Mitsubishi Electric MSZ-GA25VA - E3 Manual de servicio

SERVICE MANUALCONTENTS1. TECHNICAL CHANGES ····································42. PART NAMES AND FUNCTIONS······················83. SPECIFICATION····

10NOISE CRITERIA CURVES490807060504030201063 125 250 500 1000 2000 4000 8000NC-60NC-50NC-40NC-30NC-20NC-70OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.00

115OUTLINES AND DIMENSIONS1069800302.5500 Bolt pitch for installation15022.3Handle550280164.599.5170.523Service panelService port285344.544400Air inAi

12WIRING DIAGRAM6SYMBOLCT,CT761,CT781C63A,C63B,C63CC65DB61,DB65DSA61F61F71,F801IC801IPMSYMBOLL61L62,L63MCMFNR63,NR64RT61RT62RT64RT65SYMBOLR61,R831R64A

13MUZ-GA25VA- (Serial No. 6021351T~)MUZ-GA25VA-E4E3OB379 C--1qxp 07.2.1 2:25 PM Page 13

14SYMBOLCT,CT761,CT781C63A,C63B,C63CC65DB61,DB65DSA61F61F71,F801HIC801IPMSYMBOLL61L62,L63MCMFNR63,NR64RT61RT62RT64RT65R61,R831SYMBOLR64A,R64BSR61TB1,T

15MUZ-GA25VAH- (Serial No. 7000001T~)MUZ-GA25VAH-E4E3OB379 C--1qxp 07.2.1 2:25 PM Page 15

16SYMBOLCT,CT761,CT781C63A,C63B,C63CDB61,DB65DSA61F61F71,F801IC801IPMLEVSYMBOLL61L62,L63MCMFNR63,NR64RT61RT62RT64RT65SYMBOLR61,R831R64A,R64BTB1,TB2TR8

17MUZ-GA35VAHSYMBOLCT,CT761,CT781C63A,C63B,C63CDB61,DB65DSA61F61F71,F801HIC801IPMLEVSYMBOLL61L62,L63MCMFNR63,NR64RT61RT62RT64RT65R61,R831SYMBOLR64A,R6

18 SYMBOLCT,CT761,CT781C63A,C63B,C63CDB61,DB65DSA61F61F71,F801,F901IC801IPM,IC932LEV SYMBOLL61L62,L63MCMFNR63,NR64RT61RT62RT64RT65 SYMBOLR61,R831R6

19MUZ-GA35VAHwwAlternative inverter P.C. boardSYMBOLCT,CT761,CT781C63A,C63B,C63CDB61,DB65DSA61F61F71,F801,F901HIC801IPM,IC932LEVSYMBOLL61L62,L63MCMFNR

2Revision:A•Alternative inverter P.C.board has been added(Refer to 11-7.1. Inverter P.C.board (Alternative)). FUSE F901 has beenequipped to MUZ-GA35.

20REFRIGERANT SYSTEM DIAGRAM7Unit:mmOutdoorheatexchangerFlared connectionDefrostthermistorRT61DischargetemperaturethermistorRT62Flared connectionStop

21Unit:mmOutdoorheatexchangerFlared connectionDefrostthermistorRT61DischargetemperaturethermistorRT62Flared connectionStop valve(with strainar)Stop va

22ADDITIONAL REFRIGERANT CHARGE (R410A:g)Outdoor unit precharged14m2707m06m05m011m180Model Refrigerant piping length (one way)8m909m12010m15012m21013m

23PERFORMANCE CURVES8The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions.Si

24Correction of Cooling total inputInput correction factorsThe operational frequency of compressorCorrection of Cooling capacityCapacity correction fa

25(kgf/F [Gauge]) (MPa [Gauge]) 18 3215 205025603070 (%)35(˚C)0.20.40.60.81.01.265Hz24681012141.4Ambient temperature(˚C) Ambient humidity

26MUZ-GA25VA MUZ-GA25VAH21 18 2.94 1.79 0.61 512 2.81 1.72 0.61 538 2.70 1.65 0.61 563 2.60 1.59 0.61 58921 20 3.06 1.50 0.49 538 2.94 1.44 0.49 570 2

2721 18 2.45 1.49 0.61 627 2.25 1.37 0.61 666 2.08 1.27 0.61 69121 20 2.58 1.26 0.49 653 2.40 1.18 0.49 685 2.23 1.09 0.49 72322 18 2.45 1.59 0.65 627

2821 18 4.11 2.39 0.58 864 3.94 2.28 0.58 907 3.78 2.19 0.58 950 3.64 2.11 0.58 99421 20 4.29 1.97 0.46 907 4.11 1.89 0.46 961 3.99 1.84 0.46 983 3.85

2921 18 3.43 1.99 0.58 1058 3.15 1.83 0.58 1123 2.91 1.68 0.58 116621 20 3.61 1.66 0.46 1102 3.36 1.55 0.46 1156 3.12 1.43 0.46 122022 18 3.43 2.13 0.

31TECHNICAL CHANGESMUZ-A09YV - ➔ MUZ-GA25VA -MUZ-A09YVH - ➔ MUZ-GA25VAH -E1E1E1E1MUZ-A12YV - ➔ MUZ-GA35VA -MUZ-A12YVH - ➔ MUZ-GA35VAH -E1E1E1E11

30PERFORMANCE DATA HEAT operationCAPACITY:3.2(kW)INPUT:760(W)OUTDOOR WB(:)INDOOR-10 -5 0 5 10 15 20DB(:)Q INPUT Q INPUT Q INPUT Q INPUT Q INPUT Q I

31ACTUATOR CONTROL9MUZ-GA25VA MUZ-GA35VAMUZ-GA25VAH MUZ-GA35VAHDischarge temperature thermistorIndoor coil temperature thermistorDefrost thermistorF

3210SERVICE FUNCTIONSCHANGE IN DEFROST SETTING<JS> When the JS wire of the outdoor Inverter P.C. board is cut/ soldered, the defrost finish temp

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

342. Flow chart of the detailed outdoor unit failure mode recall functionOperational procedureNote1. Make sure to release the failure mode recall func

353. Outdoor unit failure mode tableOFF2-time flash2.5 seconds OFF3-time flash2.5 seconds OFF4-time flash2.5 seconds OFF5-time flash2.5 seconds OFF6-t

36StartIndoor unit operates.Outdoor unit doesn't operate.Indoor unit doesn't receive the signal from remote controller.OPERATION INDICATORl

37ONOFF2.5-second OFF2.5-second OFFNOTE 1. The location of LED is illustrated at the right figure. Refer to 11-7.1.2. LED is lighted during normal ope

3811-5. Trouble criterion of main partsPart name FigureCheck method and criterionOutdoor fan motor(MF)INNER FUSE (Only MUZ-GA25VA/H)152i : CUT OFF0

39●With the connector between the compressor and the intelligent power module disconnected, activate the inverter and check if the inverter is normal

4RefrigerationoilRefrigerantNew refrigerantR410AHFC-32: HFC-125 (50%:50%)Pseudo-azeotropic refrigerantNot includedA1/A172.6-51.41.55764Non combustible

40Check of compressorDCheck of compressor windingECheck of compressor operation timeF● Disconnect the connector (CN61) between the compressor and inte

41Check of outdoor thermistorsGWhen OPERATION INDICATOR lamp flashes 6-time.The thermistors in the outdoor unit are abnormal.Check of R.V. coilHMeasur

42Check of outdoor fan motorIOutdoor fan motor does not operate.MUZ-GA25VAMUZ-GA25VAHReplace the outdoor fan motor.Does the left lamp of OPERATION IND

43Check of power supplyJInverter does not operate.Check of outdoor fan motorIOutdoor fan motor does not operate.Disconnect the connector(CN61) between

44Outdoor unit does not operate at all, or stops immediately due to overcurrent.Check of LEV (Expansion valve)Check of current-limiting resistorKLHeat

45Check of defrost heaterMReplace the inverter P.C. board.Is there 230V AC between CN722 1 and 3 on the power P.C. board? Refer to 11-7.2.YesNoNo prob

46Check of inverter P.C. boardNOutdoor fan motor does not operate, or stops immediately after starting up.Yes(10-time flash)YesCheck the LED indicatio

How to check mis-wiring and serial signal error (when outdoor unit does not work)O47• When unit cannot operate neither by the remote controller nor by

Operation check of the solenoid valve.P48Do you hear the operation sound(click sound) of the solenoid valveevery 5 seconds?Disconnect CN923 and measur

49Electromagnetic noise enters into TV sets or radiosQReplace or repair the antenna.Replace or repair the coaxial cable.NoNoNoYesYesNoNoYesYesYesIs th

5-30 -20 -10 0 10 203040 50 60-0.50.00.51.01.52.02.53.03.54.0(MPa [Gauge])R410AR22Conversion chart of refrigerant temperature and pressureSaturated li

50MUZ-GA25VA MUZ-GA35VAMUZ-GA25VAH MUZ-GA35VAHBack side of unit-20 -10 0 10 20 30 400102030405060708090100Temperature(:)Ambient temperature thermist

51Back side of unit-20 -10 0 10 20 30 400102030405060708090100Temperature(:)Ambient temperature thermistor(RT65)Defrost thermistor(RT61)Temperature(:)

52Heater connector(CN722) R.V.coil(CN721)230V AC230V ACBack side of unitMUZ-GA25VAHMUZ-GA35VAH}MUZ-GA25VA MUZ-GA35VAMUZ-GA25VAH MUZ-GA35VAHFront sid

5312DISASSEMBLY INSTRUCTIONSOPERATING PROCEDUREPHOTOSPhoto 11. Removing the cabinet(1) Remove the screw fixing the service panel. (See Photo 2.)(2) Pu

3. Removing R.V. coil (1) Remove the top panel, cabinet and service panel.(Refer to 1.)(2) Disconnect the power supply and indoor/outdoor connecting w

55OPERATING PROCEDUREPHOTOSPhoto 6Photo 7Defrostthermistor5. Removing outdoor fan motor(1) Remove the top panel, cabinet and service panel.(Refer to 1

5613PARTS LIST (non-RoHS compliant)13-1. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS111122182013109MUZ-GA25VA MUZ-GA35VAMUZ-GA25VAH MUZ-GA35V

5712345678910111213141516171819202122232425262728KNB065FDTHKNB073FDVH3RUBBERS/SET{9.52{6.35RA6V21-RC0J50-{3.0✕{2.0✕240{3.0✕{1.4✕800{3.0✕{1.4✕500MCMCLE

5813-2. OUTDOOR UNIT ELECTRICAL PARTS1061 4REACTORPOWER P.C. BOARDPOWER P.C. BOARDPOWER P.C. BOARDPOWER P.C. BOARDR.V. COILR.V. COILTHERMISTOR SETAMBI

59MUZ-GA25VA MUZ-GA35VA13-3. DRAIN SOCKETSymbolin WiringDiagramQ'ty/unitMUZ-GA25VA-RemarksParts No. Parts NameE1MUZ-GA35VA-E1MUZ-GA25VA-E2MUZ-GA3

6Electronic scale for refrigerant chargingOutdoor unitRefrigerant gas cylinderoperating valveRefrigerant gas cylinderfor R410A with siphonRefrigerant

6014RoHS PARTS LIST (RoHS compliant)14-1. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS111122182013109MUZ-GA25VA MUZ-GA35VAMUZ-GA25VAH MUZ-GA35

6112345678910111213141516171819202122232425262728GGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGGKNB065FDTHKNB073FDVH3RUBBERS/SET{9.52{6.35RA6V21-RC0J50-{3.0✕{

6214-2. OUTDOOR UNIT ELECTRICAL PARTS1061 4REACTORPOWER P.C. BOARDPOWER P.C. BOARDPOWER P.C. BOARDPOWER P.C. BOARDPOWER P.C. BOARDPOWER P.C. BOARDR.V.

63MUZ-GA25VA MUZ-GA35VA14-3. DRAIN SOCKETSymbolin WiringDiagramQ'ty/unitMUZ-GA25VA-RemarksParts No. Parts NameE2MUZ-GA35VA-E2E3 E4E12 838 7041GDR

HEAD OFFICE: TOKYO BLDG., 2-7-3, MARUNOUCHI, CHIYODA-KU, TOKYO 100-8310, JAPANCCCopyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO.,LTDDistributed in F

7ACCESSORIESAir inletAir outletDrain outletPipingDrain hose(back and side)1Drain socket 12Quick clean kit 1MUZ-GA25VA -E1MUZ-GA35VA -E1–1MUZ-GA25VAH -

8Single phase230V,50Hz1,890103.60.24KNB065FDTH500 V-W 1.88RA6V21-ABWHT-BLK 347 BLK-RED 281800o550o285314681010.85 320 (NEO22)Cooling2.5 (0.9-3.0)1.

9ModelItemCurrent transformer Current transformer Smoothing capacitor Diode module Fuse