Viessmann Vitopend 100-W Installation And Service Instructions Manual page 24

Installation sequence
Electrical connections
CN3
X7
X1
1 2 3 4
A B
C
CN3 Ext. extension AUX 900101 A
(accessories)
X1
Cylinder temperature sensor E
(only for gas system boilers)
X2
Power supply F (230 V, 50 Hz)
A power cable with plug is con-
nected in the delivered condition.
X3
Gas pressure switch D (acces-
sories)
X7 Connecting cable (accessories)
with
B Room/outside temperature
sensor (accessories part no.
7554227)
or
C OpenTherm room tempera-
ture controller (accessories,
e.g. Vitotrol 100 OT and
Vitotrol 100 UTDB)
24
(cont.)
X11
X3
X3 X12
X4
X1
X10
X13
X13
%
D E
X111
X11 WLAN module (internet inside)
X13 Power supply WLAN module
(internet inside)
F1
X2
T3 T2 T1
X2 LN
F