24
C29
X3
T1T2T3
X4
TR2
X7
X1
CN3
X12
X10
X14
X13
CN4
H12
F1
X111
H4
X2
T6 T7
H11
T00
T00
T00 T00 T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00 T00 T00 T00 T00 T00 T00 T00 T00 T00 T00 T00 T00 T00 T00 T00
T00
T00
T00 T00 T00 T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00 T00
T00
T00
T00
T00
T00
T00
T00
T00
T00
T00T00
T00
T00
T00
T00
T00
CN3
X7
X3
X1
C
B E
%
4321
A D
F
L
N
X2
X11
T00
T00
T00
X11
X13
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)
X11 WLAN module (internet inside)
X13 Power supply WLAN module
(internet inside)
Installation sequence
Electrical connections
(cont.)
5837146