Draining/Frost Protection - Viessmann VITOGAS 100-F Service Instructions Manual

Rated heating output of 29 to 60 kw gas boiler natural gas and lpg version
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Draining/frost protection

Draining/frost protection
To completely drain the boiler (e.g. when
there is a risk of frost), also drain the l.h.
boiler section via drain valve A at the
front of the boiler.
23

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