Mitsubishi Electric MSZ-GE42VA Manual de servicio

SERVICE MANUALCONTENTS1. TECHNICAL CHANGES ··································· 32. PART NAMES AND FUNCTIONS ····················· 43. SPECIFICATION ··

10MUZ-GE25VAH MUZ-GE35VAH

11MUZ-GE42VA

12MUZ-GE42VAH

13MUZ-GE50VA

14MUZ-GE50VAH

15Unit: mmMUZ-GE25VA MUZ-GE25VAHOutdoorheatexchangerFlared connectionDefrostthermistorRT61DischargetemperaturethermistorRT62Flared connectionStop val

16MUZ-GE50VA MUZ-GE50VAHOutdoorheatexchangerFlared connectionDefrostthermistorRT61DischargetemperaturethermistorRT62Flared connectionStop valve(with

17The standard specifications apply only to the operation of the air conditioner under normal conditions. Since operating condi-tions vary according t

18NOTE: The above broken lines are for the heating operation without any frost and defrost operation.0.80.91.01.11.21.3-10-5 0 5 1015202530354045Outdo

19MUZ-GE25VA MUZ-GE25VAHMUZ-GE35VA MUZ-GE35VAHCorrection of Cooling capacityCapacity correction factorsCorrection of Cooling inputInput correction f

2 Revision A: • MUZ-GE42/50VA(H) - E1 has been added.

20Outdoor low pressureMUZ-GE25VA MUZ-GE25VAH MUZ-GE35VA MUZ-GE35VAHMUZ-GE42VA MUZ-GE42VAHMUZ-GE50VA MUZ-GE50VAH15 20 25 30 3550 60 70Ambient tempe

21MUZ-GE35VA MUZ-GE35VAHMUZ-GE25VA MUZ-GE25VAHOutdoor unit current(A)Ambient temperature(°C)MUZ-GE42VA MUZ-GE42VAHMUZ-GE50VA MUZ-GE50VAH6.05.55.04

22PERFORMANCE DATA COOL operation at Rated frequencyMUZ-GE25VA MUZ-GE25VAHCAPACITY: 2.5 kW SHF: 0.96 INPUT: 545 WINDOORDB (°C)INDOORWB (°C)OUTDOOR

23PERFORMANCE DATA COOL operation at Rated frequencyMUZ-GE25VA MUZ-GE25VAHCAPACITY: 2.5 kW SHF: 0.96 INPUT: 545 WINDOORDB (°C)INDOORWB (°C)OUTDOOR

24PERFORMANCE DATA COOL operation at Rated frequencyMUZ-GE35VA MUZ-GE35VAHCAPACITY: 3.5 kW SHF: 0.82 INPUT: 865 WINDOORDB (°C)INDOORWB (°C)OUTDOOR

25PERFORMANCE DATA COOL operation at Rated frequencyMUZ-GE35VA MUZ-GE35VAHCAPACITY: 3.5 kW SHF: 0.82 INPUT: 865 WINDOORDB (°C)INDOORWB (°C)OUTDOOR

26PERFORMANCE DATA COOL operation at Rated frequencyMUZ-GE42VA MUZ-GE42VAHCAPACITY: 4.2 kW SHF: 0.77 INPUT: 1215 WINDOORDB (°C)INDOORWB (°C)OUTDOO

27PERFORMANCE DATA COOL operation at Rated frequencyMUZ-GE42VA MUZ-GE42VAHCAPACITY: 4.2 kW SHF: 0.77 INPUT: 1215 WINDOORDB (°C)INDOORWB (°C)OUTDOO

28PERFORMANCE DATA COOL operation at Rated frequencyMUZ-GE50VA MUZ-GE50VAHCAPACITY: 5.0 kW SHF: 0.76 INPUT: 1515 WINDOORDB (°C)INDOORWB (°C)OUTDOO

29PERFORMANCE DATA COOL operation at Rated frequencyMUZ-GE50VA MUZ-GE50VAHCAPACITY: 5.0 kW SHF: 0.76 INPUT: 1515 WINDOORDB (°C)INDOORWB (°C)OUTDOO

3MUZ-GE25VA -E1 MUZ-GE25VAH -E1MUZ-GE35VA -E1 MUZ-GE35VAH -E1MUZ-GE42VA -E1 MUZ-GE42VAH -E1MUZ-GE50VA -E1 MUZ-GE50VAH -E1 1. New modelTECHNICAL CHANG

30PERFORMANCE DATA HEAT operation at Rated frequencyMUZ-GE25VA MUZ-GE25VAHCAPACITY: 3.2 kW INPUT: 700 WINDOORDB (°C)OUTDOOR WB (°C)-10 -5 0 5 10 15

31MUZ-GE25VA MUZ-GE25VAH MUZ-GE35VA MUZ-GE35VAHMUZ-GE42VA MUZ-GE42VAH MUZ-GE50VA MUZ-GE50VAH9-2. R.V. COIL CONTROLHeating . . . . . . . . . . .

3210-1. CHANGE IN DEFROST SETTING Changing defrost finish temperature <JS> To change the defrost finish temperature, cut/solder the JS wire of

33Outline of the functionThis air conditioner can memorize the abnormal condition which has occurred once.Even though LED indication listed on the tro

34 2. Flow chart of the detailed outdoor unit failure mode recall function 2.Blinking pattern when outdoor unit is abnormal:ONOFFNo beepBeepsRepe

353. Outdoor unit failure mode tableThe upper lamp of OPERATION INDICATOR lamp(Indoor unit) Abnormal point (Failure mode / protection) LED indication(

3611-3. TROUBLESHOOTING CHECK TABLENo. Symptom LED indication Abnormal point/ Condition Condition Correspondence 1Outdoor unit does not op-erate. 1-t

3711-4. TROUBLE CRITERION OF MAIN PARTSMUZ-GE25VA MUZ-GE25VAH MUZ-GE35VA MUZ-GE35VAHMUZ-GE42VA MUZ-GE42VAH MUZ-GE50VA MUZ-GE50VAHPart name Chec

3811-5. TROUBLESHOOTING FLOWAre the voltages balanced?Disconnect the connector (CN61) between compressor and the intelligent power module (IPM).Replac

39 F Check of compressor start failure D Check of compressor winding E Check of compressor operation time●Disconnect the connector (CN61) between t

4Air outletDrain outletPipingDrain hoseAir inlet(back and side)MUZ-GE25VA MUZ-GE25VAH MUZ-GE35VA MUZ-GE35VAH MUZ-GE42VA MUZ-GE42VAHMUZ-GE50VA MU

40 G Check of outdoor thermistors H Check of R.V. coil First of all, measure the resistance of R.V. coil to check if the coil is defective. Refer to

41 I Check of outdoor fan motorIs the resistance of outdoor fan motor normal?(Refer to 11-4.)Replace the outdoor fan motor.Replace the inverter P.C.

42 J Check of power supplyIs there voltage 230 VAC between the indoor terminal block S1 and S2?NoYesReplace the indoor electronic control P.C. board.

43Press OPERATE/STOP (ON/OFF) button of the remote controller (the set temperature is displayed) with the remote controller headed towards the indoor

44Check the outdoor fan motor. (Refer to 11-5. .)Is the fuse (F901) blown on the in-verter P.C. board?Check the connection of the connectors (CN931 ,

45 M How to check miswiring and serial signal errorReplace the indoor power P.C. board and the indoor terminal P.C. boardTurn OFF the power supply.Is

46 N Electromagnetic noise enters into TV sets or radiosYesIs the unit earthed?NoEarth the unit.YesIs the distance between the antennas and the indoo

47 O Check of defrost heaterCheck the following points before checking electric continuity.1. Does the resistance of ambient temperature thermistor h

48-20 -10 0 10 20 30 400102030405060708090100Temperature( )Defrost thermistor(RT61)Ambient temperature thermistor(RT65)Outdoor heat exchanger temper

49-20 -10 0 10 20 30 400102030405060708090100Temperature( )Defrost thermistor(RT61)Ambient temperature thermistor(RT65)Outdoor heat exchanger temper

5Outdoor model MUZ-GE25VAMUZ-GE25VAHMUZ-GE35VAMUZ-GE35VAHMUZ-GE42VAMUZ-GE42VAHMUZ-GE50VAMUZ-GE50VAHPower supply Single phase, 230 V, 50 HzCapacity Ra

5012-1. MUZ-GE25VA MUZ-GE25VAH MUZ-GE35VA MUZ-GE35VAH MUZ-GE42VA MUZ-GE42VAHNOTE: Turn OFF power supply before disassembling.OPERATING PROCEDURE

51OPERATING PROCEDUREPHOTOS2. Removing the inverter assembly, inverter P.C. board(1) Remove the cabinet and panels. (Refer to 1.)(2) Disconnect the le

52OPERATING PROCEDUREPHOTOS5. Removing outdoor fan motor(1) Remove the cabinet and panels. (Refer to 1.)(2) Disconnect the following connectors: <

5312-2. MUZ-GE50VA MUZ-GE50VAHNOTE: Turn OFF power supply before disassembling.OPERATING PROCEDUREPHOTOS1. Removing the cabinet(1) Remove the screws

54OPERATING PROCEDUREPHOTOS2. Removing the inverter assembly, inverter P.C. board(1) Remove the cabinet and panels. (Refer to 1.)(2) Disconnect the le

55OPERATING PROCEDURE PHOTOS4. Removing the discharge temperature thermistor, defrost thermistor, outdoor heat exchanger tempera-ture thermistor and a

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPAN© Copyright 2008 MITSUBISHI ELECTRIC CO.,LTDDistributed in Dec. 2008. No

6Specifi cations and rating conditions of main electric partsModel Item MUZ-GE25VAMUZ-GE25VAHMUZ-GE35VAMUZ-GE35VAHMUZ-GE42VAMUZ-GE42VAHMUZ-GE50VAMUZ-GE

790807060504030201063 125 250 500 1000 2000 4000 8000NC-60NC-50NC-40NC-30NC-20NC-70OCTAVE BAND SOUND PRESSURE LEVEL, 0dB re 0.0002 MICRO BARBAND CENTE

8Unit: mmMUZ-GE25VA MUZ-GE25VAH MUZ-GE35VA MUZ-GE35VAHMUZ-GE42VA MUZ-GE42VAH1069800302.5500 Bolt pitch for installation15022.3Handle550280164.599.

9MUZ-GE25VA MUZ-GE35VAWIRING DIAGRAM6