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

Shutting down the heating system

With frost protection monitoring

Select the operating program " " for frost
protection monitoring (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 boiler and 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.
" flashes.
" flashes.
" flashes.
Start-up/shutdown
Ending the operating program " "
Select another operating program.
Press the following keys:
1. for settings; "
2. OK to confirm; "
3. OK to confirm; " " flashes.
4. until "
heating and DHW are provi-
ded.
or
until " " flashes: DHW is
heated but there will be no cen-
tral heating.
5. OK to confirm; the selected operat-
ing program is activated.
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).
" flashes.
" flashes.
" flashes: The central
11