Viessmann VITOTRONIC 100 GC1B Service Manual Page 70

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Installation
70
Connection of Single Combustion Air Device on Multiple Boiler Systems
Connection of the combustion air
blower
A Common Combustion Air Device
Interface
B Combustion air device motor
120VAC, 5 FLA max.
C Proving switch rated for 120 VAC
D Power supply, 120 VAC
¨ Safety instruction!
Provide disconnect means and
overcurrent protection as required
by local codes.
See blower manual for current
rating to correctly select the fuse.
See Common Combustion Air
Device Interface manual for
Installation and Operating details.
1. Disconnect power to control and
burner.
2. Make the connections as shown
in the diagram.
5351 338 v1.6
D
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