Au242Fhbha Pcb Ports Name And Functions - Haier H-MRV Series Service Manual

AU242FHBHA PCB ports name and functions:

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