Shutting Down The Heating System For An Extended Period; Shutdown - Viessmann VITOLIGNO 300-C Operating Instructions Manual

Shutting down the heating system for an extended period

You can switch your heating system OFF if you do not
intend using it. We recommend you contact your heat-
ing contractor before and after shutting down for longer
periods.
Your heating contractor can then take suitable steps
such as frost protection for the system or heating sur-
face preservation as required.

Shutdown

1. Switch off the boiler by pressing the "START/
STOP" button on the control unit.
2. Wait until the run-on time has passed and let the
boiler cool down.
3. Perform all work described in the overview of the
chapter entitled "Maintenance and repairs" on
page 45.
4. When there is a risk of frost, drain the boiler,
observing the instructions issued by your heating
system installer or ask them to charge the system
with antifreeze.
Note
No special measures are required when shutting down
the system on a temporary basis.
Shutdown
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