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Split air conditioner Wall mounted Type

Service manual

AUS-07C(H)53R010Lx

(X=1,2,3,4,5,6,14,15,16,........)

AUS-09C(H)53R010Lx

AUS-12C(H)53R130Lx AUS-12C(H)53R150Lx


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CONTENTS

1Contents

Safety precautions

Installation

11 Block diagram

12 Trouble shooting

133Fault diagnosis by symptom

177Control specification

21 To disassemble mechanical parts

255Exploded views and parts list

Wiring diagrams

2

2

399

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The fo llowing safety precautions must be taken when using your airconditioner.

SAFETY PRECAUTIONS

1. Warni ng: Prior t o repair, disconnect t he power cord.

2. Use p roper parts: us e only exact repl acement p arts. (Also, w e recommend replacing parts rath er than repairing them.)

3. Use the proper tools: use the proper tools and test equipment, and know how to use them. Usingdefective tools or test equip ment may cause probl ems later-in termittent contact, f or example.

4. Power cord: prior to repair, check the power cord and replace it if necessary.

5. Avoid using an extension cord, and avoid tapping into a power cord. This practice may result inmalfunction or fire.

6. Afte r completin g repairs and reassembly , check t he insu lation resistance.Procedure: prior to applying power, measure the resi stance between the pow er cord and the groundterminal. The resistance must be greater than 30 megohms.

7. Make sure that the grounds are adeq uate.

8. Make sure that the installat ion conditio ns are satisfac tory. Relocate the unit if necessary.

9. Keep children away from the unit wh ile it is bein g repaired.

10. Be sure to clean the unit an d its surroundin g area.

1

2

Location of indoor unit

A place solid enough to bear the weight of the unit and not cause any shake.Good ventilation, less dust, far from direct rain and sunshine.

Avoid places close to inflammable gas leakage.

Keep the air inlet and outlet at a far distance from the blockage.

Keep the height distance between the indoor and outdoor unit at most 5m.Mount on the wall solid enough to bear the weight of the unit and not cause any shake. Avoid direct sunshine. A place easy for condensate drain and easy for connecting with the outdoor unit.Keep a far distance away from the fluorescent lamp, it may influence the operation of remote controller.

Location of outdoor unit

Keep at least 1m away from the TV radio and other home appliances.

A place where the air discharged out of the outdoor unit or the operation noise will not annoy your neighbours.No blockage near the outdoor unit. Avoid places close to inflammable gas leakage.

Selecting area for installat ion

INSTALLATION

Select an area for installation that is suitable to the customers needs.

It is harmful to the air conditioner if it is used in the following environments: greasy areas (including areanear machines). Salty area such as coastal areas, areas where sulfuric gas is present such as hot springareas. Contact your dealer for advice.

Caution:

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front

right

backUnderside Left-back

back

Notice: do not elevate thedrain hose.

The copper pipe can be ledfrom back, right, underside,or left-back side.

Cover connecting pipe with adiabatic material.

Sponge plastic adiabaticmaterial with thethickness of 8mm.

While installing the pipeline on thethin armor plate or on the wall ofmetal mesh, you should use thewooden board to clamp betweenthe wall and the pipeline, or wrapup the pipeline with 7-8 layers ofinsulating plastic tape.

left

1 0 0 m m

a b o v e 3

0 0 m m

a b o v e 5 0 0 m m

a b o v e 3 0 0 m m

a b o v e

5 0 0 m m

a b o v e 5

0 0 m m

INSTALLATION

Installat ion diagram of indoor unit and outdoor unit

Confirm the installation position by the mark of the indoor mounting plate.

or

or or

a b o v e 1 5 5 m m

a b o v e

2 5 0 m m

A b o v e

2 0 m m

a b o v e 1 0 5 m m

3

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Securing the mounting plate and drill on the wall1

Secure the mounting plateThe mounting plate should be attached to the structural part of wall (post etc).

fasten string at the central hole

1 05 m m o r m o re

f r o m s i de w a l l

155 m m o r m o re

a t le a s t 25 0 m m


Tapping screw ST4 25(5)

mounting plate

NOTICE: The holes at solid arrow position must be secured to avoid the shake of mounting plate.When the expansion bolts are used, two holes ( 11 20 or 11 26 ) that the distancebetween them is 450mm should be adopted.

Drill on the wall

Center of hole( 65mm)

Confirm the position of holes, and drill holes on the wall.NOTICE:

Fasten string at the central hole

1 05 m m o r m o re


455 m m o r m o re


f r o m s i de w a ll

Tapping screw ST4 25(5) mounting plate

plumb

40mm


plumb

fasten string at the central hole105mm

45mmCenter of hole( 65mm)plumb

NOTICE:The holes at solid arrow position must be secured to avoid the shake of mounting plate.

When the expansion bolts are used, two holes ( 11 20 or 11 26 ) that the distancebetween them is 450mm should be adopted.

Confirm the position of holes, and drill holes on the wall.

INSTALLATION

440mm

fasten string at the central holeat least250mm

2 3 0 m m

440mm

at least 120mmat least 120mm

90mm plumb 90mmPipe hole

4 0 m m

Pipe holeplumb

fasten string at the central hole at least 250mm

at least 180mmat least 140mm

120mm Center of hole( 65mm)Center of hole( 65mm)

4

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Wiring2

Open the front grille;Remove the screw from electrical box cover, pull the

electrical box cover away from the unit and set aside.Remove the screw from fastener, pull the fasteneraway from the unit and set aside.Connect the cable.Replace the fastener and electrical box cover.

Indoor unit terminal

Screw

Connecting cable

Diagram

INSTALLATION

The drain hose must be arranged beneath the copper pipe.The drain hose must not be hunched or twisted.

While wrapping up the drain hose, do not pull it.The drain hose through the room must be wrapped up by thethermal insulation materials.

The copper pipe and the drain hose must be wrapped up by feltstrip. Adiabatic pad should be used at where the pipe contactsthe wall.

NOTE:

12

3

ROUTE OF PIPEIf pipe comes out of the right side of the indoor unit, cut part

1 of the unit;If pipe comes out of the lower-right side of the indoor unit, cutpart 2 of the unit;If pipe comes out of the left side of the indoor unit, cut part 3of the unit.

Installation of the drain hose3

Drain hose

gas pipeLiquid pipe

felt

Adiabaticunderlay

drain hose

If pipe comes out of the left side of the indoor unit, the drain hosemust be refitted, otherwise water leakage may occur.Refit methods: Interchange the position of drain hose and drainrubber plug.Clearance is not allowed after refit, it would lead to water leakage.

Drain rubberplug

REFIT OF DRAIN HOSE

5

NOTE: The appliance shall be installed in accordance with national wiring regulations. The appliance must not be installed in the laundry. The appliance must be installed 2.3m above the floor.

The appliance must be positioned so that the plug is accessible.For some models whose coo ling capac ity are above 4600W (17000BTU/h) ,an all- pole dis connection device which ha s at leas t 3mm separation distance inall pol e and a re sidual current device(RCD )with t he rati ng of above 10mA shallbe incorpo rated in the fixed wiring according to the national r ule.

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Arrangement of the drain hoseTo drain the condensate water easily, the drain hose should be declined downwards.The following 5 arrangement methods are incorrect.

Declinedownward

(Fig. 1) (Fig. 2) (Fig. 3) (Fig. 4)

Waterleak

Standing water

air

Dip hoseinto water

(Fig. 5)

50mm or lessabove floor

Declinedownward

Waterleak

Waterleak

If you find the drain hose not long enough to connect with the indoor unit, you can extend it with the hoses in the accessory box.The drain hose through the room must be wrapped up with the special

adiabatic material.

Drain hose

Hose(ID 15cm)PVC hard

INSTALLATION

5 Pipe Connection

DIAMETER OF PIPE6.35mm ( 1/4 )9.52mm ( 3/8 )12.7mm ( 1/2 )

TORQUE(N m)13.7---17.634.3---41.2

49.0---56.4

Align the centre of joint in line with that of flare and tighten the nut of connecting pipe with wrench.Put some seal oil to cover the joint and the flare.

15.88mm ( 5/8 ) 73.0---78.0

The number of bent position of the pipe in the indoor unit should not exceed 10.The number of bent position of the pipe in the indoor unit and the outdoor unit should not exceed 15.The radius of bent position should be more than 10cm.

Evaporatorcraft tube

Do not exhaust the inside air just by loosing the nut since there is the air of certain pressureinside the tube of indoor unit. Please do not make extra effort for fear of damaging the flare.

Attention:

Please break the evaporator craft tube with pincers before connecting. After exhausting the inside air,use the wrench to twist down the nut of connecting tube of the evaporator.

Installation of the indoor unitLet pipe go through the wall hole and attach the indoorunit to the mounting plate.(Press the rib of indoor unitinside the hook of the mounting plate.) the rib of indoor unit

the mounting plate

Bottom

Indoor unit4

Wall sealing and Pipe fasteningUse putty to seal the wall hole.Use clamp (pipe fastener) to secure the pipe at specified position.

Indoor unit

clamp

screw

get rid of unwanted partseal with putty

secure the connectingpipe with clamp

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INSTALLATION

Connecting

cable

Outdoor unit terminal

1 Wiring

1 Remove the self-tappi ng screws (2 pcs)on the maintenance board an d take out themaintenance board.

Maintenanceboard

Terminal board

Fix the cable wirewith anchor cable

Piping cover

Please utilize outdoor pipe sup port whenthe cab le wire is led from the back side.

Outdoor pipe support(Outdoor pipe s upport is not requiredwhen leadi ng the cable wir e from other places).

The cab le wire can be led f rom the back holeof the piping hole or ejecting hole.

Maintenanceboard

Piping cover Ejecting hole

Right wiring

Back wiring

Sponge

Piping cover

2 Loosen the self-tapp ing screws (2 pcs) onthe fixing clip to loosen the fixing clip.

5 Ins tall the maintenance board . After the pi pesand cabl e wire are insta lled, pl ease seal the

sponge block a s per drawing indi cation.

3 Loosen the fixing sc rew of the wire terminalboard, pass the power wire and signal wirethrough the f ixing clip. Then firmly fix thepower w ire and signal wire on the terminalboard with the fixing screw. (Earth wiremust be connected firmly.)

4 Tig hten the s elf-tappin g screw on the fixing clip.

Wiring For Above 6000W Model (Above 21000BTU/h Model)

Connectingcable

Outdoor unit terminal

or

Installa tion diagram of indoor unit and outdoor unit

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INSTALLATION

If the interconnection cord for power supply has to be replaced, please see thefollowing table for reference.

Notice:

If the signal wire has to be bought separately , choose elec tric wire above 0 .75mm.

MODEL SPECS (Interconnec tion cord)

2700W(10000BTU/h) 1.0mm

3000W(11000BTU/h) -4000W(15000BTU/h)

4500W(18000BTU/h) -8000W(28000BTU/h) 2.5mm

1.5mm

2

2

2

2

WARNING:

Special cable must be used to connect indoor unit and outdoor unit. It should be ensuredthat the terminals are not influenced by external force. Poor connection may cause fire.

The electric box cover must be mounted and secured in position, otherwise fire or electricalshock may occur because of dust or moisture.

The connecting cables must be clipped together.

Please take the electric circuit diagram attached to the indoor/outdoor units as majorreference while installing.

The power wire and signal wire between the indoor/outdoor units must be connectedone by one as per corresponding number on the wiring terminal board.

All the models shall be connected with the mains which has system impedance limitations.

While installing the unit, please see the following table for impedance information orconsult with the supply authority.

The temperature of refrigerant circuit will be high, please keep the interconnection cable awayfrom the copper tube.

3500W (12000BTU/h) 0.2195100W (18000BTU/h) 0.186

R410Aseries

6800W (18000BTU/h) 0.124

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Burr ObliqueCopper pipe

90 Roughness

Reamer Burr Outer diameter A(mm)

2.0--2.53.0--3.53.5--4.0

6.35mm ( 1/4 )

9.52mm ( 3/8 )12.7mm ( 1/2 )15.88mm(5/8 ) 4.0--4.5

Air exhausting4

Installation of the drain joint(only for heat pump type)

Bottom

Double-channeldrain joint Drain hose

Joint of the connecting pipePut some seal oil to cover the joint and the flare.

Align the centre of joint in line with that of flare and tighten the nut of connecting pipewith wrench. ( Adjust the torque by the same method of connecting pipe for indoor unit.)

Insert the outdoor double-channel drain joint in one of thebottom holes of the suitable size then connect drain hoseand joint together.

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3

gas shut-offvalve

liquid shut-off valve

service port

gas connectingpipe

liquid connecting pipe

valve nuts

service port cap

allen wrench

Screw down the cap of both gas shut-off valve andliquid shut-off valve as well as the nut of service port.

Use Allen wrench to turn the valve cork of liquid sideat 90 counter-clockwise, and close it after 10 seconds.Use soapy water to check the gas leakage especiallyat all joint. If there is no gas leakage, please turn thevalve cork of liquid side at 90 counter-clockwise again.

Press the cork of service port at gas shut-off valve, 10seconds later, when you see foggy gas discharged, thatmeans inner air is exhausted out.

Use Allen wrench to turn the valve cork of both liquidshut-off valve and gas shut-off valve counter-clockwiseuntil they are completely open and then replace thevalve caps and tighten them.

Process of flared tube5

Use the pipe cutter to cut off the broken part of flare.

Remove burrs at the cut of the flare.

Insert a nut into the connecting pipe and do flaringwith specified flaring tools, reamers for example.

Check the quality of flaring technique.

Remove burrs at the cut of the flare.

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INSTALLATION

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Screw the gas shut-off valve to close, connectcharging hose(low pressure) to the service valve

and then open gas shut-off valve again.

Connect the refrigerant bottle to the charging hoseand then convert it.

Disconnect the manifold gauge after turning off the

shut-off valve, and then open gas shut-off valve again.

Exhaust the air as the above-mentioned method.

Tighten nuts and caps of each valve.

Fill in liquid refrigerant as the above table.Service port

Manifold gauge

Low pressurevalve

High pressurevalve

Pressure meter

Charging line

Adding refrigerantIf the connecting pipe is longer than 7 metres, add refrigerant as needed. (Cool only type) added

amount A=(Lm-7m) 15g/m ; (Heat pump type)added amount A= (Lm-7m) 50g/m. ( A: amount

of added refrigerant, L: the length of connecting pipe)

6

7

0

0

8

15

50

9

30

100

10

45

150

The length of connecting pipe (m)

(Cool only type)added amount (g)

(Heat pump type)added amount (g)

Set the unit to cool operation mode.

Stop operation of the air conditioner.

Relocation of the air conditioner.

Refer to this procedure when the unit is relocated.

1. Carry out the pump down procedure.

2. Remove the power cord.

3. Disconnect the assembly cable from the indoor and outdoor units.

4. Remove the flare nut connecting the indoor unit and the pipe.

At this time, cover the pipe of the indoor unit and the other pipe using a cap or vinyl plug to avoid foreign

material entering.

5. Disconnect the pipe connected to the outdoor unit.

6. Make sure you do not bend the connection pipes in the middle and store together with the cables.7. Move the indoor and outdoor units to a new location.8. Remove the mounting plate for the indoor unit and move it to a new location.

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10

INSTALLATION

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Operation test8

Before test operation, wiring safety inspection must be carried out carefully again.

1. Emergency switch operation: Every press of emergency switch, the

air conditioner runs as in the following order:

Cool only type: Cool Shut off

Heat pump type: Cool Heat Shut off

2. Remote controller operation: If the indoor unit sounds like Di, Di when pressing I/O button,

that indicates the air conditioner is under the operation of remote controller. After that, press

every button to test their functions.

3. operation: Open the front grille and press the check button. Switch on the power Check switch

source and then the operation test is activated. If the indicator lamps light up at first and then

go out in succession or the LED window of the indoor unit illuminates at first and then goes out,

the system is under normal operation. If one of the indicator lamps is flashing at all times, or

failure codes are displayed on the LED window of the indoor unit, the system has something

wrong and please check malfunction immediately.

Check valve

Capillary tube

Capillary tube

Liquid side

2-way valve

Gas side

3-way valve Accumulator

Compressor

4-way valve

C r o s s

f a n

Heatexchanger (Condenser)

P r o p e

l l e r

f a n

Heatexchanger (Evaporator)

INDOOR UNIT OUTDOOR UNIT

CoolingHeatingGas leak check point

BLOCK DIAGRAM

Refrigerant Cycle Block Diagram

11

INSTALLATION

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TROUBLE SHOOTING Items to be checked first

1. Is the voltage of the power correct? The input voltage shall be rating voltage 10%. The air conditioner may not operate properly if the voltage is out of this range.2. Is the link cable connecting the indoor unit and the outdoor unit linked properly?

Please refer to the wiring diagramCheck the terminals if the indoor unit and outdoor unit are properly linked by the same number of cables.3. When a problem occurs due to the contents illustrated in the table below, it is symptom not related to themalfunction of the air conditioner.

Operation of air conditioner

In COOL operation mode, the compressor does not operateat a room temperature higher than the setting temperaturethat the indoor fan should operate.In a HEAT operation mode, the compressor does notoperate at a room temperature lower than the settingtemperature that indoor fan should operate.

It happens after a delay of 3 minutes when the compressor isreoperated. The same phenomenon occurs when a power is on.

As a phenomenon that the compressor is reoperated after adelay of 3 minutes, the indoor fan is adjusted automatically withreference to a temperature of the air blow.

Fan speed setting is not allowed in AUTO or DRY mode. The speed of the indoor fan is set to low in DRY mode.Fan speed of 3 steps is selected automatically in AUTO mode.

Explanation

Compressor stops operation intermittently in DRY mode. Compressor operation is automatically controlled in DRY modedepending on the room temperature and humidity.

Compressor of the outdoor unit is operating although it isturned off in HEAT mode.

When the unit is turned off while de-ice is activated, thecompressor continues operation for up to 10 minutes(maximum)until the deice is completed.

Timer indicator lamp lights up and the air conditioner does

not operate.

Timer is being activated and the unit is in ready mode.The unit operates normally if the timer operation is cancelled.

The compressor and indoor fan stop intermittently in HEATmode.

The compressor and indoor fan stop intermittently if roomtemperature exceeds a setting temperature in order to protectthe compressor from overheated air in HEAT mode.

Indoor fan and outdoor fan stop intermittently in HEAT mode.The compressor operates in a reverse cycle to remove exterior ice in HEAT mode, and indoor fan and outdoor fan do notoperate intermittently for within 20% of the total heat operation.

The compressor stops intermittently in COOL mode or DRYmode, and fan speed of the indoor unit decreases.

The compressor stops intermittently or the fan speed of theindoor unit decreases to prevent inside/outside air frozendepending on the inside/outside air temperature.

SELF DIAGNOSIS FUNCTIONOur company provides the end-users with thoughtful services by installing various diagnostic systems toindicate the following irregular performances.

Check code Diagnosis of malfunction

FAULT F7

FAULT F8

FAULT F9

Indoor TEMP sensor faults

Indoor coil pipe TEMP sensor faults

Outdoor coil pipe TEMP sensor faults

FAULT F6 PG motor faults

12

Note: When the outdoor coil pipe TEMP sensor is out of order or removed, the air conditioner will set todefrost automatically in order to prevent it not working normally while the outdoor coil pipe TEMP sensor is malfunction.

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FAULT DIAGNOSIS BY SYMPTOM

No coolingeffect at all

Fan motorerror

Fan motor or its capacitor faults.

Loose connection or badly contact.

compressordoes not operate

Control circuit error.

Voltag e may appear a litt le lower or hig her.

Loose or wrong connection.

Compressor faults or jumps for overloading.


Leakage ofrefrigerant Recharge the refrigerant at leaking place.

Block of the coolingsystem

Poor coolingefficiency

Insufficientrefrigerant Some cracks , welding failur e in the system.

Ai r f il te r i sblocked

No periodical cleaning.

Accumula ted l ampb lack , dus t or contaminatedambient environment.

Too high ambienttemperature

The ou tdoor unit gets e xposed to the su n for toolong period.

Ai r condi tion ing burdenis not adeq uate for theroom

The ca pillar y, pipeli ne are blocked or the valve

is not op en or the c onnect ing tube is folded flat.

The door s and window s are not closed well;too wea k of input coo ling power or too man yheat resources in the room.

Some lea kage in the valve .

No cooling

The four-wayvalve error

Blockage inthe system

The val ve is not comp letely open; the cap illary o rPipeline is half blocked.

Connecting tube is folded flat.

The dis tribut ing air of the f our-way valve ma y have mixedtogether; the valve core or solenoid valve faults.

Low airf low volu meLow fan mo tor freque ncy or cap acitor is notfunctional.

Low fan speed or the f an motor f aults.

Extra fluorin is added during mounting.

Mounting locat ion is not suitable, such as near the wall.

Ai r out le t i s blocked o r accumulated lampb lackor dus t is attach ed to the vane.

Poor efficiency of heat dissipating onthe outd oor unit

Not for residential use.

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No heatingeffect at all

Fan motorerror

Fan motor or its capacit or faults.

Loose connect ion or badly contac t.

compressordoes not operate


Voltage may appear a lit tle lower or hig her.

Loose or wr ong connection .

Compressor faults o r jumps for overloadi ng.


Leakage ofrefrigerant Recharge the refri gerant at leaking place.

Block of the coolingsystem

Poor heatingefficiency

Insufficientrefrigerant Some cracks, welding failure in the system.

Air f il te r i sblocked

No periodical cleaning.

contaminated ambient environment.

Too low am bienttemperature

Below 0 .

Too thick frostgenerate d on t hecondenser.

The conde nser does not defr ost, no smooth aircirculation.

Extra ref rigerant o rmixing ai r in the system

Discharge the redundant refrigerator rechargethe refrigerant after vacuum extraction.

The condenser is too dirt y

Ai r condi ti oning burdenis not adequ ate for theroom

Accumulat ed lampbla ck or dust is attachedto the vane.

The capi llary, pipeline are bl ocked or th e valveis not open or the connecting tube is folded flat.

The doors and windows a re not closed wel l;too weak of input cool ing/heat ing power.

Some leakage in the valve .

No heating

The four -way val ve

or solenoi d valve faults.

The four- way valve did not co mmutate or the

distri buting air of the four- way valve mayhave mixed t ogether.

The electr ic heater isnot working

Not satisf y the conditio ns for elect ric heaterrunning.

Plug cor ds may be loose.

The four-wayvalve error

Blockage inthe system

The val ve is not compl etely ope n; the capi llary orPipeline i s half blocked.

Connecti ng tube is folded flat.

The di stribut ing air of the four-way valve may have mixed

together ; the valve core or solenoi d valve fault s.

Low air flow vol umeLow fan mot or frequency o r capacit or is notfunctional.

Low fan speed or the fan motor f aults.

Extra fluorin is added during mounti ng.


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Noise fromindoor unit

Collision soundof the machine

Flowing soundof the liquid

Sound of therunning fan motor

Sound o f plast icpieces r ubbing ordeforming

Oscillationsound

Sound o f runni ng

fan motor

Vane imbalance or distortion.

Sound made bycooling operation

Refrigerant circulation or vane distortion.

Sound o f runni ngcompressor

Something wrong with the compressor, such asoil shortage, valve slice distortion.

Noisy

Fixing b olts some where may loose or rub, somespare p arts ma y not matc h very well.

Refri gerant circula tion or pressu re change ofrefrigerant while switch on/off.

Vane imbala nce or distortio n, rupture; loosescrew of vane .

Plasti c pieces de form due to exp ansion whenhot an d shri nk when c old. Or some spare p artsmay not mat ch very wel l.

Noise fromOutdoor unit

Collision soundof the machine

Collisi on of the pipeli ne, fixing screws loose ordeform caused by rubbing.

Inappropriate installation method; the unitdoes no t match with th e insta llation kit very wellor the compresso r quiver s acutely.

The whole unit resonates thedoor and window.

Sound made b ycompressor or motor

The comp ressor or motor ma kes abnor mal noise.

Conden sed wat er is attache d to the vane.

Vane imbalance or distortion.

Resonance sound

Collision sound of themachine

Flowin g sound ofcondensed water

Sound of runnin g fanmotor

Noise fromthe wholeunit

The uni t does not matc h with the inst allati on kitvery well

Collision of the pipeline, fixing screws loose orplastic pieces deform.


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Switching on the air conditioner

The curre nt leakag e switch jumps to turn of f

Juncti on wire looses and collides with the outercover.

Degraded capability of wire insulation.

Insulat ion capabi lity ofsome components haslowered.

Check the resistanceof every componentby multimeter

Water comes into the plug or electric compone nts.

The fus e is blownor air lim it switch jumps to turn of f

Is the voltageof power s upply lower

than 15% of rated vo ltage(220V)?

Yes The voltag e is low,please add manostat.

Short circuitsomewhere. Partia lly short circui t insome components.

Fuse capacityis adeq uate or not?

Yes

No

No

Replac e with adequa te

fuse.

Check as the above-mentioned method.

Short c ircuit in theelectr ic wire orconnection wire.

Without anyresponse

Check whetherthe recep tacle ha s

power or not.

Power supply error

Stron g circuit breaksthe circulation.

The transformer faults.

The main control boardfaults.


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HEAT MODEIf th e air cond itio ner i s off and then turn ed on whil e set a t COO L ,HEAT or DRY mode , it w illtake approximately 3 minutes for the compressor to start.

The ST at heat mode is adjustable wi th in16 -31 .

When RT ST, the compressor stops; when RT

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DRY MODE

In this mode, the air conditioner automatically sets the room temperature and this temperatureis incontrollable by remote controller. The initial ST =RT-2 .

Control during dry mode:a. When RT

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FAN MODE

Indoor fan ru ns at the set speed while compressor and ou tdoor f an are turned off.

Indoor f an speed can be adjusted for low, medium an d high.

A. The indoor fan runs at low speed.

Sleep mode in heating running.

A. The indoor fan runs at low speed.

B. After one hour of operation the set temperature will increase by 1 . One hour later, the set temperaturewill increase by 1 once more. The unit will then continue operating at 2 above the set temperature.

B. After one hour of operation the set temperature will decrease by 2 . One hour later, the set temperaturewill decrease by 2 once more. The unit will then continue operating at 4 below the set temperature.

Sleep mode in cooling and drying running.

SLEEP MODE

CONTROL SPECIFICATION

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4.Separate the electrical boxfrom the indoor unit.

1.Loosen the earth screw inevaporator.

2.Loosen the sull softly the indoor

pipe temperature sensor outfrom the pipe casing.

tepping motor line, and p

No Parts Procedure Remark

3.Push the hook outside to take the electrical box out easily.

2 Electricalparts

3 Assy tray drain

1.Push the left and right hooks to make the assy pulled out.

22

TO DISASSEMBLE MECHANICAL PARTS

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Outdoor unit

1 Cabinet 1.Turn off the unit and removethe power cable.

2.Remove the upper cabinet,the front cabinet and backcabinet.

2.separate the propeller fanfrom fan motor.

1.Remove the nut flange.

(Turn to the right to removeas it a left turned screw )

1.Loosen the fixing screw ofthe base-electrical control .

2 Fan motor &

propeller fan

3

3.Loosen the fixed screw offan motor,separate the fanmotor from outdoor unit

No Parts Procedure Remark

Ass'y controlout

2.separate the connector.

3.Separate the ass' y controlout from the outdoor unit.

24

TO DISASSEMBLE MECHANICAL PARTS

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Indoor unit

Exploded Views and Parts List

25

AUS-07C(H)53R010Lx



AUS-09C(H)53R150Lx

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26

Indoor unit

No. English Part Name qty. remark No. English Part Name qty. remark

1 air filter 2 left and right aresameness 26 Drain hose 1

27 Electrical control cover 1

3 LED 1

5 Enclosure 1

6 Swing louver 1

7 Water collecting tray 1

8 Evaporator 1

9 Indoor unit fan 1

10 Oil bearing 1

11 Rubber bear support 1

12 Bottom enclosure 1

13 Power supply cord clip 1

14 Electrical control box 1

15 Indoor unit terminal block 1

16 Transformer 1

17 Mounting plate 1

18 Main control board 1

19 Power supply cord 1

20 Room temperature sensor 1

21 Pipe temperature sensor 1

22 Pipe fixing plate 1

23 fan motor 1

24 Electrical holder 1

25 Stepping motor 1

29

2

L1 L3 L16 L18

withoutL15(decorate tape),L17(decorateboard)

1Decorate ring

L1 L17(displaypiece)L15(transparencypiece)L15without

Indoor display panel 128

L14(control box)L15(display box)L16 without

L17without

Electrical control box 14

Front panel

L14 L15 L16parted as upper panel and lower panel

1

AUS-07C(H)53R010Lx



AUS-09C(H)53R150Lx

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Outdoor unit


27

AUS-07C53R010Lx AUS-09C53R010Lx

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28

Outdoor unit

No. English Part Name Quantity No. English Part Name Quantity

1 Air outlet grille 1

2 Front panel 1

3 Left handle 1

4 Top cover 1

5 Outdoor unit fan 1

6 Outdoor fan motor 1

7 Outdoor fan motor supporter 1

8 Condenser 1

9 Partition 1

10 Electrical install board supporter 1

11 Left back side plate 1

12 Back cover 1

13 right back side plate 114 Electrical install board 1

15 Capacitor fixing clip 1

16 Outdoor unit terminal block 1

17 power supply cord clip 1

18 capacitor for Compressor 1

19 Fan motor capacitor 120 Capillary assembly 1

21 High pressure valve 1

22 Low pressure valve 1

23 valve board 1

24 Compressor screw 3

25 Compressor 126 Bottom board 1

27 Right handle 1


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Outdoor unit


29

AUS-07H53R010Lx AUS-09H53R010Lx

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30

Outdoor unitNumber Name Quantity Number Name Quantity

1 Air outlet grille 1 28 Right handle 1

2 Front panel 1 29 Outdoor pipe sensor 1

3 Left handle 1

4 Top cover 1



7Outdoor fan motor supporter

18 Condenser 1

9 Partition 1

10 Four way valve 1

11 Electrical install board supporter 1


13 Back cover 1

14 Right back side plate 1

15 Electrical install board 1




19 Capacitor for Compressor 1

20 Fan motor capacitor 1

21 Capillary assembly 1



24 Valve board 1


26 Compressor 1

27 Bottom board 1


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Outdoor unit


31

AUS-12C53R150Lx AUS-07C53R150Lx AUS-09C53R150Lx

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Outdoor unit


No English Part Name Quantity No. English Part Name Quantity

1 Air outlet grille 1 26 Outdoor fan motor supporter 1

2 Front panel 1


4 Partition 1

5 Valve board 1


7 Power supply cord fixing 1


9 Capacitor for compressor 1


11 Right side board 1

12 Top cover 1






18 Compressor 119 Bottom board 1

20 Condenser 1

21 Uphold board 1


23 Fan motor (out door) 1

24 Fan screw nut M8 325 Right handle 1

AUS-12C53R150Lx

32


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Outdoor unit


33

AUS-12H53R150Lx AUS-07H53R150Lx AUS-09H53R150Lx

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1 Air outlet grille 1 26 Right handle 1

2 Front panel 1 27 Outdoor fan motor supporter 1


4 Partition 1

5 Valve board 1


7 Power supply cord fixs 1


9 Capacitor for compressor 1


11 Right side board 1

12 Top cover 113 fan motor capacitor 1





18 Four way valve 1

19 Compressor 1

20 Bottom board 1

21 Condenser 1

22 Uphold board 1


24 Fan screw nut M6 1

25 Fan screw nut M8 3

Outdoor unit


AUS-12H53R150Lx

344


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Outdoor unit


35

AUS-12C53R130Lx

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36

Outdoor unit



2 Front panel 1




6 Left handle 1

7 Left back side board 1

8 Condenser 1

9 Back cover 1

10 Fixed board 1

11 Top cover 1


13 Capacitor for Compressor 114 Electrical install board 1




18 Right handle 1

19 Right back side board 120 Capillary assembly 1



23 Valve board 1

24 Compressor 1

25 Bottom board 126 Partition 1

AUS-12C53R130Lx

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Outdoor unit

37

AUS-12H53R130Lx

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38

Outdoor unit



2 Left handle 1

3 Front panel 1


5 Partition 1

6 Top cover 1


8 Condenser 1

9 Right back side plate 1

10 Right handle 1


12 Capacitor for Compressor 1

13 Electrical install board 114 Outdoor unit terminal block 1




18 Four way valve 1

19 Capillary assembly 120 High pressure valve 1

21 Valve board 1


23 Compressor 1

24 Back board 1

AUS-12H53R130Lx

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Wiring Diagrams

Indoor unit

Outdoor unit

39





IFAN

AUS-07C53R150Lx

AUS-09C53R150Lx

AUS-07C53R150Lx

AUS-09C53R150Lx

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Wiring Diagrams

Indoor unit AUS-07H53R010Lx

Outdoor unit

40

AUS-12H53R130Lx

AUS-09H53R010Lx


AUS-09H53R010Lx

IFAN

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Wiring Diagrams

Indoor unit AUS-12H53R150Lx

Outdoor unit AUS-12H53R150Lx

IFAN

