Viessmann Vitodens 200-W 19 WB2B Series, Руководство по установке

Страница: 42 / 64

Control Connections
42
Electrical Connections
(continued)
Power/Pump module electrical connectors
Legend
40
- Power supply
20A
- System pump
sA - DHW pump
sÖ
- Boiler pump
sK - DHW recirculation pump
50
- Fault alarm output
143
- External blocking terminals 2-3
External demand terminals 1-2
External heating program
changeover terminals 1-2
The allocation of the function
“external heating program
changeover” is set via coding
address ’91’
144
- External 0-10V signal
145
- KM BUS to boiler control board
See Vitodens 200-W WB2B
Start-up/Service Instructions
for applicable system coding
information.
5
3
6
9
2
9
7
v
1
.6
N L
143
28
L G N L2
N L N L N L
L1 G N
50
20 21
20A 40
N
L
120/230
Transformer
145 144 143
Power/Pump Module
1 2 3 1 2 3
1 2 3
1 2 3
145
144
1 2 3 1 2 3
50
20 21 20A 40
Fig. 36