Viessmann Vitocal 242-S Installation And Service Instructions Manual page 49

Electrical connection
Internal unit: Overview of connections
A
sYA sYS
F
(cont.)
B
sVA
X18
F23 F14
F3
X3 X2
N
1
1
3
4
6
7
8
9 1
E
18
F1
Installation sequence
X31
C
F4
F12 F0
F20
J3
F21 F13
F27
X24
J4
F8
F7
aVG
F6
F26 F11
F16
X1
D
12 V
P202
COM
COM
P203
43 V
F101
1
X25
X15
49