Equipment details
85
If the boiler is filled, the water will
automatically be heated at the same time.
The water temperature is then dependent
on the heating output being given off, and
the duration of heating required to reach the
desired room temperature.
– Heating with drained water system
Select gas or electrical operation using the
power selector switch. Illumination of the
yellow LED (g) on the power selector switch
indicates that the unit is operating
with 230 V.
Move rotary switch on control panel to
operating position (m).
Turn the rotary switch (h) to the desired
thermostat setting (1 – 5). The green LED
(k) for operation is lit and simultaneously
indicates the position of the selected room
temperature. The yellow LED (p) will be lit
only when the temperature of the unit is
below 5 °C!
Depending on the operating mode, the
unit will automatically select the required
power level according to the temperature
difference between the setting on the control
panel and the current room temperature.
Once the room temperature selected on the
control panel has been reached, the heater
switches off. The warm air fan continues
to run at slow speed until the outgoing air
temperature (on the unit) has fallen to 40 °C
or less.
Switching off
Switch off heater at control panel using rotary
switch (position o). The green LED (k) goes off.
If the green LED (k) blinks after switching off,
then the unit‘s after-running is active in order
to reduce the unit‘s temperature. This will end
after a few minutes and the green LED (k) will
go off.
Always drain water contents if there is a risk
of frost! If the appliance is not to be used for
a prolonged period, close the quick-acting
valve in the gas supply line and turn off the gas
cylinder.
Gas operation fault
If a fault occurs during gas operation the red
LED (r) on the control panel illuminates.
Please consult the Trouble-Shooting list for
possible causes.
A reset (fault reset) is carried out by switching
off, waiting until all LED’s on the control panel
have stopped flashing, and then switching the
heater on again.
If a window to which a window switch has been
fitted is opened, the heater stops operating and
the red LED (r) flashes. The heater continues
operating when the window is closed.
Electrical operation fault
If a fault occurs during electrical operation the
yellow indicator lamp (g) on the power selector
switch goes off.
Possible causes can be found in the
troubleshooting list.
If the 230 V power supply is interrupted for just
a brief period of approximately 1 second during
operation, the heater will subsequently resume
as normal.
Filling the water heater
Check if the rotary switch for the drain valve
(FrostControl) is set to “Operation”, meaning
that it is parallel to the water connection and
engaged.
Close the drain valve by pushing the push
button until it engages.
When the temperature at FrostControl is below
about 7 °C, first switch on the heater to warm
the installation compartment and FrostControl.
After several minutes, when the temperature at
FrostControl is above 7 °C, the drain valve can
be closed.
Switch on power for water pump (main or pump
switch).
Open hot water taps in kitchen and bathroom,
(set preselecting mixing taps or single-lever
fittings to “hot”). Leave the fittings open for as
long as it takes for the boiler to displace the
air and fill up, and the water to flow without
interruption.
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