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03502566

SERVICE & MAINTENANCE MANUAL

Revision : (0) - 2009

Specifications are subject to change without noti ce according to Carrier Policy of continuous development.

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TABLE OF CONTENTS

PAGE NO.

1. Precautions for Service & Maintenance 1

2. Split System Description 2

3. Unit Model Designation 3

4. Unit Models & Part Numbers 3

5. Options 4

6. System Operating Limits 5

7. System Safety Protections 5

8. Wiring Diagrams 6

9. Field Electrical Connections Matching 7

10. Refrigeration Cycle 53QG Series 8

11. Replacing Batteries of Remote Control 10

12. Emergency Operation of Air-Conditioner 11

13. Standard and Optional Air Filters 12

14. Air Filter Cleaning 13

15. Indoor Unit Cleaning 14

16.Considerations After Operational Season and Before LongShutdown Period Of Air Conditioner

14

17. Periodical Checks 15

18. Self Diagnostic Function For Malfunction Detection 16

19. Trouble Shooting 17

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1

1. PRECAUTIONS FOR SERVICE AND MAINTENANCE

SAFETY CONSIDERATIONS

Installation of air conditioning equipment can be hazardous due to system pressures and

electrical components.

The installation of the air conditioner must be done by Carrier or one of Carrier authorizeddealers.

WARNING

This installation manual describes the installation procedures of Carrier split room airconditioner consisting of an outdoor unit and an indoor unit manufactured by Carrier.

What is not covered in Carrier warranty?

1- Failure due to wrong electrical connections between the electrical power supply andcircuit breaker of air conditioner leading to fire due to short-circuiting. As these electricalconnections are owners responsibility.

2- Failure due to Misuse, Abusing, overloading, negligence of air filters cleaning andnegligence of instructions included in the owners manual.

3- Failure due to Accident / Weather Natural catastrophe, accident due to bad weather(Hail Storm, Sand Storm, lightning, Flooding, Acid Rain and Air Borne fallout, etc).

4- Failure due to damages during transport done through the owner.

5- Failure due to any modifications in the product done through the owner and not done byCarrier or one of Carrier authorized dealers.

6- Failure due to Installation done through the owner and not done by Carrier or one ofCarrier authorized dealers.

7- Failure due to Service and Maintenance done through the owner and not done by Carrieror one of Carrier authorized dealers.

8- Failure due to repair by using non-genuine Carrier Parts, or substituting other thanCarrier parts done through the owner and not done by Carrier or one of Carrierauthorized dealers.

9- Product normal sound ( refrigerant moving parts )

10- Inconvenience or commercial loss is not covered.

The decision of Carrier in ascertaining the same will be final. Any such repairs will be carried -

out at the expense of the owner ( purchaser ).

!

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2

Outdoor Unit

2. SPLIT SYSTEM DESCRIPTION

1: Remote control signal receiver.

2: Operating status leds. 6: Supply air outlet.

3: Supply air flap. 7: Characteristics nameplate.

4: Air return grille. 8: Inter connecting tubing.

5: Air filter ( behind return grille ). 9: Condensate drainline.

Floor/Wall/Ceiling Split System53VMC14-18-24

2

45

6

8

3

Indoor Unit

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3

3. UNIT MODEL DESIGNATION

4. UNIT MODELS & PART NUMBERS

SPLIT SYSTEMS FOR LOCAL MARKET

System Indoor Unit Outdoor Unit

CompressorModel P/N Model P/N Model P/N

Type Supplier

53VMC14-H 46303279 42VMC14-H 46303290 38VMC14-H 46303278 Rotary LG

53VMC18A-H 46303118 42VMC18A-H 46303276 38VMC18A-H 46303117 Rotary Hitachi

HEATPUMP

53VMC24-H 46303359 42VMC24-H 46303292 38QG24-H 46302128 Rotary LG

SPLIT SYSTEMS FOR MILD AMBIENT EXPORT MARKETS

Indoor Unit Outdoor Unit

CompressorModel P/N Model P/N

Type Supplier

42VMC14-H 46303221 38QG15-H 46303300 Rotary Mitsushita

42VMC18A-H 46303533 38VMC18A-H 46303534 Rotary Hitachi

HEATPUMP

42VMC24-H 46303233 38QG24-H 46303644 Rotary LG



Type Supplier

42VMC14-C 46303293 38QG15-C 46302110 Rotary Mitsushita


COOLONLY


SPLIT SYSTEM FOR HIGH AMBIENT EXPORT MARKETS



Type Supplier


HEATPUMP


Indoor Unit Outdoor UnitCompressor

Model P/N Model P/NType Supplier


COOLONLY


VMCQG

42 = Indoor Unit38 =Outdoor Unit

18

SystemCooling CapacityAt ISO Conditions14 = 14,000 Btu/hr18 = 18,000 Btu/hr24 = 24,000 Btu/hr

Unit Family

HC

Unit TypeH = Heat PumpC = Cool Only

4238

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4

5. OPTIONS

DESCREPTION CONFIGURATION QTY USAGE

Electrical Cables Setfor Heat Pump System

Main Power cable

Outdoor UnitCircuit BreakerPower cableOutdoor Unit Indoor Unit

Control & Defrost cableOutdoor UnitCircuit Breaker P/N : 02500894

Set of 3 To electrically connect betweencircuit breaker, outdoor andindoor units

Electrical Cables Setfor Cool Only System

Main Power cableOutdoor Unit Indoor Unit

Power & Control cable

Outdoor Unit Indoor Unit P/N : 02500893

Set of 2To electrically connect betweencircuit breaker, outdoor andindoor units

Optional set of air filters(Carbon air filter + Photo-catalytic air filter)

P/N : 02802563( for 42VMC14-18-24 )

Set of 2To eliminate odor and cigarettesmoke in the room airrespectively.

PTC starting device for38QG15-18-24

P/N : 02501579

1To start the compressor inoutdoor unit at low voltage down187V

Floor support for indoor units42VMC14-18-24

P/N : 46300822

1To mount the indoor unit on thefloor in case of impossibility ofmounting the unit on the wall

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6. SYSTEM OPERATING LIMITS *

COOLING HEATING

DifferenceDry BulbTemp. C

Wet BulbTemp. C


Wet BulbTemp. C

Indoor temperatureMaximumMinimum

3221

2315

Indoor temperatureMaximum 27 -

Outdoor temperatureMaximumMinimum

5520

--

Outdoor temperatureMaximum 21 -

MAIN POWER SUPPLY

DifferenceNominal

200-240V/1PH/50HZ

Min. Voltage 187

Max. Voltage 264

NOTES:* When the unit is operated above or below these limits for a long time, system diagnostics may detect

a malfunction and the unit will not operate properly.** During heat pump operation the system will undergo several defrost cycles to remove ice that might

collect on the outdoor unit in very low ambient temperature.After completion of defrosts cycle, the system will normally operate.

7. SYSTEM SAFETY PROTECTION

7-1 FOR HEAT PUMP SYSTEM

PROTECTION TYPE PROTECTION EFFECT OPERATION MODE WHEN ON

Cold draft prevention Indoor fan off Heating mode During unit operation

Defrost cycle Indoor fan off Heating mode During unit operation

Indoor coilFreeze protection Compressor off Cooling mode During unit operation

Against frequentCompressor cycling

CompressorTime delay

Cooling or heatingmodes

At unit start-up or changeof operating mode

7-2 FOR COOL ONLY SYSTEM


Indoor coilFreeze protection

Compressor off Cooling mode During unit operation



Cooling modeAt unit start-up or change

of operating mode

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8. WIRING DIAGRAMS

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WIRING DIAGRAMS (Cont.)

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LEGEND

Earth

L Live power supply.

N Neutral power supply.

R Live connection indoor/outdoor unit.

C Neutral connection indoor/outdoor unit.Y Compressor control.

O Reversing valve control.

W2 Outdoor fan motor control.

S Outdoor coil sensor.

LEGEND

EarthL Live power supply.



C Neutral connection indoor/outdoor unit.

Y Compressor control.

9. FIELD ELECTRICAL CONNECTIONS MATCHING

- Connect the power supply to the outdoor unit and then get the power required for the indoor unit from the outdoor unit.- Refer to wiring diagrams and stickers-caution sticked inside the outdoor & indoor units.

9-1 CONNECTING ELECTRICAL WIRING FOR HEAT PUMP SYSTEM

Sizes of electrical wires connecting outdoor and indoor unitsR C Y O W2 S

1 mm2 1 mm2 1 mm2 1 mm2 1 mm2 1 mm2

9-2 CONNECTING ELECTRICAL WIRING FOR COOL ONLY SYSTEM

Sizes of electrical wires connectingoutdoor and indoor units

R C Y

1 mm2 1 mm2 1 mm2

200-240V~

50H

z

CircuitBreaker

MainSwitch

R C Y

R C Y

200-240V~

50Hz

CircuitBreaker

MainSwitch

Indoor Unit

OutdoorUnit

OutdoorUnit

Indoor Unit

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11. REFRIGERATION CYCLE 53VMC SERIES

HEAT PUMP SYSTEM

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REFRIGERATION CYCLE 53VMC SERIES (Cont.)

COOL ONLY SYSTEM

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12. REPLACING BATTERIES OF REMOTE CONTROL Model 42QG&42VMC 14-18-24

12-1 HOW TO INSERT BATTERIES:

(a) Remove the cover of battery compartment at the back of the remotecontrol by pressing the tab toward inside, in the direction of thearrow.

(b) Mount the two-battery size AAA 1.5 Volt supplied with the remotecontrol. Then close the cover of the battery component.

Note:During mounting of batteriescheck battery symbols (+, -)indicated in batteriescompartment.

NOTES:

1. The remote control uses two alkaline batteries (1.5V, LRO03x2).

2. Do not use used batteries or batteries of different types, as this may cause the air conditioner tomalfunction.

3. Batteries should only be changed after turning OFF the air conditioner.

4. The average battery life during normal use is approximately one year.

5. When the symbol appears in the display of the remote control, this indicates that the batteries areexhausted and required to be replaced.

WHEN DIRECTING THE TRANSMITTER OF WIRELESS REMOTE CONTROL TO THE RECEIVEROF INDOOR UNIT FROM A CERTAIN LOCATION, CHECK THE FOLLOWING POINTS:

1- Avoid direct sunlight on the receiver of indoor unit, which may interfere with good signal reception

2- No obstructions such as curtains or plants should be between the remote control and the receiver ofindoor unit.

3- The maximum operating range for the remote control is approximately 5 meters.

4- The remote control must be directed toward the receiver of indoor unit when pressing the buttons of the

desired functions. An acoustical acknowledgement sound (beep) will indicate that signal has been received.

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13. EMERGENCY OPERATION OF AIR-CONDITIONER

INDOOR UNITS 42VMC14-18-24-30-36 SERIES

Indoor unit LEDs

GREEN LED (1) shows the following conditions :

- Fault codes (diagnostic);- During normal operation, the LED is lit.Once a failure occurs, the LED flashes at intervals of 0.5 seconds. The fault code is deduced fromthe number of times the LED flashes. Between one flash cycle and the next a pause of 5 secondselapses.If the timer mode is active and the unit is immediately restarted after a stop, this LED flashes until anew signal is sent to the indoor unit.

YELLOW LED (2) shows the operation in timer mode.

During this operation in this operating mode, the LED is lit .If the time mode is active and the unit is immediately restarted after a stop, this LED flashes until anew signal is sent to the indoor unit.

RED LED (3) gives the following information:

- During normal operation, the LED is OFF;- During defrost the LED is lit;- During the test for wired connection, the LED

flashes at 1- second intervals.

Button (5) : EMERGENCYCan be used when the remote control is lost or inoperative.Use a screwdriver to press the push-button.

Emergency operation:When the unit is in the OFF mode and the emergency is pressed for 5 seconds, the system willoperate as follows:- Automatic mode.- Temperature preset to 22C.- Automatic fan speed.- Louvers set automatically according to operating mode.

- Timer Functions are inactive.

When a signal is received by the remote control, system operates accordingly.

1 : Green Led2 : Yellow Led3 : Red Led4 : Remote control

signal receiver5 : Emergency button

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14. STANDARD AND OPTIONAL AIR FILTERS

14-1 The indoor unit of the split air conditioner is factory supplied with

standard anti-bacteria filters to eliminate dust and lint.

14-2 The optional set of air filters can be field installed inside the indoor unit.The optional set of air filters consists of 2 ( two ) filters:

1. Optional Active carbon air filter is particularly effective in eliminating odor.

2. Optional Photo-catalytic air filter effectively eliminates cigarette smoke in the room air.

14-3 Installation steps of optional set of air filters

Step (1): After opening return air grill, pull the standard air filters.

Step (2): Install optional air filters inside the unit top in the guides specified for filters

then install standard filters.

Step (3): Install return air grille and close it downwards.

Standard Air FiltersAnti-bacteria

Optional Air Filters

Active carbonair filter

( Black )

Photo catalyticair filter

( Blue )

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15. AIR FILTERS CLEANING

- The air fi lters suppl ied with the unit are high-efficiency washable and recyclable filters.- To establish, how frequently these should be cleaned, the operating conditions must be taken

in to account.

- REMOVAL OF STANDARD AIR FILTERS FOR CLEANING:

CONSOLE / UNDERCEILING INDOOR UNITS

Open the return grille without removing the two screws and the central clamp from their position.

Remove acrylic-fiber filters, carbon filter and photocatalytic filter for cleaning.A: Standard filters

B: Carbon filter (Optional)C: Photo catalytic filter (Optional)

- CLEANING OF STANDARD AIR FILTERS:

First clean the filter with a vacuum cleaner every month. And Rinse filter under running water, and dry it

- CLEANING OF CARBON FILTER (OPTIONAL FILTER):

First clean the filter by washing it under running water with a neutral detergent every three months.Leave the filter 2/3 hours to dry in sunlight

- CLEANING OF PHOTOCATALYTIC FILTER (OPTIONAL FILTER):

First clean the filter by washing it under running water without any detergent every three months.Leave the filter 6 hours to dry and regenerate in sunlight

Notes:(1) After cleaning, put the filt ers back in the correct posi tions.(2) Before operating the air condi tioner, check that air fil ters are in their places inside unit.(3) Replace carbon and photocatalytic filters every two years.

CA

B

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15

12h

16. INDOOR UNIT CLEANING

Turn the unit off and switch the mains supply of f.

Use only a clean, damp and soapy cloth.

Do not pour any liquids on the unit.Do not use flammable liquid, solvents or abrasivepowders: these can damage the casing.

Avoid any contact with sources of heat, as hot air candamage the unit casing.Clean the infrared control using a damp cloth.

17. CONSIDERATIONS BEFORE A LONG SHUTDOWNPERIOD OF AIR CONDITIONER

Keep the indoor unit in operation for half a day in theventilation (fan only) mode in order to dry all internalparts.

Switch electric mains supply off.

Take batteries out of the remote control.

Clean indoor and outdoor units.

Clean the air filters and reposition them in the unit.

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16

18. PERIODICAL CHECKS

For a good operation of the air conditioner it is recommended to carry out checks and maintenance asindicated.

Recommended maintenance intervals may very depending on the installation environment, e.g. dusty zones, etc.

Indoor Unit Every Month Every Year

Clean air filter (1)

Clean drain pipe (2)

Change controller batteries

Outdoor Unit Every Month Every Year

Clean outdoor coil from outside (2)

Clean outdoor coil from inside

Blow air over electric parts (2)

Check electric connection tightening (2)

Clean fan wheel (2)

Check fan tightening (2)

Clean drain pan (2)

(1) Increase frequency in dusty zones.

(2) Operations to be carried out by qualified service personnel.

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19. SELF DIAGNOSTIC FUNCTION FOR MALFUNCTION DETECTION

EXPLAINATION OF SELF-DIAGNOSTIC FUNCTION

Self-diagnostic function is the key for success of air conditioner operation.

The printed circuit boards existing inside the indoor unit are equipped with self-diagnostic functionto detect malfunction and automatically stops the operation at the air conditioner.

Once a malfunction is detected, the diagnostic control section will force the system mode to OFFfor 3 minutes. After the OFF delay, system mode releases and allowed returning to its normal state.The system will be allowed to restart on its own.

The diagnostic control section will allow the system to fail 5 consecutive times before shuttingdown the system.

If the system is performing an active defrost, both the compressor drive and reversing valvemalfunction test will be cancelled and reinitiated after the following compressor OFF-ON cycle.

The Unit on lamp is scanned every half-second and the error codes are displayed by the flashingfrequency of unit on lamp. The error codes are displayed during SHUT-OFF (3 minutes off and afterthe 5th retry failure).

MalfunctionReason

FlashingFrequency

AllowedMode

Return Air Sensor 3 Fan Only

Indoor Coil Sensor 4 Fan Only

Compressor Drive 9 Fan Only

Electronic Control PCB (EEPROM) 10 Fan Only

Notes :

1- Prior to the malfunction repair, disconnect the electrical mains supply by moving the circuitbreaker to OFF position.

2- After repairing the malfunction:2-1 Press Reset button (5)2-2 connect the electrical main supply by moving the circuit breaker to ON position2-3 operate the air conditioner by using the wireless remote control.

1

5

1 : Green led flashesif there is a malfunction

5 : Reset Button

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15. TROUBLESHOOTING

TROUBLE REASON ACTIONAfter batteries have been placedinto the remote control, thedisplay is not lit.

Batteries are exhausted or havethe wrong polarity.

Replace batteries or checkpolarity.

When pressing the recessedclock adjustment button, hourfigures on display do not flash.

Recessed button has not beenpressed correctly.

Press with a round point, avoidexerting strong pressure

Recessed button for timesetting is blocked due toexcessive pressure during use.

Check and repair.When pressing any button, allsymbols appear on display.

Remote control has beenirreversibly damaged.

Replace with a new one.

Main switch is OFF. Switch it to ON position.

Remote control batteries areexhausted.

Replace batteries.

Remote control has not beenpointed correctly to the receiverof indoor unit.

Turn remote control OFF andrepeat the operation in thecorrect direction.

There are obstacles (curtains,walls, etc.) between the remotecontrol and the indoor unit

Repeat the operation afterhaving removed the obstacles.

Receiver on the indoor unit orthe remote control is underintense sun radiation.

Avoid direct sun on the unit,shut curtains or shades.

When pressing start button, unit

does not acknowledge signalwith a beep.

OR

When pressing stop button, unitdoes not acknowledge signalwith a beep.

OR

When pressing any functionbutton, the remote controlshows the function requestedon the display, but unit does notacknowledge signal receipt witha beep and does not carry outthe function.

Signal transmission isobstructed by severeinterference from anelectromagnetic field.

Avoid sending signals whencomputers or householdappliances (Food processors,coffee makers, etc.) areoperating close by cellular orcordless telephones may alsointerfere with the control.

Main supply switch is OFF Switch to ON

Fuses or main switch are blown Replace fuses

Protection against frequentcompressor cycling is ON

Wait for 3 minutes.

Air conditioner will not start.

Selected temperature is higherthan the room temperature inthe cooling mode (or lower inthe heating mode).

Correct selected temperature.

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TROUBLESHOOTING (Cont.)

TROUBLE REASON ACTIONAir flow cannot circulate freely Remove obstructions.

Dirty filters reduce air quantity circulating. Clean air filters

Doors and/or windows are open. Close doors and windows

Fan speed has been set to Low Set fan speed at high speed.

Air flow direction is not correct Adjust airflow direction as perthe mode chosen.

Air conditioner is notsupplying enough cooling.

Selected temperature is higher than theroom temperature in the cooling mode.


Air flow cannot circulate freely Remove obstructions.




Air flow direction is not correct Adjust airflow direction as per

the mode chosen.

Air conditioner is notsupplying enough heating.

Selected temperature is Lower than theroom temperature in the heating mode.


Green LED is flashing System malfunction. Contact service centerafter having made the following checks:

Air filters are clean.

Air circulation is not obstructed.

Outdoor unit coil is not obstructed witha severe reduction of air circulation.

Refer to the installation manualfor fault code reading to benotified to service center.Restart air conditioner afterhaving corrected the faults.

A slight mist is emitted fromthe indoor unit during

cooling

The cool air from the indoor unit is cominginto contact with the room air.

Normal operation

A slight whistling noise isheard when the airconditioner starts or stops.

This is due to the refrigerant beginning tocirculate or an adjustment of the refrigerantpressures.

Normal operation

Water vapor (mist) emanatingfrom the outdoor unit.

It is normal in heat pump operation, whendefrost is automatically activated.

Normal operation

Unpleasant smells comingfrom the indoor unit.

Unpleasant smells can be caused bysubstances accumulated in the air filters

Switch the system OFF andcontact an authorized servicecenter to have the filterscleaned.Restart unit in the ventilation(fan only) mode and open

windows to change room air.Strange noises coming fromthe indoor unit.

Occasionally the indoor unit can emit somestrange short noises during operation orwhen it has stopped.These are generally due to the oftemperature changes on the plastic parts.

Normal operation

Starting in heating mode forheat pump systems

If the system starts at low ambienttemperatures, it takes a little while to reacha comfortable room temperature.When the system is started by the remotecontrol, it emits a signal beep, but thelouvre does not swing and the fan does notrun until the operating temperature hasbeen reached.

Normal operation

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03502567 Revision : (0) - 2009

Specifications are subject to change without noti ce according to Carrier Policy of continuous development.

SERVICE & MAINTENANCE MANUAL

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TABLE OF CONTENTSPAGE NO.

1. Precautions for Service & Maintenance 1

2. Split System Description 2

3. Unit Model Designation 34. Unit Models & Part Numbers 35. Options 4

6. System Operating Limits 5

7. System Safety Protections 58. Wiring Diagrams 6

9. Field Electrical Connections Matching 7

10. Refrigeration Cycle 53QG Series 8

11. Replacing Batteries of Remote Control 10

12. Emergency Operation of Air-Conditioner 11

13. Standard and Optional Air Filters 12

14. Air Filter Cleaning 13

15. Indoor Unit Cleaning 14

16.Considerations After Operational Season and Before LongShutdown Period Of Air Conditioner

14

17. Periodical Checks 15

18. Self Diagnostic Function For Malfunction Detection 16

19. Trouble Shooting 17

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1

1. PRECAUTIONS FOR SERVICE AND MAINTENANCE

SAFETY CONSIDERATIONS

Installation and servicing of air conditioning equipment can be hazardous due to systempressures and electrical components. Only trained and qualified service personnel shouldinstall, repair or service the air conditioning equipment.

When working on air conditioning equipment, observe precautions in the literature, tags andlabels attached to the unit and other safety codes.

Wear safety glasses and gloves. Use quenching cloth and have fire extinguisher available forall brazing operations

WARNING This installation manual describes the installation procedures of Carrier split room air

conditioner consisting of an outdoor unit and an indoor unit manufactured by Carrier.

What is not covered in Carrier warranty?

1- Failure due to wrong electrical connections between the electrical power supply andcircuit breaker of air conditioner leading to fire due to short-circuiting.

2- Failure due to Misuse, Abusing, overloading, negligence of air filters cleaning andnegligence of operation manual instructions.

3- Failure due to Accident / Weather Natural catastrophe, accident due to bad weather

(Hail Storm, Sand Storm, lightning, Flooding, Acid Rain and Air Borne fallout, etc).

4- Failure due to Damages during transport done by customer and not by Carrier or oneof its certified.

5- Failure due to any modifications en the product done by customer and not by Carrieror one of its certified dealers.

6- Failure due to Improper Installation done by customer and not by Carrier or one of itscertified dealers.

7- Failure due to Improper Service and Maintenance done by customer and not by Carrier

or one of its certified dealers.

8- Failure due to Improper repair by using non-genuine Carrier Parts, or substitutingother than Carrier parts done by customer and not by Carrier or one of its certifieddealers.

9- Product normal sound ( refrigerant moving parts )

10- Inconvenience or commercial loss is not covered.

The decision of Carrier in ascertaining the same will be final. Any such repairs will be carried outat the expense of the purchaser ( owner ).

!

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2

Outdoor Unit

2. SPLIT SYSTEM DESCRIPTION

1: Remote control signal receiver.

2: Operating status leds. 6: Supply air outlet.

3: Supply air flap. 7: Characteristics nameplate.

4: Air return grille. 8: Inter connecting tubing.

5: Air filter ( behind return grille ). 9: Condensate drainline.

Indoor Unit

Floor/Wall/Ceiling Split System53VMC30-36

45

8

3 2

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3

3. UNIT MODEL DESIGNATION

4. UNIT MODELS & PART NUMBERS

SPLIT SYSTEMS FOR LOCAL MARKET

System Indoor Unit Outdoor Unit

CompressorModel P/N Model P/N Model P/N

Type Supplier

53VMC30-H 46303478 42VMC30-H 46303296 38VMC30-H 46303120 Rotary Siam

HEATPUMP

53VMC36-H 46303479 42VMC36-H 46303297 38VMC36-H 46303121 Recip. Copeland

SPLIT SYSTEMS FOR MILD AMBIENT EXPORT MARKETS

Indoor Unit Outdoor UnitCompressor

Model P/N Model P/NType Supplier

42VMC30-H 46303224 38VMC30-H 46303645 Rotary Siam

HEATPUMP

42VMC36-H 46303288 38VMC36-H 46303136 Recip. Copeland



Type Supplier

42VMC30-C 46303298 38VMC30-C 46303122 Recip. Copeland

COOLONLY


SPLIT SYSTEM FOR HIGH AMBIENT EXPORT MARKETS



Type Supplier

42VMC30-H 46303224 38VMC30-H 46303124 Recip. Copeland

HEATPUMP

42VMC36-H 38VMC36-H 46303136 Recip. Copeland



Type Supplier42VMC30-C 46303298 38VMC30-C 46303122 Recip. Copeland

COOL

ONLY


VMC

42 = Indoor Unit38 =Outdoor Unit

30

SystemCooling CapacityAt ISO Conditions30 = 30,000 Btu/hr36 = 36,000 Btu/hr

Unit Family

HC

Unit TypeH = Heat PumpC = Cool Only

4238

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4

5. OPTIONS

DESCREPTION CONFIGURATION QTY USAGE

Electrical Cables Setfor Heat Pump System

Main Power cable

Outdoor UnitCircuit BreakerPower cableOutdoor Unit Indoor Unit

Control & Defrost cableOutdoor UnitCircuit Breaker P/N : 02500894

Set of 3 To electrically connect betweencircuit breaker, outdoor andindoor units

Electrical Cables Setfor Cool Only System

Main Power cableOutdoor Unit Indoor Unit

Power & Control cable

Outdoor Unit Indoor Unit P/N : 02500893

Set of 2To electrically connect betweencircuit breaker, outdoor andindoor units

Optional set of air filters(Carbon air filter + Photo-catalytic air filter)

P/N : 36302007( for 42VMC30-36 )

Set of 2To eliminate odor and cigarettesmoke in the room airrespectively.

PTC starting device for38VMC30

P/N : 02501579

1To start the compressor inoutdoor unit at low voltage down187V

PTC starting device for38VMC36

P/N : 02501578

1 To start the compressor inoutdoor unit at low voltage down187V

Plastic holder for remotecontrol

P/N : 02501547

1To mount remote control on thewall

Anchor screw and screw

P/N : 02102211

1To fix Plastic holder for remotecontrol on the wall

Floor Mount Grommets forindoor units 42VMC30-36

P/N : 02803109

4To mount the indoor unit on thefloor in case of impossibility ofmounting the unit on the wall

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5

6. SYSTEM OPERATING LIMITS *

COOLING HEATING


Wet BulbTemp. C


Wet BulbTemp. C

Indoor temperatureMaximumMinimum

3221

2315

Indoor temperatureMaximum 27 -

Outdoor temperatureMaximumMinimum

5520

--

Outdoor temperatureMaximum 21 -

MAIN POWER SUPPLY

DifferenceNominal

200-240V/1PH/50HZ

Min. Voltage 187

Max. Voltage 264

NOTES:* When the unit is operated above or below these limits for a long time, system diagnostics may detect

a malfunction and the unit will not operate properly.** During heat pump operation the system will undergo several defrost cycles to remove ice that might

collect on the outdoor unit in very low ambient temperature.After completion of defrosts cycle, the system will normally operate.

7. SYSTEM SAFETY PROTECTION

7-1 FOR HEAT PUMP SYSTEM


Cold draft prevention Indoor fan off Heating mode During unit operation

Defrost cycle Indoor fan off Heating mode During unit operation

Indoor coilFreeze protection Compressor off Cooling mode During unit operation



Cooling or heatingmodes

At unit start-up or changeof operating mode

7-2 FOR COOL ONLY SYSTEM


Indoor coilFreeze protection

Compressor off Cooling mode During unit operation



Cooling modeAt unit start-up or change

of operating mode

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8. WIRING DIAGRAMS

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WIRING DIAGRAMS (Cont.)

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8

LEGEND

Earth

L Live power supply.



C Neutral connection indoor/outdoor unit.Y Compressor control.

O Reversing valve control.

W2 Outdoor fan motor control.

S Outdoor coil sensor.

LEGEND

EarthL Live power supply.



C Neutral connection indoor/outdoor unit.

Y Compressor control.

9. FIELD ELECTRICAL CONNECTIONS MATCHING

- Connect the power supply to the outdoor unit and then get the power required for the indoor unit from the outdoor unit.- Refer to wiring diagrams and stickers-caution sticked inside the outdoor & indoor units.

9-1 CONNECTING ELECTRICAL WIRING FOR HEAT PUMP SYSTEM

Sizes of electrical wires connecting outdoor and indoor unitsR C Y O W2 S

1 mm2 1 mm2 1 mm2 1 mm2 1 mm2 1 mm2

9-2 CONNECTING ELECTRICAL WIRING FOR COOL ONLY SYSTEM

Sizes of electrical wires connectingoutdoor and indoor units

R C Y

1 mm2 1 mm2 1 mm2

200-240V~

50H

z

CircuitBreaker

MainSwitch

R C Y

R C Y

200-240V~

50Hz

CircuitBreaker

MainSwitch

Indoor Unit

OutdoorUnit

OutdoorUnit

Indoor Unit

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10. REFRIGERATION CYCLE 53VMC SERIES

HEAT PUMP SYSTEM

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REFRIGERATION CYCLE 53VMC SERIES (Cont.)

COOL ONLY SYSTEM

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11

11. CONSIDERATIONS FOR REMOTE CONTROL

HOW TO INSERT BATTERIES:

(a) Remove the cover of battery compartment atthe back of the remote control by sliding it outin the direction of the arrow.

(b) Mount the two-battery size AAA 1.5 Volt

supplied with the remote control. Then closethe cover of the battery component.

Note:During mountingof batteries checkbattery symbols(+, -) indicated in

batteriescompartment.

(c) Press reset button with a sharp object if theremote control is not operating properly.

NOTES:

1. The remote control uses two alkaline batteries (1.5V, LRO03x2).2. Do not use used batteries or batteries of different types, as this may cause the air conditioner to

malfunction.3. Batteries should only be changed after turning OFF the air conditioner.4. The average battery life during normal use is approximately one year.5. If the air conditioner does not operate normally after replacing the batteries, remove the batteries,

refit them and press button O again after 5 seconds.6. When the symbol appears in the display of the remote control, this indicates that the

batteries are exhausted and required to be replaced

INSTRUCTIONS WHEN USING WIRELESS REMOTE CONTROL

1- Avoid direct sunlight on the receiver of indoor unit, which may interfere with good signal receptionand the air conditioner may not work properly. Draw the curtains to avoid direct sunlight.

2- No obstructions such as curtains, doors or other materials should be between the remote controland the receiver of indoor unit to avoid blocking the signals from the remote control to the unit.

3- The maximum operating range for the remote control is approximately 5 meters.4- The remote control must be directed toward the receiver of indoor unit when pressing the buttons of

the desired functions. You can hear acoustical acknowledgement sound (beep) will indicate thatsignal has been received.

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13. EMERGENCY OPERATION OF AIR-CONDITIONER

Indoor unit leds

GREEN LED (1) shows the following conditions :

- Fault codes (diagnostic);- During normal operation, the LED is lit.Once a failure occurs, the LED flashes at intervals of 0.5 seconds. The fault code is deduced from thenumber of times the LED flashes. Between one flash cycle and the next a pause of 5 seconds elapses.If the timer mode is active and the unit is immediately restarted after a stop, this LED flashes until anew signal is sent to the indoor unit.

YELLOW LED (2) shows the operation in timer mode.

During this operation in this operating mode, the LED is lit .

If the time mode is active and the unit is immediately restarted after a stop, this LED flashes until a newsignal is sent to the indoor unit.

RED LED (3) gives the following information:

- During normal operation, the LED is OFF;- During defrost the LED is lit;- During the test for wired connection, the LED

flashes at 1- second intervals.

EMEGENCY OPERATION (5)

Can be used when the remote control is lost or inoperative.Use a screwdriver to press the push-button.

Emergency operation:

When the unit is in the OFF mode and the emergency is pressed for 5 seconds, the system will operateas follows:- Automatic mode.- Temperature preset to 22C.- Automatic fan speed.- Louvers set automatically according to operating mode.- Timer Functions are inactive.

When a signal is received by the remote control, system operates accordingly.

1 : Green Led

2 : Yellow Led

3 : Red Led

4 : Remote control

signal receiver

5 : Emergency button

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14. STANDARD AND OPTIONAL AIR FILTERS

14-1 The indoor unit of the split air conditioner is factory supplied with

standard anti-bacteria filters to eliminate dust and lint.

14-2 The optional set of air filters can be field installed inside the indoor unit.The optional set of air filters consists of 2 ( two ) filters:

1. Optional Active carbon air filter is particularly effective in eliminating odor.

2. Optional Photo-catalytic air filter effectively eliminates cigarette smoke in the room air.

14-3 Installation steps of optional set of air filters

Step (1): After opening return air grill, pull the standard air filters.

Step (2): Install optional air filters inside the unit top in the guides specified for filters

then install standard filters.

Step (3): Install return air grille and close it downwards.

Standard Air FiltersAnti-bacteria

Optional Air Filters

Active carbonair filter

( Black )

Photo catalyticair filter

( Blue )

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15. AIR FILTERS CLEANING

- The air fi lters suppl ied with the unit are high-efficiency washable and recyclable filters.- To establish, how frequently these should be cleaned, the operating conditions must be taken

in to account.

- REMOVAL OF STANDARD AIR FILTERS FOR CLEANING:

CONSOLE / UNDERCEILING INDOOR UNITS

Open the return grille without removing the two screws and the central clamp from their position.

Remove acrylic-fiber filters, carbon filter and photocatalytic filter for cleaning.A: Standard filters

B: Carbon filter (Optional)C: Photo catalytic filter (Optional)

- CLEANING OF STANDARD AIR FILTERS:

First clean the filter with a vacuum cleaner every month. And Rinse filter under running water, and dry it

- CLEANING OF CARBON FILTER (OPTIONAL FILTER):

First clean the filter by washing it under running water with a neutral detergent every three months.Leave the filter 2/3 hours to dry in sunlight

- CLEANING OF PHOTOCATALYTIC FILTER (OPTIONAL FILTER):

First clean the filter by washing it under running water without any detergent every three months.Leave the filter 6 hours to dry and regenerate in sunlight

Notes:(1) After cleaning, put the filt ers back in the correct posi tions.(2) Before operating the air condi tioner, check that air fil ters are in their places inside unit.(3) Replace carbon and photocatalytic filters every two years.

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12h

16. INDOOR UNIT CLEANINGTurn the unit off and switch the mains supply of f.

Use only a clean, damp and soapy cloth.Do not pour any liquids on the unit.Do not use flammable liquid, solvents or abrasivepowders: these can damage the casing.

Avoid any contact with sources of heat, as hot aircan damage the unit casing.Clean the infrared control using a damp cloth.

17. CONSIDERATIONS BEFORE A LONG SHUTDOWN

PERIOD OF AIR CONDITIONER

Keep the indoor unit in operation for half a day inthe ventilation (fan only) mode in order to dry allinternal parts.

Switch electric mains supply off.

Take batteries out of the remote control.

Clean indoor and outdoor units.

Clean the air filters and reposition them in theunit.

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19. SELF DIAGNOSTIC FUNCTION FOR MALFUNCTION DETECTIONEXPLAINATION OF SELF-DIAGNOSTIC FUNCTION

Self-diagnostic function is the key for success of air conditioner operation.

The printed circuit boards existing inside the indoor unit are equipped with self-diagnostic functionto detect malfunction and automatically stops the operation at the air conditioner.

Once a malfunction is detected, the diagnostic control section will force the system mode to OFFfor 3 minutes. After the OFF delay, system mode releases and allowed returning to its normal state.The system will be allowed to restart on its own.

The diagnostic control section will allow the system to fail 5 consecutive times before shuttingdown the system.

If the system is performing an active defrost, both the compressor drive and reversing valvemalfunction test will be cancelled and reinitiated after the following compressor OFF-ON cycle.

The Unit on lamp is scanned every half-second and the error codes are displayed by the flashingfrequency of unit on lamp. The error codes are displayed during SHUT-OFF (3 minutes off and afterthe 5th retry failure).

Indoor Units 42VMC Series

MalfunctionReason

FlashingFrequency

AllowedMode

Return Air Sensor 3 Fan Only

Indoor Coil Sensor 4 Fan Only

Compressor Drive 9 Fan Only

Electronic Control PCB (EEPROM) 10 Fan Only

Notes :

1- Prior to the malfunction repair, disconnect the electrical mains supply by moving the circuitbreaker to OFF position.

2- After repairing the malfunction:2-1 Press Reset button (5)2-2 connect the electrical main supply by moving the circuit breaker to ON position2-3 operate the air conditioner by using the wireless remote control.

15

1 : Green led flashesif there is a malfunction

5 : Reset Button

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20. TROUBLE SHOOTING

TROUBLE REASON ACTION

Power failureFuse blown or / and circuit breaker tripped

Call power companyReplace fuse or reset circuit breaker

Detective contactor Check contactor and replace if necessary

Low line voltage Determine cause and eliminate

Incorrect or loose wiring Check wiring diagram and rewire correctly

Compressor and outdoor fan willnot start

Temp. setting too low Reset temp. setting

Faulty wiring or loose connections incompressor circuit

Check wiring and repair or correct

Compressor motor burned out, stuck orinternal over-load open

Replace compressor and determine cause

Compressor will not start, butoutdoor fan runs

Detective run capacitor Check capacitor and replace if necessary

Refrigerant over or under charge Blow refrigerant, evacuate system andrecharge

Air or non condensable refrigerant in system Blow refrigerant, evacuate system andrecharge

Detective compressor Replace and determine causeLow or too high line voltage Determine cause and correct

Blocked outdoor coil Determine cause and replace

Outdoor fan stopped Determine cause and replace

Detective run capacitor Check capacitor and replace if necessary

Faulty fan motor of outdoor section Check motor and replace if necessary

Restriction in refrigerant system Locate restriction and remove

Compressor runs bur cycles oninternal overload (other thannormally satisfying thermostat)

Capillary or Accurate restricted or ice clogged. Blow refrigerant, evacuate system andrecharge

System undersized for load Decrease load or increase system size

Temp. setting too low Reset temp setting

Defective outdoor fan Check for source and replaceAir or non condensable refrigerant in system Blow refrigerant, evacuate system and

recharge

Compressor operates continuously

Air restricted or indoor section filter dirty Clean filter or remove restriction

Dirty outdoor coil Clean coil

Detective outdoor fan Check fan and replace if necessary

Refrigerant over charged Purge excess refrigerant

Air or non condensable refrigerant in system Blow refrigerant, evacuate system andrecharge

Discharge pressure is too high

Outdoor section air restricted Remove restriction

Low refrigerant charge Check for leaks, repair and recharge

Restriction in liquid tube Remove restriction

Discharge pressure is too low

Indoor section air filter dirty Clear filter

Reversing valve hung up or internal leak Check reversing and replace if necessary

Internal pressure relief open Check for source and eliminate

Suction pressure is too high

Refrigerant over charged Purge excess refrigerant

Low refrigerant charge Check for leaks, repair and recharge

Indoor unit frosted See next trouble

Low indoor air or short cycling Eliminate cause, check for fan

Restriction in suction tube working

Suction pressure is too low

Capillary or accurate restricted or ice clogged Locate restriction and removeBlow refrigerant, evacuate system and

recharge

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TROUBLE SHOOTING (Cont.)


Detective fan motor capacitor Replace

Loose leads at fan motor Check for cause and eliminate

Fan motor burned out Replace

Outdoor fan stopped or cycling on

overload

Motor bearing sized Check for cause and eliminate

After batteries have been placed into

the remote control, the display is not lit.

Batteries are exhausted or have the wrong

polarity.

Replace batteries or check polarity.

When pressing the recessed lock

adjustment button, hour figures on

display do not flash.

Recessed button has not been pressed

correctly.

Press with a round point, avoid

exerting strong pressure

Recessed button for time setting is blocked due

to excessive pressure during use.

Check and repair.When pressing any button, all symbols

appear on display.

Remote control has been irreversibly damaged. Replace with a new one.

Main switch is OFF. Switch it to ON position.

Remote control batteries are exhausted. Replace batteries.

Remote control has not been pointed correctly to

the receiver of indoor unit.

Turn remote control OFF and repeat

the operation in the correct direction.

There are obstacles (curtains, walls, etc.)

between the remote control and the indoor unit

Repeat the operation after having

removed the obstacles.

Receiver on the indoor unit or the remote control

is under intense sun radiation.

Avoid direct sun on the unit, shut

curtains or shades.

When pressing start button, unit does

not acknowledge signal with a beep.

OR

When pressing stop button, unit does

not acknowledge signal with a beep.

OR

When pressing any function button, the

remote control shows the functionrequested on the display, but unit does

not acknowledge signal receipt with a

beep and does not carry out the

function.

Signal transmission is obstructed by severe

interference from an electromagnetic field.

Avoid sending signals when

computers or household appliances

(Food processors, coffee makers,

etc.) are operating close by cellular

or cordless telephones may also

interfere with the control.

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TROUBLE CHART (Cont.)


When pressing any button, display will

not change

The triangle symbols 2is on, as

another signal is being transmitted.

Wait for signal 2 to disappear and

repeat the operation.

Main supply switch is OFF Switch to ON

Fuses or main switch are blown Replace fuses

Protection against frequent compressor

cycling is ON

Wait for 3 minutes.

Air conditioner will not start.

Selected temperature is higher than the

room temperature in the cooling mode

(or lower in the heating mode).






Air flow direction is not correct Adjust airflow direction as per the mode

chosen.

Air conditioner is not supplying

enough cooling.

Selected temperature is higher than the

room temperature in the cooling mode.






Air flow direction is not correct Adjust airflow direction as per the mode

chosen.

Air conditioner is not supplying

enough heating.

Selected temperature is Lower than the

room temperature in the heating mode.


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TROUBLE CHART (Cont.)


Green LED is flashing System malfunction contact service

center after having made the following

checks: Air filters are clean.

Air circulation is not obstructed.

Outdoor unit coil is not obstructed with

a service reduction of air circulation.

Refer to the installation manual for fault

code reading to be notified to service

center.Restart air conditioner after having

corrected the faults.

A slight mist is emitted from the

indoor unit during cooling

The cool air from the indoor unit is coming

into contact with the room air.

Normal operation

A slight whistling noise is heard when

is heard when the air conditioner

starts or stops.

This is due to the refrigerant beginning to

circulate or an adjustment of the

refrigerant pressures.

Normal operation

Water vapor (mist) emanating from the

outdoor unit.

It is normal in heat pump operation, when

defrost is automatically activated.

Normal operation

Unpleasant smells coming from the

indoor unit.

Unpleasant smells can be caused by

substances accumulated in the air filters

Switch the system OFF and contact an

authorized service center to have the

filters cleaned.

Restart unit in the ventilation (fan only)

mode and open windows to change room

air.

Strange noises coming from the

indoor unit.

Occasionally the indoor unit can emit

some strange short noises during

operation or when it has stopped.

These are generally due to the of

temperature changes on the plastic parts.

Normal operation

Starting in heating mode for heat

pump systems

If the system starts at low ambient

temperatures, it takes a little while to

reach a comfortable room temperature.

When the system is started by the remote

control, it emits a signal beep, but the

louvre does not swing and the fan does

not run until the operating temperature

has been reached.

Normal operation

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