10. Built-in devices
122
Malfunction in the combustion process (e.g. lack of fuel)
Combi Gas
The heating system will switch automatically to electric operation. If it
is running in mixed operation, the cause of the malfunction must be
eliminated. Use the control panel to switch the heating off and then
on again.
Icon
Type of operation
Description
-
OFF
Fan is switched off.
(Can only be used if no device is
being operated.)
a
VENT
1)
Air circulation if no devices are
being operated and the hot-water
supply has been switched off.
RPM can be selected in
10 increments.
b
ECO
Low fan speed.
c
HIGH
2)
high fan level
d
BOOST
To heat room rapidly
Available if the difference between
the selected and the actual room
temperature is more than 10°C.
Use the control knob / pushbutton
q
to select the icon in the
menu line
l
.
• Press to switch to the setting mode.
• Use the control knob / pushbutton
q
to select the desired fan
speed.
• Press the control knob / pushbutton
q
to confirm the temperature.
Selecting the fan speed
Special features in electric operation
- If the 230V power supply is interrupted and the 12V supply has
been switched on, an error code will be shown on the display.
- As soon as the 230V power supply has been reinstated, the
heating system will automatically be restarted using the previous
settings. The error code will disappear.
1)
Can lead to higher fan motor wear, depending on how often it is selected.
2)
The “HIGH” fan speed has a higher current consumption, higher noise
level and higher fan motor wear.
As soon as the heating is switched on (room temperature
and hot water temperature have been activated) the
fan speed selected in the previous heating operation
is displayed in the status line. Manufacturer's default
setting: “ECO”.
a
b
c
d
3
