Recirculated Air Intake - Truma Combi D 6 AU Installation Instructions Manual

Always connect gas-tight adapter (18) of exhaust muffler (4)
to unit. Replace damaged O-ring (13).
– Slide clamp (22) onto extraction duct (5).
– Slide adapter (18) of exhaust muffler (4) into muff (19) at
unit as far as it will go.
– Click the exhaust gas tube attachment CBD (20) into the
sockets (19).
– Check that the exhaust gas sound muffler (4) sits correctly.
– Slide extraction duct (5) onto muff (21) and secure with
clamp (22).
18
21
20
19
Fig. 12
Always fit new O-ring to adapter of exhaust muffler
after dismantling!
Fit air intake muffler to cowl
Fit long connecting end of air intake muffler (7) to cowl and
attach short end to unit.
– Determine required installation length (shorten long
connecting end if necessary depending on installation
situation).
– Slide clamp (24) onto air intake muffler.
– Slide air intake muffler onto muff (23) as far as it will go and
secure with clamp (24).
23
Fig. 13
6
5
22
4
13
4
7
24
Fit air intake muffler to unit
Route air intake muffler so that electrical connections
remain accessible.
– Slide clamp (25) onto air intake muffler (7).
– Slide air intake muffler onto muff (26) as far as it will go and
secure with clamp.
7
26 25
Fig. 14
Extraction air supply
The cooling air (extraction air) that is needed to operate the
burner is drawn from the vehicle interior via a fan in the wall
cowl. The openings of this air extractor must be kept clear so
that air can enter at all times.
Fig. 15

Recirculated air intake

The circulated air is drawn in by the unit. This must have one
large or several small openings with a total area of at least
150 cm² between the living compartment (not the rear stor-
age space) and the installation compartment.
If a grid (not in scope of supply) is installed (Fig. 16), the same
size requirement regarding cross-sectional area (150 cm²) for
drawing in air must be observed.
Fig. 16
The circulated air inlets must be arranged so that exhaust
from the vehicle engine or the heater cannot be drawn in
under normal operating conditions. It must be ensured by
means of construction design that the heating air introduced
into the vehicle is not polluted.