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Taking into operation
Heating operation is basically possible without
restriction with or without water content.
Check to make sure the cowl is unobstructed. Be sure to
remove any covers that may be present.
Turn on gas cylinder and open quick-acting valve in the gas
supply line.
Summer operation
(boiler operation only)
Move the rotary switch on the control panel to position
(c – summer operation) 40 °C or 60 °C. The green (b) and
yellow (g) LEDs light up.
After reaching the set water temperature (40 °C or 60 °C),
the burner will switch off and the yellow LED (g) will be
extinguished.
Winter operation
–
Heating with water temperature monitoring
Set the rotary switch to the operational setting "e".
Set the rotary switch (a) to the desired thermostat setting
(1 – 5). The green LED (b) for operation is lit and simulta-
neously indicates the position of the selected room tem-
perature. The yellow LED (g) indicates the water's heat-up
phase.
The unit automatically selects the required power level ac-
cording to the temperature difference between the setting
on the control panel and the current room temperature.
Once the room temperature set on the control panel has
been reached, the burner switches back to the lowest stage,
and heats the water content to 60 °C. The yellow LED (g)
will be extinguished after the water temperature is reached.
–
Heating without water temperature monitoring
Set the rotary switch to the operational setting "d".
Turn the rotary switch (a) to the desired thermostat setting
(1 – 5). The green LED (b) for operation is lit and simultane-
ously indicates the position of the selected room tempera-
ture. The yellow LED (g – water's heat-up phase) will be lit
only when the water temperature is below 5 °C!
The unit automatically selects the required power level ac-
cording to the temperature difference between the setting
on the control panel and the current room temperature. Af-
ter reaching the room temperature set on the control panel,
the burner will switch off. The warm-air fan will continue to
run at a low speed as long as the blow-out temperature
(on the unit) is higher than 40 °C.
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
Set the rotary switch to the operational setting "d".
Turn the rotary switch (a) to the desired thermostat setting
(1 – 5). The green LED (b) for operation is lit and simultane-
ously indicates the position of the selected room temperature.
The yellow LED (g) will be lit only when the temperature of
the unit is below 5 °C!
The unit automatically selects the required power level ac-
cording to the temperature difference between the setting
on the control panel and the current room temperature.
After reaching the room temperature set on the control pan-
el, the burner will switch off. The warm-air fan will continue
to run at a low speed as long as the blow-out temperature
(on the unit) is higher than 40 °C.
Switching off
Use the rotary switch to switch off heater (position f).
The green LED (b) goes off.
If the green LED (b) 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 (b) 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.
Red LED "Failure"
The red LED (h) will be lit if there is a failure.
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 (h)
flashes. The heater continues operating when the window
is closed.
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 switch or pump switch).
Open hot water taps in kitchen and bathroom, (set preselect-
ing mixing taps or single-lever fittings to "hot"). Leave the fit-
tings open for as long as it takes for the boiler to displace the
air and fill up, and the water to flow without interruption.
If just the cold water system is being operated, without
using the water heater, the heater tank also fills up with
water. To avoid frost damage, the boiler must be drained
through the drain valve, even if it was not operated.
When connecting to a central water supply (rural or city
mains), a pressure reduction valve must always be in-
stalled to prevent pressures above 2.8 bar from developing in
the water heater.
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