Venting Connection; Electrical Connections; Rotating The Control Unit And Opening The Power / Pump Module - Viessmann VITODENS 100-W WB1B Series 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

Fig. 36
Fig. 37
Boiler / Control Connections
For detailed installation
information and specific
venting requirements,
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.
4. Remove cover by releasing tabs if
necessary.
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
For other required installation
steps, please reference the
Installation Instructions for
the accessory part.
37