15
2.
3.
4x
2x
1.
Fig. 11
!
Please note
Electronic assemblies can be damaged by elec-
trostatic discharge.
Prior to commencing any work, touch earthed
objects such as heating or water pipes to dis-
charge static loads.
Electrical connections
Information on connecting accessories
When connecting accessories observe the sep-
arate installation instructions provided with
them.
X7
X20
A B
4 3 2 1
OT
C
X21
L N 1 L N
?
F
E
D
X1
96
Fig. 12
A
Only for weather-compensated mode:
Outside temperature sensor (accessories)
B
OpenTherm device
Remove jumper
D
when making this connection.
C
Connecting cable
D
Jumper
E
Power supply (230 V, 50 Hz)
See page 16.
F
Vitotrol 100 or on-site room temperature controller
(230 V switched input)
Remove jumper
D
when making this connection.
Separate installation instructions
Installation sequence
Opening the control unit enclosure
5697789
Installation
Summary of Contents for Vitodens 111-W
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