Haier H-MRV Series - AU242 FHBHA PCB Ports Name and Functions

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AU242FHBHA PCB ports name and functions:
Port name Functions
CN1 IPM-OUT IPM output control wire
CN2 IPM-POWER To 4-way 15V power supply
CN3 +310V ,GND
To 310V DC power supply
CN4 Fan motor port To fan motor
CN5 heater To heater connector
CN6 4-way valve port To 4-way valve
CN9 Power supply live wire To live wire
CN10
Power supply neutral wire
port
To neutral wire
CN11 Power supply live wire To live wire
CN12 Earthing wire To earthing wire
CN13 Communication wire port To communication wire
CN14 Sensor port
Including defrost, discharging, ambient temp.,
suction, evaporating temp. sensor
CN15
Electronic expansion
valve (EEV) port
To EEV
CN16 High pressure switch port To high pressure switch
CN19 SERIAL Serial detecting port of chip 846
CN22 Spray valve port To liquid spray valve
CN23 Oxygen generator port Only used to the unit with oxygen generator
CN30
Compressor current
detecting port
To compressor current detecting board
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