Viessmann Vitocal 222-G User Manual page 153

Vitocal 200-S/222-S/242-S
Electrical installation scheme
2
X3.3
X3.4
X1.
212.3
X1.
X2.N
211.2
X1.
X2.N
211.4
X1.
X2.N
211.3
224.4
X2.N
2
3
F0
2
1
F6
2
145
1
LON
98
8 KM BUS distributor
3
5
145 2
1
3
145
2
1
3
145
2
1
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.
VIESMANN
158
(cont.)
94
136
67
NTC 10 kΩ
ATS
NTC 10 kΩ
STS 31
121 / 122 / 123
2
HC A1 91 95
1
99 / 120
20
137
3
/
15
50W
M
37
ZP
1~
130W
M
6
UP/A1
1~
130W
M
UV 5
1~
L1
400 V, 50 Hz
L2
3 / N / PE
L3
N
4
System examples