Viessmann VITOCAL 350-A - Page 153

Electrical installation scheme
230 V/50 Hz
212.3
X2.N
X1.
ZP
37
50W
94
20
211.2
X2.N
X1.
UP/A1
6
211.4
X2.N
X1.
5
UV
130W
130W
L3
N
L2
L1
137
4
3 / N / PE
400 V, 50 Hz
136
X2.N
211.3
224.4
2
Low voltage
F6
STS
31
1
2
145
NTC 10 kΩ
LON
98
121 / 122 / 123
F0
ATS
3
67
NTC 10 kΩ
1
2
3
145
8
145
2
1
145
KM BUS distributor
HC A1
91
95
/
99
/
120
2
X3.4
X3.3
15
X1.
M
1~
M
1~
M
1~
1
3
2
1
3
2
1
3
2
ID: 4605416_1304_03
Note
Secondary pump
6
, 3-way diverter valve
5
, cylinder temperature
sensor STS
eQ
and instantaneous heating water heater
4
are pre-
fitted and wired.
Vitocal 200-S/222-S/242-S
(cont.)
158
VIESMANN
System examples
5
5822 472 GB