ould

be

5 to

20k

Ω.

No

No

No

No

No

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

[P13

]C

heck

cod

eC

ause

Che

ck c

ode

nam

e

Out

door

liqu

id b

ack

dete

ctio

ner

ror

1. P

MV

1/P

MV

2 er

ror

2. P

d se

nsor

, Ps

sens

or e

rror

3. C

logg

ing

of S

V2

circ

uit

4. C

logg

ing

of S

V3B

circ

uit a

nd/o

r ba

lanc

e pi

pe5.

Lea

kage

at a

che

ck v

alve

on

a m

ain

disc

harg

e pi

pe6.

Out

door

I/F

P.C

. boa

rd e

rror

Are

conn

ectio

ns o

f ou

tdoo

r PM

V1/

PM

V2/

PM

V4

conn

ecto

rs

corre

ct?

Are

oper

atio

ns o

f out

door

PM

V1/

PM

V2/

PM

V4

norm

al?

Are

char

acte

ristic

s of

Pd

sens

or/P

s se

nsor

outp

ut v

olta

geno

rmal

?

Is

SV

2 va

lve

coil

corr

ectly

co

nnec

ted?

Are

ba

lanc

e pi

pese

rvic

e va

lves

of

all u

nits

fully

open

ed?

Is th

ere

nocl

oggi

ng o

f SV

3Bva

lve?

Is th

ere

nocl

oggi

ng o

f SV

3B v

alve

of a

ny o

ther

uni

t tha

nm

alfu

nctio

ning

on

e?

Cor

rect

con

nect

or c

onne

ctio

n.(P

MV

1: C

N30

0, P

MV

2:C

N30

1, P

MV

4: C

N30

3)

PM

V e

rror

Pd

sens

or/P

s se

nsor

err

or

Cor

rect

con

nect

or c

onne

ctio

n.(S

V2:

CN

311)

Ope

n fu

lly b

alan

ce p

ipe

serv

ice

valv

es o

f all

units

.

Rep

lace

clo

ggin

g pa

rts.

Rep

lace

clo

ggin

g pa

rts.

Rep

lace

che

ck v

alve

of m

ain

disc

harg

e pi

pe.

Che

ck I/

F P

.C. b

oard

.

Is th

ere

no le

akag

e of

chec

k va

lve

of m

ain

disc

harg

e pi

pe in

follo

wer

units

in w

hich

com

pres

sors

are

driv

en in

coo

ling

oper

atio

n?

– 178 –

No

No

No

Yes

Yes

Yes

Yes

No

No

[P15

]C

heck

cod

eC

ause

Che

ck c

ode

nam

e

Gas

leak

det

ectio

nT

S c

ondi

tion

(Sub

-cod

e: 0

1)

1. O

utdo

or u

nit s

ervi

ce v

alve

clo

sed

2. O

utdo

or P

MV

err

or3.

TS

1 se

nsor

err

or4.

Ref

riger

ant s

hort

age,

clo

ggin

g re

frig

eran

t circ

uit

5. 4

-way

val

ve e

rror

6. S

V4

circ

uit e

rror

Are

ser

vice

va

lves

of d

isch

arge

ga

s pi

pe, s

uctio

n ga

s pi

pean

d liq

uid

side

sfu

lly o

pene

d?

Ope

n se

rvic

e va

lves

fully

.

Rep

air

outd

oor

PM

V.

Rep

lace

TS

1 se

nsor

.

Che

ck a

nd r

epla

ce 4

-way

valv

e an

d co

il.

Rep

air

SV

41/S

V42

/SV

43va

lve

circ

uits

.

Ref

riger

ant s

hort

age,

clog

ging

, pip

e br

eaka

ge.

(Che

ck th

ere

is n

o cl

oggi

ng a

nd p

ipe

brea

kage

, and

then

rec

harg

e re

frig

eran

t.)

(Coi

l, va

lve

body

, dis

conn

ectio

nof

wire

, etc

Are

char

acte

ristic

sof

TS

1 se

nsor

resi

stan

ceno

rmal

?

Doe

s di

scha

rge

refri

gera

nt g

as b

ypas

sto

suc

tion

side

thro

ugh

4-w

ay v

alve

?

Is th

ere

any

leak

age

on S

V41

,42

and

43

valv

eci

rcui

ts?

Con

nect

ors:

PM

V1:

CN

300,

PM

V2:

CN

301,

PM

V4:

CN

303

Is o

utdo

or P

MV

nor

mal

?1.

Con

nect

or c

onne

ctio

n2.

Wiri

ng3.

Coi

l4.

Val

ve b

ody

5. O

utdo

or I/

F P

.C. b

oard

* S

ee "

Out

door

uni

t tem

pera

ture

sen

sor

char

acte

ristic

s" o

n "9

-9. S

enso

r C

hara

cter

istic

s".

NO

RM

AL

NO

RM

AL

NO

RM

AL

AB

NO

RM

AL

AB

NO

RM

AL

AB

NO

RM

AL

Rep

lace

def

ectiv

e pa

rts.

Che

ck

SV

5, S

V11

circ

uit

leak

age.

Cor

rect

pip

ing

to n

orm

al

pipi

ng.

Che

ck

inco

rrec

t pip

ing

of

disc

harg

e ga

s/su

ctio

n ga

s m

ain

pipe

s.

Rep

air

FS

uni

t.Is

F

S u

nit n

orm

al?

Yes

Yes

Yes

Yes

Yes

No

No

No

No

No

[P15

] C

heck

cod

eC

ause

Che

ck c

ode

nam

e

Gas

leak

det

ectio

nT

D c

ondi

tion

(Sub

-cod

e: 0

2)

1. O

utdo

or u

nit s

ervi

ce v

alve

clo

sed

2. O

utdo

or P

MV

err

or3.

TD

sen

sor

erro

r4.

SV

4 ci

rcui

t err

or5.

Ref

riger

ant s

hort

age,

clo

ggin

g re

frig

eran

t circ

uit

Are

ser

vice

va

lves

of d

isch

arge

ga

s pi

pe, s

uctio

n ga

s pi

pean

d liq

uid

side

sfu

lly o

pene

d?

Ope

n se

rvic

e va

lves

fully

.

Rep

air

outd

oor

PM

V.

Rep

lace

TD

1, T

D2

orT

D3

sens

or.

Rep

air

SV

4 va

lve

circ

uits

.

Cor

rect

wiri

ng.

Ref

riger

ant s

hort

age,

clog

ging

, pip

e br

eaka

ge.

(Coi

l, va

lve

body

, coi

l ins

talla

tion,

disc

onne

ctio

n of

cab

le, e

tc.)

(Che

ck it

usi

ng th

e m

isw

iring

che

ckfu

nctio

n of

the

outd

oor

unit.

)

(Che

ck th

ere

is n

o cl

oggi

ng a

nd p

ipe

brea

kage

, and

then

rec

harg

e re

frig

eran

t.)

Con

nect

ors:

PM

V1:

CN

300,

PM

V2:

CN

301,

PM

V4:

CN

303

Are

char

acte

ristic

sof

TD

1, T

D2

and

TD

3se

nsor

res

ista

nce

norm

al?

Is S

V4

valv

eci

rcui

t nor

mal

?(C

oil m

isin

stal

latio

n,va

lve

leak

age)

Are

not

indo

orun

its in

diff

eren

tre

frig

eran

t circ

uit

conn

ecte

d?

Is o

utdo

or P

MV

nor

mal

?1.

Con

nect

or c

onne

ctio

n2.

Wiri

ng3.

Coi

l4.

Val

ve b

ody

5. O

utdo

or I/

F P

.C. b

oard

* S

ee "

Out

door

uni

t tem

pera

ture

sen

sor

char

acte

ristic

s" o

n "9

-9. S

enso

r C

hara

cter

istic

s".

NO

RM

AL

NO

RM

AL

AB

NO

RM

AL

AB

NO

RM

AL

Cor

rect

pip

ing

to n

orm

al

pipi

ng.

Che

ck

inco

rrec

t pip

ing

of

disc

harg

e ga

s/su

ctio

n ga

s m

ain

pipe

s.

Rep

air

FS

uni

t.Is

F

S u

nit n

orm

al?

– 179 –

No

No

No

No

No

No

No

No

No

No

[P17

]C

heck

cod

eC

ause

Che

ck c

ode

nam

e

Dis

char

ge te

mp

TD

2 er

ror

1.

Out

door

uni

t ser

vice

val

ve c

lose

d2.

Out

door

PM

V e

rror

, 3. T

D s

enso

r er

ror

4. R

efrig

eran

t sho

rtag

e, c

logg

ing

of r

efrig

eran

t circ

uit

5. 4

-way

val

ve e

rror

, 6. S

V4

circ

uit l

eaka

ge, m

isin

stal

latio

n7.

SV

5 ci

rcui

t lea

kage

8. S

V6

circ

uit c

logg

ing

9. In

corr

ect p

ipin

g of

dis

char

ge g

as /

suct

ion

gas

pipe

s10

. Coo

ling/

Hea

ting

FS

uni

t err

or

Are

se

rvic

e va

lves

of g

as a

nd li

quid

sid

es

fully

op

ened

?

Ope

n se

rvic

e va

lves

fully

.

Rep

air

outd

oor

PM

V.

Rep

lace

TD

2 se

nsor

.

Che

ck 4

-way

val

ve.

Cor

rect

inst

alla

tion

ofva

lve

coil.

Rep

lace

SV

42 v

alve

.

Cor

rect

wiri

ng

Ref

riger

ant s

hort

age,

clog

ging

, pip

e br

eaka

ge

Are

indo

or u

nits

of a

diffe

rent

ref

riger

ant l

ine

conn

ecte

d?

Are

char

acte

ristic

sof

TD

2 se

nsor

resi

stan

ceno

rmal

?

Doe

s di

scha

rge

refr

iger

ant g

as b

ypas

s to

su

ctio

n si

de th

roug

h4-

way

va

lve?

Con

nect

ors:

PM

V1:

CN

300,

PM

V2:

CN

301,

PM

V4:

CN

303

(Che

ck it

usi

ng th

e m

isw

iring

che

ckfu

nctio

n of

the

outd

oor

unit.

)

(Che

ck th

ere

is n

o pi

pe b

reak

age,

and

then

rec

harg

e th

e re

frig

eran

t.)

Is o

utdo

or P

MV

nor

mal

?1.

Con

nect

or c

onne

ctio

n2.

Wiri

ng3.

Coi

l4.

Val

ve b

ody

5. O

utdo

or I/

F P

.C. b

oard

SV

4 ci

rcui

t1.

Are

SV

41, S

V42

and

SV

43va

lve

coils

inst

alle

d co

rrec

tly?

2. Is

SV

42 c

ircui

t sea

led

corr

ectly

(no

leak

age)

?

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes*

See

"O

utdo

or u

nit t

empe

ratu

re s

enso

rch

arac

teris

tics"

on

"9-9

. Sen

sor

Cha

ract

eris

tics"

.

Rep

lace

def

ectiv

e pa

rts.

SV

5 ci

rcui

t lea

kage

che

ck

Rep

lace

def

ectiv

e pa

rts.

SV

6 ci

rcui

t clo

ggin

g ch

eck

Cor

rect

pip

ing

to n

orm

al

pipi

ng.

Che

ck

inco

rrec

t pip

ing

of d

isch

arge

ga

s/su

ctio

n ga

s m

ain

pipe

s

Rep

air

Coo

ling/

Hea

ting

FS

uni

t.

Is

Coo

ling/

Hea

ting

FS

un

it no

rmal

?

[P17

]C

heck

cod

eC

ause

Che

ck c

ode

nam

e

Dis

char

ge te

mpe

ratu

re T

D3

erro

r

1. O

utdo

or u

nit s

ervi

ce v

alve

clo

sed

2. O

utdo

or P

MV

1, 2

err

or3.

TD

sen

sor

erro

r4.

Ref

riger

ant s

hort

age,

clo

ggin

g in

side

of p

ipe

5. 4

-way

val

ve e

rror

6. S

V4

circ

uit l

eaka

ge, m

isin

stal

latio

n7.

SV

5 ci

rcui

t clo

ggin

g8.

SV

6 ci

rcui

t clo

ggin

g9.

Inco

rrec

t pip

ing

of d

isch

arge

gas

/suc

tion

gas

pipe

10

. Coo

ling/

Hea

ting

FS

uni

t err

or

Are

se

rvic

e va

lves

of o

utdo

or

unit

disc

harg

e ga

s pi

pe, s

uctio

n ga

s pi

pe, l

iqui

d pi

pe

fully

ope

ned?

Are

ou

tdoo

r PM

V, 1

. Con

nect

or c

onne

ctio

n 2.

Wiri

ng, 3

. Coi

l, 4.

Val

ve b

ody,

5.

Out

door

P.C

. boa

rd n

orm

al?

Is

resi

stan

ce c

hara

cter

istic

s of

TD

3 se

nsor

no

rmal

?

Was

n't

disc

harg

e ga

s by

pass

to

suct

ion

side

by

4-w

ay v

alve

?

SV

5 ci

rcui

t lea

kage

ch

eck

SV

6 ci

rcui

t clo

ggin

g ch

eck

Che

ck

inco

rrec

t pip

ing

of d

isch

arge

ga

s/su

ctio

n ga

s m

ain

pipe

s.

Is

Coo

ling/

Hea

ting

FS

uni

t no

rmal

?

Isn'

t an

indo

or u

nit o

f diff

eren

t re

frig

eran

t lin

e co

nnec

ted?

∗ C

onne

ctor

s: P

MV

1: C

N30

0P

MV

2: C

N30

1P

MV

4: C

N30

3

No

No

No

No

No

No

No

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Ope

n se

rvic

e va

lves

fully

.

Rep

air

outd

oor

PM

V.

Rep

lace

TD

3 se

nsor

.

4-w

ay v

alve

che

ck

Cor

rect

inst

llatio

n of

val

ve c

oil.

Rep

lace

SV

43 v

alve

.

Rep

lace

def

ectiv

e pa

rts.

Rep

lace

def

ectiv

e pa

rts.

Cor

rect

pip

ing

as s

tand

ard.

Rep

air

Coo

ling/

Hea

ting

FS

uni

t

Cor

rect

wiri

ng a

s st

anda

rd.

* S

ee "

Out

door

uni

t tem

pera

ture

sen

sor

char

acte

ristic

s" o

n "9

-9. S

enso

r C

hara

cter

istic

s".

The

y ar

e re

frig

eran

t sho

rtag

e,

clog

ging

and

pip

e br

eaka

ge.

(Tha

t is,

con

firm

ther

e is

no

pipe

bre

akag

e an

d th

en r

echa

rge

refr

iger

ant.)

SV

4 ci

rcui

t1.

Are

SV

41, S

V42

and

SV

43va

lve

coils

inst

alle

d co

rrec

tly?

2. Is

SV

42 c

ircui

t sea

led

corr

ectly

(no

leak

age)

?

– 180 –

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

No

No

No

No

No

[P19

]

Sub

-cod

e: D

etec

ted

outd

oor

unit

No.

Che

ck c

ode

Cau

seC

heck

cod

e na

me

4-w

ay v

alve

rev

erse

err

or1.

4-w

ay v

alve

err

or2.

TS

1 se

nsor

/TE

1 se

nsor

err

or3.

Pd

sens

or/P

s se

nsor

err

or4.

TE

sen

sor/

TL

sens

or m

isco

nnec

tion

5. S

V14

val

ve c

ircui

t ope

ratio

n er

ror

(Coi

l wiri

ng fa

lls o

ut)

Is 4

-way

val

veco

il co

nnec

tor

conn

ecte

d?

Are

out

put v

olta

gech

arac

teris

tics

of P

d an

dP

s se

nsor

s no

rmal

?

Are

char

acte

ristic

s of

resi

stan

ce v

alue

of T

S1,

TE

1 an

d T

L se

nsor

sno

rmal

?

Are

TS

1, T

E1

and

TL

sens

orco

nnec

tors

con

nect

edno

rmal

ly?

Doe

sdi

scha

rge

refri

gera

ntga

s by

pass

to s

uctio

nsi

de th

roug

h 4-

way

valv

e? *

1

Doe

s 4-

way

val

veop

erat

e?

Cor

rect

con

nect

or c

onne

ctio

n.(4

-way

val

ve c

oil:

CN

317)

Sen

sor

erro

r

Sen

sor

erro

r

Cor

rect

con

nect

or c

onne

ctio

nT

S1

sens

or: C

N50

5T

E1

sens

or: C

N52

0T

L se

nsor

: CN

523

If no

err

or o

ccur

s in

the

test

oper

atio

n, r

esta

rt o

pera

tion.

4-w

ay v

alve

err

orC

heck

4-w

ay v

alve

.

Res

et th

e po

wer

sup

ply

and

star

t hea

ting

test

ope

ratio

n.

*1 C

heck

TS

1 an

d T

E1

tem

pera

ture

of t

he o

utdo

or u

nit w

hich

is r

unni

ng.

(I/F

) S

W01

=[1

], S

W02

=[7

], S

W03

=[2

] → T

S s

enso

r te

mpe

ratu

re

SW

01=

[1],

SW

02=

[9],

SW

03=

[2] →

TE

sen

sor

tem

pera

ture

<Ju

dgm

ent c

riter

ia>

TE

1 se

nsor

: Nor

mal

if T

E1

is 8

6°F

(30

°C)

or le

ss in

the

seas

ons

exce

pt s

umm

er (

Out

side

tem

p 68

°F (

20°C

) or

low

er)

TS

1 se

nsor

: Nor

mal

if T

S is

122

°F (

50°C

) or

less

in th

e se

ason

s ex

cept

sum

mer

(O

utsi

de te

mp

68°F

(20

°C)

or lo

wer

)

* S

ee "

Out

door

uni

t tem

pera

ture

sen

sor

char

acte

ristic

s" o

n "9

-9. S

enso

r C

hara

cter

istic

s".

No

Is

Coo

ling/

Hea

ting

FS

uni

t nor

mal

?R

epai

r C

oolin

g/H

eatin

g F

S u

nit.

Yes

Yes

[P20

] C

heck

cod

eC

ause

Che

ck c

ode

nam

e

Hig

h-pr

essu

re p

rote

ctiv

eop

erat

ion

1. P

d se

nsor

err

or2.

Ser

vice

val

ve c

lose

d.3.

Indo

or/o

utdo

or fa

n er

ror

4. In

door

/out

door

PM

V c

logg

ing

5. In

door

/out

door

hea

t exc

hang

er c

logg

ing

6. S

V2

circ

uit e

rror

7. S

V4

circ

uit e

rror

8. S

V5

circ

uit e

rror

9. O

utdo

or I/

F P

.C. b

oard

err

or10

. Ope

ratio

n er

ror

of c

heck

val

ve o

f mai

n

di

scha

rge

pipe

11. R

efrig

eran

t ove

rcha

rge

Are

ser

vice

val

ves

fully

open

ed?

Is

Coo

ling/

Hea

ting

FS

uni

t no

rmal

?

Ope

n se

rvic

e va

lves

fully

.

Rep

air

Coo

ling/

Hea

ting

FS

uni

t.

Res

et p

ower

sup

ply,

and

sta

rt a

test

op

erat

ion

corr

espo

nded

to th

e se

ason

.

All

Coo

ling

→ T

o (B

)A

ll he

atin

g →

To

(C)

*

1. P

ress

ure

by p

ress

ure

gaug

e (C

heck

join

t)2.

Pre

ssur

e di

spla

y on

7-s

egm

ent d

ispl

ay3.

Out

put v

olta

ge o

f I/F

P.C

. boa

rdIf

1 an

d 2,

3 a

re d

iffer

ent,

an e

rror

of p

ress

ure

sens

oris

con

side

red.

If 2

and

3 ar

e di

ffere

nt, c

heck

I/F

P.C

. boa

rd.

No

No

Are

char

acte

ristic

s of

hi

ghpr

essu

re s

enso

rno

rmal

?

Che

ck p

arts

.Fa

ilure

→ R

epla

ce

NO

RM

AL

NO

RM

AL

NO

RM

AL

Che

ck

inco

rrect

pip

ing

of d

isch

arge

ga

s/su

ctio

n ga

s m

ain

pipe

s.

Cor

rect

pip

ing

as n

orm

al.

AB

NO

RM

AL

AB

NO

RM

AL

AB

NO

RM

AL

PM

V4,

SV

12

oper

atio

n ch

eck

Rep

lace

def

ectiv

e pa

rts.

– 181 –

No

No

NoNo

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

All

cool

ing

oper

atio

n

(B)

No

No

Doe

sco

olin

g ou

tdoo

r fa

nno

rmal

ly o

pera

te?

Is th

ere

any

fan

crac

kor

com

ing-

off?

Is S

V2

bypa

ssci

rcui

t nor

mal

?

Is S

V4

circ

uit n

orm

al?

Is c

heck

val

ve o

fm

ain

disc

harg

e pi

peno

rmal

?

Rep

air

faul

ty p

arts

.

Rep

air

faul

ty p

arts

.

Rep

air

outd

oor

PM

V.

Elim

inat

e th

e in

terf

eren

ce.

Rep

air

SV

2 by

pass

circ

uit.

Rep

air

SV

4 ci

rcui

t.

Rep

air

chec

k va

lve.

→ R

epla

ce

Ref

riger

ant o

verc

harg

e, c

logg

ing,

pip

ebr

eaka

ge, a

bnor

mal

ove

rload

(Con

nect

or c

onne

ctio

n, fa

n IP

DU

,fa

n m

otor

, cab

ling)

(Coi

l err

or, c

logg

ing,

dis

conn

ectio

nof

wire

, etc

.)r

(Coi

l err

or, c

logg

ing,

dis

conn

ectio

nof

wire

, etc

.)

Is th

ere

any

inte

rfere

nce

of

heat

exch

angi

ngof

out

door

uni

t?1.

Hea

t exc

hang

er c

logg

ing

2. A

ir sh

ort c

ircui

t

Con

nect

ors:

PM

V1:

CN

300,

PM

V2:

CN

301,

PM

V4:

CN

303

Is o

utdo

or P

MV

nor

mal

?1.

Con

nect

or c

onne

ctio

n2.

Wiri

ng3.

Coi

l4.

Val

ve b

ody

5. O

utdo

or I/

F P

.C. b

oard

No

No

No

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

Yes

No

No

AB

NO

RM

AL

AB

NO

RM

AL

NO

RM

AL

NO

RM

AL

No

No

(C)

No

No

All

heat

ing

oper

atio

n

Doe

s he

atin

gin

door

fan

norm

ally

oper

ate?

Is in

door

PM

Vno

rmal

?

Is c

heck

val

veof

mai

ndi

scha

rge

pipe

norm

al?

Is S

V5

circ

uit n

orm

al?

Are

any

indo

orun

its in

diff

eren

tre

frig

eran

t circ

uit

conn

ecte

d?A

rech

arac

teris

tics

ofse

nsor

TC

2 an

d T

CJ

resi

stan

ce

norm

al?

Is c

onne

ctor

conn

ectio

n an

d co

ilno

rmal

?

Is c

onne

ctor

conn

ectio

n, c

onde

nser

or fa

n m

otor

nor

mal

?R

epai

r fa

ulty

par

ts.

Rep

air

faul

ty p

arts

.

Rep

air

chec

k va

lve.

→ R

epla

ce

Rep

air

SV

5 ci

rcui

t.

Che

ck a

nd c

orre

ctw

iring

.

Rep

lace

TC

2 or

TC

Jse

nsor

.

Ref

riger

ant o

verc

harg

e,cl

oggi

ng, p

ipe

brea

kage

,ab

norm

al o

verlo

adC

heck

indo

or P

.C. b

oard

.Fa

ulty

→ R

epla

ce

(Coi

l err

or, c

hoke

,di

scon

nect

ion

of c

able

s, e

tc.)

r

(Che

ck it

usi

ng th

em

isw

iring

che

ck fu

nctio

nof

the

outd

oor

unit.

)

Elim

inat

e th

ein

terf

eren

ce.

Is th

ere

any

inte

rfer

ence

of h

eat-

exch

angi

ng o

fin

door

uni

t?1.

Filt

er c

logg

ing

2. H

eat e

xcha

nger

clog

ging

3. A

ir sh

ort c

ircui

t

No

Is th

ere

clog

ging

in a

nyva

lves

?R

epla

ce P

MV

bod

y.

4-w

ay

valv

e op

erat

ion

chec

kR

epla

ce 4

-way

val

ve.

SV

11

circ

uit c

logg

ing

chec

kR

epla

ce d

efec

tive

part

s.

– 182 –

No

No

Yes

Yes

Yes

Yes

Yes

No

No

No

* R

esis

tanc

e of

the

win

ding

: 1.1

-1.7

Ω

(bet

wee

n R

-S, R

-T a

nd S

-T)

[P22

] C

heck

cod

eC

ause

Che

ck c

ode

nam

e

Out

door

fan

IPD

U e

rror

1. F

an lo

ck2.

Fan

IPD

U P

.C. b

oard

err

or3.

Ove

rload

4. E

xter

nal c

ause

suc

h as

bla

st

Sub

-cod

e:0∗

: IG

BT

sho

rt c

ircui

t1∗

: Pos

ition

det

ectio

n ci

rcui

t err

or3∗

: Mot

or lo

ck4∗

: Mot

or c

urre

nt e

rror

det

ecte

dC

∗: T

H s

enso

r te

mpe

ratu

re e

rror

D∗:

TH

sen

sor

erro

rE

∗: F

an V

dc e

rror

Igno

re th

e in

dica

tion

(0-F

) on

"∗"

dig

it.

Is w

ireco

nnec

tor

conn

ectio

non

fan

IPD

U P

.C. b

oard

norm

al?

Is n

ot o

utdo

or fa

nm

otor

lock

ed?

Is th

e re

sist

ance

of

the

mot

or's

win

ding

wire

nor

mal

?

Is s

ub-c

ode

ofou

tdoo

r I/F

P.C

.bo

ard

[0*]

?

Is th

ere

no p

robl

em s

uch

asst

uffin

g or

bla

st b

low

ing

to d

isch

arge

por

t of

outd

oor

fan?

Cor

rect

wire

con

nect

orco

nnec

tion.

Rep

lace

mot

or.

Rep

lace

fan

IPD

U.

Cle

ar th

e ca

use

of o

verlo

ad.

Che

ck fa

n IP

DU

.

Yes

Yes

Yes

Yes

Yes

No

No

No

No

No

[P26

]C

heck

cod

eC

ause

Che

ck c

ode

nam

e

G-T

r sh

ort-

circ

uit p

rote

ctio

n er

ror

1. O

utdo

or u

nit p

ower

err

or2.

IPD

U e

rror

/Wire

con

nect

ion

erro

r3.

Com

pres

sor

erro

r4.

IPD

U P

.C. b

oard

err

or

Is p

ower

vol

tage

of o

utdo

or u

nit

norm

al?

Is w

ire c

onne

ctor

conn

ectio

n on

INV

P.C

. boa

rdno

rmal

?

Is th

ere

no fu

sing

of A

C30

A fu

se?

Is c

ompr

esso

rno

rmal

?

Is s

moo

thin

gco

nden

ser

norm

al?

(150

0ΩF,

400

V)

Cor

rect

pow

er li

ne.

Cor

rect

con

nect

ion

of w

ireco

nnec

tor.

Rep

lace

fuse

and

A3-

IPD

UP.

C. b

oard

.

Rep

lace

com

pres

sor.

Che

ck c

apac

ity c

omin

gout

/ex

tern

al a

ppea

ranc

e.

Rep

lace

A3-

IPD

U P

.C. b

oard

.

Sub

-cod

e:01

: Com

pres

sor

1, 0

2: C

ompr

esso

r 2,

03:

Com

pres

sor

3

– 183 –

No

No

No

Yes

Yes

Yes

Yes

No

[P29

]

[P31

]

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Che

ck c

ode

Cau

seC

heck

cod

e na

me

Com

pres

sor

posi

tion

dete

ctiv

eci

rcui

t err

or1.

Wire

/con

nect

or c

onne

ctio

n er

ror

2. C

ompr

esso

r er

ror

3. A

3-IP

DU

P.C

. boa

rd e

rror

Oth

er in

door

err

or(G

roup

follo

wer

uni

t err

or)

Ano

ther

indo

or u

nit i

n th

e gr

oup

is a

bnor

mal

.

Sub

-cod

e:01

: Com

pres

sor

1, 0

2: C

ompr

esso

r 2,

03:

Com

pres

sor

3

Are

con

nect

orco

nnec

tion

and

wiri

ngno

rmal

?

Is th

e un

it gr

ound

ed?

Is n

ot w

indi

ngsh

orte

d? (

Is w

indi

ngre

sist

ance

0.1

to0.

4Ω?)

Is n

ot w

indi

ngop

ened

?

Che

ck a

nd c

orre

ct c

ircui

t and

cabl

es s

uch

as w

iring

toco

mpr

esso

r, et

c.

Com

pres

sor

erro

r →

Rep

lace

Com

pres

sor

erro

r →

Rep

lace

Com

pres

sor

erro

r →

Rep

lace

Che

ck A

3-IP

DU

P.C

. boa

rd.

Failu

re →

Rep

lace

Whe

n th

e he

ader

uni

t of t

he g

roup

det

ecte

d er

ror

[E03

], [L

03],

[L07

] or

[L08

], th

e fo

llow

er u

nit o

f the

gro

up d

ispl

ays

[P31

] err

or a

nd s

tops

. The

re a

re n

o ch

eck

code

dis

play

and

ala

rm r

ecor

d of

the

mai

n re

mot

e co

ntro

ller.

– 184 –

9-6. 7-Segment Display Function7-segment display on outdoor unit (interface P.C. board)The interface control P.C. board features a 7-segment LED display designed to check operational status.Display items can be changed by changing the combination of the number settings of rotary switches providedon the P.C. board (SW01, SW02 and SW03).

Checking Procedure to Be Followed in Event of Abnormal ShutdownIf the system is shut down due to an error in the outdoor unit, perform checks in the following steps:

1 Open the panel of the outdoor unit and inspection window of the electric parts box, andcheck the 7-segment display.The check code is displayed in the right-hand section of the 7-segment display [B].[U1] [OOO] ([OOO]: Check code)

* To check the check code, set the rotary switches SW01/SW02/SW03 to [1/1/1].If there is a sub-code, the display alternates between the check code [OOO] (3 seconds) and the sub-code [OOO] (1 second).

2 Check the check code and follow the applicable diagnostic procedure.

3 If the 7-segment display shows [U1] [E28], there is an error in a follower unit.Push the push switch SW04 on the header unit and hold for several seconds.As the fan of the outdoor unit in which the error has occurred comes on, open the panel of the unit, andcheck the check code shown on the 7-segment display.

4 Perform checks in accordance with the diagnostic procedure applicable to the check code.


SW01 SW02 SW03

SW04

D600 D601 D602 D603 D604

SW15SW05

7-segment display[A]

Push switch

7-segment display[B]

Rotary switches

– 185 –

(1) Display of System Information (Displayed on Header Outdoor Unit Only)

F G

A

DU2U1 U3 U4

Dp

B

E C

Display section A Display section B

Outdoor unit No.

SW01 SW02 SW03 Display detail

Unused1

System capacity2 [... ... 6. 0 t ]~[... 2 0. 0 t ] 6 to 20 Ton

A3

No. of outdoor units [...1]~[...2]:1 to 2

B [...P]

A4

No. of indoor units connected /No. of units with cooling thermo ON

[...0.]~[40.]:0 to 40 (No. of units connected)

B [C...0]~[C40]:0 to 40 (No. of units with cooling thermo ON)

A5

No. of indoor units connected /No. of units with heating thermo ON

[...0.]~[40.]:0 to 40 (No. of units connected)

B [H...0]~[H40]:0 to 40 (No. of units with heating thermo ON)

A7

Release control Normal: [r. ...], During release control: [r.1]

B —

8Oil equalization control Normal: [oiL-0]

During oil equalization control: [oiL-1]

A6

Amount of compressor commandcorrection

Value displayed in hexadecimal format

B

A

9

Oil equalization request Displayed through LED segment lighting pattern

If element F shown on sketch at right turned on:Header unit oil equalization requestIf element C shown on sketch at right turned on:Follower unit oil equalization request

B

A10

Refrigerant/oil recovery operation Oil recovery in cooling: [C1], Normal: [C ...]

B Refrigerant recovery in heating: [H1], Normal: [H ...]

A11

Automatic addressing [Ad]

B During automatic addressing: [... FF], Normal: [... ... ...]

Unused16

A12

Power pick-cut [dU]

14Optional control(BUS line input)

Same as above

B Normal: [... ... ...], During 50-90% capacity operation: [_50-_90]While control is based on BUS line input: [E50-E90]

13

31

Optional control (P.C. board input) Displays optional control status A B

Operation mode selection: During priority heating (normal) h.∗. ∗.∗.∗.

Heating only H.∗. ∗.∗.∗.

Cooling only C.∗. ∗.∗.∗.

Start input ∗.1.

External master ON/OFF: Normal ∗.....

∗.∗.∗.

∗.∗.∗.

Stop input ∗.0. ∗.∗.∗.

Start input ∗.∗.

Night operation: Normal ∗.∗.

1.∗.∗.

....∗.∗.

Start input ∗.∗.

Snowfall operation: Normal ∗.∗.

∗.1.∗.

∗....∗.

Unused15

– 186 –

(2) Display of Outdoor Unit Information (Displayed on Each Outdoor Unit)


A

1

Error data Outdoor unit No.: [U1] to [U2]

Unused2

A

3

Operation mode Stop [... ...]Normal cooling: [... C], Normal heating: [... H], Normal defrosting: [... J]Simultaneous cooling: [Ch], Simultaneous heating: [Hc]

B —

B [...HP]

A4

Outdoor unit HP capacity 6 Ton to 10 Ton [ ... ... 6. 0 t ] to [... 1 0. 0 t ]

A B A B

B Mode 0 to 63: [... 0] to [63]

A6

Outdoor fan mode [FP]

11Unused8

ANormal [o L.]

B Initial display: [... ... ...], Oil level judgment result: [#.∗.$]Displayed letters #, ∗ and $ represent judgment results for compressor Nos.1, 2 and 3, respectively (“0” for normal and “1” or “2” for low level).

14 PMV1/PMV2 opening Displays opening data in decimal format (total opening)

15

∗ ∗... ∗

∗ ∗.P

∗ ∗.PPMV4 opening Displays opening data in decimal format

16

Oil level judgment status

A* Pushing of <SW05> restores normal display.

[L d.]

B Compressor No. 1 low level being confirmed: [L ... ...]Compressor No. 2 low level being confirmed: [... L ...]Compressor No. 3 low level being confirmed: [... ... L]

<SW04> push SW function: Displays low level confirmed judgment result of each compressor.

A BControl valve output data Displays control output status of solenoid valve

H. 1 ... ... ...4-way valve: ON

H.0 ... ... ...4-way valve: OFF

2. ... 1 0 0SV2: ON / SV5: OFF / SV6: OFF

2. ... 0 1 0SV2: OFF / SV5: ON / SV6: ON

2. ... 0 0 1SV2: OFF / SV5: OFF / SV6: ON

3. 1 0 0 0SV3A: ON / SV3B: OFF / SV3C: OFF / SV3D: OFF

3. 0 1 0 0SV3A: OFF / SV3B: ON / SV3C: OFF / SV3D: OFF

3. 0 0 1 0SV3A: OFF / SV3B: OFF / SV3C: ON / SV3D: OFF

3. 0 0 0 1SV3A: OFF / SV3B: OFF / SV3C: OFF / SV3D: ON

4. ... 1 0 0SV41: ON / SV42: OFF / SV43: OFF

4. ... 0 1 0SV41: OFF / SV42: ON / SV43: OFF

4. ... 0 0 1SV41: OFF / SV42: OFF / SV43: ON

A. 1 ... 0 0SV11 A, B : ON / SV14: OFF / SV3F: OFF

A. 0

9

10

11

12

13 ... 1 0SV11 A, B : OFF / SV14: ON / SV3F: OFF

A. 0 ... 0 1SV11 A, B : OFF / SV14: OFF / SV3F: ON

B Displays compressor backup setting statusNormal: [... ... ...]Compressor No. 1 backup: [1 ... ...]Compressor No. 2 backup: [... 1 ...]Compressor No. 3 backup: [... ... 1]

A

7

Compressor backup [C.b.]

5

Compressor operation command * Operation data of each compressor is displayed in turn in 2 second intervals. If compressor No. 3 does not exist, [– –.– –] is displayed.

<SW04> push SW function: Fan operation at outdoor unit with error. 7-segment display section A: [E.1]<SW04 + SW05> push SW function: Fan operation at outdoor unit without error. 7-segment display section A: [E.0]<SW05> push SW function: Fan operation function check mode is cancelled.

Normal: Compressor speed (rps) is displayed in decimal format.7-segment display (A/B): [C1.∗ ∗ ∗] ⇒ [C2.∗ ∗ ∗] ⇒ [C3.∗ ∗ ∗] ⇒ ...

<SW04> push SW function: Switches to display of operating current (decimal value).7-segment display (A/B): [i1.∗ ∗ ∗] ⇒ [i2.∗ ∗ ∗] ⇒ [i3.∗ ∗ ∗] ⇒ ...Pushing of <SW05> restores normal display.

B Check code (only latest one displayed)If there is no check code, [– – –] is displayed.If there is sub-code, check code [∗ ∗ ∗] and sub-code [– ∗ ∗] are displayedalternately, for 3 seconds and 1 second, respectively.

– 187 –

(3) Display of Outdoor Cycle Data (Displayed at Each Outdoor Unit)


1

21

A BPd pressure data Pd pressure (psi) is displayed in decimal format.

P s.2 Ps pressure data Ps pressure (psi) is displayed in decimal format. ∗. ∗ ∗P L.3 PL pressure conversion data Converted PL pressure (psi) is displayed in decimal format. ∗. ∗ ∗

P d. ∗. ∗ ∗

4t d 1 ... ...TD1 sensor data

TD2 sensor data

TD3 sensor data

TS1 sensor data

TS2 sensor data

TE1 sensor data

TE2 sensor data

TL sensor data

TO sensor data

Temperature sensor reading (˚F) is displayedin decimal format.• Letter symbol and data are displayed alternately, for 1 second and display for 3 seconds, respectively.• Data with negative value is displayed as [– ∗] [ ∗ ∗ ∗].

∗Letter symbol

Data ∗ ∗. ∗

5t d 2 ... ...

∗Letter symbol

Data ∗ ∗. ∗

6t d 3 ... ...

∗Letter symbol

Data ∗ ∗. ∗

7t S 1 ... ...

∗Letter symbol

Data ∗ ∗. ∗

8t S 2 ... ...

∗Letter symbol

Data ∗ ∗. ∗

9t E 1 ... ...

∗Letter symbol

Data ∗ ∗. ∗

10t E 2 ... ...

∗Letter symbol

Data ∗ ∗. ∗

11t L ... ... ...

∗Letter symbol

Data ∗ ∗. ∗

12t o ... ... ...

∗Letter symbol

Data ∗ ∗. ∗


F 1 ... ... ...

TK2 sensor data

TK3 sensor data

TK4 sensor data

TK5 sensor data

∗Letter symbol1

1 5

A BTK1 sensor data Temperature sensor reading (˚F) is displayedin decimal format.• Letter symbol and data are displayed alternately, for 1 second and display for 3 seconds, respectively.• Data with negative value is displayed as [– ∗] [ ∗ ∗ ∗].

Data ∗ ∗. ∗

2F 2 ... ... ...

∗Letter symbol

Data ∗ ∗. ∗

3F 3 ... ... ...

∗Letter symbol

Data ∗ ∗. ∗

4F 4 ... ... ...

∗Letter symbol

Data ∗ ∗. ∗

5F 5 ... ... ...

∗Letter symbol

Data ∗ ∗. ∗

– 188 –


1AError data [U.2]

B Check code is displayed (latest one only).If there is no check code: [– – –].

Unused2

53 1AFan operation mode [U.2]

B At rest: [F ... 0], In mode 63: [F 6 3]

6ARelease signal [U.2]

B Normal: [r ... ...], Upon receiving release signal: [r ... 1]

7AOil level judgment [U.2]

B Normal: [... ... ...], Low level: [... ... L]

8ACompressor 1 operating current [U.2]

B [∗∗.∗], ∗∗.∗ is value of operating current in decimal format.





11AFan operating current [U.2]


4ACompressor operation command [U.2]

B Indicates which compressor is ON.

When compressor No. 1 is ON



∗ Any unconnected compressors is represented by “–”

1 0 0

0 1 0

0 0 1

A

(4) Display of Outdoor Cycle Data (Displayed at Header Unit)* This method is used when displaying follower unit information on the 7-segment display of the header unit.

B4 Indoor BUS communication signalreceiving status

Upon receiving signal: [... ... 1], Other times: [... ... ...]

B5 Indoor check code No check code: [– – –]

B8 Indoor PMV opening data Displayed in decimal format

B9

1~3

1~16

Indoor TA / TRA opening data Displayed in decimal format

B11 Indoor TCJ opening data Displayed in decimal format

B12 1~3 Indoor TC1 opening data Displayed in decimal format

B13 Indoor TC2 opening data Displayed in decimal format

B6 Indoor HP capacity 0.6 to 4.5

B

7

Indoor request command(S code, operation mode)

[ #. ... ∗ ]# represents mode:COOL: [C. ... ∗], HEAT: [H. ... ∗]FAN: [F. ... ∗], OFF: [S. ... ∗]∗ represents S code: [#. ... 0] to [#. ... F]


SW02

1~16

SW03

1

2

3

Indoor address

SW02 setting number

SW02 setting number +16

SW02 setting number +32

7-segment display section A

[01]~[16]

[17]~[32]

[33]~[40]

(5) Display of Indoor Unit Information (Displayed on Header Unit Only)

Note: Indoor address No. is selected by setting SW02 and SW03 and displayed on 7-segment display, section A.

– 189 –

(6) Display of Outdoor EEPROM Writing Error Code (Displayed on Header Unit Only)* The latest error code written in the EEPROM of each outdoor unit is displayed.

(This function is used to check the error code after the resetting of the power supply.)To display the error code, push SW04 and hold for at least 5 seconds after setting SW01 to 03 as shown in thetable below.

• 7-Segment Display

Set SW01/SW02/SW03 to [1/1/16] and push SW04 and hold for at least 5 seconds. The latest error code of theheader unit (U1) will be displayed.If the setting of SW02 is changed, the latest error code of a follow unit (U2-U3) will be displayed.

SW01 SW02 SW03 Indoor address 7-segment display section A

1 E. 1. ∗∗∗Latest error code of header unit (U1)1

216

E. 2. ∗∗∗Latest error code of follower unit No. 1 (U2)

Section A Section B

D600 D601 D602 D603 D604

– 190 –

9-7. Oil Level Judgment DisplayThe current compressor oil level judgment results can be accessed by setting the switches provided on theinterface P.C. board of an outdoor unit.Perform the checks in accordance with the procedure described below.

1 Operation Procedure(1) Start the operation.(2) Set the switches provided on the interface P.C. board of the outdoor unit for which oil level judgment results

are required as follows:SW01/SW02/SW03 = 1/16/1

(3) The oil level judgment result will be displayed on the 7-segment display.7-segment display: [oL] [#. ∗.$]The letters #, ∗ and $ are digits that represent judgment results for compressor Nos. 1, 2 and 3,respectively.(See the table below for the interpretation of the judgment results.)

(4) When checking is completed, revert the SW01/SW02/SW03 setting to [1/1/1].

2 Oil Level Judgment Results

Display example

1Start operation.

3

2 4

Interface P.C. board of outdoor unit for which oil level judgment results are

Oil level judgment results are displayed

Set SW01/SW02/SW03 to 1/16/1.

Upon completion of checking, revert SW01/SW02/SW03 setting to 1/1/1.

Displayed digit Judgment result Description

0 Normal The amount of oil in the compressor is sufficient.

12

Low level The amount of oil in the compressor is insufficient. (Both “1” and “2” stand for insufficiency.)If this result persists, the system will turn itself off in a protective shutdown.

7-segment display [ oL ][ oL ][ oL ]

Oil level is normal for compressors 1, 2 and 3.Oil level is low for compressors 1, 2 and 3.Oil level is low for compressor 2 and normal for compressors 1 and 3.

Judgment result for compressor 3Judgment result for compressor 2Judgment result for compressor 1

[ 0 0 0 ][ 2 2 2 ][ 0 2 0 ]

– 191 –

SHRM-i Outdoor Interface P.C. Board Function Setting Exchange Table

Switch/Function Setting Exchange

SW06 DIP SW 4 bit

bit 1 Compressor 1 backup OFF: Normal, ON: Backup when compressor 1 was in trouble

Part type Exchange contents Initial settingat shipment

OFF

SW07 DIP SW 4 bit

bit 1 Demand control 1(Standard specifications) Exchange of upper limit regulation

OFF: 0 to 100%ON : Middle to 100% OFF

SW09 DIP SW 4 bit

In case of center outdoor unit

bit 2 Demand control 2 (Expansion function)Exchange of 2 steps to 4 steps ofupper limit

OFF: 2 steps (Standard)ON : 4 steps OFF


OFF


OFF

In case of terminal outdoor unit

bit 2 Indoor connection capacity over Judgment of error

OFF: Error judgmentON : None (when backup setting for outdoor unit)

OFF

bit 4 Judgment of error for No. of connectedindoor units

OFF: No error judgmentON : Error judgment

OFF

SW10 DIP SW 4 bit

bit 2 Outdoor fan high static pressureoperation

OFF: NormalON : High static pressure operation

OFF

SW12 DIP SW 4 bit

bit 1 Selection of PMV open/close ormanual operation

(According to the following setting contents) OFF

bit 1 bit 2

OFF OFF PMV1, 2 opens/closes by operation of CN30/CN31 (*3)

OFF ON PMV4 opens/closes by operation of CN30/CN31 (*3)

bit 2 OFF

SW11 DIP SW 4 bitbit 4 Operation switching when indoor water

overflow error detectedOFF: Entire system stopsON : System operation continues (Room which trouble occurred only stops.)

OFF

SW16 DIP SW 4 bit

bit 1 Option functionOutput exchange of external outputP.C. boa

(According to the following setting contents) OFF

SW14 DIP SW 4 bit

bit 1 Line address setup OFF

bit 1 bit 2

OFF OFF Compressor operation output

ON OFF Display of system operation ratio

bit 2 OFF

bit 2 OFF

bit 3 OFF

bit 4 OFF

SW13 DIP SW 4 bit bit 4 Line address setup (Used by combining with SW14) OFF

SW17 DIP SW 4 bit bit 3 Clean converter connected OFF: No connection, ON: Connection OFF

CN30 Check connector Manual full opening operation for PMVopening operation

When released: Normal,When short-circuited: Open fully (*1)

Released

SW30 DIP SW 2 bit

bit 1 Communication termination resistancebetween outdoor units

OFF: No termination resistanceON : With termination resistance

ON

CN31 Check connector Manual full closing operation for PMVopening operation

When released: Normal,When short-circuited: Closed fully (*2)

Released

bit 2 Communication termination resistancebetween indoor and outdoor units

OFF: No termination resistanceON : With termination resistance

ON

bit 3 For low noise operation OFF: NormalON : INV frequency upper limit restriction

OFF

bit 4 OFF: NormalON : Fan rpm upper limit restriction

OFF

bit 4 Exchange of Outdoor unit No. / Startorder No.

OFF: Outdoor unit No. [U. #] (#: 1 to 2)ON : Outdoor start order No. [y. #] (#: 1 to 2)

OFF

All bit1, 2, and 3 are ON: Setup of outdoor unit backup OFF

– 192 –

Switching of Jumper Wire/Function Setup

*4 When you replace the board with a service board, be sure to cut the jumper wire matching with the outdoorunit model to be installed. (The jumper wires J09 to J12 which were mounted at shipment from the factoryare provided to all the boards regardless of model type.)

O : With jumper, × : Without jumper (Cut)Function switching setup

jumper Part type Exchange contents Initial settingat shipment

J01 OOOptional function

Operation mode selectionoperation switching

Indoor unit at not selected side is kept with waiting status.

J16 OODemand control 1 (Standardspecification)Corresponds to 2-core wire

Normal (3-core wire <Successive MAKE signal> or4-core wire <Successive MAKE or Pulse signal>)

× 2-core wire <Successive MAKE signal>

J09J12Setup for service

P.C. board(Model setup)

O Approx. 75% (Normal)

× The mode is changed a mode which selected the operation mode of theindoor unit at not selected side.

OJ12

O At shipment from factory *4

O MAP0724FT∗× MAP0964FT∗×

J11

OO××

J10

O×××

J09

OO×O MAP1204FT∗J11

O

O

× Approx. 60%J04 O

Upper limit setup of demandcapacity command incorresponding indoor duringsaving operation in indoor

OJ10

– 193 –

Interface Board Switches and jumper wire positions to be used in the Function setupswitching table

1 3 42

SW16ON

1 2

SW30ON

1 3 42

SW17ON

1 3 42

SW11ON

1 3 42

SW12ON

1 3 42

SW13ON

1 3 42

SW14ON

1 3 42

SW06ON

1 3 42

SW07ON

1 3 42

SW09

CN30 CN31 CN32

Interface P.C.board

ON

1 3 42

SW10ON

J01

J02

J03

J04

J05

J06

J07

J08

J16

J15

J14

J13

J12

J11

J10

J09

J17

J18

J19

J20

J21

J22

J23

J24

J25

J26

J27

J28

J29

– 194 –

Part

Outdoor PMV1, 2, 4Outdoor PMV4 circuit check valveSV14 valveSV14 valve circuit check valve

Corresponding unit

A

Activation of high-pressure protectionActivation of low-pressure protectionDischarge temp. error (TD1)Discharge temp. error (TD2)

P20H06P03P17

Rise of abnormal pressureFall of pressureRise of discharge temp.(compressor 1)Rise of discharge temp.(compressor 2)

Site of fault(see next page) Detected fault and check codeCheck target unit Symptom

PartSite of fault

(see next page) Detected fault and check codeCheck target unit Symptom

Check valve in discharge pipeconvergent sectionSV11 valveSV11 valve circuit check valve

Corresponding unit

B

High-pressure protection operationHigh-pressure SW system error

P20P04-XX

Abnormal rise of pressure

Check valve in discharge pipe Corresponding unitC High-pressure SW system error P04-XX Abnormal rise of pressure

Check valve in oil-equalization circuitCapillaryStrainer

Corresponding unitD

Oil level detection circuit errorOil level low detection and protection

H16-XXH07-XX

Oil circuit error or oilshortage judgment

SV3A valve Other connected unitE Oil level low detection and protection H07-XX Oil level low

SV3B valve Corresponding unitF Oil level low detection and protection H07-XX Oil level low

SV3C valve Other connected unitG Oil level low detection and protection H07-XX Oil level low

Oil return distributor Corresponding unitJ Oil level low detection and protection H07-XX Oil level low

SV3C bypass capillary Corresponding unitK Oil level detection circuit error H16-04 Oil circuit error

SV3A valve Corresponding unitE Oil level low detection and protection H07-XX Oil level low

SV3C valve Corresponding unitG Oil level low detection and protection H07-XX Oil level low

Check valve in discharge pipeconvergent section

Corresponding unitB

Oil level low detection and protectionCompressor breakdownCompressor error (lockup)

H07-XXH01-XXH02-XX

Refrigerant entrapment

Check valve in discharge pipe Corresponding unitC


H07-XXH01-XXH02-XX


Outdoor PMV1, 2 Corresponding unit

A

Outdoor liquid backflow errorOil level low detection and protection

P13H07-XX


Other connected unit Discharge temp. error (TD1)Discharge temp. error (TD2)

P03P17

Rise of discharge temp.(compressor 1)Rise of discharge temp.(compressor 2)

Corresponding unitCheck valve in oil-equalizationcircuit D

Oil level low detection and protection H07-XX Excessive amount of oil(Leaking side)Insufficient amount of oil(Normal side)

SV3E valve Corresponding unitI


H16-05H07-XX

Oil circuit errorOil level lowOil level low

SV3D valveSV3D valve circuit capillaryStrainer

Corresponding unitH

Oil level low detection and protection H07-XX Oil level low

9-8. Leakage/Clogging of Refrigerating Cycle CircuitList of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or OilCircuit Part(MMY-MAP0724FT∗,)

Clogging

Leakage

Note: “XX” represents sub-code

– 195 –

– 196 –

List of Check Codes Generated upon Occurrence of Leakage/Clogging in Outdoor Cycle or OilCircuit Part(MMY-MAP0964FT∗, 1204FT)

Clogging

Part

Outdoor PMV1, 2, 4Outdoor PMV4 circuit check valveSV14 valveSV14 valve circuit check valve

Corresponding unit

A

Activation of high-pressure protectionActivation of low-pressure protectionDischarge temp. error (TD1)Discharge temp. error (TD2)Discharge temp. error (TD3)

P20H06P03P17P18

Rise of abnormal pressureFall of pressureRise of discharge temp.(compressor 1)Rise of discharge temp.(compressor 2)Rise of discharge temp.(compressor 3)

Site of fault(see next page) Detected fault and check codeCheck target unit Symptom

PartSite of fault

(see next page) Detected fault and check codeCheck target unit Symptom

Check valve in discharge pipeconvergent sectionSV11 valveSV11 valve circuit check valve

Corresponding unit

B

High-pressure protection operationHigh-pressure SW system error

P20P04-XX

Abnormal rise of pressure

Check valve in discharge pipe Corresponding unitC High-pressure SW system error P04-XX Abnormal rise of pressure

Check valve in oil-equalization circuitCapillaryStrainer

Corresponding unitD


H16-XXH07-XX

Oil circuit error or oilshortage judgment

SV3A valve Other connected unitE Oil level low detection and protection H07-XX Oil level low

SV3B valve Corresponding unitF Oil level low detection and protection H07-XX Oil level low

SV3C valve Other connected unitG Oil level low detection and protection H07-XX Oil level low

SV3F valve Corresponding unitJ Oil level low detection and protection H07-XX Oil level low

Oil return distributor Corresponding unitK Oil level low detection and protection H07-XX Oil level low

SV3C bypass capillary Corresponding unitL Oil level detection circuit error H16-04 Oil circuit error

SV3A valve Corresponding unitE Oil level low detection and protection H07-XX Oil level low

SV3C valve Corresponding unitG Oil level low detection and protection H07-XX Oil level low

Check valve in discharge pipeconvergent section

Corresponding unitB


H07-XXH01-XXH02-XX


Check valve in discharge pipe Corresponding unitC


H07-XXH01-XXH02-XX


Outdoor PMV1, 2 Corresponding unit

A

Outdoor liquid backflow errorOil level low detection and protection

P13H07-XX


Other connected unit Discharge temp. error (TD1)Discharge temp. error (TD2)Discharge temp. error (TD3)

P03P17P18

Rise of discharge temp.(compressor 1)Rise of discharge temp.(compressor 2)Rise of discharge temp.(compressor 3)

Corresponding unitCheck valve in oil-equalizationcircuit D

Oil level low detection and protection H07-XX Excessive amount of oil(Leaking side)Insufficient amount of oil(Normal side)

SV3E valve Corresponding unitI


H16-05H07-XX

Oil circuit errorOil level lowOil level low

SV3D valveSV3D valve circuit capillaryStrainer

Corresponding unitH

Oil level low detection and protection H07-XX Oil level low

Leakage

– 197 –

– 198 –

9-8-

1.F

low

Sel

ecto

r U

nit

(F

S U

nit

)

Leak

age

of S

VD

val

ve o

r S

VS

val

ve, e

tc; P

ositi

ons

to b

e ch

ecke

d an

d ch

eck

code

whe

n a

trou

ble

such

as

mis

wir

ing

occu

rred

.

Par

t n

ame

SV

D v

alve

SV

S v

alve

Clo

ggin

gO

All

heat

ing

Mai

nly

cool

ing

(Roo

m h

eatin

g)M

ainl

y he

atin

g (R

oom

hea

ting)

• T

C1

is lo

wer

than

nor

mal

indo

or u

nit.

• Te

mpe

ratu

re o

f gas

pip

e at

indo

or s

ide

of th

e flo

w s

elec

tor

uni

t is

low

er th

an th

at o

f nor

mal

FS

uni

t.

Leak

age

AO

SV

D c

ircui

t –S

VS

circ

uit

O

OA

ll co

olin

g (S

V11

ON

)M

ainl

y co

olin

g (R

oom

coo

ling)

Mai

nly

heat

ing

(Roo

m c

oolin

g)

• C

ompa

red

with

nor

mal

indo

or u

nit,

TC

J is

hig

her.

• S

uctio

n ga

s pi

pe a

t out

door

sid

e of

the

flow

sel

ecto

r un

it is

hot

.•

Ref

riger

ant c

ircul

atin

g so

und

is h

eard

in b

ypas

s fr

om S

VD

val

ve t

o S

VS

val

ve.

Mis

wiri

ng/

Mis

inst

alla

tion

of c

oil

SV

D ↔

SV

S

O S

VS

S c

ircui

tO

All

cool

ing

(SV

11 O

FF

)•

TC

J is

hig

her

than

nor

mal

indo

or u

nit.

• G

as p

ipe

at in

door

sid

e of

the

flow

sel

ecto

r un

it is

not

col

d.•

Ref

riger

ant c

ircul

atin

g so

und

is h

eard

from

SV

SS

val

ve.

Clo

ggin

gO

SV

SS

circ

uit

OA

ll co

olin

gM

ainl

y co

olin

g (R

oom

coo

ling)

Mai

nly

heat

ing

(Roo

m c

oolin

g)

• T

CJ

is h

ighe

r th

an n

orm

al in

door

uni

t.•

Gas

pip

e at

indo

or s

ide

of th

e flo

w s

elec

tor

unit

is n

ot c

old.

• R

efrig

eran

t circ

ulat

ing

soun

d is

hea

rd fr

om S

VS

S v

alve

.

SV

DD

valv

e

Clo

ggin

g In

door

uni

t,flo

w s

elec

tor

unit

OA

ll he

atin

gM

ainl

y co

olin

g (R

oom

hea

ting)

Mai

nly

heat

ing

(Roo

m h

eatin

g)

• In

sta

rt ti

me,

whe

n ex

chan

ging

mod

e fr

om c

oolin

g to

hea

ting

afte

r d

efro

st o

pera

tion,

ref

riger

ant s

hock

sou

nd m

ay b

e he

ard.

Leak

age

O S

VD

D c

ircui

tO

All

cool

ing

(SV

11 O

N)

Mai

nly

cool

ing

(Roo

m c

oolin

g)M

ainl

y he

atin

g (R

oom

coo

ling)

• R

efrig

eran

t circ

ulat

ing

soun

d m

ay b

e he

ard

from

SV

DD

val

ve c

ircui

t.•

Suc

tion

gas

pipe

at o

utdo

or u

nit s

ide

of th

e flo

w s

elec

tor

unit

may

be

hot.

Mis

wiri

ng/

Mis

inst

alla

tion

of c

oil

SV

D ↔

SV

S

O S

VD

D c

ircui

tO

All

cool

ing

(SV

11 O

N)

Mai

nly

cool

ing

(Roo

m c

oolin

g)M

ainl

y he

atin

g (R

oom

coo

ling)

O S

VD

D c

ircui

tO

All

heat

ing

Mai

nly

cool

ing

(Roo

m h

eatin

g)M

ainl

y he

atin

g (R

oom

hea

ting)

• R

efrig

eran

t circ

ulat

ing

soun

d m

ay b

e he

ard

from

SV

DD

val

ve c

ircui

t.

Indo

or u

nit,

flow

sel

ecto

r un

itO

All

heat

ing

Mai

nly

cool

ing

(Roo

m h

eatin

g)M

ainl

y he

atin

g (R

oom

hea

ting)

• R

efrig

eran

t circ

ulat

ing

soun

d m

ay b

e he

ard

from

SV

DD

val

ve c

ircui

t.•

Suc

tion

gas

pipe

at o

utdo

or u

nit s

ide

of th

e flo

w s

elec

tor

unit

may

be

hot.

• In

sta

rt ti

me,

whe

n ex

chan

ging

mod

e fr

om c

oolin

g to

hea

ting

afte

r d

efro

st o

pera

tion,

ref

riger

ant s

hock

sou

nd m

ay b

e he

ard.

Leak

age

P19

“4-

way

valv

e re

vers

aler

ror”

O S

VS

circ

uit

OA

ll he

atin

g

Mai

nly

cool

ing

(Roo

m h

eatin

g)M

ainl

y he

atin

g (R

oom

hea

ting)

• C

ompa

red

with

nor

mal

indo

or u

nit,

TC

J is

low

.•

Tem

pera

ture

of s

uctio

n ga

s pi

pe a

t out

door

sid

e of

the

flow

sel

ecto

r un

it is

hig

her

than

that

of n

orm

al fl

ow s

elec

tor

unit.

• R

efrig

eran

t circ

ulat

ing

soun

d is

hea

rd fr

om S

VS

val

ve c

ircui

t.

O S

VD

circ

uit

OA

ll co

olin

g (S

V11

ON

)M

ainl

y co

olin

g (R

oom

coo

ling)

Mai

nly

heat

ing

(Roo

m c

oolin

g)B

• Te

mpe

ratu

re o

f TC

J an

d T

C1

beco

me

high

sim

ilar

to h

eatin

g. (

All

hea

ting

circ

uit)

• D

isch

arge

gas

pip

e at

out

door

uni

t sid

e of

the

flow

sel

ecto

r un

it is

rat

her

hot.

• R

efrig

eran

t circ

ulat

ing

soun

d is

not

hea

rd fr

om S

VS

val

ve, b

ut it

is h

eard

from

SV

D v

alve

.

O S

VS

circ

uit

OL1

8 “F

low

sele

ctor

uni

ter

ror”

C. G

as p

ipe

at in

door

sid

e of

the

flow

sel

ecto

r un

it is

col

d. (

Coo

ling

circ

uit,

Liqu

id p

ack)

. Ref

riger

ant c

ircul

atin

g so

und

is n

ot h

eard

from

SV

D v

alve

, but

it is

hear

d fr

om S

VS

val

ve.

All

heat

ing

Mai

nly

cool

ing

(Roo

m h

eatin

g)M

ainl

y he

atin

g (R

oom

hea

ting)

Tro

ub

lem

od

eO

per

atio

n m

od

e

Ph

eno

men

on

wh

ich

ap

pea

rs a

s re

sult

(Co

rres

po

nd

ing

ind

oo

r u

nit

or

flo

w s

elec

tor

un

it)

Jud

gm

ent

and

po

siti

on

to

be

chec

ked

Exa

mp

le o

fre

frig

eran

tfl

ow

No

tco

ole

dN

ot

hea

ted

May

bec

om

eal

mo

st n

orm

alca

pac

ity

Ab

no

rmal

refr

iger

ant s

ou

nd

Cir

cula

ting

sou

nd

Det

ecti

on

of

chec

k co

de

– 199 –

SV

SS

valv

e

Dis

char

ge.

Liqu

idby

pass

capi

llary

,C

heck

valv

e

Clo

ggin

g

Leak

age

OA

ll co

olin

gM

ainl

y co

olin

g (I

ndoo

r co

olin

g)M

ainl

y he

atin

g (I

ndoo

r co

olin

g)•

Ope

ratio

n is

cha

nged

from

hea

ting

to c

oolin

g. In

door

uni

t,flo

w s

elec

tor

unit

Che

ck v

alve

Cap

illar

ycl

oggi

ng

O

Com

muc

atio

nlin

eP

ower

supp

ly li

ne

Dis

conn

ectio

nC

onta

ct e

rror

Mis

wiri

ngIn

som

e ca

ses,

phe

nom

ena

such

as

abov

e oc

cur.

All

cool

ing

(SV

11 O

N)

Mai

nly

cool

ing

(Ind

oor

cool

ing)

Mai

nly

heat

ing

(Ind

oor

cool

ing)

OA

ll he

atin

gM

ainl

y co

olin

g (I

ndoo

r he

atin

g)M

ainl

y he

atin

g (I

ndoo

r he

atin

g)

• G

as s

hort

is o

bser

ved

and

PD

and

PS

may

be

low

er th

an th

ose

in

norm

al ti

me.

• TD

and

TS

may

be

high

er th

an th

ose

in n

orm

al ti

me.

All

cool

ing

(SV

11 O

N)

Mai

nly

cool

ing

(Ind

oor

cool

ing)

Mai

nly

heat

ing

(Ind

oor

cool

ing)

• TC

J an

d T

C1

are

heat

ed s

ame

as h

eatin

g. (

Hea

ting

circ

uit)

• S

uctio

n ga

s pi

pe a

t out

door

sid

e of

sel

ecto

r un

it is

fairl

y he

ated

.D

OA

ll he

atin

gM

ainl

y co

olin

g (I

ndoo

r he

atin

g)M

ainl

y he

atin

g (I

ndoo

r he

atin

g)•

Ref

riger

ant i

mpa

ct s

ound

is h

eard

at d

efro

st ti

me.

Indo

or u

nit,

flow

sel

ecto

r un

it

OO

SV

SS

circ

uit

All

heat

ing

Mai

nly

cool

ing

(Ind

oor

heat

ing)

Mai

nly

heat

ing

(Ind

oor

heat

ing)

• R

efrig

eran

t sou

nd m

ay b

e he

ard

from

SV

SS

val

ve c

ircui

t.• T

empe

ratu

re o

f suc

tion

gas

pipe

at o

utdo

or s

ide

of th

e se

lect

or u

nit i

s hi

gher

than

that

of n

orm

al s

elec

tor

unit.

All

cool

ing

(SV

11 O

FF

)O

Che

ck v

alve

leak

age

• R

efrig

eran

t sou

nd m

ay b

e he

ard

from

che

ck v

alve

.•

Dis

char

ge g

as p

ipe

is c

old

or it

may

be

froz

en.

O C

heck

val

veci

rcui

t

P15

[Gas

leak

dete

ctio

n]

Pip

ing

Dis

char

gepi

pe L

iqui

dpi

peG

as p

ipe

Inco

rrec

tpi

ping

Dis

char

gepi

pe ↔

Suc

tion

gas

pipe

All

cool

ing

(SV

11 O

FF

)O

• Im

poss

ible

judg

men

t

All

heat

ing

Mai

nly

cool

ing

(Ind

oor

heat

ing)

Mai

nly

heat

ing

(Ind

oor

heat

ing)

O

O

• Tem

pera

ture

of s

uctio

n ga

s pi

pe a

t out

door

sid

e of

the

FS

uni

t is

hig

her

than

that

of t

he n

orm

al F

S u

nit.

Par

t n

ame

O

Tro

ub

lem

od

eO

per

atio

n m

od

e

Ph

eno

men

on

wh

ich

ap

pea

rs a

s re

sult

(Co

rres

po

nd

ing

ind

oo

r u

nit

or

flo

w s

elec

tor

un

it)

Jud

gm

ent

and

po

siti

on

to

be

chec

ked

Exa

mp

le o

fre

frig

eran

tfl

ow

No

tco

ole

dN

ot

hea

ted

May

bec

om

eal

mo

st n

orm

alca

pac

ity

Ab

no

rmal

refr

iger

ant s

ou

nd

Cir

cula

ting

sou

nd

Det

ecti

on

of

chec

k co

de

– 200 –

<REFERENCE> An Example of Refrigerant Flow in FS Unit When Trouble Occurred

AB

CD

• In

corr

ect w

iring

/inco

rrec

t mou

ntin

g o

f coi

l (S

VD

⇔ S

VS

)•

SV

11 O

N•

Con

trol

: SV

S O

N, A

ctua

lly: S

VD

ON

•SV

D le

akag

e•

SV

11 O

N•

SV

S O

N

• In

corr

ect w

iring

/inco

rrec

t mou

ntin

g of

c

oil (

SV

D ⇔

SV

S)

• S

V11

ON

• C

ontr

ol: S

VS

ON

, Act

ually

: SV

S O

N

• In

corr

ect p

ipin

g (S

uctio

n ga

s pi

pe ⇔

Dis

char

ge g

as p

ipe)

• S

V11

ON

• S

VS

ON

SV

SS

SV

DD

Suc

tion

gas

pipe

Dis

char

ge g

as p

ipe

Liqu

id p

ipe

Suc

tion

gas

pipe

Dis

char

ge g

as p

ipe

Liqu

id p

ipe

Suc

tion

gas

pipe

Dis

char

ge g

as p

ipe

Liqu

id p

ipe

Suc

tion

gas

pipe

Dis

char

ge g

as p

ipe

Liqu

id p

ipe

SD

VS

VS

Coo

ling

oper

atio

n

Indoor unitCool/Heat FS unit

Not

coo

led

Coo

ling

oper

atio

nW

arm

win

d is

out

.H

eatin

g op

erat

ion

Coo

l win

d is

out

.C

oolin

g op

erat

ion

War

m w

ind

is o

ut.

SV

SV

SV

SV

SV

SS

SV

DD

SD

VS

VS

SV

SV

SV

SV

SV

SS

SV

DD

SD

VS

VS

SV

SV

SV

SV

SV

SS

SV

DD

TC

2T

CJ

TC

1

PMV

TC

2T

CJ

TC

1

PMV

TC

2T

CJ

TC

1

PMV

TC

2T

CJ

TC

1

PMV

SD

VS

VS

SV

SV

SV

SV

– 201 –

9-8-2. Troubleshooting when Multiple Indoor Units are Connected to Cool/Heat FS UnitWhen multiple indoor units are connected to a Cool/Heat FS unit, it is necessary to set the Code No. [0E]. Ifthis setting is forgotten, normal operation is impossible.

[Case that Code No. [0E] is set]All the indoor units which are connected to the identicalCool/Heat FS unit operate according to the operationmode of the header unit. The Cool/Heat FS unit keeps theoperation mode until all the indoor units will bethermostat-OFF.

[Case that Code No. [0E] is not set]As the Cool/Heat FS unit is controlled by the indoor unitwhich is connected with inter-unit wiring, a normaloperation is unavailable.(In the right figure, operation follows to the indoor unit A.)

If Code No. [0E] is not set, the symptom below appears:When the following trouble occurred, confirm the Code No. [0E] and then set the Code No. referring to item“How to connect multiple indoor units to a Cool/Heat FS unit”.


Indoor unit A Indoor unit B

Remote controller

Inter-unit wiring

Refrigerant piping

Connection to remote controller group only is available.Remote controller individual to each indoor unit is unavailable.

[1] [Cool] is set on remote controller

Indoor unit A Indoor unit BCool/Heat FS unit

SymptomSVS SVSS SVD SVDD

Cooling operation1 Cooling operation ON ON OFF OFF Normal operation

Cooling operation2 Cooling thermo-OFF ON ON OFF OFF Normal operation

Cooling thermo-OFF3 Cooling operation OFF ON OFF OFF Cooling mode is not applied to the indoor unit B. (Fan status)[H06] An error (Low-pressure protective operation) may occur.

[2] [Heat] is set on remote controller



Heating operation1 Heating operation OFF OFF ON OFF Normal operation.

Heating operation2 Heating thermo-OFF OFF OFF ON OFF Normal operation.

Heating thermo-OFF3 Heating operation OFF OFF ON OFF Normal operation.

[3] [Cool/Heat Auto] is set on remote controller



Cooling operation1 Cooling operation ON ON OFF OFF Normal operation.

Cooling operation2 Cooling thermo-OFF ON ON OFF OFF Normal operation.

Cooling operation3 Heating operation ON ON OFF OFF Indoor unit [L18] error (Cool/Heat FS unit line error)

Heating operation6 Heating operation OFF OFF ON OFF Normal operation.

Heating operation7 Heating thermo-OFF OFF OFF ON OFF Normal operation.

Heating operation8 Cooling operation OFF OFF ON OFF Indoor unit B discharges warm wind.

Heating thermo-OFF9 Heating operation OFF OFF ON OFF Normal operation.

Heating thermo-OFF10 Cooling operation OFF OFF ON OFF Indoor unit B discharges warm wind.

Cooling thermo-OFF4 Cooling operation OFF ON OFF OFF Heating mode is not applied to the indoor unit B. (Fan status)[H06] An error (Low-pressure protective operation) may occur.

Cooling thermo-OFF5 Heating operation OFF ON OFF OFF Heating mode is not applied to the indoor unit B. (Fan or stop status)[P20] An error (High-pressure protective operation) may occur.

– 202 –

9-9. Sensor CharacteristicsOutdoor Unit

Temperature sensor characteristics

-4 (-20)5 (-15)

14 (-10)23 (-5)32 (0)41 (5)

50 (10)59 (15)68 (20)77 (25)86 (30)95 (35)

104 (40)113 (45)122 (50)131 (55)140 (60)149 (65)158 (70)167 (75)176 (80)

108.180.059.845.334.626.620.616.112.710.08.06.45.24.23.42.82.31.91.61.31.1

Resistance [kΩ]Temperature [˚F (˚C)]

-4 (-20)5 (-15)

14 (-10)23 (-5)32 (0)41 (5)

50 (10)59 (15)68 (20)77 (25)86 (30)95 (35)

104 (40)113 (45)122 (50)131 (55)140 (60)149 (65)158 (70)167 (75)176 (80)

102.976.654.744.033.826.120.416.012.610.08.06.45.24.23.52.82.31.91.61.41.1


32 (0)41 (5)

50 (10)59 (15)68 (20)77 (25)86 (30)95 (35)

104 (40)113 (45)122 (50)131 (55)140 (60)149 (65)158 (70)167 (75)176 (80)185 (85)194 (90)203 (95)

212 (100)221 (105)230 (110)239 (115)248 (120)

159.2124.598.177.862.149.940.332.726.721.918.115.012.510.48.87.46.35.34.53.93.42.92.52.21.9


Outdoor TS1, TS2 and TL sonsor

Outdoor TD1,TD2,TD3,TK1,TK2,TK3,TK4 and TK5 sensor

Resistance[ kΩ]

( 50˚F (10˚C)or below )

Resistance[ kΩ]

( 50˚F (10˚C)or above )

Resistance[ kΩ]

( 50˚F (10˚C)or below )

Resistance[ kΩ]

( 50˚F (10˚C)or above )

Resistance[ kΩ]

( 50˚F (10˚C)or below )

Resistance[ kΩ]

( 50˚F (10˚C)or above )

10

15

25

5

20

050

(10)68

(20)86

(30)104(40)

122(50)

140(60)

158(70)

14(-10)

32(0)

Temperature [˚F(˚C)]

176(80)

194(90)

212(100)

-4(-20)

-22(-30)

50(10)

68(20)

86(30)

104(40)

122(50)

140(60)

158(70)

14(-10)

32(0)

176(80)

194(90)

212(100)

-4(-20)

-22(-30)

100

150

50

34.6kΩ

33.8kΩ

10.0kΩ

52.0kΩ

3.3kΩ

200


200

0

10

20

5

15

0104(40)

86(30)

68(20)

50(10)

158(70)

176(80)

194(90)

212(100)

230(110)

248(120)

266(130)

122(50)

140(60)

100

150

50

0

10

15

5

20

0

100

150

50

200

0


Outdoor TE1, TE2 and TO sensor

– 203 –

Outdoor Unit

Pressure sensor characteristics• Input/output wiring summary

• Output voltage vs. pressure

Indoor Unit

Temperature sensor characteristics

Pin No.High pressure side (Pd) Low pressure side (Ps)

Input/output name Lead wire color Lead wire colorInput/output name

OUTPUT

—

GND

+5V

1

2

3

4

White

—

Black

Red

—

White

Black

Red

—

OUTPUT

GND

+5V

Input/output name Input/output name

0.5~4.3V0~54 psi ( 0~3.73MPa )

0.5~3.5V0~141 psi ( 0~0.98 MPa )

0 540(4.41)

740(5.1)

0.5

4.3

5

0 142(0.98)

213(1.47)

740(5.1)

0.5

3.5

5

541(3.73)

Hig

h pr

essu

re-s

ide

outp

ut v

olta

ge (

V)

Low

pre

ssur

e-si

de o

utpu

t vol

tage

(V

)

Pressure [psi (MPa)] Pressure [psi (MPa)]

Indoor TA sensor

Resistance[kΩ]

Temperature [°F(°C)]

140(60)

50(10)

68(20)

86(30)

104(40)

122(50)

20

30

10

0

32 (0)41 (5)50 (10)59 (15)68 (20)77 (25)86 (30)95 (35)104 (40)113 (45)122 (50)131 (55)140 (60)

33.826.120.416.012.610.08.06.45.24.23.52.82.3


– 204 –

10

15

5

20

0

100

150

50

200

0

10

15

5

20

0

100

150

50

200

0

Indoor TC1 sensor

Indoor TC2 and TCJ sensor

-4 (-20)5 (-15)

14 (-10)23 (-5)32 (0)41 (5)

50 (10)59 (15)68 (20)77 (25)86 (30)95 (35)

104 (40)113 (45)122 (50)131 (55)140 (60)149 (65)158 (70)167 (75)176 (80)185 (85)194 (90)203 (95)

212 (100)

98.373.755.842.632.825.520.015.712.510.08.16.55.34.43.63.02.52.11.71.51.21.10.90.80.7


-4 (-20)5 (-15)

14 (-10)23 (-5)32 (0)41 (5)

50 (10)59 (15)68 (20)77 (25)86 (30)95 (35)

104 (40)113 (45)122 (50)131 (55)140 (60)149 (65)158 (70)167 (75)176 (80)

102.976.657.744.038.826.120.416.012.610.08.06.45.24.23.52.82.31.91.61.41.2


50(10)

68(20)

86(30)

104(40)

122(50)

140(60)

158(70)

14(-10)

32(0)

176(80)

194(90)

212(100)

-4(-20)

-22(-30)

Resistance[ kΩ]

( 50˚F (10˚C)or below )

Resistance[ kΩ]

( 50˚F (10˚C)or above )

Resistance[ kΩ]

( 50˚F (10˚C)or below )

Resistance[ kΩ]

( 50˚F (10˚C)or above )


50(10)

68(20)

86(30)

104(40)

122(50)

140(60)

158(70)

14(-10)

32(0)

176(80)

194(90)

212(100)

-4(-20)

-22(-30)


– 205 –

9-10.Pressure sensor output checkOutdoor Unit

Pd sensor characteristics0 to 639 psi (4.41 MPa) (0.5 to 5 V output for 0 to 639 psi (4.41 MPa))Voltage readings across pins 2 and 3 of CN501 on indoor unit main P.C. board (with negative-side probe ofmultimeter placed on pin 3)

0.00

0.02

0.04

0.06

0.08

0.10

0.12

0.14

0.16

0.18

0.20

0.22

0.23

0.25

0.27

0.29

0.31

0.33

0.35

0.37

0.39

0.41

0.43

0.45

0.47

0.49

0.51

0.53

0.55

0.57

0.59

0.61

0.63

0.65

0.66

0.68

0.70

0.72

0.74

0.76

0.78

0.80

0.82

0.84

0.86

0.88

0.90

0.92

0.94

0.96

0.98

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.01

0.03

0.05

0.07

0.08

0.10

0.12

0.14

0.16

0.18

0.20

0.22

0.24

0.26

0.28

0.30

0.31

0.33

0.35

0.37

0.39

0.41

0.43

0.45

0.47

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

4

7

10

12

15

17

20

23

26

29

32

35

38

41

44

45

48

51

54

57

59

62

65

68

1.00

1.02

1.04

1.06

1.07

1.09

1.11

1.13

1.15

1.17

1.19

1.21

1.23

1.25

1.27

1.29

1.31

1.33

1.35

1.37

1.39

1.41

1.43

1.45

1.47

1.48

1.50

1.52

1.54

1.56

1.58

1.60

1.62

1.64

1.66

1.68

1.70

1.72

1.74

1.76

1.78

1.80

1.82

1.84

1.86

1.88

1.90

1.91

1.93

1.95

1.97

0.49

0.51

0.53

0.54

0.56

0.58

0.60

0.62

0.64

0.66

0.68

0.70

0.72

0.74

0.76

0.77

0.79

0.81

0.83

0.85

0.87

0.89

0.91

0.93

0.95

0.97

0.99

1.00

1.02

1.04

1.06

1.08

1.10

1.12

1.14

1.16

1.18

1.20

1.21

1.23

1.25

1.27

1.29

1.31

1.33

1.35

1.37

1.39

1.41

1.43

1.44

71

74

77

78

81

84

87

90

93

96

99

102

104

107

110

112

115

117

120

123

126

129

132

135

138

141

144

145

148

151

154

157

160

162

165

168

171

174

175

178

181

184

187

190

193

196

199

202

204

207

209

1.99

2.01

2.03

2.05

2.07

2.09

2.11

2.13

2.15

2.17

2.19

2.21

2.23

2.25

2.27

2.29

2.31

2.32

2.34

2.36

2.38

2.40

2.42

2.44

2.46

2.48

2.50

2.52

2.54

2.56

2.58

2.60

2.62

2.64

2.66

2.68

2.70

2.72

2.73

2.75

2.77

2.79

2.81

2.83

2.85

2.87

2.89

2.91

2.93

2.95

2.97

1.46

1.48

1.50

1.52

1.54

1.56

1.58

1.60

1.62

1.64

1.66

1.67

1.69

1.71

1.73

1.75

1.77

1.79

1.81

1.83

1.85

1.87

1.89

1.90

1.92

1.94

1.96

1.98

2.00

2.02

2.04

2.06

2.08

2.10

2.12

2.13

2.15

2.17

2.19

2.21

2.23

2.25

2.27

2.29

2.31

2.33

2.35

2.36

2.38

2.40

2.42

212

215

218

220

223

226

229

232

235

238

241

242

245

248

251

254

257

260

262

265

268

271

274

276

278

281

284

287

290

293

296

299

302

305

307

309

312

315

318

320

323

326

329

332

335

338

341

342

345

348

351

2.99

3.01

3.03

3.05

3.07

3.09

3.11

3.13

3.15

3.16

3.18

3.20

3.22

3.24

3.26

3.28

3.30

3.32

3.34

3.36

3.38

3.40

3.42

3.44

3.46

3.48

3.50

3.52

3.54

3.56

3.57

3.59

3.61

3.63

3.65

3.67

3.69

3.71

3.73

3.75

3.77

3.79

3.81

3.83

3.85

3.89

3.89

3.91

3.93

3.95

3.97

2.44

2.46

2.48

2.50

2.52

2.54

2.56

2.57

2.59

2.61

2.63

2.65

2.67

2.69

2.71

2.73

2.75

2.77

2.79

2.80

2.82

2.84

2.86

2.88

2.90

2.92

2.94

2.96

2.98

3.00

3.02

3.03

3.05

3.07

3.09

3.11

3.13

3.15

3.17

3.19

3.21

3.23

3.25

3.26

3.28

3.30

3.32

3.34

3.36

3.38

3.40

354

357

360

363

365

368

371

373

376

378

381

384

387

390

393

396

399

402

405

406

409

412

415

418

421

423

426

429

432

435

438

439

442

445

448

451

454

457

460

463

465

468

471

473

476

479

481

484

487

490

493

3.98

4.00

4.02

4.04

4.06

4.08

4.10

4.12

4.14

4.16

4.18

4.20

4.22

4.24

4.26

4.28

4.30

4.32

4.34

4.36

4.38

4.40

4.41

4.43

4.45

4.47

4.49

4.51

4.53

4.55

4.57

4.59

4.61

4.63

4.65

4.67

4.69

4.71

4.73

4.75

4.77

4.79

4.81

4.82

4.84

4.86

4.88

4.90

4.92

4.94

4.96

4.98

3.42

3.44

3.45

3.48

3.49

3.51

3.53

3.55

3.57

3.59

3.61

3.63

3.65

3.67

3.69

3.70

3.72

3.74

3.76

3.78

3.80

3.82

3.84

3.86

3.88

3.90

3.92

3.93

3.95

3.97

3.99

4.01

4.03

4.05

4.07

4.09

4.11

4.13

4.15

4.16

4.18

4.20

4.22

4.24

4.26

4.28

4.30

4.32

4.34

4.36

4.38

4.39

496

499

500

505

506

509

512

515

518

521

523

526

529

532

535

537

539

542

545

548

551

554

557

560

563

566

568

570

573

576

579

581

584

587

590

593

596

599

602

603

606

609

612

615

618

621

624

626

629

632

635

637

VOLT(V)

Pd(MPa)

Pd(psi)

VOLT(V)

Pd(MPa)

Pd(psi)

VOLT(V)

Pd(MPa)

Pd(psi)

VOLT(V)

Pd(MPa)

Pd(psi)

VOLT(V)

Pd(MPa)

Pd(psi)

– 206 –

Outdoor Unit Ps sensor characteristics

0 to 215 psi (1.47 MPa) (0.5 to 5 V output for 0 to 215 psi (1.47 MPa))Voltage readings across pins 2 and 3 of CN500 on indoor unit main P.C. board (with negative-side probe ofmultimeter placed on pin 3)

0.00

0.02

0.04

0.06

0.08

0.10

0.12

0.14

0.16

0.18

0.20

0.22

0.23

0.25

0.27

0.29

0.31

0.33

0.35

0.37

0.39

0.41

0.43

0.45

0.47

0.49

0.51

0.53

0.55

0.57

0.59

0.61

0.63

0.65

0.66

0.68

0.70

0.72

0.74

0.76

0.78

0.80

0.82

0.84

0.86

0.88

0.90

0.92

0.94

0.96

0.98

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.00

0.01

0.02

0.02

0.03

0.03

0.04

0.05

0.05

0.06

0.07

0.07

0.08

0.09

0.09

0.10

0.11

0.11

0.12

1.12

0.13

0.14

0.14

0.15

0.16

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

0

1

3

3

4

4

6

7

7

9

10

10

12

13

13

15

16

16

17

18

??

20

20

22

23

1.00

1.02

1.04

1.06

1.07

1.09

1.11

1.13

1.15

1.17

1.19

1.21

1.23

1.25

1.27

1.29

1.31

1.33

1.35

1.37

1.39

1.41

1.43

1.45

1.47

1.48

1.50

1.52

1.54

1.56

1.58

1.60

1.62

1.64

1.66

1.68

1.70

1.72

1.74

1.76

1.78

1.80

1.82

1.84

1.86

1.88

1.90

1.91

1.93

1.95

1.97

0.16

0.17

0.18

0.18

0.19

0.19

0.20

0.21

0.21

0.22

0.23

0.23

0.24

0.25

0.25

0.26

0.26

0.27

0.28

0.28

0.29

0.30

0.30

0.31

0.32

0.32

0.33

0.34

0.34

0.35

0.35

0.36

0.37

0.37

0.38

0.39

0.39

0.40

0.41

0.41

0.42

0.42

0.43

0.44

0.44

0.45

0.46

0.46

0.47

0.48

0.48

23

25

26

26

28

28

29

30

30

32

33

33

35

36

36

38

38

39

41

41

42

44

44

45

46

46

48

49

49

51

51

52

54

54

55

57

57

58

59

59

61

61

62

64

64

65

67

67

68

70

70

1.99

2.01

2.03

2.05

2.07

2.09

2.11

2.13

2.15

2.17

2.19

2.21

2.23

2.25

2.27

2.29

2.31

2.32

2.34

2.36

2.38

2.40

2.42

2.44

2.46

2.48

2.50

2.52

2.54

2.56

2.58

2.60

2.62

2.64

2.66

2.68

2.70

2.72

2.73

2.75

2.77

2.79

2.81

2.83

2.85

2.87

2.89

2.91

2.93

2.95

2.97

0.49

0.49

0.50

0.51

0.51

0.52

0.53

0.53

0.54

0.55

0.55

0.56

0.56

0.57

0.58

0.58

0.59

0.60

0.60

0.61

0.62

0.62

0.63

0.64

0.64

0.65

0.65

0.66

0.67

0.67

0.68

0.69

0.69

0.70

0.71

0.71

0.72

0.72

0.73

0.74

0.74

0.75

0.76

0.76

0.77

0.78

0.78

0.79

0.79

0.80

0.81

71

71

73

74

74

75

77

77

78

80

80

81

81

83

84

84

86

87

87

88

90

90

91

93

93

94

94

96

97

97

99

100

100

102

103

103

104

104

106

107

107

109

110

110

112

113

113

115

115

116

117

2.99

3.01

3.03

3.05

3.07

3.09

3.11

3.13

3.15

3.16

3.18

3.20

3.22

3.24

3.26

3.28

3.30

3.32

3.34

3.36

3.38

3.40

3.42

3.44

3.46

3.48

3.50

3.52

3.54

3.56

3.57

3.59

3.61

3.63

3.65

3.67

3.69

3.71

3.73

3.75

3.77

3.79

3.81

3.83

3.85

3.89

3.89

3.91

3.93

3.95

3.97

0.81

0.82

0.83

0.83

0.84

0.85

0.85

0.86

0.86

0.87

0.88

0.88

0.89

0.90

0.90

0.91

0.92

0.92

0.93

0.94

0.94

0.95

0.95

0.96

0.97

0.97

0.98

0.99

0.99

1.00

1.01

1.01

1.02

1.02

1.03

1.04

1.04

1.05

1.06

1.06

1.07

1.08

1.08

1.09

1.09

1.10

1.11

1.11

1.12

1.13

1.13

117

119

120

120

122

123

123

125

125

126

128

128

129

131

131

132

133

133

135

136

136

138

138

139

141

141

142

144

144

145

146

146

148

148

149

151

151

152

154

154

155

157

157

158

158

160

161

161

162

164

164

3.98

4.00

4.02

4.04

4.06

4.08

4.10

4.12

4.14

4.16

4.18

4.20

4.22

4.24

4.26

4.28

4.30

4.32

4.34

4.36

4.38

4.40

4.41

4.43

4.45

4.47

4.49

4.51

4.53

4.55

4.57

4.59

4.61

4.63

4.65

4.67

4.69

4.71

4.73

4.75

4.77

4.79

4.81

4.82

4.84

4.86

4.88

4.90

4.92

4.94

4.96

4.98

1.14

1.15

1.15

1.16

1.17

1.17

1.18

1.18

1.19

1.20

1.20

1.21

1.22

1.22

1.23

1.24

1.24

1.25

1.25

1.26

1.27

1.27

1.28

1.29

1.29

1.30

1.31

1.31

1.32

1.32

1.33

1.34

1.34

1.35

1.36

1.36

1.37

1.38

1.38

1.39

1.39

1.40

1.41

1.41

1.42

1.43

1.43

1.44

1.45

1.45

1.46

1.47

165

167

167

168

170

170

171

171

173

174

174

175

177

177

178

180

180

181

181

183

184

184

186

187

187

189

190

190

191

191

193

194

194

196

197

197

199

200

200

202

202

203

204

204

206

207

207

209

210

210

212

213

VOLT(V)

Ps(MPa)

Ps(psi)

VOLT(V)

Ps(MPa)

Ps(psi)

VOLT(V)

Ps(MPa)

Ps(psi)

VOLT(V)

Ps(MPa)

Ps(psi)

VOLT(V)

Ps(MPa)

Ps(psi)

– 207 –

10. BACKUP OPERATION (EMERGENCY OPERATION)This product offers backup modes of operation to tide over certain emergency situations. If a fault occurs inone of the compressors, it is possible to operate the system on an emergency basis by operating only theremaining compressor(s), (compressor backup operation).If one of the outdoor units fails in a combined outdoor unit system, the system can be operated on anemergency basis by keeping only the remaining outdoor unit(s), (outdoor unit backup operation).Perform backup operation setting in accordance with the procedure described below.

10-1.Note for Backup OperationThe method of backup operation differs according to the contents of fault as shown in the table below.

Note 1: Keep the number of backed-up outdoor units under compressor backup operation to one in the system(single refrigerant line). For a three-compressor model, the backing up of two faulty compressors isprohibited.

Note 2: It is prohibited to combine compressor backup operation and outdoor unit backup operation.

Note 3: With a two-outdoor unit system containing an MMY-MAP120∗ (or MAP096∗) and an MMY-MAP072∗,do not preform outdoor unit backup operation to back up the MMY-MAP120∗ (or MAP096∗).It could lead to compressor failure due to the abnormal operation.

Contents of fault Method of backup operation Setting procedure

Go to 11-2.Compressor backup (see Note 1)One of the compressors in the same unit fails (see Note 1)

Go to 11-3Outdoor unit backup or cooling-season outdoor unit backup (seeNotes 2 and 3)

All the compressors in the same unit fail

A fault occurs in a compressor motor coil (e.g. a layer short-circuit)

A fault occurs in a refrigerating cycle part, fan or related part, or electrical part

A fault occurs in a temperature sensor or pressure sensor

Fau

lty

Fau

lty

Example

Prohibited

Example

Prohibited

Backed-up compressor Backed-up compressor Two backed-up compressors

Fau

lty

Fau

lty

Fau

lty

Example

Prohibited

Backed-up compressor Backed-up outdoor unit

Faulty

MMY-MAP120∗(MMY-MAP096∗)

MMY-MAP072∗

Example

Prohibited

Faulty

Backed-up outdoor unit

– 208 –

10-2.Compressor Backup Operation Setting<Outline>If a fault occurs to one of the compressors installed in outdoor unit, follow the procedure described below toback up the faulty compressor by using the remaining, normal compressor(s).<Work Procedure>(1) Turn off the power supply to all the outdoor units connected to the system.(2) Set the DIP switches of SW06, provided on the interface P.C. board of the outdoor unit with the faulty

compressor, as shown in the table below.

(3) Turn on the power supply to all the units connected to the system.

This is the end of compressor backup operation setting.

Three-compressor modelSW06

SW06

Bit 1 Bit 2 Bit 3 Bit 4


Factory default setting

When compressor No. 1 (front left) is faulty

When compressor No. 2 (front center) is faulty

When compressor No. 3 (front right) is faulty

Two-compressor model

Factory default setting OFF

ON

OFF

OFF

OFF

ON

OFF

ON

OFF

OFF

OFF

OFF

ON

OFF

OFF

OFF

OFF

ON

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

OFF

When compressor No.1 (front left) is faulty

When compressor No.2 (front right) is faulty

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

SW06 SW07 SW09 SW10

SW11 SW12

1 2 3 4 1 2 3 4

SW16 SW17

SW13 SW14

– 209 –

10-3.Backup Setup for Outdoor UnitOutlineIn this model, setup of the backup operation is available in either the header unit or the follower unit in asituation where the outdoor units are defective. In a system in which two or more outdoor units are connected,carry out the backup operation on the outdoor unit if the error modes described below occur.• Compressor error (Rare short error or when one compressor cannot operate, etc.)• Pressure sensor (Pd, Ps) / Temperature sensor (TD1, TD2, TD3, TS1, TS2, TE1, TE2, TK1, TK2, TK3, TK4,

TK5, TL) errorNote only one outdoor unit within a given system can be subjected to the backup procedure.

Procedure(1) Turn off the main power supplies to all the units connected to the system.[Set up procedure for the malfunctioning outdoor unit]

(The following work is common to the header unit and follower units in the system.)(2) Set the DIP switches of SW06, provided on the interface P.C. board of the outdoor unit with the faulty

compressor, as shown in the table below.

(3) When there is leakage of outdoor PMV (does not close) or a trouble, close the liquid valve service valves fully.(4) Turn on the power supply to all the units connected to the system.

When a trouble due to insufficient insulation, etc. occurred, remove in advance lead wire of the compressor.This is the end of compressor backup operation setting.

Three-compressor modelSW06

SW06



Factory default setting

Outdoor unit backup

Two-compressor model

Factory default setting OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

ON

OFF

OFF

OFF

OFF

OFF

OFFOutdoor unit backup

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

1 2 3 4 1 2 3 4 1 2 3 4 1 2 3 4

SW06 SW07 SW09 SW10

SW11 SW12

1 2 3 4 1 2 3 4

SW16 SW17

SW13 SW14

– 210 –

11. OUTDOOR UNIT REFRIGERANT RECOVERY METHOD11-1. Refrigerant Recovery from Failed Outdoor Unit (Pump-Down)This product supports refrigerant pump-down, a function which allows refrigerant to be recovered from anoutdoor unit in need of repair using a normal outdoor unit in a system featuring multiple outdoor units.

11-1-1. Note for refrigerant recovery operation

When performing pump-down operation, take note of the following matters:Note 1: The pump-down refrigerant recovery rate changes with outside temperature and other factors.

After pump-down is completed, recover any residual gas using a refrigerant recovery device, etc., andbe sure to measure the amount of recovered refrigerant. (The refrigerant recovery rate can beimproved by heating the accumulator of the outdoor unit to be repaired during pump-down operation.)

Note 2: If pump-down has been performed, the system cannot be operated until the faulty outdoor unit isrepaired.(Continued operation would be impossible due to a refrigerant overcharge.)

Note 3: If outdoor PMVs 1 and 2 both happen to be faulty (unable to open) or PMV 4 fails while fully closed,the refrigerant in the heat exchangers (or sub-heat exchangers) cannot be recovered. In that case,recover any residual gas in the heat exchangers (or sub-heat exchangers) using a tube piercing valveor some other tool. After a pump-down operation, do not perform any welding until the residual gas inthe heat exchangers is recovered.

11-1-2. Refrigerant recovery procedure A (Case of no outdoor unit backup operation setting)

<Work procedure>Turn on the power supply to the system at the source, but leave the system switched off.If the fault involves poor insulation of a compressor motor, remove the motor leads before the power is turned on.[Setup of failed outdoor unit](1) Connect the check joint of liquid pipe and the low pressure-side check joint using a charge hose, and purge

the hose of air (to recover refrigerant from the liquid tank and heat exchangers).(2) Fully close the liquid pipe service valve and service valve at discharge gas side of the failed outdoor unit.

(Leave the service valves of the suction gas and balance pipes fully open.)(3) If the oil is likely to has degraded due to a compressor fault, disconnect the SV3A valve connector of the

failed outdoor unit (to prevent the degraded oil from flowing into other outdoor units).(4) Set SW01/02/03 on the interface P.C. board of the failed outdoor unit to 2/11/1. After [rd] [… … …] is

displayed on the 7-segment display, push SW04 and hold for 5 seconds or more.(5) [rd] [… FF] will be displayed on the 7-segment display, and pump-down operation will start.* To put the operation on hold midway, turn off the power supply to all the outdoor units, or push SW05 on the

interface P.C. board.

Header unit

Interface P.C. board of failed outdoor unit

(3)If oil has degraded due tocompressor fault, undo SV3Avalve connector.

(4) Set SW01/02/03 to 2/11/1. [rd] [ ... ... ...] is displayed.

Push SW04 and hold for 5 seconds or more.(5) [rd] [ FF] is displayed (pump-down operation starts).Behavior during pump-down operationOutdoor unit Behavior

Failed outdoor unit

Compressors: Turned offOutdoor fan: OnPMV1, PMV2 and PMV4: OpenSV2/3A/3B/3C/3D/3E/3F: OnSV41/42/43/5/6: On

Every other outdoor unit Operates in test coolingoperation mode

↓

(1)

(2)

Connect liquid pipe check joint and lowpressure-side check joint using chargehose, and purge hose of air.

Fully close liquid pipe service valve and valve at discharge gas side.(Leave service valves of gas andbalance pipes fully open.)

– 211 –

(6) Approx. 10 minutes after the system starts up, fully close the gas pipe service valve of the failed outdoorunit.

(7) Push SW04 of the failed outdoor unit to have pressure data psi (MPa) displayed.(The display switches each time SW04 is pushed.)Display Example

[Selection of outdoor unit for pressure adjustment](8) The outdoor units operating in the pump-down mode, is selevted to the outdoor unit for pressure

adjustment.

Identifying Unit No.The unit No. is the number displayed on the 7-segment display when SW01/02/03 are set to 1/1/1.([U#] [– – –]: # represents the unit No.)

[Setup of outdoor unit for pressure adjustment](9) Set SW01/02/03 on the interface P.C. board of the outdoor unit for pressure adjustment to 1/2/2.(10) As the low-pressure sensor output is displayed on the 7-segment display, adjust the pressure to around

17 psi (0.12 MPa) by slowly closing the gas pipe service valve, with checking pressure data.(11) Compare the low-pressure sensor outputs of the failed unit with that of the unit for pressure adjustment,

and wait until the two pressure readings become almost the same. After letting the system continueoperating for a while longer, fully close the gas pipe service valve of the unit for pressure adjustment.

[Setup of failed outdoor unit](12) When the low-pressure sensor output of the failed outdoor unit falls below 14.5 psi (0.10MPa), fully close

the balance pipe packed valve, and push SW05 on the interface P.C. board to finish the pump-downoperation.

(13) Turn off the power supply to all the outdoor units, and recover the residual refrigerant in the outdoor unitusing a refrigerant recovery device. Be sure to measure the amount of recovered refrigerant. (This isnecessary to determine how much additional refrigerant will be needed after the completion of the repair.)

[rd] […11]Initial display

[Pd] [1.20]High-pressure sensor output

[Ps] [1.20]Low-pressure sensor output

Failed outdoor unitUnit for pressure adjustment

(6)

(11)

(13)

(12)

Approx. 10 minutes after system startup,fully close the suction gas pipe service valve.

(8)The outdoor units operating in the pump-down mode, is selevted to the outdoorunit for pressure adjustment.

While monitoring low-pressuresensor output, adjust pressure toaround 17 psi (0.12 MPa) by slowlyclosing suction gas pipe service valve.

When low-pressure sensor output of failedoutdoor unit falls below 14.5 psi (0.10 MPa),fully close balance pipe packed valve.Push SW05 to finish pump-down operation.

Turn off power supply to all outdoor units atsource, and recover residual refrigerant inoutdoor unit using refrigerant recovery device.Measure amount of recovered refrigerant.

Wait until low-pressure sensoroutputs of failed outdoor unit andoutdoor unit for pressureadjustment become almostidentical, and, after letting systemcontinue operating for while longer,fully close gas pipe service valve.

(7)Push SW04 to havelow-pressure sensoroutput displayed[Ps] [###]

(9) (10)Set SW01/02/03 to1/2/2 to have lowpressure sensoroutput displayed.[Ps] [###]

This is the end of the refrigerant recovery operation.Set SW01/02/03 of the failed outdoor unit and the outdoor unit for pressure adjustment back to 1/1/1.

– 212 –

[Setup of the power cannot be turned on the failed outdoor unit]If the power cannot be turned on the failed outdoor unit, the solenoid valves and PMVs of the unit cannot beturned on, so that it reduces the amount of recovered refrigerant compared to a standard pump-downoperation. Recover the residual gas in the unit using a refrigerant recovery device, and be sure to measure theamount of recovered refrigerant.

<Work procedure>[Setup of failed outdoor unit](1) Connect the liquid pipe check joint and the low pressure-side check joint using a gauge manifold, and

purge the manifold of air (to recover refrigerant from the liquid tank and heat exchangers).(2) Fully close the liquid pipe packed valve and service valve at discharge gas side of the failed outdoor unit.

(Leave the service valve of the suction gas pipe and the packed valve of the balance pipe fully open.)[Setup of unit selected as header unit (hereafter “header outdoor unit”)](3) Set SW01/02/03 on the interface P.C. board of the header outdoor unit to 2/5/1. After [C. ] [… … …] is

displayed on the 7-segment display, push SW04 and hold for 5 seconds or more.(4) After [C. …] [… – C] is displayed on the 7-segment display, the system starts operating in the test cooling

operation mode.(5) Set SW01/02/03 on the interface P.C. board of the header outdoor unit to 1/2/2 to have the low-pressure

sensor output psi (MPa) displayed on the 7-segment display.

(6) Approx. 10 minutes after the system starts up, fully close the suction gas pipe service valve of the failedoutdoor unit.

[Setup of outdoor unit for pressure adjustment](7) Select the header unit as the unit for pressure adjustment.[Setup of header unit](8) While monitoring the low-pressure sensor output, adjust the pressure to around 17 psi (0.12 MPa) by slowly

closing the suction gas pipe service valve.(9) Compare the manifold gauge pressure of the failed unit with the low-pressure sensor output of the header

unit, and wait until the two pressure readings become almost identical. After letting the system continueoperating for a while longer, fully close the suction gas pipe service valve of the unit for pressureadjustment.

(1)

(2)

Connect liquid pipe check joint andlow pressure-side check joint usinggauge manifold, and purge manifoldof air.

Failed outdoor unit Unit selected as header unit


Fully close liquid pipe service valve.(Leave suction gas and balancepipes fully open.)

(3) Set SW01/02/03 to 2/5/1. [C. ] [ ... ... ...] is displayed

(4) Push SW04 and hold for 5 seconds or more. [C. ...] [ ... − C] is displayed. (Test cooling operation begins).

(5) Push SW04 to display the low pressure psi (MPa)

↓

↓

– 213 –

(6) (7)

(8)

(9)

(11)

Approx. 10 minutes after system startup,fully close suction gas pipe service valve.

Select header unit as unitfor pressure adjustment.

Wait until low-pressure sensor outputs offailed outdoor unit and outdoor unit forpressure adjustment become almostidentical, and, after letting system continueoperating for while longer, fully close gaspipe service valve.

While monitoring low-pressure sensoroutput, adjust pressure to around 0.12 MPaby slowly closing suction gas pipe service valve.

Turn off power supply to all outdoor units at source,and recover residual refrigerant in outdoor unit usingrefrigerant recovery device. Measure amount ofrecovered refrigerant.

When manifold gauge pressure of failed outdoor unitfalls below 0.10 MPa, fully close balance pipe packedvalve.Push SW05 to finish test cooling operation.

Header unit (outdoorunit selected as such)

Failed outdoor unit

(10)

[Setup of failed outdoor unit](10) When the manifold gauge pressure of the failed outdoor unit falls below 14.5 psi (0.10 MPa), fully close

the balance pipe packed valve, and push SW05 on the interface P.C. board to finish the test coolingoperation.

(11) Turn off the power supply to all the outdoor units, and recover the residual refrigerant in the outdoor unitusing a refrigerant recovery device. Be sure to measure the amount of recovered refrigerant. (This is

necessary to determine how much additional refrigerant will be needed after the completion of the repair.)This is the end of the refrigerant recovery operation.Set SW01/02/03 of the header unit back to 1/1/1.

– 214 –

11-2. How to Operate System While Failed Outdoor Unit Being Repaired<Outline>After refrigerant is recovered from the failed outdoor unit through a pump-down operation, the overall amountof refrigerant held by the system becomes excessive, and this makes it impossible to operate the remainingoutdoor units even though they are not faulty. However, operation is still possible if the system-wide amount ofrefrigerant is adjusted in accordance with the procedure described below.

<Work procedure>(1) Follow the steps specified in “10-1. Refrigerant Recovery from Failed Outdoor Unit (Pump-Down)”.(2) Adjust the amount of refrigerant held by the system by removing some of it using a refrigerant recovery

device, etc.Determine the amount of refrigerant to be removed according to the capacity of the failed outdoor unit. (Seethe table below.)

Example: If a 096 type outdoor unit is under repair in a 216 type system:Amount of refrigerant required by system as it was initially (216 type in capacity) = 82.6 lbAmount of refrigerant required by system with available outdoor units only (120 type in capacity) = 51.8 lbAmount of refrigerant to be removed from system = 82.6 – 51.8 = 30.8 lb

(3) Set up the outdoor unit from which refrigerant has been recovered in the manner described in “10-3.Outdoor UnitBackup Operation Setting”.This completes the procedure.

Outdoor unitcapacity type

Amount of refrigerant[ lbs (kg) ]conbined outdoor units

072 type

096 type

120 type

144 type

168 type

192 type

216 type

240 type

072 type

096 type

120 type

072 type

096 type

096 type

120 type

120 type

—

—

—

072 type

072 type

096 type

096 type

120 type

30.9 (14.0)

46.3 (21.0)

52.9 (24.0)

56.2 (25.5)

73.9 (33.5)

81.6 (37.0)

84.9 (38.5)

88.2 (40.0)

– 215 –

11-3. Work procedure after RepairWhen vacuuming in the repaired outdoor unit, follow the procedure described below.

<Work procedure>(1) Fully open PMV1 and 2 and PMV4 in accordance with the table below.Note: PMV full-opening operation via short-circuiting of the CN30 pins is automatically undone after 2

minutes, causing the valves to fully close. To maintain fully open state, turn off the power switch of theoutdoor unit within 2 minutes of the short-circuiting of the CN30 pins.

(2) Be sure to perform vacuuming in from the three check joints shown in the diagram below (liquid pipe,discharge pipe and suction pipe).

SW12CN30 PMV operation

Bit 2 Bit 3 Bit 4Bit 1

OFF OFF OFF Short-circuit PMV1 and 2 fully open for 2 minutes.OFF

ON OFF OFF Short-circuit PMV4 fully opens for 2 minutes.OFF

Check joint (Low-pressure)

Check joint (Liquid pipe)

Check joint (High-pressure)

– 216 –

NOYES

YES

NO

START

Is the outdoor unit the only one in the system?

Recover refrigerantfrom the failed unit inaccordance with “11OUTDOOR UNITREFRIGERANTRECOVERYMETHOD”.

Manually open PMV1, 2 and 4 of the failed unit (by short-circuiting the pins of CN30 on I/F P.C. board and turning off the power switch), and recover refrigerant using a refrigerant recovery device (*1).

Turn off the power switch of the failed outdoor unit.

Dismantle the faulty compressor.

Check the color of the oil in the faulty compressor.ASTM grade: Is it 4 or above?(Judge the condition of the oil against color samples,and decide whether to replace the replace to thefailed compressor only or all the compressors in thefailed outdoor unit.)

Replace both the faulty compressor and the normal compressor(s).

Measure the amount of oil in the normal compressor(s).

Adjust the amount of oil according to the oil quantity measurement result(s).

Install the new compressor(s).

Perform a leakage check of the failed outdoor unit.

Perform vacuum drying in the failed outdoor unit.

Refrigerant charging

END

Measure the amount of oil in the faulty compressor.

Replace the faulty compressor only.

12. REPLACING COMPRESSORS12-1. Compressor Replacement Procedure (Outline)

WARNING

In situations such as indoor unit relocation andrepairs, it is not possible to recover all the refrigerantheld by the system in the outdoor units.It could cause a serious accident, such as blow out orinjury.Be sure to perform refrigerant recovery using arefrigerant recovery device.

WARNING

When detaching a pipe by heating with a burner awelded joint, take care as any oil left in the pipingmay burn in a momentary flash of fire when the weldfiller metal melts.

*1 The full-opening of PMV1, 2 and 4 via short-circuiting of the CN30 pins is automaticallyundone after 2 minutes, causing the valves to fullyclose. To maintain fully open state, turn off thepower switch of the outdoor unit within 2 minutes.

This flowchart only shows the standard compressorreplacement procedure. Since the situation can differsite by site, perform the task in accordance with thefollowing judgment criteria:

(1) New compressors are charged with 0.502gal(1900cc) of oil per unit.

(2) The amount of oil held by an outdoor unit is asshown below.

(3) When a compressor is dismantled, it usuallycontains 0.211 to 0.370gal (800 to 1400cc) oil.The amount of oil held by an oil separator isusually 0 to 0.264gal (0 to 1000cc) for MAP072∗and 0 to 0.396gal (0 to 1500cc) for MAP096∗ andMAP120∗

Amount of oil 1.136gal (4300cc) 1.770gal(6700cc)

MAP072∗ MAP096∗, 120∗

– 217 –

12-2. Replacement of Compressors<Checking color of oil in faulty compressor>• Lay the faulty compressor down, draw a small amount of oil via the oil equalization pipe, and check its color

against color samples.• Determine the number of compressors to be replaced according to the color checking result.

ASTM grade: Below 4 → Replace the faulty compressor only.ASTM grade: 4 or above → Replace both the faulty compressor and the normal compressor(s).

WARNING

When detaching a pipe by heating with a burner a welded joint, take care as any oil left in the piping may burnin a momentary flash of fire when the weld filler metal melts.

[When replacing faulty compressor only]<Adjusting amount of oil in new compressor> (0.502gal (1900cc) at shipment)• Perform the adjustment on the basis of how much oil the faulty compressor contained, A [gal (cc)], by

following the steps below.

1 Amount of oil in faulty compressor A [gal (cc)]: 0 ≤≤≤≤≤ A < 0.264gal (1000cc)(1) Adjust the amount of oil in the new compressor to 0.264gal (1000cc).

(Lay the new compressor down and draw 0.238gal (900cc) of oil via the oil-equalization pipe.)Notes:• Do not draw more than 0.238gal (900cc) of oil as it may cause damage to the compressor.• If the faulty compressor contained 0.132gal (500cc) or less, there may have been a problem with the oil

equalization circuit, etc. Perform checks in accordance with “12-3. Check Procedure to Search Cause ofCompressor Oil Shortage”.

2 Amount of oil in faulty compressor A [gal (cc)]: 0.264gal (1000cc) ≤≤≤≤≤ A < 0.502gal (1900cc)(1) Adjust the amount of oil in the new compressor to A gal (cc).

(Lay the new compressor down and draw (0.502gal (1900cc) - A) [gal (cc)] of oil via the oil equalizationpipe.)

3 Amount of oil in faulty compressor A [gal (cc)]: 0.502gal (1900cc) ≤≤≤≤≤ A(1) Adjust the amount of oil in the new compressor to A gal (cc).

(Insert a hose into the discharge pipe or oil equalization pipe of the new compressor and inject (A-0.502gal(1900cc)) of oil using a funnel, etc.)

– 218 –

[When replacing normal as well as faulty compressor] - applicable to MMY-MAP072∗<Dismantling normal compressor>• Dismantle the normal compressor in the same way as the faulty compressor.Note:• Be sure to insulate the removed compressor leads using insulation tape, etc.

WARNING


<Measuring amount of oil in normal compressor>• As was the case with the faulty compressor, measure the amount of oil contained by placing the compressor

on a scale.Amount of oil in normal compressor: B [gal (cc)] = (Weight of compressor as it was dismantled (lb (kg)) - 50(22.7)) × 0.1249 (1042) (Specific volume of oil: 0.1249 (1042) [gal/lb(cc/kg)])

Note:• When a compressor is empty, it weighs 50lb (22.7kg).

<Adjusting amount of oil in new compressors>• Perform the adjustment on the basis of how much oil the faulty compressor contained, A [gal (cc)], and how

much oil the normal compressor contained, B [gal (cc)], by following the steps below.

1 Combined amount of oil in faulty and normal compressors A+B [gal (cc)]: 0 ≤≤≤≤≤ A+B < 0.528(2000)

(1) Adjust the amount of oil in the two new compressors to 0.264gal (1000cc) each (total 0.528gal (2000cc)).• Lay the compressors down and draw 0.238gal (900cc) of oil from each of them via their oil equalization

pipes.Notes:• Do not draw more than 0.238gal (900cc) of oil from a compressor as it may cause damage.• If the faulty compressor contained 0.132gal (500cc) or less, there may have been a problem with the oil


2 Combined amount of oil in faulty and normal compressors A+B [gal (cc)]: 0.528 (2000) ≤≤≤≤≤A+B < 1.004 (3800)

(1) Adjust the amount of oil in the two new compressors to (A+B)/2 gal (cc) each.• Lay the compressors down and draw [1.004 (3800)-(A+B)]/2 [gal (cc)] of oil from each of them via their oil

equalization pipes.

3 Combined amount of oil in faulty and normal compressors A+B [gal (cc)]: 1.004 (3800) ≤≤≤≤≤A+B

(1) Adjust the amount of oil in the two new compressors to (A+B)/2 gal (cc) each.(Insert a hose into the discharge pipe or oil equalization pipe of each compressor and inject (A+B)/2-0.502(1900) [gal (cc)] of oil using a funnel, etc.)

– 219 –

[When replacing normal as well as faulty compressors] - applicable to MMY-MAP096∗,MAP120∗<Dismantling normal compressors>• Dismantle the normal compressors in the same way as the faulty compressor.Note:• Be sure to insulate the removed compressor leads using insulation tape, etc.

WARNING


<Measuring amounts of oil in normal compressors>• As was the case with the faulty compressor, measure the amount of oil contained by placing each

compressor on a scale.Amount of oil in normal compressor: B, C [gal (cc)] = (Weight of compressor as it was dismantled (lb (kg)) - 50(22.7)) × 0.1249 (1042) (Specific volume of oil: 0.1249 (1042) [gal/lb (cc/kg)])

Note:• When a compressor is empty, it weighs 50lb (22.7kg).

<Adjusting amount of oil in new compressors>• Perform the adjustment on the basis of how much oil the faulty compressor contained, A [gal (cc)], and how

much oil the normal compressors contained, B and C [gal (cc)], by following the steps below.

1 Combined amount of oil in faulty compressor and two normal compressorsA+B+C [gal (cc)]: 0 ≤≤≤≤≤ A+B+C < 0.793 (3000)

(1) Adjust the amount of oil in the three new compressors to 0.264gal (1000cc) each (total 0.739gal (3000cc)).• Lay the compressors down and draw 0.238gal (900cc) of oil from each of them via their oil equalization

pipes.Notes:• Do not draw more than 0.238gal (900cc) of oil from a compressor as it may cause damage.• If the faulty compressor contained 0.132gal (500cc) or less, there may have been a problem with the oil


2 Combined amount of oil in faulty compressor and two normal compressorsA+B+C [gal (cc)]: 0.793 (3000) ≤≤≤≤≤ A+B+C < 1.506 (5700)

(1) Adjust the amount of oil in the three new compressors to (A+B+C)/3 gal (cc) each.• Lay the compressors down and draw [1.506 (5700)-(A+B+C)]/3 [gal (cc)] of oil from each of them via their oil

equalization pipes.

3 Combined amount of oil in faulty compressor and two normal compressorsA+B+C [gal (cc)]: 1.506 (5700) ≤≤≤≤≤ A+B+C

(1) Adjust the amount of oil in the three new compressors to (A+B+C)/3 gal (cc) each.(Insert a hose into the discharge pipe or oil equalization pipe of each compressor and inject (A+B+C)/3-0.502 (1900) [gal (cc)] of oil using a funnel, etc.)

– 220 –

<Installing compressor>• Install a compressor by following the dismantling procedure in reverse.

WARNING

The dismantling process may have loosened compressor leads and faston connectors. Prior to installation,therefore, tighten them a little with a pair of pliers, and verify that they are tight after reconnection.

Notes:• Although a compressor is provided with only two hexagonal bolts, it is standard.• The tightening torque of the hexagonal bolts, used to mount the compressor, is 14.5ft.lbs (200kg/cm).• If oil has been drawn from the accumulator, repair the cut pipe through pinching and brazing.

<Vacuum-pumping>(Single outdoor unit system)• Before performing vacuum-pumping, fully open PMV1, 2 and 4. If they are closed, the heat exchangers of the

outdoor unit cannot be vacuum-pumped.• Connect a vacuum pump consecutively to the check joints placed in the liquid and discharge pipes and on

the high-pressure side of the suction pipe, and turn it on.• Operate the vacuum drying until the vacuum gauge indicates 1 mmHg.

<Method to fully open PMV manually>(1) Turn on the power switch of the outdoor unit.(2) With the Bits 1 and 2 of SW12 set to off, short-circuit the pins of CN30.(3) Disconnect the connectors of PMV1 and 2 from the I/F P.C. board.(4) With the Bits 1 and 2 of SW12 set to off and on, respectively, short-circuit the pins of CN30.(5) Disconnect the connector of PMV4 from the I/F P.C. board(6) Turn off the power switch of the outdoor unit.

<Refrigerant charging>• Inject the same amount of refrigerant as the recovered residual refrigerant via the charging port of the liquid-

side service valve.

– 221 –

12-3. Check Procedure to Search Cause of Compressor Oil Shortage

Are thereany miswiring or incorrect

connection of TK1, TK2, TK3, TK4 andTK5 sensor in the unit that has

replaced compressor?

Are the balance pipes ofall outdoor units connected to thesame refrigerant line fully open?

Are thecharacteristics of the TK1,

TK2, TK3, TK4 or TK5 sensors of theunit that has replaced compressor

correct?

(To next page)

No

No

No

Yes

Yes

Yes

With the compressor(s) disconnected,check the oil circuit in accordancewith the procedure described below.

Open the balance pipe valves fully.

Correct the miswiring or connection.TK1: CN531 TK2: CN532TK3: CN533 TK4: CN534TK5: CN535

Replace the faulty sensor..

– 222 –

<MMY-MAP072∗, MAP096∗ and MAP120∗>Check items and procedures to follow when checking oil circuit with compressor(s) disconnected

Check item Location Procedure

Leakage of outdoor PMVLeakage of check valve indischarge pipe convergentsection

A,BC,D

1) Pressure nitrogen from check joint of the liquid pipe under condition that PMV1, 2 and 4 are fully closed, confirm the pressure using high-pressure check joint. If pressure of the high-pressure check joint rises, leakage from any of PMV1, 2, 4 (A, B) , check valve (D) and discharge check valve (C) is considered. Therefore replace all PMV1, 2, 4 (A, B), check valve (D), discharge check valve (C).2) If pressure did not rise, open PMV1, 2 fully and then confirm pressure of the high-pressure check joint. When pressure was up, open fully PMV4 only and confirm pressure of the high-pressure check joint again.3) When pressure was up, there is leakage from check valve (D) and discharge check valve (C). Therefore replace them. If pressure did not rise, there is leakage from discharge check valve. Therefore replace them.

Leakage of check valve indischarge pipe E 4) With pressure applied to the check joint of with nitrogen, if gas escapes from the discharge pipe section of the

disconnected compressor, there is a leak from the check valve of discharge pipe (E). Replace the part.

Leakage of check valve inoil equalization circuit F

5) With pressure applied to the check joint of with nitrogen, if gas escapes from the oil equalization pipe section of the disconnected compressor, there is a leak from the oil equalization pipe check valve (F). Replace the part.

Leakage of SV3A valve G6) With pressure applied to the check joint of with nitrogen, manually open the SV3B valve. If gas escapes from the suction pipe section of the disconnected compressor, there is a leak from the SV3A valve. Replace the part.

Clogging of SV3E valveClogging of oil-return distributor I

8) With pressure applied to the check joint of with nitrogen, manually open the SV3E valve. If gas does not escape from the suction pipe section of the disconnected compressor, the SV3E valve or oil-return distributor is clogged. Replace the part.

Clogging of SV3D valveClogging of oil-return capillaryClogging of oil-return distributor

J9) With pressure applied to the check joint of with nitrogen, manually open the SV3D valve. If gas does not escape from the suction pipe section of the disconnected compressor, the SV3D valve, oil-return capillary or oil-return distributor is clogged. Replace the part.

Leakage of SV3B valve H 7) Then manually open the SV3A valve. If gas escapes from the suction pipe section of the disconnected compressor, there is a leak from the SV3B valve. Replace the part.

– 223 –

13. OUTDOOR UNIT PARTS REPLACEMENT METHODS

Cabinet

No. Part to be replaced Work procedure Remarks

1

For 096 type and 120 type, remove thescrews from the discharge cabinet.(M5 × 0.6” (15 mm), 4 pcs.)For 096 type and 120 type, remove thescrews from the left and right sides of thedischarge cabinet.

WARNING

Wear a pair of gloves.Otherwise, you will risk an injury involvinga replacement part or some other object.

1. Detachment1)Stop the air conditioner operation, and turn off the

circuit breaker.2) Remove the screws for the discharge cabnet.

(M5 × 0.4” (10 mm), 4 pcs.)

In the case of a 096 type and 120 type:M5 × 0.4” (10 mm), 5 pcs. each

3)Remove the screws for the lower cabinet.Front and rear: (M5 × 0.4” (10 mm), 7 pcs. for frontand 6 pcs. for rear)

4)Remove the screws for the service panel.(M5 × 0.4” (10 mm), 2 pcs.)

5)Remove the screws for the suction cabinet.Front and rear: (M5 × 0.4” (10 mm), 4 pcs. each)

6)Remove the protective plate (back).Remove the upper hook from the middel partitionplate, and then remove the lower hook from thecenter hole of the bottom plate.

7)Remove the screws for the discharge cabinet sidecabinet.Left and right: (M5 × 0.4” (10 mm), 6 pcs. each)

Discharge cabinet Screws (4 corners)

Screws (4 corners)

5) Suction cabinet (front and rear)

4) Service panel

3) Lower cabinet (front and rear)

7) Side cabinet(left and right)

Discharge cabinetside cover

6) Protective plate (back)

6) Protective plate (back) Remove the upper hook

6) Remove the lowerhook of the protectiveplate (back)

– 224 –

Cabinet(continued)


1 8)Remove the hook of the protective plate (side) fromthe hole of the middle partition plate.(2 locations)

8) Protective plate (side)

8) Remove the hook of the protective plate (side) from the hole of the middle partition plate (2 locations)

Hook

Service panel

2. AttachmentCarry out installation by following the detachmentprocedure in reverse (10) → 1)).Be careful of the hooks provided on the suction cabinet,service panel and lower cabinet.

– 225 –

Propeller fanFan motor


2 WARNING



circuit breaker.2) Remove the screws for the discharge cabinet.

(M5 × 0.4” (10 mm), 4 pcs.)3)Remove the heat exchanger partition plate (upper).

(M5 × 0.4” (10 mm), 2 pcs.)* With a 096 type, 120 type, the fan motor can be

replaced without removing the discharge cabinet sidecovers.

4)Remove the flange nut securing the fan motor andpropeller fan.(To loosen the nut, turn it clockwise.)

5)Remove the square washer.6)Remove the propeller fan.

CAUTION

Lift it straight up.Do not forcibly pull it, or it may get stuck.

7)Disconnect the faston connectors for the fan motorleads (3 pieces) from the Fan IPDU, and pull theleads up and out.

8) Remove the fan motor.(M6 × 0.8” (20 mm), 4 pcs.)

Discharge cabinet side cover

4) Flange nut

6)

5) Square washer

2) Screws (4 corners)

3) Heat exchanger partition plate (upper)

7)

8) Screw (4 locations)

Disconnect faston connectors and pull fan motor leads up and out.

Fan motor lead travel route

Close-up view of faston connectors

Fan IPDU

– 226 –

Propeller fanFan motor(Continude)


2 2. CAUTION for replacement or attachment1) Insert the propeller fan while aligning the D-cut

surface of the fan motor shaft with the arrow mark( ) on the fan.(If the propeller fan is tightly mounted on the shaftwithout securing alignment between the D-cutsurface and the arrow mark ( ), it may cause thefan to melt and fall off due to friction heat.)

2) Be sure to put the square washer in place.(Otherwise, unusual noises and vibrations mayresult.)

3)Tighten the flange nut at a torque of 11.1 ft•lbs(15 N•m).(To tighten the flange nut, turn it counterclockwise.)

4)Remove the clamp filter from the fan motor withtrouble, then attach the clamp filter to the substitutionin the same way as before replacement. (Wind thefan motor lead once around the clamp filter.)

D-cut surface of fan motor shaft

Arrow mark ( ) of fanTo be aligned with D-cut surface

4) Clamp filter

– 227 –

Heat exchanger


3 WARNING


Before the work, be sure to recover the refrigerant ofoutdoor unit into cylinders or another unit connected tothe same system.(Refer to the chapter on “refrigerant recovery methods tobe used during compressor replacement”.)

1. Detachment (Right-Side Heat Exchanger asExample)1) Remove the cabinet.2) Remove the motor base.

(M5 × 0.4” (10 mm), 6 pcs.)(Detach the fan motor leads as well.)

For 096 type and 120 type unit, remove thedischarge cabinet anchor plates.Left and right: (M5 × 0.4” (10 mm), 2 pcs.) – 2

3) Remove the upper partition plate.(M5 × 0.4” (10 mm), 12 pcs.)

4) Remove the screws for the support post.(M5 × 0.4” (10 mm), 3 pcs.) – 2 sets

5) Remove the screws for the Heat excanger partition plate.(M4 × 0.4” (10 mm), 2 pcs.)

6) Remove the brazed joints of the piping connected(4 locations).

7) Remove the screws for the heat exchanger partitionplate (upper) and pull the heat exchanger out.(M5 × 0.4” (10 mm), 2 pcs.)

4) Support post

3) Discharge cabinet anchor plate

2) Motor base

7) Rear

Heat exchanger(right)

Heat exchanger(left)

5) Heat exchanger partition plate (upper)

Supportpost

Pull heat exchanger out of rear end.(Left-side heat exchanger is pulled out offront end.)

6) Brazed joints (1 locations on header side)

6) Brazed joints (2 locations on piping connected side)

6) Brazed joints (1 locations on distributor side)

– 228 –

Inverter assembly


4 WARNING



circuit breaker.2) Remove the inverter cover.

(M4 × 0.4” (10 mm), 2 pcs.)3)Remove the wiring.

(e.g. the power supply wire, compressor leads, coils,sensors and heaters)

4)Steps only applicable to a 096 type, 120 type• Remove the reactor lead cover.

(M4 × 0.4” (10 mm), 1 pc.)• Remove the screws securing the box.

(M4 × 0.4” (10 mm), 1 pc.)• Detach the reactor leads.

(6 terminal block bolts and 2 faston connectors)

In the case of a 096 type, 120 type: M5 × 0.4”(10 mm), 1 pc. for top and 2 pcs for bottom

5)Remove the wire guard.(M4 × 0.4” (10 mm), 1 pc.)

6)Remove the screws securing the box.(M5 × 0.4” (10 mm), 1 pc. each for top and bottom)

7)Disengage the hook by gently pressing down thelocking lever with your finger.(The lower part of the box moves forward.)

8)Hold the top board with both hands to disengage thetop hook. 6) Screw

Pull it forward

4) Reactor terminal block

Removable design

7) Locking lever

4) Connector for fan reactor

4) Reactor lead cover

6) Screws with arrow mark (2 locations)

8)

4) Screw (with arrow mark)

5) Screw

5) Wire guard

4) Screw (with arrow mark)

– 229 –

Inverter assembly(continued)


4 2. AttachmentCarry out installation by following the dismantlingprocedure in reverse (8) → 1)).Before pushing the lower part in, pull the reactor leadsout.Take care so that the wiring does not get caught in theway.Reconnect all the wiring.

Before pushing lower part in, pull leads out through hole.

When pushing lower part in, be sure to keep wiring out of way.

– 230 –

Assembling inverter -Replacing boards /electric components(208/230 V FT9UL)


5-1 WARNING


1. Interface board1)Stop the air conditioner operation, and turn off the

circuit breaker.2)Remove the wires and then the board from the card

edge spacer of the corner.

2) A3-IPDU board(for driving comp 3)

2) A3-IPDU board (for driving comp 2)

2) A3-IPDU board(for driving comp 1)

1) Noise filtering board

1) I/F board (Control board)

3) IPDU board for fan

2) M3 screw

2) M4 screw

2) Screw

Adjust to the cutout

5) Sub heat sink

Adjust to the cutout

2. A3-Compressor IPDU board1)Stop the air conditioner operation, and turn off the

circuit breaker.2)Remove the screws that fix the heat sink

(radiation plate). *1(M4 x 0.6” (15 mm), 2 pcs, M3 x 0.8” (20 mm), 3pcs.)

3)Remove the comp lead (U, V, W). *24)Remove the board from the card edge spacer of the

corner.

*1Screw tightening torque for heat sink fixing board M4screw tightening torque(0.7 ± 0.07 ft•lbs (0.98 ±0.1 N•m))M3 screw tightening torque(0.4 ± 0.07 ft•lbs (0.55 ±0.1 N•m))

*2Comp lead (U, V, W) tightening torqueM4 screw tightening torque(0.9 ± 0.07 ft•lbs (1.2 ±0.1 N•m))

3. Fan IPDU board1)Stop the air conditioner operation, and turn off the

circuit breaker.2)Remove the screws that fix the heat sink

(radiation plate). *(M3 x 0.8” (20 mm), 5 pcs.)

3)Remove the wires.4)Remove the board from the card edge spacer of the

corner.

* Screw tightening torque for heat sink fixing boardM3 screw tightening torque(0.4 ± 0.07 ft•lbs (0.55 ±0.1 N•m))

* Notes on attaching.5)Adjust the sub heat sink to the cutout.

(If the sub heat sink is not aligned properly, radiationmay be less efficient and a malfunction may occur.)

– 231 –

Reactor assembly(208/230 V FT9UL)


6-1

WARNING


1. Detachment1)Stop the operation, and turn off the circuit breaker.2)Remove the inverter assembly.

(See the inverter assembly dismantling methodunder item 5.)

3)For 096 and 120 only, remove the separatelymounted reactor box.To remove the reactor box, remove the screws atthe top and bottom (M5 × 0.4” (10 mm)) andunlock the box by sliding the stopper to the right.* Before pulling the reactor box, tilt it back to free

the bottom.

For 096 and 120 only, remove the separatelymounted anchor plate.(M4 × 0.2” (6 mm), 4 pcs.)

4)Remove the reactor box located at the back of theinverter assembly.(M4 × 0.2” (6 mm), 4 pcs.)

* The screws can be removed from the front.

5)Remove and replace the reactor.(M4 × 0.2” (6 mm), 1 pc.)

• 096 type, 120 type

• 072 type

3) Screw

3)

Fixing claw (slide stopper to right)

Fixing claw (slide stopper to right)

Screw

4) Screws (2 locations)




– 232 –

Inverter assembly -Replacing circuitboards andelectricalcomponents(460 V FT6UL)


5-2

WARNING

Wear gloves.Failure to wear gloves creates the riskof personal injury by part replacementand other objects.

1. Interface board1)Stop operation of the outdoor unit and turn

off the breaker.2) Detach wires and then remove the board

from the card edge spacer in the corner.

2. Transformer relay board1)Stop operation of the outdoor unit and turn

off the breaker.2) Detach wires and then remove the board

from the card edge spacer in the corner.

3. A3-Compressor IPDU board1)Stop operation of the outdoor unit and turn

off the breaker.2)Remove the screws that secure the heat

sink.(heat sink)(M4 x 0.6” (15 mm), 2 pcs, M3 x 0.8” (20 mm),2 pcs)*

3)Remove the screws that secure the upperright corner and lower right corner of theboard.(M3 x 0.4” (10 mm), 2 pcs)*

4)Remove the compressor leads (U, V, W).5)Remove the four double-lock spacers

located at the edges of the board and withinthe board.

* Tightening torque of board fixing heat sinkscrewsTightening torque of M4 screws(0.7± 0.07 ft•lbs (0.98±0.1 N•m))Tightening torque of M3 screws(0.4± 0.07 ft•lbs (0.55±0.1 N•m))

4. Fan IPDU board1)Stop operation of the outdoor unit and turn

off the breaker.2)Remove the screws that secure the heat

sink.(heat sink)(M3 x 0.8” (20 mm), 5 pcs)*

3)Detach wires.4) Remove the board from the card edge

spacer in the corner.

* Tightening torque of board fixing heat sinkscrewsTightening torque of M3 screws(0.4± 0.07 ft•lbs (0.55±0.1 N•m))

* Installation5)Adjust the position of the sub heat sink with

the cutout.(An improperly aligned sub heat sink caninterfere with proper device function due toreduced thermal efficiency.)

Transformer relay board Interface board (control board)

FAN IPDU board Noise filter board

A3-Compressor IPDU board(For Compressor 1 drive)

A3-Compressor IPDU board(For Compressor 3 board)

A3-Compressor IPDU board(For Compressor 2 board)

Transformer relay board

Tightening locations for board screws

3) M3 screw

2) M3 screw

5) Double-lock spacers

3) M3 screw

2) M4 screw

Compressor IPDU boar

Align with cutout

5) Sub heat sink

Align with cutout

2) M3 screw

Fan IPDU board

– 233 –

Reactor assembly(460V FT6UL)


6-2 WARNING

Wear gloves.Failure to wear gloves creates the risk ofpersonal injury by part replacement andother objects.

1)Stop operation and turn off the breaker switch.2)Remove the inverter assembly.

(Refer to “4. Removing the inverter assembly”.)

3)For 096 and 120 only, remove the separatereactor box.Remove the upper and lower screws (M5 x 0.4”(10 mm)), slide the claw to the right, and thenremove the reactor box.* Swing the reactor box upwards, slip it

downwards, and then pull it out.

For 096 and 120, remove the separate anchor plate.(M4 × 0.2” (6 mm)6, 4 pcs)

4)Remove the reactor box, which is behind the inverterassembly.(M4 × 0.2” (6 mm), 4 pcs)* Remove the screws starting from the front.

5)Remove the reactor and replace it.(M4 × 0.2” (6 mm)6, 1 pc)

• 096type, 120type

• 072 type

3) Screw Claw (Slide to the right.)

3) Screw

Claw (Slide to the right.)





– 234 –

Rear

Liquid tank

SV3B SV3A

SV6

SV14

SV3C

SV3E

SV11

Oil separator

SV5

PD sensor

PS sensor

SV42

SV2

SV3D

SV41Accumulator

Front

Rear

Front

SV14 SV3F SV3E SV3D

SV11

SV11

SV3B SV3A

SV2

SV5

SV6

SV3C

Liquid tank

Accumulator

SV41 SV42 SV43 PS sensorPD sensor

Oil separator

2-way valve coilsPressure sensorslocations072 type


7

096 type120 type

– 235 –

TD1 sensor (yellow)

TD2 sensor (red)

TE2 sensor (red)

Accumulator

Compressor 1

Front side

Rear side

Compressor 2

TS1 sensor (gray) TS2 sensor (black) TK1 sensor (black)- One closer to you

TK2 sensor (blue)- One farther from you

TK5 sensor (green)

Accumulator

Liquid tank

TL sensor (white)

Oil separator

TK4 sensor (white)

Temperaturesensors- locations andidentification colors072 type


8 Product Front View

Product Rear View

– 236 –

TD1 sensor (yellow)

TD2 sensor (red) TD3 sensor (black)

TE2 sensor (red)

Accumulator

Compressor 1 Compressor 2 Compressor 3

Front side

TK1 sensor (black)- One closer to you

TK2 sensor (blue)- One farther from you

TK3 sensor (yellow)

TK4 sensor (white)

TS2 sensor (black)

AccumulatorTL sensor (white) TK5 sensor (green)

Liquid tank

Oil separator

TS1 sensor (gray)

Rear side

Temperaturesensors- locations andidentification colors(continued)096 type120 type


8 Product Front View

Product Rear View

– 237 –

Pipe fixing rubber- detachment/attachment072 type


9 This product employs pipe fixing rubber (eyeglass type), combined with a SUS band, to restrain pipessubject to vibration to improve reliability.<Use of SUS band - total 5 locations>

This product employs pipe fixing rubber (eyeglass type), combined with a SUS band, to restrain pipessubject to vibration to improve reliability.<Use of SUS band - total 10 locations>

096 type120 type

SV2 valve ⇔ Discharge pipeØ6.35 ⇔ Ø15.88

SV42 valve ⇔ Suction pipeØ8.0 ⇔ Ø19.05


Rear side

Front side

Oil header ⇔ Liquid pipeØ25.4 ⇔ Ø12.7

Valve circuit ⇔ Capillary tubeØ6.35 ⇔ Ø12.7

Suction pipe ⇔ DistributorØ19.05 ⇔ Ø22.22

Rear side

Front side

Suction pipe ⇔ SV3F valveØ19.05 ⇔ Ø9.52

Suction pipe ⇔ Discharge pipe Ø28.58 ⇔ Ø12.7

Suction pipe ⇔ DistributorØ22.22 ⇔ Ø22.22




Liquid pipe ⇔ Balance pipeØ15.88 ⇔ Ø9.52

SV2 valve ⇔ Discharge pipeØ6.35 ⇔ Ø19.05

Oil header ⇔ Liquid pipeØ25.4<=> Ø12.7

SV3C valve <=> Discharge pipeØ6.35 ⇔ Ø15.88

– 238 –

Pipe fixing rubber- detachment/attachment(common)


9 WARNING


1. Detachment1) Hold the pipe fixing rubber in such a manner that

your fingers and thumb are in contact with the twolongitudinal ends of the piece, and squeeze it a littleto create a small gap between the rubber and theSUS band wrapped around it.

2) Push the hook end of the SUS band down to

disengage the hook from the square hole.2. Attachment

1) The pipe fixing rubbers use a two-segment design toaccommodate a wide range of pipe combinations.When installing them, therefore, it is recommendedto first split them up into segments and pair thesegments up only after placing them on pipes ofmatching sizes separately. In this regard, make surethat the mating tooth and slit of pairing segmentsface each other.

2) When placing an SUS band around pipe fixingrubber, make sure that the hook end of the SUSband coincides with the slit side of the rubber.(The band can be placed the other way around, butonly at the expense of work efficiency.)

3) Place the SUS band tightly around the pipe fixingrubber so that there is no gap between them.Take utmost care not to create a gap over the curvedsection of the rubber where the hairpin side of theband is located.

4) While holding the rubber, push down the base of thehook lightly against the rubber, and engage the hookwith the square hole by squeezing the curved sectionof the rubber where the square hole side of the bandis located (see the arrow).(If the hook does not engage with the square hole,recheck whether there is a gap between the bandand rubber.

Squeeze rubber to create small gap.

1)

2)

Push band down in arrow direction.

Slide it along.

Place two segments of damper on pipes ofmatching sizes separately, making sure tooth andslit of pairing segments face each other.

1)

2)

3)

4)

Make sure that hook end of SUS bandcoincides with slit side of rubber.

Push square hole end of tape inarrow direction by squeezing rubber.

Push square hole end of tape inarrow direction by squeezing rubber.

Press down hook side oftape against rubber.

Align tooth and slit and push twosegments towards each other.

– 239 –

4-way valve- detachment/attachment072 type


10 WARNING

Wear a pair of gloves.Otherwise, you will risk an injury involving areplacement part or some other object.

Before starting the work, be sure to recover the refrigerant ofoutdoor unit by removing it with a refrigerant recovery device.

1. Detachment1) Remove the lower cabinet (front side).2) Remove the inverter box in accordance with the

dismantling instructions.3) Disconnect the 4-way valve coil and PMV coils (3

pieces) and get all wiring located near the 4-way valveout of the way.

4) Remove brazed points (3 locations) for the PMVassembly, which is placed in front of the 4-way valve.* Provide adequate cover for the PMV to protect it

from overheating.5) Take off screws (2 pcs) which are fixing the valve of the

discharge gas valve assembly at the front side of 4-wayvalve and also remove the brazed section (1 point).

6) For upper pipes of 4-way valve (2 pcs at front side), use asaw, or so on and cut at lower side of the brazed sectionat upper brazed section of 4-way valve.

7) Remove the brazed section (1 point) of the pipe at leftside of 4-way valve.

8) Remove the brazed section (1 point) of the lower pipeof 4-way valve.

9) Take off the pipe remained when pipe was cut off initem 6).

10) Move the bypass assembly removed from the old 4-way valve to a new 4-way valve.

11) Mount a new 4-way valve.* Be sure to cure sufficiently so that overheat of 4-way

valve is avoided.In this time, insert the connecting pipes surely into4-way valve; otherwise wax choking or leakage iscaused.

12) Mount the discharge gas assembly removed in item 5).* Cure sufficiently so that gas valve is not heated.

13) Mount PMV assembly removed in item 4).* Cure sufficiently so that PMV is not heated.

14) Return the coil removed in item 3) to the originalposition and then return various wiring to originalposition.

* When mounting PMV, refer to the right figure so thatthere is no miss-mounting.

15) According to section, How to mount inverter box.16) Attach the lower cabinet.

PMV

4) Brazed point

4) Brazed point

5) Screw

5) Brazed point

7) Brazed point

6) Cutting line (2 pieces at front side)

4-way valve

5) Brazed point10) Bypass assembly

4-way valve for pilot

Front side14) PMV4

PMV assembly

Cut off the upper pipe of 4-way valve at 2 positions.Remove one pipe at the brazed section.

Remove the brazed sectionsat 2 positions at the left sideof strainer.

Remove a brazed section at rear side of PMV assembly.

4-way valve

Remove a brazed section of pipe at the lower side of 4-way valve

5) Discharge gas assembly

New 4-way valve

– 240 –

4-way valve- detachment/attachment(continued)096 type120 type


10PMV

4) Brazed point

4) Brazed point

5) Screw

5) Brazed point

7) Brazed point

6) Cutting line (2 pieces at front side) 4-way valve

Insert a torch

5) Brazed point

10) Bypass assembly

10) Bypass assembly

4-way valve for pilot

Front side

14) PMV4

PMV assembly

Cut off the upper pipe of 4-way valve at 2 positions.Remove one pipe at the brazed section.

Remove the brazed sections at 2 positions at the left side of strainer.

Remove a brazed section at rear side of PMV assembly.

4-way valve

Remove a brazed section of pipe at the lower side of 4-way valve

5) Discharge gas assembly

New 4-wayvalve

WARNING


Before starting the work, be sure to recover the refrigerant ofoutdoor unit by removing it with a refrigerant recovery device.

1. Detachment1) Remove the lower cabinet (front side).2) Remove the inverter box in accordance with the

dismantling instructions.3) Disconnect the 4-way valve coil and PMV coils (3

pieces) and get all wiring located near the 4-way valveout of the way.

4) Remove brazed points (2 locations) for the PMVassembly, which is placed in front of the 4-way valve.* Provide adequate cover for the PMV proper to

protect it from overheating.5) Take off screws (2 pcs) which are fixing the valve of the

discharge gas valve assembly at the front side of 4-wayvalve and also remove the brazed section (1 point).

6) For upper pipes of 4-way valve (2 pcs at front side),use a saw, or so on and cut at lower side of the brazedsection at upper brazed section of 4-way valve.

7) Remove brazed section (1 point) of the pipe of bypasscircuit which arranged at left side of 4-way valve. Inserta torch into the right side of the front side of theoutdoor unit and then carry out welding work.

8) Remove the brazed section (1 point) of the lower pipeof 4-way valve.

9) Take off the pipe remained when pipe was cut off initem 6).

10) Move the bypass assembly removed from the old 4-way valve to a new 4-way valve.

11) Mount a new 4-way valve.* Be sure to cure sufficiently so that overheat of 4-way

valve is avoided.In this time, insert the connecting pipes surely into 4-way valve; otherwise wax choking or leakage is caused.

12) Mount the discharge gas assembly removed in item 5).* Cure sufficiently so that gas valve is not heated.

13) Mount PMV assembly removed in item 4).* Cure sufficiently so that PMV is not heated.

14) Return the coil removed in item 3) to the originalposition and then return various wiring to originalposition.

* When mounting PMV, refer to the right figure so thatthere is no miss-mounting.

15) According to section, How to mount inverter box.16) Attach the lower cabinet.

– 241 –

Transformer(460V FT6UL)


11Screw tightening locations for housing

2) M5 screws

Anchor plate

SHRM-i back

Enlarged view

3) M4 screws

4) Screw tightening locations for front cover

Screw tightening locations for front cover

6) M4 screws

6) M4 screws

Front cover

9) M4 screws

Left side

Shield

8) Holder

9) M4 screw

Right side

7) Faston terminal

7) Round terminal

WARNING

• Wear gloves.Failure to wear gloves creates the risk ofpersonal injury by part replacement andother objects.

• Do not attempt to modify the transformer.

1. Disassembly procedure1)Stop operation of the outdoor unit and turn off the

breaker.2)Remove the anchor plate screws.

(M5 x 0.4” (10mm), 4pcs)3)Remove the screws that secure the base assembly

and transformer housing.(M4 x 0.3” (8mm), 2pcs)

4)Shift the transformer housing slightly and thenremove the lead bundle band.

5)Lift up the transformer housing and move it to a flatsurface.

6)Remove the housing front cover screws.(M4 x 0.2” (6mm), 6pcs)

7)Detach both the Faston terminals and roundterminals.(Caution: When unplugging a Faston terminal, graspthe wire at the base of the terminal.)

8)Remove the leads from the holder.9)Remove the shield screws and then remove the shield.

(M4 x 0.3” (8mm), 3pcs)

– 242 –

Transformer(460V FT6UL)


11

Screw tightening locations for transformer housing back

Right side Left side

Transformer housing

10) ScrewsBack

Screw tightening locations for transformer re-assembly

Two screws each, front and back

Base plate

Holder

4.7”

2.6”

Provide 2.6” betweenbottom and lead bend.

10) Remove the transformer housing back screws andthen remove the housing.(M4 x 0.2” (6mm), 4 pcs)

11) Remove the screws that secure the base plate andtransformer, and then replace the transformer.(M6 x 0.47” (12mm), 4 pcs)

2. Re-assembly procedurePerform the disassembly procedure in reverse to re-assemble.(11)→1)).

Note:1)When performing wiring inside the transformer

housing, make sure that 4.7” (120 mm) of the blacktube covered part of the leads extend from theholder.

2)When bundling the leads, make sure that thedistance between the band and the bend is 2.6” (65mm), as shown in the figure.

– 243 –

14. P.C. BOARD EXCHANGE PROCEDURESReplacement of outdoor P.C. board

14-1.List of service P.C. boardsParts code Description Applicable model P.C. board type code Product code4316V519 Interface P.C. board

MMY-MAP0724FT9ULMMY-MAP0964FT9ULMMY-MAP1204FT9UL

MCC-1606 ASM-PCB (I/F)

4316V520 Inverter P.C. board for fan MCC-1610 ASM-PCB (FAN IPDU)4316V453 Noise filter P.C. board MCC-1608-A,B ASM-PCB (N/F)

4316V451 Inverter P.C. board forcompressor MCC-1595 ASM-PCB (A3 IPDU)

Parts code Description Applicable model P.C. board type code Product code4316V519 Interface P.C. board


MCC-1606 ASM-PCB (I/F)

4316V520 Inverter P.C. board for fan MCC-1610 ASM-PCB (FAN IPDU)4316V497 Noise filter P.C. board MCC-1625-A,B,C ASM-PCB (N/F)

4316V489 Inverter P.C. board forcompressor MCC-1596 ASM-PCB (A3 IPDU)

14-2.Configuration of inverter assembly

Inverter P.C. board for fan[FAN IPDU]

(MCC-1610)

Interface P.C. board [Outdoor control P.C. board] (MCC-1606)

Power supply terminal block

Communicationterminal block Relay terminal block

for power supply

Inverter P.C. board for Compressor 2 [A3 IPDU] (MCC-1595)



(MCC-1610)






Communicationterminal block

Relay terminal block for power supply

Noise Filter P.C. board (MCC-1608)


MMY-MAP0724FT9UL MMY-MAP0964FT9UL MMY-MAP1204FT9UL

Relay terminal block for reactor

Relay terminal blockfor power supply

Relay connector for central control


– 244 –



Thermistor


(MCC-1610)



Inverter P.C. board for Compressor 2 [A3 IPDU] (MCC-1596

Inverter P.C. board for Compressor 1 [A3 IPDU] (MCC-1596


(MCC-1610)







Noise Filter P.C. board (MCC-1625

MMY-MAP0724FT6UL MMY-MAP0964FT6UL MMY-MAP1204FT6UL

Relay terminal blockfor reactor

Magnet Contactor



Thermistor

Magnet Contactor

– 245 –

14-3. Interface board replacement procedure

Parts code Description Applicable model P.C. board type code Product code

4316V519 Interface P.C. Board

MMY-MAP0724FT9ULMMY-MAP0964FT9ULMMY-MAP1204FT9ULMMY-MAP0724FT6ULMMY-MAP0964FT6ULMMY-MAP1204FT6UL

MCC-1606 ASM-PCB(I/F)

Model name J12Yes—CutCut—CutCut

J11Yes—CutCut—CutCut

J10YesCutCutCutCutCutCut

J09Yes—

Cut——

Cut—

J22Yes———

CutCutCut

J25YesCutCutCutCutCutCut

Service P.C. BoardMMY-MAP0724FT9ULMMY-MAP0964FT9ULMMY-MAP1204FT9ULMMY-MAP0724FT6ULMMY-MAP0964FT6ULMMY-MAP1204FT6UL

Jumpers

Dip Switches

SW06 SW07

SW11 SW12

SW17

SW13 SW14

SW16

SW10SW09

Interface P.C.Board(431-6V-519)

1

1

1

1 1

1

Push this part to thedirection of the arrow.And remove the PCB.

PCB Mounts 1

This Interface board is commonly installed in different models before shipment. When the board assembly is tobe replaced, check the displayed inspection contents below and replace the board in accordance with themodel, following the below procedure.

Replacement steps:(1) Turn off the power supply of the outdoor unit.(2) Remove all of the connectors and fast-on terminals connected to the interface board. (Remove the

connectors and fast-on terminals by pulling the connector body. Do not pull the wire).(3) Remove the interface board from the six PCB mounts (1).(4) Cut the jumper wires of the service board, as instructed in the table below.

The jumper setting differs from original supplied PCB, therefore be sure to configure the Jumpers as in thetable below.If the model is not specified, inspection code “L10” is displayed and the equipment will not operate.

(5) Set the dip switch settings of the service board to match the switch settings of the PCB being replaced.(6) Install the service board to the outdoor control unit (Confirm that it is securely fixed to the PCB Mounts).(7) Connect the connectors and fast-on terminals (Confirm that they are correctly and securely inserted).(8) If a component on the board is bent during board replacement, adjust it manually ensuring that it is not

short or contact other parts.(9) Install the cover, then turn on the power supply. Check the operation.

– 246 –

14-4. Comp-IPDU P.C. Board (MCC-1595) replacement procedure



4316V451 Inverter P.C. Boardfor compressor MCC-1595 ASM-PCB(A3 IPDU)

This board is commonly installed in different models before shipment. Set the dip switch (SW800) setting of theservice board to the switch setting before replacement.

Replacement steps:(1) Turn off the power supply of the outdoor unit and allow at least 1 minute for the capacitor to discharge.

Confirm that the light of the LED (D800) fades away.(2) Remove all the connectors and 8 screws of the terminals (1) connected to the Compressor IPDU. (Remove

the connectors by pulling the connector body. Do not pull the wire. Screws are to be re-used afterprocedure).

(3) Remove all the 5 screws(2) which secures the Compressor IPDU to the Heat sink.(These screws are to be re-used after procedure.)

(4) Remove the Compressor IPDU from the four spacers (3) by pinching the top of the spacers by round-nosepliers.

Compressor IPDU(MCC-1595)

3

3

2 screw

1 White Wire

1

3

Compressor IPDU

Pinch this part byround-nose pliers forremoving the PCB.

(4 are in packed in thisservice assembly)

1 Black Wire

2

1

1 Red wire

1 White Wire

1 Black Wire

2 Screw

Spacer 3SW800

Ex. MMY-MAP0724FT9UL

D800

1 Red wire

Insulation sheet (flesh color)Spread it on the heat sink

Reuse the insulation sheet.∗Using a little heat transfer paste on the heat sinkwill make easier to install, because the insulationsheet will stick to the heat sink.

Remove thePCB

(5) Confirm that no dirt or damage is on the insulation sheet (flesh color) on the heat sink. As it can reduce theheat transfer efficiency, and can cause a breakdown. If the insulation sheet comes off the heat sink, re-apply the insulation sheet as shown in the following figure.

– 247 –

(6) Set the dip switch (SW800) setting of the service board to match the switch setting from the original PCB.Set the dip switch (SW800) depending on the position of the IPDU within the electrical box, as shown inthe following diagram.

Dip Switch(SW800)

Ex. MMY-MAP0724FT9UL Ex. MMY-MAP1204FT9UL

Compressor IPDU (Left Side)

For Compressor: 1

Dip switch (SW800) setting :

Compressor IPDU (Right Side)

For Compressor: 2


ON

1 2 3 4

ON OFF OFF OFF


For Compressor: 1


Compressor IPDU (Middle)

For Compressor: 2



For Compressor: 3


ON

1 2 3 4

OFF ON OFF OFF

ON

1 2 3 4

ON OFF OFF OFF

ON

1 2 3 4

OFF ON OFF OFF

ON

1 2 3 4

ON ON OFF OFF

Q201

DB03

DB02

DB01

(7) Align the insulation sheet with the screw holes on the insulation sheet and the mounting holes on the PCBwith the PCB mounts. And fix the Compressor IPDU to the outdoor control unit by the spacers (3).

(8) Screw the Compressor IPDU to the heat sink by the 5 screws that wereremoved in step (3).If the screws are l loose, the effect component will generate heat, andcause it to breakdown. Do not use an electric driver or an air driver. Asit can cause component damage. The torque of the screws for DB01,DB02 and DB03 is “0.55N•m (0.41ft•lbs)” and it for Q201 is “1.2N•m(0.89ft•lbs)”.

(9) Re-connect the connectors and terminals(1).Be sure that all the connectors and the terminals are connectedcorrectly and securely inserted. If the screws are loose, the effectcomponent will generate heat, and cause it to breakdown.Do not use an electric driver or an air driver. As it can cause componentdamage.The torque of screws for the terminals is “1.2N•m (0.89ft•lbs)”.

(10) If the components on the PCB were bent during this procedure,straighten them so they do not touch other parts.

(11) Install the cover, then turn on the supply.Check the operation.

– 248 –

14-5. Comp-IPDU P.C. Board (MCC-1596) replacement procedure

Parts code Description Applicable model P.C. board type code Product codeMMY-MAP0724FT6ULMMY-MAP0964FT6ULMMY-MAP1204FT6UL

4316V489 Inverter P.C. board forCompressor

ASM-PCB(A3I PDU)MCC-1596

Ex. MMY-MAP0724FT6UL

Remove thePCB

Pinch this part byround-nose pliersfor removing the PCB.

Cut this part by nippersfor removing the PCB.

(B) DB01 (–)

4 Spacer

4 Spacer

3 Fixation screw

1 White Wire

1 Red Wire

2 screw11

1 Red Wire

1 White Wire1 Black Wire

2 screw3 Fixation screw

4 Spacer

SW800

4 Spacer

4 Spacer

1 Black Wire4 Spacer

or

Cut

(4 Spacer are in packedin this service assembly)

Compressor IPDU(MCC-1596)

Heat sink

Compressor IPDU

(A) DB01 (+)

This board is commonly installed in different models before shipment. Set the dip switch (SW800) setting of theservice board to the switch setting before replacement.

Replacement Steps:(1) Turn off the power supply of the outdoor unit and allow at least 3 minute for the capacitor to discharge.

Check the voltage between (A) and (B) to see it is surely discharged before replacement.(2) Remove all the connectors and fast-on terminals (1) connected to the Compressor IPDU.

(Remove the connectors and fast-on terminals by pulling the connector body. Do not pull the wire.).(3) Remove all the 4 screws (2) which secures the Compressor IPDU to the Heat sink.

(These screws are to be re-used after procedure.)(4) Remove all the 2 screws (3) which secures the Compressor IPDU to the Frame.(5) Remove the Compressor IPDU from the 4 spacers (4) by pinching the top of the spacers by round-nose

pliers or cutting the top of the spacers by nippers.

(6) Confirm that no dirt or damage is on the heat sink. As it canreduce the heat transfer efficiency, and cause a breakdown.

– 249 –

(7) Set the dip switch (SW800) setting of the service board to match the switch setting from the original PCB.Set the dip switch (SW800) depending on the position of the IPDU within the electrical box, as shown in thefollowing diagram.

Dip Switch (SW800)

MMY-MAP0724FT6ULMMY-MAP0964FT6UL MMY-MAP1204FT6UL

Q201

DB01

Fixationscrew

Fixationscrew


For Compressor: 1



For Compressor: 2


ON

1 2 3 4

ON OFF OFF OFF


For Compressor: 1


Compressor IPDU (Middle)

For Compressor: 2



For Compressor: 3


ON

1 2 3 4

OFF ON OFF OFF

ON

1 2 3 4

ON OFF OFF OFF

ON

1 2 3 4

OFF ON OFF OFF

ON

1 2 3 4

ON ON OFF OFF

(8) Screw the Compressor IPDU to the heat sink by the 4 screwsthat were removed in step (3).If the screws are loose, the effect component will generateheat, and cause it to breakdown. Do not use an electric driveror an air driver.As it can cause component damage. The torque of thescrews for DB01 is “0.55N•m (0.41ft•lbs)” and it for Q201 is“1.2N•m (0.89ft•lbs)”.

(9) Re-connect the connectors and fast-on terminals (1).Be sure that all the connectors and the fast-on terminals areconnected correctly and securely inserted.

(10) If the components on the PCB were bent during thisprocedure, straighten them so they do not touch otherparts.

(11) Install the cover, then turn on the supply. Check theoperation.

– 250 –

14-6. Fan IPDU P.C. board (MCC-1610) replacement procedure


MMY-MAP0724FT9ULMMY-MAP0964FT9ULMMY-MAP1204FT9ULMMY-MAP0724FT6ULMMY-MAP0964FT6ULMMY-MAP1204FT6UL

4316V520 Inverter P.C. Board for fan MCC-1610 ASM-PCB(FAN IPDU)

Fast-on terminal 1BLACK lead wire

PCB Mounts 3

Screw 2

Fast-on terminal 1RED lead wire

Fast-on terminal 1WHITE lead wire

FAN IPDU(MCC-1610)

3

22

223

LED

(D640)

Push this part to thedirection of the arrow.And remove the PCB.

Remove the PCB

Sub Heat Sink

Heat Sink

IC701

DB510

Q590

DB509

Replacement steps:(1) Turn off the power supply of the outdoor unit and allow at least one minute for the capacitor to discharge.

Confirm that the light of the LED (D640) fades away.(2) Remove all the connectors and the fast-on terminals(1) connected to the FAN IPDU. (Remove the

connectors and fast-on terminals by pulling the connector body.Do not pull the wire).

(3) Remove all the five screws(2) which secures the FAN IPDU to the Heat sink.(These screws are to be re-used after procedure.)

(4) Remove the Fan IPDU from the three PCB Mounts (3).

(5) Confirm that no dirt or damage is on the sub heat sink. As it can reduce the heat transfer efficiency, andcause a breakdown.

(6) Align the PCB mount holes on the PCB with the PCB mounts, and fix the FAN IPDU to the outdoor controlunit by clipping the PCB into the PCB mounts (3).

(7) Screw the FAN IPDU to the heat sink by the five screws that were removed in step (3).If the screws are loose, the effected component will generate heat, and cause in to breakdown. Do not usean electric driver or an air driver, as it can cause component damage.The torque of 5 screws (IC701, DB509, DB510 and Q590) is “0.55N•m”.

(8) Re-connect the connectors and fast-on terminals(1). Be sure that all the connectors and the fast-onterminals are connected correctly and securely inserted.

(9) If the components on the PCB were bent during this procedure, straighten them so they do not to touchother parts.

(10) Install the cover, then turn on the supply. Check the operation.

– 251 –

14-7. Noise Filter P.C. Board (MCC-1608 A, B) Replacement Procedure

Ex.MMY-MAP0724FT9UL Noise Filter P.C. board (MCC-1608)

Noise Filter P.C. board(4316V453)

7 PCB Mount 7

7

7

5 Screw

5 Screw

8

8 Screw-on terminal

8

8

8

8

Noise Filter P.C. board (A)(MCC-1608)

Noise Filter P.C. board (B)(MCC-1608)

7

7

9 Line filter

Remove terminal block sub-assembly(1)

2 Screw Lead (black)

2Lead (white)

2Lead (red)

3 Screw

3 4 Power supply terminal block

33

6 6

6


4316V453 Noise filter P.C. boardMMY-MAP0724FT9ULMMY-MAP0964FT9ULMMY-MAP1204FT9UL

MCC-1608-A, B ASM-PCB (N/F)

<1. Preparation (model selection)>All P.C. boards of this type leave the factory with default settings that are common to all applicable models.When replacing a P.C. board assembly on site, follow the procedure described below.<2. Replacement steps>(1) Turn off the power to the outdoor unit.(2) Remove the terminal block sub-assembly (1).

Remove the screws (2) on the power supply terminal block (4) and the screws (3) securing the terminalblock subassembly (1).• The screws will be reused during the installation of the service P.C. board, so keep them in a safe place.

– 252 –

(3) Disconnect all the connectors and fast-on terminals used to connect wiring to the noise filter P.C. board.• The line filter (9) and its leads, both connected to the screw-on terminals (8) of the noise filter P.C. board

(A) will be removed in step 6.• Disconnect all the connectors and fast-on terminals.

(4) Remove the earthing screws (5), (6).• The removed earthing screws (5), (6) will be reused during the installation of the service P.C. board, so

keep them in a safe place.(5) Remove the noise filter P.C. board assembly by unlocking the four card edge spacers used to secure the

P.C. board (7).(6) Remove the line filter (9) and its leads, both connected to the screw-on terminals (8) of the just-removed

noise filter P.C. board (A), and reinstall them on the service P.C. board (A) by firmly connecting them to thescrew-on terminals (8) in the same manner as before.

Line Filter installation:Screw the line filter and the connecting wires together to the terminals as below.The torque of 6 screws of the line filter is “1.84ft•lbs (2.5N•m)”.Please check that the screws connecting the line filter are not loose.If the screw is loose, the screw will generate heats, and cause the line filter to breakdown.Do not use an electric driver or an air driver, as this can cause damage to the line filter.

rLine Filte

Connecting Wire

Connecting Wire

Red White Black

Red White Black

Line Filter

Terminal

Terminal

Connect the wires according to the wiring diagram.

– 253 –

(7) Install the service P.C. boards (A) and (B) in the outdoor unit controller.(Make sure that they are firmly secured to the card edge spacers (7).)

(8) Securely connect the service P.C. boards to the chassis using the earthing screws (5), (6) removed in step 4.If either of the screws is loose, it will pose a risk of device failure by degrading noise control, so take carewhile engaging in the work.Nevertheless, do not use an electric or pneumatic screwdriver under any circumstances as it may lead tocomponent damage.

(9) Connect the wiring using the connectors and fast-on terminals removed in step (3).Make sure that the connectors and fast-on terminals are connected correctly and securely.

(10) If any component on the P.C. board becomes crooked during replacement, straighten it without touchingany other component.

(11) Mount the terminal block sub-assembly (1) and firmly secure it using the screws (3).(12) Securely connect the red, white and black leads from the service P.C. board (A) to the power supply

terminal block (4) using the screws (2).(13) Put the cover on, turn on the power, and check operation.

Close-up view of screw-on terminals (8)

Screw diameter

M6

M4

M3

Torque(ft•lbs)

1.84

0.89

0.37

Screw tightening torque (ft•lbs)

– 254 –

14-8. Noise Filter P.C. Board (MCC-1625 A, B, C)

Replacement Procedure<1. Preparation (model selection)>All P.C. boards of this type leave the factory with default settings that are common to all applicable models.When replacing a P.C. board assembly on site, follow the procedure described below.<2. Replacement steps>(1) Turn off the power to the outdoor unit.(2) Remove the terminal block sub-assembly (1).

Remove the screws (2) on the power supply terminal block (4) and the screws (3) securing the terminalblock subassembly (1).• The screws will be reused during the installation of the service P.C. board, so keep them in a safe place.


4316V497 Noise filter P.C. boardMMY-MAP0724FT6ULMMY-MAP0964FT6ULMMY-MAP1204FT6UL

MCC-1625-A, B, C ASM-PCB (N/F)

Noise Filter P.C. board(4316V497)

7 PCB Mount 7

7

7

5 Screw and washer

5 Screw and washer

8

8 Screw-on terminal

8

8

8

8

7

7

6 6

6Noise Filter P.C. board (A)(MCC-1625-A)

Noise Filter P.C. board (B)(MCC-1625-B)

Ex.MMY-MAP0724FT6UL

2 Screw Lead (black) 2 Screw

Lead (white)

2 ScrewLead (red)

3 Screw

3 Screw 4 Power supply terminal block

3 Screw

3 Screw

Noise Filter P.C. board (MCC-1625 A, B)

9 Line filter

Remove terminal block sub-assembly (1)

Noise Filter P.C. board (MCC-1625 C)

Noise Filter P.C. board (C)(MCC-1625-C)7 PCB Mount

7

77

– 255 –

(3) Disconnect all the connectors and fast-on terminals used to connect wiring to the noise filter P.C. board.• The line filter (9) and its leads, both connected to the screw-on terminals (8) of the noise filter P.C. board

(A) will be removed in step 6.• Disconnect all the connectors and fast-on terminals.

(4) Remove the earthing screws (5), (6).• The removed earthing screws (5), (6) will be reused during the installation of the service P.C. board, so

keep them in a safe place.(5) Remove the noise filter P.C. board assembly by unlocking the four card edge spacers used to secure the

P.C. board (7).(6) Remove the line filter (9) and its leads, both connected to the screw-on terminals (8) of the just-removed

noise filter P.C. board (A), and reinstall them on the service P.C. board (A) by firmly connecting them to thescrew-on terminals (8) in the same manner as before.

Line Filter installation:Screw the line filter and the connecting wires together to the terminals as below.The torque of 6 screws of the line filter is “1.84ft•lbs (2.5•Nm)”.Please check that the screws connecting the line filter are not loose.If the screw is loose, the screw will generate heats, and cause the line filter to breakdown.Do not use an electric driver or an air driver, as this can cause damage to the line filter.

Connect the wires according to the wiring diagram.

Line Filter

Line Filter

Connecting Wire

Terminal

Terminal

Connecting Wire

Red White Black

Red White Black

– 256 –

(7) Install the service P.C. boards (A), (B) and (C) in the outdoor unit controller.(Make sure that they are firmly secured to the card edge spacers (7).)

(8) Securely connect the service P.C. boards to the chassis using the earthing screws (5), (6) removed in step 4.If either of the screws is loose, it will pose a risk of device failure by degrading noise control, so take carewhile engaging in the work.Nevertheless, do not use an electric or pneumatic screwdriver under any circumstances as it may lead tocomponent damage.

(9) Connect the wiring using the connectors and fast-on terminals removed in step (3).Make sure that the connectors and fast-on terminals are connected correctly and securely.

(10) If any component on the P.C. board becomes crooked during replacement, straighten it without touchingany other component.

(11) Mount the terminal block sub-assembly (1) and firmly secure it using the screws (3).(12) Securely connect the red, white and black leads from the service P.C. board (A) to the power supply

terminal block (4) using the screws (2).(13) Put the cover on, turn on the power, and check operation.

Close-up view of screw-on terminals (8)

Screw diameter

M6

M4

M3

Torque(ft•lbs)

1.84

0.89

0.37

Screw tightening torque (ft•lbs)

Close-up view of terminal

block sub-assembly (1)

– 257 –

15. EXPLODED DIAGRAM / PARTS LISTOutdoor unit

15-1. MMY-MAP0724FT9UL

– 258 –


– 259 –

LOWPRESSURESENSOR

FM

LIQUID LINEVALVE SERVICE

DISCHARGEGAS LINE

VALVESERVICE

OILBALANCE

LINE VALVESERVICE

SUCTIONGAS LINE

VALVESERVICE SV

(TL)

PULSEMOTORVALVE 1

VALVE

ACCUMRATOR

(TS1)

(SV2)

(TE1)

(SV3D)

(SV3B)

(SV3A)

(TD1)

(TK4)

(SV3E)(TK5)

OIL HEADER

FAN

TANK LIQUID

(TE2)

(SV6)

(TO)

(SV3C)

PLUGFUSIBLE

SEPARATOR

COMPRESSOR 1

CONDENSERRIGHT SIDE

MOTOR FAN

SV (SV5)

SUB CONDENSER RIGHT SIDE

SV

(TD2)

(SV42)

(TK2)

SV

(SV41)

(TK1)

SV

HIGHPRESSURE

SV

SV

SV

SV

SV

SV

FP

SV (SV11)

(TS2)HIGHPRESSURESENSOR

1

26

69

4, 65, 772, 32, 75

60, 785, 27, 73

74

1

95

93

74

2323

25

25

39

36

3794

74

74

76

76

34

6945

69

46

64

64

9593

70

21

22

55

56

82

71

71

71

71

71

62

30

31

SV

(SV14)

31

93

3

62

62

71

25

61

CONDENSERLEFT SIDE

SUB CONDENSER LEFT SIDE

COMPRESSOR 2

PULSEMOTORVALVE 2

PULSEMOTORVALVE

FP

PLUGFUSIBLE

34

VALVE-2WAY DISTRIBUTORSTRAINERCAPILLARYTUBE

CHECKVALVE

JOINTCHECK

SENSORTEMPERATURE

MA

RK

15-1. Refrigeration Circuit DiagramMMY-MAP0724FT9UL

– 260 –

Ref.No. DescriptionPart No. MMY-MAP0724FT9UL1

2

3

4

5

6

7

8

12

13

14

15

16

19

20

21

22

23

25

26

27

29

30

31

32

34

36

37

39

41

42

43

45

46

47

48

49

50

51

53

54

55

56

59

60

61

62

63

64

65

68

69

VALVE, CHECKED

BONNET, 3/8 IN

TUBE, CAPILLARY, I.D 1.5

BONNET, 1/2 IN

BONNET, 5/8 IN

CABINET, AIR OUTLET

CABINET, AIR INLET, FRONT

CABINET, AIR INLET, BACK

PANEL

CABINET ASSY, SIDE, LEFT

CABINET ASSY, SIDE, RIGHT

CABINET ASSY, FRONT, DOWN

CABINET ASSY, BACK, DOWN

GUARD, FAN

MARK, TOSHIBA

FAN, PROPELLER

MOTOR, FAN, DC280V

COMPRESSOR, DA421A3FB-28M

VALVE, CHECKED

VALVE, CHECK

VALVE, BALL, SBV-JA5GTC-2

COIL, SOLENOID, AC208-230 60HZ

VALVE , 2WAY

VALVE, 2WAY

VALVE, PACKED, 9.52

PLUG, FUSIBLE

ACCUMULATOR

SEPARATOR

TANK, LIQUID

RUBBER, SUPPORTER, PIPE

RUBBER, CUSHION

BAND, FIX

SENSOR ASSY, LOW PRESSURE

SENSOR ASSY, HIGH PRESSURE








CONDENSER ASSY, THREE ROW, LEFT

CONDENSER ASSY, THREE ROW, RIGHT

COIL, PMV

VALVE, BALL, 25.4

VALVE, PMV

VALVE, 2WAY

COIL, VALVE, 2WAY

VALVE, CHECK

VALVE, PACKED, 12.7

COIL, SOLENOID, STF-01AQ1939UA1

JOINT,CHECK

37547751

43F47401

43F47491

43147195

43194029

43100471

43100472

43100473

4310A011

43100481

43100482

43100483

43100484

43119513

4311M677

43120252

4312C102

43141517

43146715

43146721

4314N031

4314N046

43146730

4314N087

43146741

43148220

43148246

43148241

43148264

43149323

43149324

43149325

43149391

43149392

43149403

43149402

43149404

43149405

43149406

43149408

43149409

4314G309

4314G310

4314N028

4314N041

4314N050

4314N044

4314N048

4314N065

4314N073

43146739

43146676

3111111111111111125117121211126511113142211213332113


– 261 –


71

73

74

75

76

77

78

82

83

84

85

87

88

89

90

91

92

93

94

95

96

97

98

100

102

VALVE, 4WAY

VALVE, 2WAY

STRAINER

STRAINER

STRAINER

STRAINER

STRAINER

STRAINER

SWITCH, PRESSURE ACB-4UB105W

HEATER, CASE, 29W 240V


HOLDER, SENSOR, TO

NUT, FLANGE

WASHER

BOLT, COMPRESSOR

OWNER'S MANUAL

HOLDER, SENSOR (TS)

BAND

TUBE, CAPILLARY, BYPASS

TUBE, CAPILLARY, BYPASS, 1.0X2.0X2000L

TUBE, CAPILLARY, ID 1.2

ASM-PMV(4)

COIL, SOLENOID, AC200V

GUARD , WIRE

PLATE , PROTECTOR , SIDE

PLATE , PROTECTOR

4314N049

43146711

4314Q053

4314Q054

4314Q055

4314Q056

4314Q057

4314Q093

43151308

43157276

43157290

43163063

43197175

43197176

43197184

431S8278

43F19904

43F49683

44246235

44246236

44246239

4314N090

4314N088

43162061

4310A015

4310A018

1615131122111161

11511112121


– 262 –

15-1. Inverter AssemblyMMY-MAP0724FT9UL

– 263 –

Ref.No. DescriptionPart No. MMY-MAP0724FT9UL

701

703

704

705

706

707

709

710

711

712

713

714

715

716

718

719

721

722

723

725

SENSOR ASSY, SERVICE43050425

43F63248

43150315

43160623

43158228

43158225

43160609

43160583

43F69524

43182011

4316V453

4316V519

4316V520

4316V451

43282001

43183020

43155224

43160618

43160635

43160644

6

2

6

1

1

2

1

1

2

11

1

1

1

2

3

3

1

4

1

2

SUPPORTER, ASSY

SENSOR, TD (F6)

TERMINAL BLOCK, 3P, 100A(Power supply terminal block)REACTOR(Reactor (For fan) )REACTOR(Reactor (For comp.) )TERMINAL BLOCK, 3P, 60A(Relay terminal block for power supply)TERMINAL, 6P(Communication terminal block)

SUPORT, SPACER

SPACER (EDGE)

P.C. BOARD ASSY, NOISE FILTER, MCC-1608(Noise Filter P.C. board)P.C. BOARD ASSY, INTERFACE, MCC-1606(Interface P.C. board)P.C. BOARD ASSY, FAN IPDU, MCC-1610(Inverter P.C. board for fan)REACTOR(Reactor (For comp.) )

BUSHING

COLLAR

FILTER, LINE (Line filter)

CONNECTOR ASSY

WIRE ASSY

LEAD ASSY, COMPRESSOR


– 264 –

15-2. MMY-MAP0964FT9ULMMY-MAP1204FT9UL

– 265 –


– 266 –

FM

(TL)

VALVE4WAY

ACCUMRATOR

(TS1)

(SV2)

LOWPRESSURESENSOR

(TE1)

(SV3D)

(SV3B)

(SV3A)

(TD1)

(TK4)

(SV3E)(TK5) OIL

HEADER

FAN

TANK LIQUID

(TE2)

(TD3)

(SV43)

(TK3)

(SV6)

(TO)

(SV3F)

(SV3C)

PLUGFUSIBLE SEPARATOR

MOTOR FAN

SV (SV5)

SV

SV

SV

(TD2)

(SV42)

(TK2)

SV

(SV41)

(TK1)

SV

SV

SV SV

SV

SV

SV

SV

FP

SV

SV

(SV11)

(TS2)

21

22

57

5880

80

76

34

40

69

31 7045

69

25

38

35

3

67

62

67

71

71

71

23 23 23

71

24

24

30

93

74

74

74

195

69

46

62

62

82

93

1

026

25

79

4, 65, 8128, 33, 72

60, 792, 32, 75

94

SV

(SV14)

64

31

93

95

CONDENSERRIGHT SIDE


CONDENSERLEFT SIDE


PULSEMOTORVALVE 1

61

PULSEMOTORVALVE 2

PULSEMOTORVALVE

HIGHPRESSURESENSOR

HIGHPRESSURESWITCH

COMPRESSOR COMPRESSOR COMPRESSOR


DISCHARGEGAS LINE

VALVESERVICE

OILBALANCE

LINE VALVESERVICE

SUCTIONGAS LINE

VALVESERVICE


CHECKVALVE

JOINTCHECK

SENSORTEMPERATURE

PLUGFUSIBLE

FP

34

MA

RK

15-2. Refrigeration Circuit DiagramMMY-MAP0964FT9ULMMY-MAP1204FT9UL

– 267 –

0964FT9UL1

2

3

4

6

9

10

11

12

13

14

17

18

19

20

21

22

23

24

25

26

28

29

30

31

32

33

34

35

38

40

42

43

44

45

46

47

48

49

50

52

53

54

57

58

59

60

61

62

63

64

VALVE, CHECKED

BONNET, 3/8 IN


BONNET, 1/2 IN

CABINET, AIR OUTLET



CABINET, SIDE, UP

PANEL





GUARD, FAN

MARK, TOSHIBA

FAN, PROPELLER

MOTOR, FAN, DC280V

COMPRESSOR, DA421A3FB-28M

VALVE, 2WAY

VALVE, CHECKED

VALVE, CHECK



VALVE , 2WAY

VALVE, 2WAY

VALVE, PACKED, 9.52

BONNET, 3/4 IN

PLUG, FUSIBLE

ACCUMULATOR

SEPARATOR

TANK, LIQUID

RUBBER, CUSHION

BAND, FIX













COIL, PMV

VALVE, BALL, 25.4

VALVE, PMV

VALVE, 2WAY

COIL, VALVE, 2WAY

VALVE, CHECK

37547751

43F47401

43F47491

43147195

43100471

43100474

43100475

4310A061

4310A011

43100481

43100482

43100485

43100486

43119513

4311M677

43120252

4312C102

43141517

43146712

43146715

43146721

43146725

4314N046

43146730

4314N087

43146741

43147451

43148220

43148245

43148249

43148265

43149324

43149325

43149388

43149391

43149392

43149403

43149402

43149404

43149405

43149407

43149408

43149409

4314G312

4314G311

4314N028

4314N041

4314N050

4314N044

4314N048

4314N065

411111121111111113241181311211199111226533311213442

1204FT9UL411111121111111113241181311211199111226533311213442

MMY-MAPRef.No. DescriptionPart No.


– 268 –

0964FT9UL65

67

68

69

70

71

72

74

75

76

79

80

81

82

83

84

85

87

88

89

90

91

92

93

94

95

96

97

99

100

101

VALVE, PACKED, 12.7

VALVE, CHECK


JOINT,CHECK

VALVE, 4WAY

VALVE, 2WAY

STRAINER

STRAINER

STRAINER

STRAINER

STRAINER

STRAINER

STRAINER




HOLDER, SENSOR, TO

NUT, FLANGE

WASHER

BOLT, COMPRESSOR

OWNER'S MANUAL

HOLDER, SENSOR (TS)

BAND




ASM-PMV(4)


GUARD , WIRE


PLATE , PROTECTOR

4314N073

4314N075

43146739

43146676

4314N049

43146711

4314Q052

4314Q054

4314Q055

4314Q056

4314Q094

4314Q095

4314Q096

43151308

43157276

43157290

43163063

43197175

43197176

43197184

431S8278

43F19904

43F49683

44246235

44246236

44246239

4314N090

4314N088

43162062

4310A015

4310A017

121315161122133111191

13711113121

1204FT9UL121315161122133111191

13711113121



– 269 –

15-2. Inverter AssemblyMMY-MAP0964FT9ULMMY-MAP1204FT9UL

– 270 –

Ref.No. DescriptionPart No.0964FT9UL 1204FT9UL

701

703

704

705

706

708

709

710

711

712

713

714

715

716

717

718

719

721

722

723

725


43F63248

43150315

43160623

43158228

43160617

43160609

43160583

43F69524

43182011

4316V453

4316V519

4316V520

4316V451

43158226

43282001

43183020

43155224

43160618

43160635

43160644

6

2

8

1

1

1

2

1

2

11

1

1

1

3

3

3

3

1

5

1

3

6

2

8

1

1

1

2

1

2

11

1

1

1

3

3

3

3

1

5

1

3

SUPPORTER, ASSY

SENSOR,TD (F6)

TERMINAL BLOCK, 3P, 100A(Power supply terminal block)REACTOR(Reactor (For fan) )TERMINAL, 6P(Relay terminal block for reactor)TERMINAL BLOCK, 3P, 60A(Relay terminal block for power supply)TERMINAL, 6P(Communication terminal block)

SUPORT, SPACER

SPACER (EDGE)

P.C. BOARD ASSY, NOISE FILTER, MCC-1608(Noise Filter P.C. board)P.C. BOARD ASSY, INTERFACE, MCC-1606(Interface P.C. board)P.C. BOARD ASSY, FAN IPDU, MCC-1610(Inverter P.C. board for fan)P.C. BOARD ASSY, A3IPDU, MCC-1595(Inverter P.C. board for Compressor)REACTOR(Reactor (For comp.) )

BUSHING

COLLAR


CONNECTOR ASSY

WIRE ASSY


MMY-MAP


– 271 –


– 272 –


– 273 –

LOWPRESSURESENSOR

FM


DISCHARGEGAS LINE

VALVESERVICE

OILBALANCE

LINE VALVESERVICE

SUCTIONGAS LINE

VALVESERVICE SV

(TL)

PULSEMOTORVALVE 1

VALVE

ACCUMRATOR

(TS1)

(SV2)

(TE1)

(SV3D)

(SV3B)

(SV3A)

(TD1)

(TK4)

(SV3E)(TK5)

OIL HEADER

FAN

TANK LIQUID

(TE2)

(SV6)

(TO)

(SV3C)

PLUGFUSIBLE

SEPARATOR

COMPRESSOR 1

CONDENSERRIGHT SIDE

MOTOR FAN

SV (SV5)


SV

(TD2)

(SV42)

(TK2)

SV

(SV41)

(TK1)

SV

HIGHPRESSURE

SV

SV

SV

SV

SV

SV

FP

SV (SV11)

(TS2)HIGHPRESSURESENSOR

1

26

69

4, 65, 772, 32, 75

60, 785, 27, 73

74

1

95

93

74

2323

25

25

39

36

3794

074

74

76

76

34

6945

69

46

64

64

95

9370

21

22

55

56

82

71

71

71

71

71

62

30

31

SV

(SV14)

31

93

3

62

62

71

25

61

CONDENSERLEFT SIDE


COMPRESSOR 2

PULSEMOTORVALVE 2

PULSEMOTORVALVE

MA

RK

FP

PLUGFUSIBLE

34


CHECKVALVE

JOINTCHECK

SENSORTEMPERATURE

15-3. Refrigeration Circuit DiagramMMY-MAP0724FT6UL

– 274 –


2

3

4

5

6

7

8

12

13

14

15

16

19

20

21

22

23

25

26

27

29

30

31

32

34

36

37

39

41

42

43

45

46

47

48

49

50

51

53

54

55

56

59

60

61

62

63

64

65

68

69

VALVE, CHECKED

BONNET, 3/8 IN


BONNET, 1/2 IN

BONNET, 5/8 IN

CABINET, AIR OUTLET



PANEL





GUARD, FAN

MARK, TOSHIBA

FAN, PROPELLER

MOTOR, FAN, DC280V

COMPRESSOR, DA421A3FB-29M1

VALVE, CHECKED

VALVE, CHECK



VALVE , 2WAY

VALVE, 2WAY

VALVE, PACKED, 9.52

PLUG, FUSIBLE

ACCUMULATOR

SEPARATOR

TANK, LIQUID


RUBBER, CUSHION

BAND, FIX












COIL, PMV

VALVE, BALL, 25.4

VALVE, PMV

VALVE, 2WAY

COIL, VALVE, 2WAY

VALVE, CHECK

VALVE, PACKED, 12.7


JOINT,CHECK

37547751

43F47401

43F47491

43147195

43194029

43100471

43100472

43100473

4310A011

43100481

43100482

43100483

43100484

43119513

4311M677

43120252

4312C102

43141522

43146715

43146721

4314N031

4314N046

43146730

4314N087

43146741

43148220

43148246

43148241

43148264

43149323

43149324

43149325

43149391

43149392

43149403

43149402

43149404

43149405

43149406

43149408

43149409

4314G309

4314G310

4314N028

4314N041

4314N050

4314N044

4314N048

4314N065

4314N073

43146739

43146676

3111111111111111125117121211126511113142211213332113


– 275 –


71

73

74

75

76

77

78

82

83

84

85

87

88

89

90

91

92

93

94

95

96

97

98

100

102

103

VALVE, 4WAY

VALVE, 2WAY

STRAINER

STRAINER

STRAINER

STRAINER

STRAINER

STRAINER




HOLDER, SENSOR, TO

NUT, FLANGE

WASHER

BOLT, COMPRESSOR

OWNER'S MANUAL

HOLDER, SENSOR (TS)

BAND




ASM-PMV(4)


GUARD , WIRE


PLATE , PROTECTOR

TRANS

4314N049

43146711

4314Q053

4314Q054

4314Q055

4314Q056

4314Q057

4314Q093

43151308

43157276

43157290

43163063

43197175

43197176

43197184

431S8278

43F19904

43F49683

44246235

44246236

44246239

4314N090

4314N088

43162061

4310A015

4310A018

43158232

1615131122111161

115111121211


– 276 –

15-3. Inverter AssemblyMMY-MAP0724FT6UL

– 277 –

Ref.No. DescriptionPart No. MMY-MAP0724FT6UL

701

703

704

705

706

709

710

711

712

713

714

715

716

717

718

719

721

722

723

724

725


43F63248

43150315

43160623

43158228

43152520

43160583

43F69524

43182011

4316V497

4316V519

4316V520

4316V489

43158229

43282001

43183020

43155226

43160618

43160635

43153007

43160638

6

3

6

1

1

1

1

2

13

1

1

1

2

2

3

3

1

4

1

1

2

SUPPORTER, ASSY

SENSOR, TD (F6)

TERMINAL BLOCK, 3P, 100A(Power supply terminal block)REACTOR(Reactor (For fan) )

CONTACTOR, MAGNETIC

TERMINAL, 6P(Communication terminal block)

SUPORT, SPACER

SPACER (EDGE)

P.C. BOARD ASSY, NOISE FILTER, MCC-1625(Noise Filter P.C. board)P.C. BOARD ASSY, INTERFACE, MCC-1606(Interface P.C. board)P.C. BOARD ASSY, FAN IPDU, MCC-1610(Inverter P.C. board for fan)P.C. BOARD ASSY, A3IPDU, MCC-1596(Inverter P.C. board for Compressor)REACTOR, CH79(Reactor (For comp.) )

BUSHING

COLLAR


CONNECTOR ASSY

WIRE ASSY

THERMISTOR, PTC



– 278 –


– 279 –


– 280 –

FM

(TL)

VALVE�4WAY

ACCUMRATOR

(TS1)

(SV2)

LOWPRESSURESENSOR

(TE1)

(SV3D)

(SV3B)

(SV3A)

(TD1)

(TK4)

(SV3E)(TK5) OIL�

HEADER

FAN

TANK LIQUID

(TE2)

(TD3)

(SV43)

(TK3)

(SV6)

(TO)

(SV3F)

(SV3C)

PLUGFUSIBLE SEPARATOR

MOTOR FAN

SV (SV5)

SV

SV

SV

(TD2)

(SV42)

(TK2)

SV

(SV41)

(TK1)

SV

SV

SV SV

SV

SV

SV

SV

FP

SV

SV

(SV11)

(TS2)

21

22

57

5880

80

76

34

40

69

31 7045

69

25

38

35

3

67

62

67

71

71

71

23 23 23

71

24

24

30

93

74

74

74

195

69

46

62

6282

93

1

26

25

79

4, 65, 8128, 33, 72

60, 792, 32, 75

94

SV

(SV14)

64

31

93

95

CONDENSERRIGHT SIDE


CONDENSERLEFT SIDE


PULSEMOTORVALVE 1

61

PULSEMOTORVALVE 2

PULSEMOTORVALVE

HIGHPRESSURESENSOR

HIGHPRESSURESWITCH

COMPRESSOR COMPRESSOR COMPRESSOR


DISCHARGEGAS LINE

VALVESERVICE

OIL�BALANCE�

LINE VALVE�SERVICE

SUCTIONGAS LINE

VALVESERVICE

PLUGFUSIBLE

FP

34

VALVE-2WAY DISTRIBUTORSTRAINERCAPILLARY�TUBE

CHECK�VALVE

JOINT�CHECK

SENSOR�TEMPERATURE

MA

RK

15-4. Refrigeration Circuit DiagramMMY-MAP0964FT6ULMMY-MAP1204FT6UL

– 281 –

Ref.No. DescriptionPart No.0964FT6UL

1

2

3

4

6

9

10

11

12

13

14

17

18

19

20

21

22

23

24

25

26

28

29

30

31

32

33

34

35

38

40

42

43

44

45

46

47

48

49

50

52

53

54

57

58

59

60

61

62

63

64

VALVE, CHECKED

BONNET, 3/8 IN


BONNET, 1/2 IN

CABINET, AIR OUTLET



CABINET, SIDE, UP

PANEL





GUARD, FAN

MARK, TOSHIBA

FAN, PROPELLER

MOTOR, FAN, DC280V

COMPRESSOR, DA421A3FB-29M1

VALVE, 2WAY

VALVE, CHECKED

VALVE, CHECK



VALVE , 2WAY

VALVE, 2WAY

VALVE, PACKED, 9.52

BONNET, 3/4 IN

PLUG, FUSIBLE

ACCUMULATOR

SEPARATOR

TANK, LIQUID

RUBBER, CUSHION

BAND, FIX













COIL, PMV

VALVE, BALL, 25.4

VALVE, PMV

VALVE, 2WAY

COIL, VALVE, 2WAY

VALVE, CHECK

37547751

43F47401

43F47491

43147195

43100471

43100474

43100475

4310A061

4310A011

43100481

43100482

43100485

43100486

43119513

4311M677

43120252

4312C102

43141522

43146712

43146715

43146721

43146725

4314N046

43146730

4314N087

43146741

43147451

43148220

43148245

43148249

43148265

43149324

43149325

43149388

43149391

43149392

43149403

43149402

43149404

43149405

43149407

43149408

43149409

4314G312

4314G311

4314N028

4314N041

4314N050

4314N044

4314N048

4314N065

411111121111111113241181311211199111226533311213442

1204FT6UL411111121111111113241181311211199111226533311213442

MMY-MAP


– 282 –

0964FT6UL65

67

68

69

70

71

72

74

75

76

79

80

81

82

83

84

85

87

88

89

90

91

92

93

94

95

96

97

99

100

101

VALVE, PACKED, 12.7

VALVE, CHECK


JOINT,CHECK

VALVE, 4WAY

VALVE, 2WAY

STRAINER

STRAINER

STRAINER

STRAINER

STRAINER

STRAINER

STRAINER




HOLDER, SENSOR, TO

NUT, FLANGE

WASHER

BOLT, COMPRESSOR

OWNER'S MANUAL

HOLDER, SENSOR (TS)

BAND




ASM-PMV(4)


GUARD , WIRE


PLATE , PROTECTOR

4314N073

4314N075

43146739

43146676

4314N049

43146711

4314Q052

4314Q054

4314Q055

4314Q056

4314Q094

4314Q095

4314Q096

43151308

43157276

43157290

43163063

43197175

43197176

43197184

431S8278

43F19904

43F49683

44246235

44246236

44246239

4314N090

4314N088

43162062

4310A015

4310A017

121315161122133111191

13711113121

1204FT6UL121315161122133111191

13711113121



– 283 –

15-4. Inverter AssemblyMMY-MAP0964FT6ULMMY-MAP1204FT6UL

– 284 –

Ref.No. DescriptionPart No. 0964FT6UL 1204FT6UL

701

703

704

705

706

708

709

710

711

712

713

714

715

716

717

718

719

721

722

723

724

725


43F63248

43150315

43160623

43158228

43160621

43152520

43160583

43F69524

43182011

4316V497

4316V519

4316V520

4316V489

43158229

43282001

43183020

43155226

43160618

43160635

43153007

43160638

6

3

8

1

1

1

1

1

2

13

1

1

1

3

3

3

3

1

5

1

1

3

6

3

8

1

1

1

1

1

2

13

1

1

1

3

3

3

3

1

5

1

1

3

SUPPORTER, ASSY

SENSOR, TD (F6)

TERMINAL BLOCK, 3P, 100A(Power supply terminal block)REACTOR(Reactor (For fan) )TERMINAL, 6P(Relay terminal block for reactor)

CONTACTOR, MAGNETIC

TERMINAL, 6P(Communication terminal block)

SUPORT, SPACER

SPACER (EDGE)

P.C. BOARD ASSY, NOISE FILTER, MCC-1625(Noise Filter P.C. board)P.C. BOARD ASSY, INTERFACE, MCC-1606(Interface P.C. board)P.C. BOARD ASSY, FAN IPDU, MCC-1610(Inverter P.C. board for fan)P.C. BOARD ASSY, A3IPDU, MCC-1596(Inverter P.C. board for Compressor)REACTOR, CH79(Reactor (For comp.) )

BUSHING

COLLAR


CONNECTOR ASSY

WIRE ASSY

THERMISTOR, PTC


MMY-MAP


– 285 –

15-5. Flo w Selector unitRBM-Y0383FUL, RBM-Y0613FUL

LocationNo.

Part No. Description RBM-Y0383FUL RBM-Y0613FUL

11234567

43149418431494174316V338431467164314N08843F600294313501343135017

BODY ASSY, SERVICEBODY ASSY, SERVICEPC BOARD ASSY, MCC-1431COIL, SOLENOID, VPVCOIL, SOLENOID, SR53FILTER,NOISECABLE ASSY, POWERCABLE ASSY

1

131111

1141111

– 286 –

RBM-Y0963FUL

LocationNo.

Part No. Description RBM-Y0963FUL

1234567

431494194316V338431467164314N08843F600294313501343135017

BODY ASSY, SERVICEPC BOARD ASSY, MCC-1431COIL, SOLENOID, VPVCOIL, SOLENOID, SR53FILTER,NOISECABLE ASSY, POWERCABLE ASSY

1152311

– 287 –

WARNINGS ON REFRIGERANT LEAKAGECheck of Concentration LimitThe room in which the air conditioner is to be installed requires a design that in the event of refrigerant gas leaking out, it s concentration will not exceed a set limit.The refrigerant R410A which is used in the air conditioner is safe, without the toxicity or combustibility of ammonia, and is not restricted by laws to be imposed which protect the ozone layer. However, since it contains more than air, it poses the risk of suffocation if its concentration should rise excessively. Suffocation from leakage of R410A is almost non-existent. With the recent increase in the number of high concentration buildings, however, the installation of multi air conditioner systems is on the increase because of the need for effective use of floor space, individual control, energy conservation by curtailing heat and carrying power etc.Most importantly, the multi air conditioner system is able to replenish a large amount of refrigerant compared with conventional individual air conditioners. If a single unit of the multi conditioner system is to be installed in a small room, select a suitable model and installation procedure so that if the refrigerant accidentally leaks out, its concentration does not reach the limit (and in the event of an emergency, measures can be made before injury can occur).In a room where the concentration may exceed the limit, create an opening with adjacent rooms, or install mechanical ventilation combined with a gas leak detection device.The concentration is as given below.

Concentration limitCompliance to the local applicable regulations and standards for the concentration limit is required.

NOTE 1 :If there are 2 or more refrigerating systems in a single refrigerating device, the amounts of refrigerant should be as charged in each independent device.

For the amount of charge in this example:The possible amount of leaked refrigerant gas in rooms A, B and C is 22 lbs (10 kg).The possible amount of leaked refrigerant gas in rooms D, E and F is 33 lbs (15 kg).

NOTE 2 :The standards for minimum room volume are as follows.(1) No partition (shaded portion)

(2) When there is an effective opening with the adjacent room for ventilation of leaking refrigerant gas (opening without a door, or an opening 0.15 % or larger than the respective floor spaces at the top or bottom of the door).

(3) If an indoor unit is installed in each partitioned room and the refrigerant piping is interconnected, the smallest room of course becomes the object. But when a mechanical ventilation is installed interlocked with a gas leakage detector in the smallest room where the density limit is exceeded, the volume of the next smallest room becomes the object.

Total amount of refrigerant (lbs (kg))

Min. volume of the indoor unit installed room (ft3 (m3))

≤ Concentration limit (lbs/ft3 (kg/m3))

e.g., charged amount ((22 lbs) 10 kg)

Outdoor unit

e.g.,charged amount (33 lbs (15 kg))

Indoor unit

Room A Room B Room C Room D Room E Room F

Important

Outdoor unit

Refrigerant piping

Indoor unit

Refrigerant piping

Outdoor unit

Indoor unit

Mechanical ventilation device - Gas leak detector

Very small room

Smallroom

Medium room Large room

Revision recordFirst issue — — Jun., 2013

Revision 1 Numeric correction of Specifications Page 20, 24 Jun., 2013

Correction of System capacity Page 86

Revision 2 Correction of Ps sensor characteristics Page 111 Jul., 2013

Revision 4Warning label chenged Page 6

Sep., 2014Specifications changed Page 17 to 24

Revision 3 FS unit parts list added. page 285, 286 Dec., 2013

Correction of Model name Page 206

TOSHIBA CARRIER CORPORATION72-34 Horikawa-cho, Saiwai-ku, Kawasaki-shi, Kanagawa 212-8585, JAPAN

Copyright © 1999 to 2014 TOSHIBA CARRIER CORPORATION, ALL Rights Reserved.

AIR CONDITIONER (MULTI TYPE) SERVICE MANUALdms.hvacpartners.com/docs/1010/public/05/a13-002.pdfAIR...

Documents

Transcript of AIR CONDITIONER (MULTI TYPE) SERVICE MANUALdms.hvacpartners.com/docs/1010/public/05/a13-002.pdfAIR...