Boiler With Low Water Cut-Off (Remote Mounted, Field Supplied) - Viessmann VITODENS 100-W WB1B Series Installation And Service Instructions Manual

Boiler Connections
Installation Examples
(continued)
Boiler with low water cut-off (remote-mounted, field supplied)
A low water cut-off may be required
Hi-Vent
Hi-Vent
by local codes. If boiler is installed
above radiation level, a low water
cut-off device of approved type
(field supplied) must be installed in
all instances at the highest point of
the piping system. Do not install an
LWCO LWCO
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.
Fig. 31 Boiler below radiation Fig. 32 Boiler above radiation
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