Haier HPU-42CV03 Service Manual page 60

11.3 Printed diagram
For indoor unit
No.
Commercial Air Conditioner
Port
1 Fuse T3.15A 250VAC
2 CN2 Central controller B2B-XH-R
3 CN3 Live wire (L)-250
4 CN4 Neutral wire (N)-250
5 CN5 Primary side of transformer RTB-1.5-2P
6 CN6 Second side of transformer B3B-XH-A
7 CN7 Sensor B4B-XH-A
8 CN10 Operation panel B4B-XH-A
9 CN11 Low speed of fan motor -250
10 CN12 Middle speed of fan motor -250
11 CN13 High speed of fan motor -250
12 CN19 Negative ion generator (L)-187
13 CN20 Negative ion generator (N)-187
14 CN22 Neutral wireof fan motor-250
15 CN23 Electrical heater (L)-250
16 CN24 Electrical heater (N)-250
17 CN25 Communication between indoor and outdoor units -187
Function
59
Model: HPU-42CV03
HPU-42HV03