TECHNICAL DATA& SERVICE MANUAL

INDOOR UNIT: AW52ALAW64AL

SPLIT SYSTEM AIR CONDITIONER

0.8180.463.0 07/05

387030096

Model No. Product Code No.AW52AL 387030095AW64AL

®

IMPORTANT!Please read before installation

This air conditioning system meets strict safety and operatingstandards.For the installer or service person, it is important to install orservice the system so that it operates safely and efficiently.

For safe installation and trouble-free operation, you must:• Carefully read this instruction booklet before beginning.• Follow each installation or repair step exactly as shown.• Observe all local, state and national electrical codes.• Pay close attention to all warning and caution notices given in

this manual.•The unit must be supplied with a dedicated electrical line.

This symbol refers to a hazard or unsafe practice which can resultin severe personal injury or death.

This symbol refers to a hazard or unsafe practice which can resultin personal injury or product or property damage.

If necessary, get helpThese instructions are all you need for most installation sites andmaintenance conditions.If you require help for a special problem, contact our sale/serviceoutlet or your certified dealer for additional instructions.

In case of improper installationThe manufacturer shall in no way be responsible for improperinstallation or maintenance service, including failure to follow theinstructions in this document.

SPECIAL PRECAUTIONS

• During installation, connect before the refrigerant system andthen the wiring one; proceed in the reverse orden when removingthe units.

When wiring

ELECTRICAL SHOCK CAN CAUSE SEVEREPERSONAL INJURY OR DEATH. ONLY A QUALIFIED,EXPERIENCED ELECTRICIANS SHOULD ATTEMPTTO WIRE THIS SYSTEM.

• Do not supply power to the unit until all wiring and tubing arecompleted or reconnected and checked, to ensure the grounding.

• Highly dangerous electrical voltages are used in this system.Carefully refer to the wiring diagram and these instructions whenwiring.Improper connections and inadequate grounding can causeaccidental injury and death.

• Ground the unit following local electrical codes.• The Yellow/Green wire cannot be used for any connection

different from the ground connection.• Connect all wiring tightly. Loose wiring may cause overheating

at connection points and a possible fire hazard.• Do not allow wiring to touch the refrigerant tubing, compressor,

or any moving parts of the fan.• Do not use multi-core cable when wiring the power supply and

control lines. Use separate cables for each type of line.

When transportingBe careful when picking up and moving the indoor and outdoorunits. Get a partner to help, and bend your knees when lifting toreduce strain on your back. Sharp edges or thin aluminium fins onthe air conditioner can cut your fingers.

When installing...... In a ceiling or wallMake sure the ceiling/wall is strong enough to hold the unit-weight.It may be necessary to build a strong wooden or metal frame toprovide added support.

... In a roomProperly insulate any tubing run inside a room to prevent"sweating", which can cause dripping and water damage to wallsand floors.

... In moist or uneven locationsUse a raised concrete base to provide a solid level foundation forthe outdoor unit.This prevents damage and abnormal vibrations.

... In area with strong windsSecurely anchor the outdoor unit down with bolts and a metalframe. Provide a suitable air baffle.

... In a snowy area (for heat pump-type systems)Install the outdoor unit on a raised platform that is higher thandrifting snow. Provide snow vents.

When connecting refrigerant tubing• Keep all tubing runs as short as possible.• Use the flare method for connecting tubing.• Apply refrigerant lubricant to the matching surfaces of the flare

and union tubes before connecting them; screw by hand andthen tighten the nut with a torque wrench for a leak-freeconnection.

• Check carefully for leaks before starting the test run.

NOTE:Depending on the system type, liquid and gas lines may be eithernarrow or wide. Therefore, to avoid confusion, the refrigeranttubing for your particular model is specified as narrow tube forliquid, wide tube for gas.

When servicing• Turn the power OFF at the main power board before opening

the unit to check or repair electrical parts and wiring.• Keep your fingers and clothing away from any moving parts.• Clean up the site after the work, remembering to check that no

metal scraps or bits of wiring have been left inside the unit beingserviced.

• Ventilate the room during the installation or testng the refrigerationsystem; make sure that, after the installation, no gas leaks arepresent, because this could produce toxic gas and dangerousif in contact with flames or heat-sources.

WARNING

CAUTION

WARNING

2

Page

1. SPECIFICATIONS 41-1 Unit specifications 41-2 Major Component specifications 61-3 Other Component specifications 8

2. DIMENSIONAL DATA 9

3. SOUND LEVEL CHARACTERISTICS 103-1 Sound pressure levels 10

4. ELECTRICAL DATA 114-1 Electric Wiring Diagrams 11

5. CONTROL SYSTEM 125-1 Electronic control 125-2 Legend 135-3 PCB 145-4 General Functions 155-5 Cooling Mode 185-6 Heating Mode 215-7 Automatic Cooling or Heating 265-8 Dry Mode 285-9 Protections 295-10 Timer 345-11 Forced Operation 355-12 Sleep Mode 365-13 Air Filter 385-14 Self Test 395-15 Unit indicators and controls 435-16 System Diagnostics 44

6. TROUBLESHOOTING 45

Table of Contents

3

1. SPECIFICATIONS1-1 Unit Specifications

AW52AL

Power source

Voltage rating

PerformanceCapacityAir circulation (High) m³/h

FeaturesControls/Temperature controlsControl unitTimerFan speedAirflow direction Horizontal

VerticalAir FilterPower noise level High/Med./Low dB-ARefrigerant tubing connectionsRefrigerant Narrow tube mm(in.)tube diameter Wide tube mm(in.)Refrigerant

Dimensions & WeightUnit dimensions Height mm

Width mmDepth mm

Package dimensions Height mmWidth mmDepth mm

Weight Net kgShipping kg

Shipping volume m3

DATA SUBJECT TO CHANGE WITHOUT NOTICE

R410A

Flare type

Washable, Anti-Mold56 / 53 / 50

Cooling HeatingSee catalogue with the requested matching

930

360

Microprocessor/ I.C. thermostat Wireless remote control unit

3 and AutoON/OFF 24 hours

295

ManualAuto

12,7 (1/2)

0,11

220 - 240V ~ 50Hz

230V - 50 Hz

11252801417

6,35 (1/4)

1060210

4

AW64AL

Power source

Voltage rating

PerformanceCapacityAir circulation (High) m³/h

FeaturesControls/Temperature controlsControl unitTimerFan speedAirflow direction Horizontal

VerticalAir FilterPower noise level High/Med./Low dB-ARefrigerant tubing connectionsRefrigerant Narrow tube mm(in.)tube diameter Wide tube mm(in.)Refrigerant

Dimensions & WeightUnit dimensions Height mm

Width mmDepth mm

Package dimensions Height mmWidth mmDepth mm

Weight Net kgShipping kg

Shipping volume m3

DATA SUBJECT TO CHANGE WITHOUT NOTICE

Wireless remote control unit

See catalogue with the requested matching

Microprocessor/ I.C. thermostat

990

220 - 240V ~ 50Hz

230V - 50 Hz

Cooling Heating

2801518

0,11

10602103601125

15,88 (5/8)R410A

295

Washable, Anti-Mold58 / 55 / 53Flare type9,52 (3/8)

ON/OFF 24 hours3 and Auto

ManualAuto

5

1-2 Major Component Specifications

AW52AL

Controller PCBPart No.ControlsControl circuit fuse

Remote Control Unit

Fan & Fan MotorTypeQ'ty ……. Dia. and lenght mmFan motor model…Q'tyNo. Of poles…rpm (230 V, Hi)Nominal output WCoil resistance (Ambient temp. 20 °C ) Ω

Safety devices TypeOperating temp. Open °C

CloseRun capacitor µF

VAC

Flap MotorTypeModelRatingCoil resistance (Ambient temp. 20 °C ) Ω

Heat Exch. CoilCoilRowsFin pitch mmface area

DATA SUBJECT TO CHANGE WITHOUT NOTICE

2automatic reclosing

---

---

---thermal protector

110

---

18

---

Microprocessor250 V - 3,15 A

1…. Ø 92

1,2

450

24BYJ48Stepping motor

0,306

WNG

RC-7 (RC)

Cross - flow

RPS18M-2…14…1200

Aluminium plate fin / Copper tube

DC 12 V Each terminals (1-2, 1-3, 1-4, 1-5) 200 ± 7%

2

6

AW64AL

Controller PCBPart No.ControlsControl circuit fuse

Remote Control Unit

Fan & Fan MotorTypeQ'ty ……. Dia. and lenght mmFan motor model…Q'tyNo. Of poles…rpm (230 V, Hi)Nominal output WCoil resistance (Ambient temp. 20 °C ) Ω

Safety devices TypeOperating temp. Open °C

CloseRun capacitor µF

VAC

Flap MotorTypeModelRatingCoil resistance (Ambient temp. 20 °C ) Ω

Heat Exch. CoilCoilRowsFin pitch mmface area

DATA SUBJECT TO CHANGE WITHOUT NOTICE0,306

WNG

RC-7 (RC)

Cross - flow

RPS30G-2…14…1300

Aluminium plate fin / Copper tube

DC 12 V Each terminals (1-2, 1-3, 1-4, 1-5) 200 ± 7%

2 + additional part1,2

450

24BYJ48Stepping motor

26

---

Microprocessor250 V - 3,15 A

1…. Ø 92

2automatic reclosing

---

---

---thermal protector

110

---

7

1-3 Other Component Specifications AW52ALAW64AL

Thermistor ( Coil sensor )Resistance ΚΩ

Thermistor ( Room sensor )Resistance ΚΩ

NTC-THERMISTOR10 at 25 °C

NTC-THERMISTOR10 at 25 °C

8

2. DIMENSIONAL DATA

9

3. SOUND LEVEL CHARACTERISTICS

AW52AL AW64AL

10

4. ELECTRICAL DATA4-1 Electric Wiring Diagrams

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

Via Varese, 90 - 21013 Gallarate - Va - ItalyTel. +39 0331 755111 - Fax +39 0331 776240

www.argoclima.it