Boiler With Low Water Cut-Off (Remote Mounted, Field Supplied); Venting - Viessmann Vitodens 100-W B1HA 26Vitodens 100-W B1HA 35Vitodens 100-W B1KA 35 Installation And Service Instructions Manual

Connections
Installation Examples
Boiler with low water cut-off (remote-mounted, field supplied)
Air Vent
LWCO
Boiler below radiation

Venting

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.
34
Vitodens 100-W, B1HA series & B1KA Combi Installation/Service
(continued)
Air Vent
LWCO
Boiler above radiation
A low water cut-off may be required by local codes.
Do not install an isolation valve between boiler and low
water cut-off.
Follow the installation instructions of the low water
cut-off manufacturer.
For low water cut-off wiring information specific to your
application, refer to applicable wiring diagram on the
boiler front panel.
Note: The Vitodens 100-W boiler has a built-in flow
switch, which may be accepted by local codes
in lieu of a low water cut-off.
For detailed installation information and specific
venting requirements, reference the Vitodens
Venting System Installation Instructions
supplied with the boiler.