Heating System Shutdown - Viessmann VITODENS Operating Instructions Manual

Heating system shutdown

If, temporarily, you have no need of your heating system, e.g. during a summer
holiday, switch the system to "Standby mode" K (see page 12).
Note
The circulation pumps are briefly started every 24 hours to prevent them from
seizing up.
Shut down your heating system if you do not want to use it.
Before you shut down your heating system for short or long periods, it would be
advisable to contact your local heating contractor.
Your heating contractor can then take any necessary measures, subject to
requirements, e.g. for frost protection of the system or to preserve the heating
surfaces.
Start-up and shutdown
1. Switch OFF main ON/OFF
switch 8;
the green indicator (ON/OFF indi-
cator) goes out.
2. Close the shut-off valves in the oil
supply lines (at the oil tank and fil-
ter) or the gas shut-off valve.
3. Switch OFF the mains power sup-
ply; e.g. at a separate fuse or a
mains electrical isolator.
As the system is now at zero volts;
the heating system has no frost
protection.
Note
All control settings remain intact.
11