Viessmann Vitodens 200-W Series Installation Instructions Manual page 47

Electrical Connections
Accessories electrical connections
See the following pages for connection to the individual accessories.
MAIN POWER SUPPLY
120V, 60HZ, 12A
N G L
MAIN
DISCONNECT
SWITCH
L2
L1
120/230 Transformer
P1
P2
A
120VAC
WALL
RECEPTACLE
LON
LON LON X
X1 X2
7
Fig. 40
(continued)
Power/Pump module
L
L2 L1 G N
145 145
5
X4 6 5
7
X3
X8.10
X8.11
X
8
Boiler Control Board GC131
X
9
X11
LON
KMK
N L N L N L N L N
40 20A 21 20 50
28
40 20A 21 20
50 L G N
M M
M M
120VAC
120VAC 120VAC 120VAC
120VAC
DHW
FAULT
DHW BOILER
SYSTEM
ALARM
PUMP PUMP PUMP RE- -CIRC.
OUTPUT
PUMP
2 1 20
3
4 2 1
100 35 20 96
Control Connections
1 2 3 1 2 3 1 2 3
143 144 145
143 144 145
1 2 3 1 2 3 1 2 3
- - +
EXTERNAL
EXTERNAL
SIGNAL
DEMAND
0- -10 V
L
N 40
230 VAC
40
47