Technical information

1
Control Overview—Power Supply Wiring
Power Control—120VAC
Applicable for Vitotronic 100, GC1, Vitotronic 300, GW2 and Vitocontrol-S, CT3/VD2
1 Green [40] plug plugged into
control from control installation
steps.
2 Pre-wired interconnecting
harness between [40] plug and
DIN rail terminals.
3 Terminals on DIN rail inside of
control junction box.
4 Supply voltage 120VAC
terminated at terminal 11.
Connection of neutral and
ground as well.
5 Incoming power supply from
local disconnect powered by
remote electrical panel.
2
3
4
5
Section 3.4
Section 3
120VAC
Power Supply
IMPORTANT
Depending how the various control
power supplies are wired by the
installer/electrician, a single power
source for each boiler controls is
suggested. This will allow a single
boiler control to be shut down
while leaving the remaining units
to operate as necessary.
IMPORTANT
Ensure that all field wiring conforms
to local codes and regulations.
5346540 v1.0 09/2006 Technical information subject to change without notice
30