Electrical Connections - Viessmann Vitodens 050-W Installation And Service Instructions Manual

Electrical connections

OT- OT+
A 4 3 2 1
C
B
A Terminals on underside of appli-
ance
B Outside temperature sensor
C Vitotrol 100 or on-site room temper-
ature controller with LV switching
contact and low transition resist-
ance
Remove jumper when connecting.
Separate installation instruc-
tions
Note: the terminal C is not suitable
for 230V room thermostats.
Installation sequence
Information on connecting
accessories
When connecting accessories
observe the separate installation
instructions provided with them.
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