Viessmann Vitocal 300-G Installation And Service Instructions Manual page 26

Preparing for installation
Primary circuit, type WW 301.A + BWS 301.A...
Well pump on-site connection 230 V~
2
211.1
X1.
X2.N
X1.
X2.N
X3.1
X2.N
26
224.2
K1
(cont.)
200 W
M
UP
1~
200 W
M
UP
1~
L1 N
K2
K3
M
1~
UP 26
15
25