Extreme Weather Conditions - Viessmann Vitoflex 300-RF series Service And Maintenance Instructions

Safety

Extreme Weather Conditions

Frozen water pipe hazard
Your heating boiler is designed to provide a warm and
comfortable living environment. It is NOT designed to
ensure against freezing of water pipes. The boiler is
equipped with several safety devices that are designed
to shut down the boiler and to prevent it from
restarting in the event of various unsafe conditions.
If your boiler remains off for an extended period of time
during cold weather, water pipes may freeze and burst,
resulting in extensive water damage and conditions in
which mold could grow. Certain molds are known to
cause respiratory problems, as well as to pose other
serious health risks. In case of water damage, immediate
measures should be taken to dry out affected areas as
quickly as possible to prevent mold from developing.
WARNING
As there are no user-serviceable parts on the boiler,
or control, the end-user must not perform service
activities of any kind on system components. Failure
to heed this warning can cause property damage,
severe personal injury or loss of life.
10
Vitoflex 300-RF Service & Maintenance
If the building will be unattended for an extended period
of time during cold weather, you should...
Shut off the water supply to the building, drain the water
pipes and add antifreeze for potable water to drain traps
and toilet tanks. Open faucets where appropriate.
or...
Have someone check the building frequently during cold
weather and call a qualified service agency if required.
or...
Install a reliable remote temperature sensor that will notify
somebody of freezing conditions within the building.