17
Heating mode
The units operate fully
automatically and in accordance
with the room temperature.
1. Switch on the local main switch
or fuse(s)/breaker(s).
2. Open the fuel supply.
3. Set the desired temperature on
the room thermostat.
4. Switch on the “Heating”
selector switch.
It should be noted that the forced-
air burner switches on immediately
when heat is required, but the
supply air fan is only switched on
automatically after the setpoint
temperature has been reached.
This prevents the unwanted
blowing out of cold air.
Switch off both selector switches.
The supply air fan continues to run
to cool down the heat exchanger
and may start several times until it
is finally switched off.
For longer periods of
inactivity, the units
should be disconnected
from the mains and the
fuel supply shut off.
Shutdown
Ventilation
1. Switch on the ventilation selec-
tor switch.
In this switch position, the supply
air fan runs permanently.
The units can be used for air recir-
culation or ventilation purposes.
Thermostatic control is not possible.
0
I
CAUTION
The unit may never be
switched off via the main
switch or an emergency switch
prior to the completion of the
cool-down phase (except in
emergencies).
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