Viessmann GC1 - Selecting the Heating Program (Winter, Summer)

Ready for operation
8
Selecting the heating program (winter, summer) Vitotronic 300-K, MW1S
Vitotronic 100, GC1
Select the required heating program
with the , or button.
When pressed, the corresponding
button is illumintaed
Central heating and domestic hot water
 The boiler is available to the heating
system and is switched on according
to demand and in accordance with
the boiler sequence
 Frost protection of the boiler
Domestic hot water only
Without function
The domestic hot water supply
is always controlled via the
Vitotronic 300-K, MW1S
(see below)
Standby operation
 The boiler is switched off and is
no longer availble to the Vitotronic
300-K, MW1S (i.e. drops out of
the boiler sequence)
 Frost protection of the boiler
Vitotronic 300-K, MW1S
1.Press the heating circuit slelctor
button; the button is illuminated
2.Select the heating program with
the
, or button.
Central heating and domestic hot water
Central heating with alternating
normal and reduced room
temperature (frost protection)
according to the selected time
program.
Domestic hot water supply (if a
DHW cylinder is installed) and DHW
circulation pump (if installed) ON
according to selected time program
Frost protection of the DHW cylinder
Domestic hot water only
No central heating
Domestic hot water supply (if a
DHW cylinder is installed) and DHW
circulation pump (if installed) ON
according to selected time program
Frost protection of the DHW cylinder
Standby operation
No central heating
No DHW supply
Please note:
The circulation pump is switched
on for a short time every 24 hours
to prevent them from seizing up.
The selected heating program
appears in the display window
for a short time.
Example
For the winter transitionary periods.
Please note:
When the button is lit, the “ ”
symbol appears in the display
window during central heating with
the normal room temperature; the
“ ” symbol is illuminated during
central heating with a reduced room
temperature higher than 3 °C / 37 °F
Example
For the summer.
Please note:
DHW cylinder is connected
“without function” is displayed.
Please note:
The circulation pumps are switched
on for a short time every 24 hours
to prevent them from seizing up.
5581 751 v1.1