Haier 1U71S2SG1FA Service Manual

Also see for 1U71S2SG1FA: Installation manual Service manual Installation manual

Contents

1234U75S2SR2FA 4U85S2SR2FA 5U105S2SR2FAPMV_A●1 2 3 4 5 6 7 8CN33CN34CN9CN8MODULE COMELECTRONICCONTROL UNITTcLED11LED12M●250VAC T25AFUSE1CN16CN1CN2ON4321ONDISPLAYCOMM L NPowerCN3SW6 SW5WBRW UCOMPRESSORRVB WPMV_BMCN17 PMV_CMPMV_DMCN19PMV_REMY/G●To Indoor● Units E21 3Definition of SW61 2 3 4OFF OFF OFF OFFOFFOFF OFFONON ON ON ONCentralized ControlAddress=1Address=2Address=16------------------- ---- ---- ----Definition of SW5SW5-1SW5-2SW5-3SW5-4 SW5-5 SW5-6SW5-7SW5-8OFFRestrict of Max Current:ON→Less than 15A; OFF→Adjust by machine types4U75S2SR2FAFrequency Modify: ON→Available; OFF→Unavailable (Default)Definition of SW1SW1-1 SW1-2 SW1-3 SW1-4Normal Operating(Default)OFFOFF OFF OFFON OFF OFF OFFOFF ON OFF OFFOFF OFF ON OFFCompulsive HeatingCompulsive CoolingRated OperatingY/GTo IndoorUnits D21 3Y/GTo IndoorUnits C21 3Y/GTo IndoorUnits B21 3Y/GOR: Orange B: Black BL: Blue BR:BrownY/G: Yellow/Green R: Red W: WhiteTc: Condensing Temp. SensorTs: Compressor Suction Temp. SensorTa: Ambient Temp. SensorTd: Compressor Discharge Temp. SensorTe: Defrosting Temp. SensorTc1(a/b/c/d/e):Condensing Temp. Sensorfor Indoor Units a/b/c/d/e (Gas Pipe)Tc2(a/b/c/d/e):Condensing Temp. Sensorfor Indoor Units a/b/c/d/e (Liquid Pipe)*●The dashed part is optional.RRRRONOFFONY/GDISPLAYON4321CN2 CN3CN1CN4 SW14321 51 2 3 4ONW B0150526299PMV_EMCN20OFFOFFONON OFFON4U85S2SS2FAY/GTo IndoorUnits A21 3RC2C1A BTo CenterControllerOFF OFF ONOFF Time Defrost ValidMODULEAC-L AC-NUW VCN10BWOFFOFFONONONCooling &Heating(Default)Cooling OnlyAvailableHeating OnlyAvailableNote:The CN20 CN24-E、CN25-E and terminal blockE are only used on 5U105S2SS2FAVdcPGNDVccVSPFBSW7CN15CN14 CN24 CN25Ts Ta Td Te E D C B A E D C B ACN23CN26CN27DC FANMOTORCN11CN22MODULE POWERN-OUTL-OUTAC-NPECN32CN315U105S2SS2FAWBL-OUTN-OUTBWCN11TC1 TC2HPCN12 CN13LPCN18AC-LCN21CRANKCASEHEATERCHASSISHEATING WIRECON9CN54-WAY VALVECON8LN CN4CN35PEBWQuiet Operation: ON→Available; OFF→Unavailable (Default)CN43CN44CN41