Shutting Down The Heating System; With Frost Protection Monitoring; Without Frost Protection Monitoring (Shutdown) - Viessmann VITODENS Operating Instructions Manual

Shutting down the heating system

With frost protection monitoring

Select heating program " " for frost pro-
tection (standby mode).
Press the following keys:
1. for settings; "
2. OK to confirm; "
3. OK to confirm; "
4. until " " flashes.
5. OK to confirm; frost protection is
activated.
■ No central heating.
■ No DHW heating.
■ Frost protection for the boiler and the
DHW cylinder is enabled.
Note
The circulation pumps are briefly started
every 24 hours to prevent them from
seizing up.

Without frost protection monitoring (shutdown)

1. Switch the ON/OFF switch " " OFF.
2. Close the gas shut-off valve.
Note
Ask your heating contractor to
explain the positioning and handling
of these components.
3. Isolate the heating system from its
main power supply, e.g. at a separate
MCB/fuse or a mains isolator.
Terminating heat program " "
Select another heating program.
Press the following keys:
" flashes.
1.
" flashes.
2. OK to confirm; "
" flashes.
3. OK to confirm; " " flashes.
4.
5. OK to confirm; the selected heating
4. Where outside temperatures of
below 3 °C are anticipated, please
take suitable measures to protect the
heating system against frost. If nec-
essary, contact your heating contrac-
tor.
Note
After an extended shutdown, it may be
necessary to reset the date and time
(see page 20).
Start-up/shutdown
for settings; " " flashes.
" flashes.
until " " flashes: the rooms
and DHW are heated.
or
until " " flashes: DHW is
heated but central heating is not
active.
program is activated.
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