Function Description (Combi D 6); Function Description (Combi D 6 E); Fuel Supply; Fuel Quality - Truma Combi D 6 Operating Instructions Manual

Function description (Combi D 6)

The Combi D 6 diesel heater is a warm air heater with an
integrated hot water boiler (10 litre volume). The burner is fan-
assisted, which ensures that operation is problem-free, even
when on the move.
In heating and hot water mode the heater can be used to
heat the room and heat water up at the same time. If only hot
water is required, select hot water mode.
– In hot water mode, the water is heated at the lowest
burner setting. Once the water temperature has been
reached, the burner switches off.
– In heating and hot water mode, the unit automatically
selects the required operating level according to the tem-
perature difference between the temperature set on the
control panel and the current room temperature. If the
boiler has been filled, the water is automatically heated as
well. The water temperature depends on the selected oper-
ating mode and the heater output.
At a temperature of approximately 3 °C at the automatic
FrostControl safety/drain valve, the valve will open and
drain the boiler.

Function description (Combi D 6 E)

The Combi D 6 (E) diesel heater is a warm air heater with an
integrated hot water system (10 litre volume). The burner is
fan-assisted, which ensures that operation is problem-free,
even when on the move.
In heating and hot water mode the heater can be used to
heat the room and heat water up at the same time. If only hot
water is required, select hot water mode.
At a temperature of approximately 3 °C at the automatic
FrostControl safety/drain valve, the valve will open and drain
the boiler.
3 different options are available for operating the unit:
– Diesel mode only
for autonomous use
– Electric mode only
with 230 V for stationary use on camp sites
– or diesel and electrical mode — mixed mode
only possible in heating and hot water mode.
Heating and hot water mode
In heating and hot water mode, the unit automatically
selects the required operating level according to the tempera-
ture difference between the temperature set on the control
panel and the current room temperature. If the boiler has
been filled, the water is automatically heated as well. The
water temperature depends on the selected operating mode
and the heater output.
All 3 energy selection options can be used for winter deployment.
– In diesel mode the unit automatically selects the operating
level that is required.
– In electrical mode output of 900 W (3.9 A) or 1800 W (7.8 A)
can be manually preselected in accordance with the fuse pro-
tection at the camp site.
If more output is required (e.g. heating up or low outside
temperatures) diesel or mixed mode should be selected so
that enough heating power is always available.
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– In mixed mode 230 V electrical mode is preferred if the
power requirement is low (e.g. for maintaining the room
temperature). The diesel burner is not enabled until the
power requirement is higher, and is the first to switch off
when heating is in progress.
Hot water mode
(with filled boiler only)
Diesel mode or 230 V electrical mode is used to generate hot
water. The water temperature can be set to 40 °C or 60 °C.
– In diesel mode the water is heated at the lowest burner
setting. Once the water temperature has been reached, the
burner switches off.
– In electrical mode output of 900 W (3.9 A) or 1800 W (7.8 A)
can be manually selected in accordance with the fuse protec-
tion at the camp site.
Mixed mode is not possible. With this setting the unit
automatically selects electrical mode. The diesel burner
is not enabled.

Fuel supply

Fuel quality

The heater requires DIN EN 590 diesel fuel for operation. Op-
eration using bio-diesel (PME, RME or AME) is not permitted.

Fuel at low temperatures

The refineries and filling stations will automatically perform
the required adjustments for the usual winter temperatures
(winter diesel).
Difficulties can occur at temperatures below 0 °C if the vehicle
still has summer diesel in its fuel tank.
If no special diesel fuel is available for use in low tempera-
tures, e.g. winter diesel, then petroleum or benzine should
be mixed in with the fuel, in accordance with the instructions
given by the vehicle manufacturer.
Temperature
0 °C to -20 °C Winter diesel
-20 °C to -30 °C. Polar or Arctic diesel
Used oil should not be used as an additive!
To guarantee that all fuel lines of the heater unit are filled with
winter diesel or another permitted mixture after fuelling, the
heater must be operated for at least 15 minutes.