Viessmann Vitotronic 100 GC1 Installation And Service Instructions Manual page 41

Connection of combustion air devices (contd.)
Installation – Vitotronic 100, GC1
Connection of the combustion air
damper
See damper manual for correct
installation.
Assure that the combustion air
damper is suitable for this application.
E
1. Disconnect power to control and
burner.
2. Make connection as shown in
the diagram.
A Combustion Air Device Adaptor
in connection enclosure
B Relay 120 VAC coil - field supplied
C Combustion air damper
D End switch rated for 120 VAC
wired to "normally open" terminal
on device adaptor board
E Power supply, 120 VAC
¨ Safety instruction!
Provide disconnect means and
overcurrent protection as required
by local codes.
Note:
Spring return air dampers do not
require field supplied relay.
41