Single Zone Service Manual - HM12YJ

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2. Piping Diagrams
Indoor Unit Outdoor Unit
Heat
Exchanger
(Evaporator)
Heat
Exchanger
(Condenser)
Compressor
Accumulator
Gas Side
3-Way Valve
2-Way Valve
Liquid Side
Cooling
Heating
Reversing Valve
EEV
Th1
Th6
Th3
Th7
Th4
Th5
LOC. Description PCB Connector
Th1 Thermistor for sunction air temperature CN-TH1(Indoor)
Th3 Water level sensor (Option) CN-TH2(Indoor)
Th4 Thermistor for evaporator middle temperature CN-TH3(Indoor)
Th5 Thermistor for discharge pipe temperature CN-TH2(OUTDOOR)
Th6 Thermistor for condensing temperature CN-TH1(OUTDOOR)
Th7 Thermistor for outdoor air temperature CN-TH1(OUTDOOR)
※ EEV : Electronic Expansion Valve