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FITTED EQUIPMENT
Switching off
Switch off heater at control panel using rotary
switch (position o). The green LED (k) goes
off.
Note: 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.
CAUTION: Always drain water contents if
there is 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 troubleshooting 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.
Note: 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.
Note: If the 230V power supply is interrupted
for just a brief period of approximately one
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.
Note: When the temperature at FrostControl
is below about 7ºC, first switch on the heater
to warm the installation compartment and
FrostControl. After several minutes, when the
temperature at FrostControl is above 7ºC,
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 pre-selecting 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.
Note: 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.
WARNING: When connecting to a central
water supply (rural or city mains), a
pressure reduction valve must always be
installed to prevent pressures above 2.8
bar from developing in the water heater.
Draining the water heater
Switch off power to water pump (main or
pump switch).
Open hot water taps in kitchen and
bathroom.
In order to check the water that is flowing out,
place an appropriate container (capacity 10
litres) beneath the drain valve (FrostControl)
drainage muff (x).
Turn the rotary switch on the drain valve by
180º until it engages, whereby the push
button moves out and the drain valve opens.
Check whether all of the water in the boiler
(10 litres) has been drained into the container
via the drain valve.
There shall be no claims under guarantee for
damage caused by frost!
Maintenance
Only original Truma parts may be used for
maintenance and repair work!
The materials in the device that come into