21
of 53
Main voltage
This shows the connections to the high voltage connector on the control board:
Pin No.
Row Z
Row D
4
Internal fan 2
-
6
-
Not used
8
Internal fan 1
-
10
-
External fan 1
12
Not used
-
14
-
External fan 2
16
Auto transformer 230V
-
18
-
Heater
20
Auto transformer 180V
-
22
-
Compressor crankcase heater
24
Auto transformer 120V
-
26
-
Compressor
28
Auto transformer common
-
30
-
Mains common
32
Mains line
-
Summary of Contents for DCU22-2000DH
Page 51: ...51 of 53 12 Appendix Dimension...
Page 52: ...52 of 53 Wiring diagram...
