Haier HSU-18,22HVA103/R2(DB) Service Manual page 17

4.2.2 HSU-22HVA103/R2（DB）unit
Connectors
PCB(1) (Control PCB )
1) CN2,CN3 Connector for power N and L
2) CN22 Connector for filter board
3) CN8 Connector for DC POWER 15Vand 5V to the module board
4) CN7 Connector for capacitance board
5) CN9 Connector for fan motor
6) CN20 Connector for four way valve coil
7) CN10,CN11,CN13Connector for temperature sensor thermistors
(CN11: Outdoor ambient,CN10: Frost-removing, CN13 : Exhaust)
8) CN14 Connector for communicate between the control board and the module board
9) CN1 Connector for communicate between the indoor and the outdoor units
PCB(2) (module PCB)
CN10 Connector for the DC power 5V and 15V form the control PCB
CN11 Connector for communicate between the control and the module board
CN1,CN2 Connector for power L and N
LI (CN3),LO(CN4) Connector for reactor
P( CN8), N(CN9) Connector for capacitance board
CN5，CN6，CN7 Connector for the U, V, W wire of the compressor
PCB(3) (Filter PCB)
1) P506,P507 Connector for power N and L
2) P508,P509 Connector for power N and L to indoor
3) P505,RL501 Connector for power N and L to module
3) P501,P503 Connector for capacitance anode
4) P502,P504 Connector for capacitance cathode
5) CN501 Connector for control PCB
3) P512 Connector for GNG
Note: Other Designations
PCB(1) (Control PCB)
1) FUSE 1, Fuse (3.15A,250VAC)
2)LED 1 keep light representative normal ,if keep flash interval representative trouble
3)ZE 1,ZE2,ZE3,ZE4,ZE5 Varistor
VA1
Alarm
R2(DB)
16