Viessmann VITODENS Operating Instructions Manual page 24

Start-up/shutdown
Shutting down the heating system
!
Please note
If outside temperatures of
below 3 °C are expected, take
appropriate measures to pro-
tect the heating system from
frost.
If necessary, contact your
heating contractor.
Information on a prolonged shutdown
■ Circulation pumps may seize up as
they are not being supplied with
power.
■ After an extended shutdown, it may be
necessary to reset the date and time
(see page 36).
24
(cont.)