Viessmann Vitotronic 100 GC1 Installation And Service Instructions Manual page 50

Installation – Vitotronic 100, GC1
Burner connection, burner control wiring
Burner motor power supply connection
For burners with 120 VAC, 1PH power
supply and connection in conduit.
A Burner motor power supply
120 VAC, 1PH
B Connection terminals and plug
inside connection enclosure
C Cable and conduit - factory
supplied
D Burner
E Motor starter
F Burner motor
G Connection enclosure on
boiler control
50
(continued)
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 120 VAC power to the
terminals 21, 22 and 23 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.