Viessmann Vitocal 222-G User Manual page 44

Vitocal 222-G/242-G/333-G/333-G NC/343-G
Electrical installation scheme
2
X3.9
X1.
X3.8
212.2
X1.
X2.N
212.3
X1.
X2.N
211.5
X1.
X2.N
211.3
224.4
X2.N
225.3
X1.
X2.N
225.2
225.1
X1.
X2.N
ID: 4605509_1304_01
Note
Instantaneous heating water heater 4 is prefitted and wired.
System examples
B
136
137
A
74
(cont.)
16A
20
230 V; 0.5 A 21
100 W
M
UP A1 96
1~
50 W
M
ZP 37
1~
L1
N NC-Box
40
qCP
AM
L1
400 V, 50 Hz
L2
3 / N / PE
L3
N
4
OPEN
M
M2
77
1~
CLOSE
100 W
M
UP M2 76
1~
VIESMANN
49
2