Select energy source
– Select icon in menu bar (3) with rotary push button.
– Change by tapping in the setting level.
– Select desired energy source with rotary push button.
– Tap rotary push button to confirm value.
a
b
2
3
Icon
Operating mode
a
Gas / Fuel
b
EL 1
c
EL 2
d
MIX 1 *
e
MIX 2 *
* Mixed mode
As soon as the heating system is switched on (room
temperature, hot water level active) the energy type that
was selected for the previous heating procedure is displayed
in the status bar. The factory setting is gas / diesel.
24
c
d
e
Energy mode
Gas / Diesel
Electrical
Electrical
Electric + Gas / Diesel
Electric + Gas / Diesel
Special features in mixed mode
Interruption of the mains voltage 230 V:
The heating system switches automatically into gas and diesel
mode. As soon as the 230 V power supply has been restored,
the heating system automatically switches back to mixed
mode.
Fault in combustion procedure (e.g. lack of fuel).
Combi Gas
The heating system switches automatical-
ly into electrical mode. If the heating system
is to run in mixed mode again, the cause of
the fault must be remedied. Switch heating
system on and off again at control panel.
Combi Diesel
The heating system goes to fault. Switch
heating system on and off again at control
panel. Switch to "Electrical" energy type if
the fault is persistent.