Shut down your heating system if you do not intend using it for longer periods
(several months).
Before you shut down your heating system for short or longer 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.
1.
ON/OFF switch "
8
".
The green indicator (ON/OFF indi-
cator) extinguishes.
2.
Close 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 volt,
the heating system has
no
frost
protection.
Note
All settings remain intact.
Starting a heating circuit and DHW heating/loading
Press
G
.
Central heating and DHW:
&
Central heating active.
&
DHW will be loaded (subject to a
DHW cylinder or instantaneous
water heater being installed).
&
Frost protection for the boiler and
the DHW cylinder is active.
Heating system shutdown
(cont.)
11
Start-up and shutdown
55
92
453
GB