Swift Motorhome Owners Service Manual page 115

TR U MA C OM BI 4E/6E
If more output is required (e.g. heating up
or low outside temperatures) gas or mixed
operation should be selected so that enough
heating power is always available.
With mixed operation, 230 V electrical
operation is preferred if the power
requirement is low (e.g. for maintaining the
room temperature). The gas burner is not
enabled until the power requirement is higher,
and is the first to switch off during heat-up
operations.
Summer operation (boiler operation only)
Gas operation or 230 V electrical operation
is used for hot water preparation. The water
temperature can be set to 40 °C or 60 °C.
With gas operation the water is heated at
the lowest burner setting. Once the water
temperature is reached, the burner switches
off.
Depending on the fuse protection at the
camping site, power of 900 W (3.9 A) or
1800 W (7.8 A) can be manually selected for
electrical operation.
Mixed operation is not possible. With this
setting the unit automatically selects electrical
operation. The gas burner is not enabled.
Repairs may only be carried out by
an expert
Guarantee claims, warranty claims and
acceptance of liability will be ruled out in the
event of the following:
– modifications to the unit
(including accessories),
– modifications to the exhaust duct and
the cowl,
– failure to use original Truma parts as
replacement parts and accessories,
– failure to follow the installation and operating
instructions.
It also becomes illegal to use the appliance,
and in some countries this even makes it illegal
to use the vehicle.
During the initial operation of a brand new
appliance (or after it has not been used for
some time), a slight amount of fumes and
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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.
Important operating notes
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 hot air outlets and the recirculated air
intake openings must be free so that the unit
does not overheat. The integrated temperature
limiter blocks the gas supply when the unit
becomes too hot.
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.
Before using for the first time, it is essential to
flush the entire water supply system through
with clean 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!
Taking into operation
Heating is possible without restrictions with
gas, electrical and mixed operation, with or
without water.
Check to make sure the cowl is unobstructed.
Be sure to remove any covers that may be
present.