Connector Wiring Diagram
Domestic Air Conditioner
8
4.Printed Circuit Board Connector Wiring Diagram
4.1˖Indoor unit Connectors
Connectors
PCB(1) (Control PCB) For AS18ZS2ERA
1) CN9 Connector for fan motor
2) CN6 Connector for heat exchanger thermistor and Room temperature thermistor
3) CN5 Connector for UP&DOWN STEP motor
4) CN21 Connector for power N wire
5) CN52 Connector for power L
6) CN27 Connector for power GRN
7) CN7 Connector for display board
8) CN23 Connector for communicate between the indoor board and the outdoor board
9) CN34 Connector for long-range control
Note: Other designations
PCB(1) (INdoor Control PCB)
1) CN14 Connector for Forced operation ON / OFF switch
2) SW2 1 Select remote code A or B,2 Select room card able or disable , 3-4 Select 23,26,33,or 35 ,
3) RV1 Varistor
4) FUSE1 Fuse 3.15A/250VAC
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