Viessmann Vitocal 222-G User Manual page 88

Vitocal 300-G/350-G
Electrical installation scheme, external heat source demand
wP
KO1B/KO2B/KW6B
N
40
L
2
3
1
X3.3
1
X3.2
X3.1
X3.7
145
X3.6
LON
A1 21
A2 22
A1 13
A2
14
ID: 4605352_1304_03
Electrical connection changeover "Heating/cooling" via switching module on cooling circuit M2
qCP
AM heat/cool
c
d
e
f
1
R1
2
3
4
5
6
7
R6 8
9
ID: 4605352_1304_03
System examples
(cont.)
230 V/50 Hz
KTS
ATS
222.4
2
K1 28
224.7
2
K2
29
M
qCW
STA
1~
M
qCW
STA
1~
wQ
EA1
L
40
N
N
40A
L
P
157 Ö
S
2
0-10V
1
6
DE3
5
4
DE2
3
2
DE1
1
2
145
1
5
3
2
1
N
N
230 V, 50 Hz
230 V/50 Hz
211.5 2
TA
RTH qCQ
RF
VIESMANN
4
93