Viessmann Vitotronic 100 GC1 Installation And Service Instructions Manual page 49

Burner connection, burner control wiring
Burner motor power supply connection
For burners with 120 VAC, 1PH power
supply and soft cable connection.
A Burner motor power supply
120 VAC, 1PH
B Connection terminals and plug
inside connection enclosure
C Cable - factory supplied
D Burner
E Motor starter
F Burner motor
G Connection enclosure on
boiler control
(continued)
Installation – Vitotronic 100, GC1
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.
49