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

Start-up/shutdown

Shutting down the heating system

With frost protection monitoring

For every heating circuit, select the heat-
ing program "Standby mode".
■ No central heating.
■ No DHW heating.
■ Frost protection for the boiler and the
DHW cylinder is enabled.
For the heating circuit displayed in
the header
Standard menu
1. / for the heating program
"Standby mode" (frost protection
monitoring).
2. OK as confirmation.
For the other heating circuits
Extended menu
1.
2. "Heating"

Without frost protection monitoring (shutdown)

1. Switch the ON/OFF switch OFF.
2. Close the shut-off valves in the oil
lines (at the tank and filter) or close
the gas shut-off valve.
3. Isolate the heating system from its
main power supply, e.g. at a separate
MCB/fuse or a mains isolator.
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.
16
3. Select the heating circuit if necessary
(see page 17).
4. "Heating program"
5. "Standby mode" (frost protection
monitoring).
Note
The circulation pumps are briefly started
every 24 hours to prevent them from
seizing up.
Ending the heating program "Standby
mode"
Select another heating program.
Information on a prolonged shutdown
■ Circulation pumps may seize up as
they are not supplied with power.
■ After an extended shutdown, it may be
necessary to reset the date and time
(see page 30).