Haier AE122FCBKA [83/126] Commercial air conditione

Haier AB092FCBIA [83/126] Commercial air conditione
Commercial Air Conditioner Model: AU242FHBIA,
AU482FIBIA, AU48NFIBJA
8.6 Dip switch and the ports on PCB functions
AU242FHBIA ports on PCB:
Ports Ports name Wiring method
CN1 IPM-OUT IPM output control line
CN2 IPM-POWER To 4-way 15V power source
CN3 +310V ,GND
To 310V DC power source
CN4 Fan motor port To fan motor
CN5 SERIAL 857 detecting serial port
CN6
Four-way valve port To four-way valve
CN7 Live line of electric heater To live line
CN8
Neutral line of electric
heater
To neutral line
CN9 Live line of power source To live line
CN10
Neutral line of power
source
To neutral line
CN11 Live line of power source To live line
CN12 Earthing line To earthing line
CN13 Communication port To communication line
CN14 Sensor port
Including defrosting, discharging, ambient, air
return, evaporating temp. sensors
CN15 EEV port To EEV
CN16 High pressure switch port To high pressure switch
CN19 SERIAL 846 detecting serial port, no used
CN22 Spray valve port To spray valve
CN23 Oxygen generator port To oxygen generator (optional)
CN27 Indicator board To exterior testing device, showing failure code
CN30
Compressor current
detecting
To compressor current detecting board
CN32
+15VˈGND
————
CN34 Low pressure switch port To compressor low pressure switch
CN35 Unloading port To unloading valve
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