4.2  :outdoor unit 
4.2.1 HSU-18HVA103/R2(DB)unit 
Connectors 
PCB(1) (Control PCB) 
1) CN1,CN2 Connector for power N and L 
2) CN4 Connector for ground 
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 thermistors 
(CN11: outdoor air,CN10: heat exchanger, CN13 :discharge pipe) 
8)CN14  Connector for communicate between the control board and    the module    board 
9) CN23 ,CN24 Connector for the capacitance of    fan motor 
10)CN3 Connector for communicate between    the indoor    board and the outdoor    board 
 
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 
 
Note: Other Designations 
PCB(1) (Control PCB) 
1) FUSE 1, Fuse (25A,250VAC) 
2)LED 1    keep light representative normal ,if keep flash interval    representative trouble Alarm 
3)ZE 1,ZE2,ZE3,ZE4,ZE5  Varistor 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
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