Venting Connection; Electrical Connections; Rotating The Control Unit And Opening The Power / Pump Module - Viessmann VITODENS 100-W Installation And Service Instructions Manual

Venting Connection

CAUTION
Under certain climatic conditions some building materials may be affected by flue products expelled in close proximity to
unprotected surfaces. Sealing or shielding of the exposed surfaces with a corrosion resistant material (e.g. aluminum
sheeting) may be required to prevent staining or deterioration. The protective material should be attached and sealed (if
necessary) to the building before attaching the vent termination. It is strongly recommended to install the vent termination
on the leeward side of the building.

Electrical Connections

Rotating the control unit and opening the power / pump module

2.
3.
4x
Fig. 34
B
4.
Fig. 35
Boiler / Control Connections
reference the Vitodens Venting System
Installation Instructions supplied with
the boiler.
1. Loosen the screws underneath the
boiler but do not remove them.
Remove the cover (as shown on
page 18).
2. Pull tabs outwards.
3. Flip control unit down.
2x
4. Remove cover by releasing tabs if
necessary.
1.
5. Unlock 4 spring-loaded lock screws
B and remove cover plate of the
power pump module.
IMPORTANT
Both the control unit and the power
pump module have labels and stickers
containing important information. Read
and follow their respective instructions.
IMPORTANT
The ON / OFF switch located on the
boiler does not disconnect power to
power / pump module, therefore the
main service switch or breaker must be
turned off.
Note on connection of accessories
Instructions for the accessory part.
For detailed installation
information and specific
venting requirements,
For other required
installation steps, please
reference the Installation
37