Connector Wiring diagrams   
 
       
Domestic air conditioner 
6.  Printed Circuit Board Connector Wiring Diagram
 
 
 
 
 
 
 
PCB (1) (Indoor control PCB) 
Note: Other designations 
1) SW1    Connector for Emergency operation ON / OFF switch 
2) SW2    1 Select remote code A or B, 
  2 Select room card able or disable⩖
3,4 Select  eeprom  code  23ʙ26ʙ33 and 35 ,
 
         3) RV1  Varistor 
4) FUSE1    Fuse 3.15A/250VAC 
Series  PCB connector  Connect with load 
1 CN21 
Connector for power N and L 
2 CN52 
3 CN27 Connector for ground 
4 CN23 
Connector for communication between indoor and outdoor 
unit
5 CN6 Connector for thermistors 
6  CN9  Connector for fan motor 
7 CN7 Connector for display 
8  CN5  Connector for up-down stepmotor 
9 CN11 Connector for left-right stepmotor 
10  CN2  Connector for wiring-control 
11  CN51  Connector for room card 
12  CN34  Connector for wifi-control 
13 CN1 Reserved connector 
 
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