Friedrich M09YJ - Piping Diagrams; M09 YJ; M12 YJ Models

2. Piping Diagrams
Model : M09YJ / M12YJ
Indoor Unit Outdoor Unit
Liquid Side
Th2
2-Way Valve
EEV
Th1 Th4
Heat
Exchanger
(Evaporator)
Heat
Exchanger
(Condenser)
Th7
Th3
Gas Side
3-Way Valve
Accumulator
Th6
Reversing Valve
Compressor
Th5
Cooling
Heating
LOC. Description PCB Connector
Th1 Thermistor for suction air temperature
CN-TH1(Indoor)
Th2
Thermistor for evaporator inlet temperature
Th3
Thermistor for evaporator outlet temperature
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
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