Viessmann VITOTRONIC 100 GC1B Installation And Service Instructions Manual page 75

Vitotronic 100, GC1B Installation and Service
Burner Connection, Motor Power Supply
Legend
A Burner motor power supply 3PH 208, 460 or 575V
B Connection terminals and plug inside connection
enclosure
C Cable and conduit - factory supplied
D Burner
E Motor starter
F Overload
G Burner motor
H Connection enclosure
(continued)
For burners with 3PH 208, 460 or 575V power supply.
See burner manual for correct fuse
and wire gauge sizing, and specific
connections for Viessmann controls.
1. Disconnect power to burner and boiler control.
2. Connect 3PH power to the terminals 21, 22, 23 and
24 on the DIN rail inside the connection enclosure.
Provide fuseable disconnect means according to
local codes.
3. Connect supplied power cable to the motor terminals
on the burner.
4. Connect cable plug to the socket on the DIN rail in
the connection enclosure.
Installation Sequence
75