Haier HSU12 - 4. Wiring Diagrams; 4.1 Indoor Unit Wiring

Domestic Air Conditioner
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4.1᧶Indoor unit Connectors
Connectors
PCB(1) (Control PCB)
1) CN26 Connector for fan motor
2) CN11 Connector for STEP motor
3) CN8 Connector for heat exchanger thermistor and Room temperature thermistor
4)CN27 Connector for fan feedback
5)CH1 Connector for power L wire
6)CON2 Connector for power N wire
7) CON7 Connector for communicate wire
8) CN30 Connector for transformer input
9) CN31 Connector for transformer output
10) CN32 Connector for display board
Note: Other designations
PCB(1) (INdoor Control PCB)
1) CN48 Connector for Forced operation ON / OFF switch
2) J1 Select 25 or 35
3) LED1 communicate display light
4)RV1 Varistor
5) FUSE1 Fuse 3.15A/250VAC
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FOR 12K
9
HSU12/18VHJ(DB)