Mitsubishi MSZ-GA60 VA Manual de servicio

SERVICE MANUALCONTENTS1. TECHNICAL CHANGES ··································· 32. PART NAMES AND FUNCTIONS ····················· 63. SPECIFICATION ··

10MUZ-GA60VA -E3

11MUZ-GA71VA BLKCN90212CN90312TAB4X64 3R64A R64BRED2314LYLWYLWRED230V~12-24VCN912CN663WHTBLUNOISEFILTERP.C.BOARDBRNTO INDOORUNITCONNECTINGREDS3RT6521C

12REFRIGERANT SYSTEM DIAGRAM7MUZ-GA50VA MUZ-GA60VA -E1Unit: mmOutdoorheatexchangerFlared connectionDefrostthermistorRT61Dischargetemperaturethermis

13MUZ-GA71VA Unit: mmOutdoorheatexchangerFlared connectionDefrostthermistorRT61DischargetemperaturethermistorRT62Flared connectionStop valveStop va

14Refrigerant PipingMax. length AMax. Heightdifference BIndoorunitOutdoor unitMAX. REFRIGERANT PIPING LENGTH and MAX. HEIGHT DIFFERENCERefr

15PERFORMANCE CURVES8The standard specifications apply only to the operation of the air conditioner under normal conditions. Since operating condi-tio

16MUZ-GA71VACapacity correction factorsInput correction factorsInput correction factorsCapacity correction factorsCorrection of Cooling capacityThe op

17NOTE: The unit of pressure has been changed to MPa on the international system of units (SI unit system). The conversion factor is: 1 (MPa [Gauge

18Outdoor unit current (A)Outdoor unit current (A)Ambient temperature(°C)Ambient temperature(°C)Outdoor unit current (A)Ambient temperature(°C)MUZ-GA7

19MSZ-GA50VA: MUZ-GA50VA INDOOR INDOORCAPACITY:5.0(kW)INPUT:1460(W)SHF:0.6521OUTDOOR DB(°C)25 27 30WB(°C)Q SHC SHF Q SHC SHF Q SHC SHF Q SHC SHFINP

2Revision A : • RoHS PARTS LIST has been added. • Failure mode recall function (11-2.) has been changed. • Check of HPS (11-6.) has been corrected.Rev

20INDOOR INDOORCAPACITY: 5.0(kW)INPUT: 1460(W)SHF: 0.6535OUTDOOR DB(°C)40 43 46WB(°C)Q SHC SHF Q SHC SHF Q SHC SHF Q SHC SHFINPUT INPUT INPUT INPUT

21PERFORMANCE DATA COOL operation at Rated frequencyNOTE Q : Total capacity (kW) SHF : Sensible heat factor DB : Dry-bulb temperature SHC :

22INDOOR INDOORCAPACITY:6.0(kW)INPUT:1930(W)SHF:0.6435OUTDOOR DB(°C)40 43 46WB(°C)Q SHC SHF Q SHC SHF Q SHC SHF Q SHC SHFINPUT INPUT INPUT INPUTDB(

23INDOOR INDOORCAPACITY:7.1(kW)INPUT:2420(W)SHF:0.6321OUTDOOR DB(°C)25 27 30WB(°C)Q SHC SHF Q SHC SHF Q SHC SHF Q SHC SHFINPUT INPUT INPUT INPUTDB(

24INDOOR INDOORCAPACITY:7.1(kW)INPUT:2420(W)SHF:0.6335OUTDOOR DB(°C)40 43 46WB(°C)Q SHC SHF Q SHC SHF Q SHC SHF Q SHC SHFINPUT INPUT INPUT INPUTDB(

25CAPACITY:5.9(kW)INPUT:1630(W)OUTDOOR WB(°C)3.72 1099 4.48 1318 5.25 1487 6.02 1606 6.79 1707 7.49 1758 8.26 17913.54 1183 4.25 1403 5.02 1555 5.7

269ACTUATOR CONTROLMUZ-GA50VAMUZ-GA60VAMUZ-GA71VARelation between main sensor and actuator.9-3. RELATION BETWEEN MAIN SENSOR AND ACTUATOR9-2. R.V. COI

27SERVICE FUNCTIONS10TROUBLESHOOTING11 3. Troubleshooting procedure1) First, check if the OPERATION INDICATOR lamp on the indoor unit is flashing on

28Outline of the functionThis air conditioner can memorize the abnormal condition which has occurred once.Even though LED indication listed on the tro

29 2. Flow chart of the detailed outdoor unit failure mode recall functionOperational procedureNOTE1. Make sure to release the failure mode recall

31TECHNICAL CHANGESRefrigerationoilRefrigerantNew refrigerantR410AHFC-32: HFC-125 (50%: 50%)Pseudo-azeotropic refrigerantNot includedA1/A172.6-51.41.5

303. Outdoor failure mode tableOFF None (Normal)2-time flash3-time flash4-time flash5-time flash6-time flash7-time flash8-time flashLighting LightingL

3111-time flash• Check the connecting wire between outdoor electronic control P.C. board and power board.• Replace the power board.• Check t

3211-3. INSTRUCTION OF TROUBLESHOOTINGStartIndoor unit Operates.Outdoor unit does not operate.Indoor unit does not receive the signal from remote con

3311-4. TROUBLESHOOTING CHECK TABLE LED1(Red) LED2(Yellow)Lightning Twice Outdoor power system• Check the connection of the compressor connecting wir

34Primary current protectionSecondary current protectionHigh-pressure protectionDefrosting in cooling3 timesLightingDischarge temperatureprotection• C

35Part name Check method and criterion FigureDefrost thermistor (RT61)Ambient temperature thermistor (RT65)Outdoor heat exchanger temperature thermist

36 Check of power supplyOutdoor unit does not operate. 11-6. TROUBLESHOOTING FLOWTurn ON power supply.NoYesYesNoNoYesNoYesYesNoReplace the power board

37 How to check mis-wiring and serial signal error (when outdoor unit does not work)B• When unit cannot operate neither by the remote controller

38 Check of R.V. coilNoYesNoYesNoYesNoYesNoYes1. Disconnect the lead wire leading to the compressor.2. 3 minutes after turning ON the power supply,

39When OPERATION INDICATOR lamp flashes 5-time.• When heating, room does not get warm.• When cooling, room does not get cool. Check of LEVNoYesNoYes

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

40 Check of outdoor fan motor• Fan motor does not operate or stops operating shortly after starting the operation. Check of outdoor thermistors• W

41 Check of HPS• When the operation frequency does not go up from lowest frequency.MUZ-GA60VA-E3MUZ-GA71VAInfinity0ΩNoYes1. Disconnect the connector

42 Electromagnetic noise enters into TV sets or radiosJReplace or repair the antenna.Replace or repair the coaxial cable.NoNoNoYesYesNoNoYesYesYes

43-20-10 0 1020304010090807060504030201000 1020304050607080200180160140120100806040200Resistance (kΩ)Resistance (kΩ)Temperature (°C)Temperature (°C)De

44{CN912R.V. coil 230 VAC230 VACInput230 VACOutput{CN901To electroniccontrol P.C. boardMUZ-GA50VAMUZ-GA60VAMUZ-GA71VAF64 FUSET2AL250VF911 FUSET1AL250V

45MUZ-GA50VA MUZ-GA60VA MUZ-GA71VA3. Outdoor power board325-370 VDCOutput(Red)(White)Connect to the compressorVoltage among phases: 5 V to 180

4612DISASSEMBLY INSTRUCTIONSMUZ-GA50VA MUZ-GA60VA MUZ-GA71VANOTE: These photos are MUZ-GA71VA. Other models are almost the same as MUZ-GA71VA.Tu

47OPERATING PROCEDUREPHOTOS2. Removing the inverter assembly, inverter P.C. board and power board (1) Remove the top panel, cabinet and service panel

485. Removing outdoor fan motor(1) Remove the top panel, cabinet and service panel. (Refer to 1.)(2) Remove the back panel. (Refer to 1.)(3) Disconn

49OPERATING PROCEDUREPHOTOSPhoto 8Brazed parts of 4-way valve6. Removing the compressor and 4-way valve(1) Remove the top panel, cabinet and service p

55Electronic scale for refrigerant chargingOutdoor unitRefrigerant gas cylinderoperating valveRefrigerant gas cylinderfor R410A with siphonRefrigerant

50419911310 122567816142022232425293031313PARTS LIST (non-RoHS compliant)MUZ-GA50VA MUZ-GA60VA MUZ-GA71VA13-1. OUTDOOR UNIT STRUCTURAL PARTS,

51MUZ-GA50VA MUZ-GA60VA MUZ-GA71VA13-1. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTSSymbolin WiringDiagramQ'ty/u

52419911310 122567816142022232425293031314RoHS PARTS LIST (RoHS compliant)MUZ-GA50VA MUZ-GA60VA MUZ-GA71VA14-1. OUTDOOR UNIT STRUCTURAL PARTS,

53MUZ-GA50VA MUZ-GA60VA MUZ-GA71VA14-1. OUTDOOR UNIT STRUCTURAL PARTS, ELECTRICAL PARTS AND FUNCTIONAL PARTSSymbolin WiringDiagramQ'ty/u

MUZ-GA50VA MUZ-GA60VA MUZ-GA71VA 14-2. ACCESSORYSymbolin WiringDiagramQ'ty/unitRemarksPart No.No.RoHSPart NameMUZ-GA50 VA -E1MUZ-GA60 VA -MUZ-G

6PART NAMES AND FUNCTIONS2Air inletPipingAir outlet(back and side)Drain hoseDrain outletACCESSORIESDrain socketDrain cap Ø33 12E1E2E3Single phase230V,

7NOISE CRITERIA CURVES490807060504030201063 125 250 500 1000 2000 4000 8000NC-60NC-50NC-40NC-30NC-20NC-70BAND CENTER FREQUENCIES, HzAPPROXIMATETHRESHO

85OUTLINES AND DIMENSIONSUnit: mmMUZ-GA50VAMUZ-GA60VAMUZ-GA71VA30°35°155901984051529966345133036085043050080121840Open as a rule500 mm or more ifthe f

9WIRING DIAGRAM6R64BYLW230V~12-24VCN912CN663WHTBLUNOISEFILTERP.C.BOARDBRNTO INDOORUNITCONNECTINGREDS3RT6521CN6113GRN/YLW5PFCGRNLD9POWER BOARDRT6421CN3