Mitsubishi MSZ-GA35VA Manuel de service

SERVICE MANUALCONTENTS1. TECHNICAL CHANGES ····································22. PART NAMES AND FUNCTIONS······················63. SPECIFICATION····

105OUTLINES AND DIMENSIONS1069800302.5500 Bolt pitch for installation15022.3Handle550280164.599.5170.523Service panelService port285344.544400Air inAi

11WIRING DIAGRAM6OUTDOOR UNITSYMBOLCT,CT761,CT781C63A,C63B,C63CC65DB61,DB65DSA61F61F71,F801IC801IPMSYMBOLL61L62,L63MCMFNR63,NR64RT61RT62RT64RT65SYMBOL

12OUTDOOR UNITMUZ-GA25VAH -E1SYMBOLCT,CT761,CT781C63A,C63B,C63CC65DB61,DB65DSA61F61F71,F801HIC801IPMSYMBOLL61L62,L63MCMFNR63,NR64RT61RT62RT64RT65R61,

13OUTDOOR UNITSYMBOLCT,CT761,CT781C63A,C63B,C63CDB61,DB65DSA61F61F71,F801IC801IPMLEVSYMBOLL61L62,L63MCMFNR63,NR64RT61RT62RT64RT65SYMBOLR61,R831R64A,R6

14OUTDOOR UNITMUZ-GA35VAH -E1SYMBOLCT,CT761,CT781C63A,C63B,C63CDB61,DB65DSA61F61F71,F801HIC801IPMLEVSYMBOLL61L62,L63MCMFNR63,NR64RT61RT62RT64RT65R61,

15REFRIGERANT SYSTEM DIAGRAM7OUTDOOR UNITUnit:mmOutdoorheatexchangerFlared connectionDefrostthermistorRT61DischargetemperatuerthermistorRT62Flared con

16ADDITIONAL REFRIGERANT CHARGE (R410A:g)Outdoor unit precharged85090014m2702707m006m005m0011m180180Model Refrigerant piping length (one way)Calculati

17PERFORMANCE CURVES8The standard data contained in these specifications apply only to the operation of the air conditioner under normal conditions.Si

18<How to operate fixed-frequency operation (Test run operation)> 1. Press EMERGENCY OPERATION switch to COOL or HEAT mode (COOL : Press once, H

192 Air flow : High speed3 Operational frequency : 65Hz(MUZ-GA25VA, MUZ-GA25VAH)88Hz(MUZ-GA35VA, MUZ-GA35VAH)(kgf/F [Gauge]) (MPa [Gauge]) 18 3215 205

21TECHNICAL CHANGESMUZ-A09YV - ➔ MUZ-GA25VA -MUZ-A09YVH - ➔ MUZ-GA25VAH -E1E1E1E1MUZ-A12YV - ➔ MUZ-GA35VA -MUZ-A12YVH - ➔ MUZ-GA35VAH -E1E1E1E11

20MSZ-GA25VA - : MUZ-GA25VA - MUZ-GA25VAH -E1E1E121 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 0.4

2121 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

2221 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

2321 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.

24PERFORMANCE 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

25ACTUATOR CONTROL9MUZ-GA25VA - MUZ-GA35VA -MUZ-GA25VAH - MUZ-GA35VAH -E1E1E1E1Discharge temperature thermistorIndoor coil temperature thermistorDef

2610SERVICE FUNCTIONSCHANGE IN DEFROST SETTING<JS> When the JS wire of the outdoor Inverter P.C. board is cut/ soldered, the defrost finish temp

27Outline of the functionThis air conditioner can memorize the abnormal condition which has occurred once.Even though LED indication listed on the tro

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

293. 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

3RefrigerationoilRefrigerantNew refrigerantR410AHFC-32: HFC-125 (50%:50%)Pseudo-azeotropic refrigerantNot includedA1/A172.6-51.41.55764Non combustible

30StartIndoor unit operates.Outdoor unit doesn't operate.Indoor unit doesn't receive the signal from remote controller.OPERATION INDICATORl

31ONOFF2.5-second OFF2.5-second OFFNOTE 1. The location of LED is illustrated at the right figure. Refer to 11-7.1.2. LED lights up during normal oper

3211-5. Trouble criterion of main partsPart name FigureCheck method and criterionOutdoor fan motor(MF)INNER FUSE (Only MUZ-GA25VA/H)152i : CUT OFF0

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

34Check of compressorDCheck of compressor windingECheck of compressor operation timeF● Disconnect the connector (CN61) between the compressor and inte

35Check of outdoor thermistorsGWhen OPERATION INDICATOR lamp flashes 6-time.The thermistors in the outdoor unit are abnormal.Measure the resistance be

36Check of outdoor fan motorIOutdoor fan motor does not operate. Is there voltage 230V AC between indoor terminal block S1 and S2?Replace the outdoo

37Check of power supplyJInverter does not operate.Check of outdoor fan motorIOutdoor fan motor does not operate.Does the voltage betweeneach terminal

38Outdoor unit does not operate at all, or stops immediately due to overcurrent.Check of LEV (Expansion valve)Check of current-limiting resistorK● Che

39Check 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

4-30 -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

40How to check mis-wiring and serial signal error (when outdoor unit does not work)OWhen OPERATION INDICATOR lamp flashes ON and OFF in every 0.5-seco

41Operation check of the solenoid valve.PDo you hear the operation sound(click sound) of the solenoid valveevery 5 seconds?Disconnect CN923 and measur

Electromagnetic noise enters into TV sets or radios42QReplace the antennas.Replace the coaxial cable.NoNoNoYesYesNoNoYesYesYesIs the distance between

43MUZ-GA25VA - MUZ-GA35VA -MUZ-GA25VAH - MUZ-GA35VAH -E1E1E1E1Back side of unit-20 -10 0 10 20 30 400102030405060708090100Temperature(:)Ambient temp

44Heater connector(CN722) Refer to 11-6.MR.V.coil(CN721)230V AC230V ACBack side of unitMUZ-GA25VAHMUZ-GA35VAH}MUZ-GA25VA - MUZ-GA35VA -MUZ-GA25VAH -

4512DISASSEMBLY INSTRUCTIONSOPERATING PROCEDUREPHOTOSPhoto 11. Removing the cabinet.(1) Remove the screw fixing the service panel. (See Photo 2.)(2) P

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

47OPERATING PROCEDUREPHOTOSPhoto 6Photo 7Defrostthermistor5. Removing outdoor fan motor(1) Remove the top panel, cabinet and service panel.(Refer to 1

4813PARTS LIST13-1. OUTDOOR UNIT STRUCTURAL PARTS AND FUNCTIONAL PARTS111122182013109MUZ-GA25VA - MUZ-GA35VA -MUZ-GA25VAH - MUZ-GA35VAH -E1E1E1E1345

4912345678910111213141516171819202122232425262728KNB065FDTHKNB073FDVH3RUBBERS/SET{9.52{6.35RA6V21-RC0J50-{3.0✕{2.0✕240{3.0✕{1.4✕800{3.0✕{1.4✕500MCMCLE

5Electronic scale for refrigerant chargingOutdoor unitRefrigerant gas cylinderoperating valveRefrigerant gas cylinderfor R410A with siphonRefrigerant

5013-2. OUTDOOR UNIT ELECTRICAL PARTS1061 4REACTORPOWER P.C. BOARDPOWER P.C. BOARDPOWER P.C. BOARDPOWER P.C. BOARDR.V. COILR.V. COILTHERMISTOR SETAMBI

51Outdoor unit {42 drain holeSoft vinyl chloride hose of25mm inside diameter.MUZ-GA25VA - MUZ-GA35VA -13-3. DRAIN SOCKETE1E1Symbolin WiringDiagramQ&ap

HEAD OFFICE: MITSUBISHI DENKI BLDG., 2-2-3, MARUNOUCHI, CHIYODA-KU, TOKYO100-8310, JAPANCCCopyright 2005 MITSUBISHI ELECTRIC ENGINEERING CO.,LTDDistri

6OUTDOOR UNITAir inletAir outletDrain outletPipingDrain hose(back and side)ACCESSORIES1Drain socket 12Quick clean kit 1MUZ-GA25VA -E1MUZ-GA35VA -E1–1M

7Single phase230V,50Hz1,8903.60.24KNB065FDTH500 V-W 1.88RA6V21-ABWHT-BLK 347 BLK-RED 281800o550o285314681010.85 320 (NEO22)32.613.41710Cooling2.5 (

8OUTDOOR UNITModelItemCurrent transformer Current transformer Smoothing capacitor Diode module Fuse

9NOISE CRITERIA CURVES490807060504030201063 125 250 500 1000 2000 4000 8000NC-60NC-50NC-40NC-30NC-20NC-70OCTAVE BAND SOUND PRESSURE LEVEL, dB re 0.000