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equipment det
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GAS oPERATIon (HEATInG AnD
HoT WATER)
a Rotary switch for room temperature (1 – 5)
b green LED lit ‘Operation’ green LED
blinking ‘after-running’ is active in order to
reduce the unit’s temperature
c Summer operation
(water temperature 40° C or 60° C)
d Winter operation (heating without water
temperature monitoring or with drained
water system)
e Winter operation (heating with water
temperature monitoring)
f Rotary ‘Off’ switch
g Yellow LED lit ‘Boiler heat-up phase’
h Red LED lit, red LED blinking ‘Failure’
The LEDs are visible only when the unit is
switched on.
RooM THERMoSTAT
i Room temperature sensor
To measure the room temperature, an
external room temperature sensor (i) is located
in the vehicle. The location of the sensor
is determined individually by the vehicle
manufacturer, depending on the vehicle type;
consult the operating instructions for your
vehicle for further details.
The thermostat setting on the control panel
(1 – 5) must be determined individually
depending on the heating requirement and
the type of vehicle. For an average room
temperature of about 23° C, we recommend a
thermostat setting of about 4.
fRoST ConTRoL (SAfETY/DRAIn VALVE)
FrostControl is a currentless safety/drain
valve. When there is a danger of frost, it
automatically drains the contents of the boiler
through a drainage muff. If excessive pressure
is present in the system, pressure will be
automatically intermittently equalized through
the pressure relief valve.
k rotary switch position ‘Operation’
m push button position ‘Closed’
n push button position ‘Drain’
o drainage muff (led outside through
floor of vehicle)
CLoSInG THE DRAIn VALVE
Check if the rotary switch is set to ‘Operation’
(position k), meaning that it is parallel to the
water connection and engaged.
It can be manually closed with the push button
(position m) and then the boiler filled only
when the temperature at the drain valve is
above approximately 7° C.
Close the drain valve by activating the push
button. The push button must engage in
position (m) ‘closed’.
Truma can provide a heating element (part no.
70070-01) as an accessory; it is inserted into
FrostControl and warms it up to about 10° C
when Combi is switched on. Then, after a short
time, you can fill up the boiler regardless of the
temperature in the installation compartment.
smell may be noticed for a short while. It is a
good idea to heat the device up several times
in summer operation (60° C) and to make sure
that the area is well ventilated.
Heat-sensitive objects such as spray cans
or flammable liquids may not be stored in
the same compartment where the heater is
installed because, under certain conditions, this
area may be subject to elevated temperatures.
Only pressure regulating equipment that
complies with EN 12864 (in vehicles) with fixed
output pressure of 30 mbar may be used for
the gas system. The flow rate of the pressure
control device must correspond to at least the
maximum consumption of all devices installed
by the system manufacturer.
For vehicles, we recommend Truma’s
SecuMotion gas pressure regulator; for the
two-cylinder gas system we also recommend
the Truma DuoComfort changeover valve.
At temperatures below 5° C, the gas pressure
regulator or the changeover valve should be
used with EisEx regulator heating.
Controller connecting hoses that meet national
regulations must always be used in the
respective country for which the equipment
is destined. These hoses must be checked
regularly for brittleness. Winter-proof special
hoses must always be used if the equipment is
operated during the winter.
Pressure regulating equipment and hoses
must be replaced with new ones no more
than 10 years after the date of manufacture
(every 8 years if used commercially). This is the
responsibility of the operator.
Do not use the boiler water as
drinking water!
IMPoRTAnT oPERATInG noTES
If the cowl has been placed near or directly
beneath an opening window, the device
must be equipped with an automatic shut-off
device in order to prevent operation with the
window open.
The integrity and tight fit of the exhaust
gas double duct must be checked regularly,
particularly at the end of long trips. Also check
the mounting of the appliance and the cowl.
Following a blow-back (misfire) always have
the exhaust gas system checked by an expert!
Always keep the cowl for the exhaust duct and
combustion air intake free of contamination
(slush, ice, leaves etc.). The warm air outlets
and the openings for circulation air return must
be unobstructed so the unit will not overheat.
The integrated temperature limiter blocks the
gas supply when the unit becomes too hot.
Directive 2004/78/EC stipulates that a safety
shut-off device is required if motor homes are
being heated while driving.
The Truma SecuMotion gas pressure regulator
meets this requirement.
note: If the Truma SecuMotion gas
pressure regulator is not installed, the
gas cylinder must be closed while driving
and warning signs must be in place in the
gas cylinder protection box and near the
control panel.
The safety shut-off device is also recommended
for safety reasons if motorhomes are being
heated while driving.
oPERATInG InSTRUCTIonS
Always observe the operating instructions and
‘Important operating notes’ prior to starting!
The vehicle owner is responsible for the correct
operation of the appliance.
The installer or vehicle owner must apply the
yellow sticker with the warning information,
which is enclosed with the appliance, to a
place in the vehicle where it is clearly visible
to all users (e.g. on the wardrobe door)! Ask
Truma to send you stickers, if necessary.
Before using for the first time, it is essential
to flush the entire water supply through with
clean warm water. If the heater is not being
used, always drain the water contents if there
is a risk of frost. There shall be no claims under
guarantee for damage caused by frost!
