Viessmann Vitocal 300-G Installation And Service Instructions Manual page 18

Preparing for installation
Primary circuit, type WW 301.A, WWC 301.A...
With well pump connection 230 V~
2
211.1
X1.
X2.N
X3.3
X1.
X3.4
X3.9
X1.
X3.8
Well pump on-site connection 400 V~
2
211.1
X1.
X2.N
18
(cont.)
26
200 W
L
M
UP
1~
N
L1 N
K1
M
UP
1~
230 V; 2 mA
230 V; 0.15 A
230 v; 0.15 A
26
200 W
L
M
UP
1~
N
L1 L2 L3
K1
M
UP
3~
15
26
23
21
19
15
26