Haier HSU12 Service Manual page 19

HSU12/18VHJ(DB)
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) CN16 Connector for electric expansion valves
5) CN21 Connector for DC fan motor
6) CN10 Connector for four way valve coil
7) CN17 CN18 CN19 CN20 Connector for thermistors
(CN20: outdoor air CN19: heat exchanger CN18 :SUCK thermistors CN17 :discharge pipe
8) CN23 Connector for communicate between the control board and the module board
9) CN25 CN8 Connector for the L N to the module board
10) CN4 Connector for communicate between the indoor board and the outdoor board
11) CN26 Connector for capacitance anode
12) CN24 Connector for capacitance cathode
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
: 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
16
Domestic Air Conditioner