Technical information

Installation of Boiler Controls
Vitotronic 100, GC1 and Vitotronic 300, GW2 on Vitorond VD2 boilers (1255-4387MBH or 368-1285KW)
Refer to boiler manual for more detailed instructions on the boiler jacket assembly
1 Holes for fastening control to
control harness (control mount-
ing bracket) to side of boiler
jacket. Four holes needed to
properly fasten harness (bracket)
to jacket with supplied screws.
Drill four 1/8” holes to allow for
screws to be fastened.
2 Make 7/8” hole to feed limit cap-
illaries as well as boiler tempera-
ture sensor into boiler jacketing.
The limits and sensor are to be
drawn to rear of boiler.
Note: Grommet/Bushing for 7/8”
hole supplied with boiler control
in accessory bag.
3 Control harness (mounting
bracket) is held onto boiler jacket
with four screws.
4 Install burner harness onto con-
trol harness by guiding behind
DIN rail. Fasten with two screws
at either end of burner harness.
5 Install cover with two screws at
front of boiler jacket.
IMPORTANT
The boiler control will cover the
first side-panel and a portion of
the second.
Measurements shown in Metric and Imperial units
Installation Steps
Section 2
Section 2.2
1
2
3
4
5
10
5346540 v1.0 09/2006 Technical information subject to change without notice