Printed circuit board connector wiring diagram
11 Domestic air conditioner
6. Printed circuit board connector wiring diagram
Connectors
PCB (1) (Control PCB) For 1U09BR4ERA
1) CN1, CN2 Connector for power N and L
2) CN3 Connector for ground
3) CN22 Connector for DC POWER 15Vand 5V to the module board
4) CN9, CN8 Connector for CN8,CN9 on the module board
5) CN21 Connector for fan motor
6) CN10 Connector for four way valve coil
7) CN19 Connector for thermistors
8) CN23 Connector for communicate between the control board and the module board
9) CN26, CN24 Connector to P and N of the module board
10) CN4 Connector for communicate between indoor and outdoor unit
PCB (2) (Module PCB) For 1U09BR4ERA
CN10 Connector for the DC power 5V and 15V form the control PCB
CN11 Connector for communicate between the control board and the module board
P (CN1), N (CN5) Connector for capacitance board
LI (CN7), LO (CN6) Connector for reactor
CN2, CN3, CN4 Connector for the U, V, W wire of the
compressor
Notes: Other Designations
PCB (1) (Control PCB)
1) FUSE 1, (25A, 250VAC); FUSE 2(1A, 250VAC)
2) LED 1 Keep light representative normal, if keep flash interval representative trouble Alarm
3) RV1, RV2, RV3 Varistor
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