17
EN
16
7
1
5
3 – 4 Nm
2
11 12
9
14
13
8
15
Ø
83 mm
TOP OBEN
Figure 8
Connecting the exhaust double duct to the
appliance
Compress the exhaust duct (1) at its beginning so that the
coils lie next to each other. Slide the clamp (4 – claws toward
appliance) over the exhaust duct (1). Slide the clamp (7) onto
the combustion air intake duct (5). Slide exhaust duct (1) all
the way onto connection (3). Slide the clamp (4) as far as it
will go (end position must be between claws of clamp) and
screw in place. Slide combustion air intake duct (5) onto con-
nection (6) and secure with clamp (7).
6
3
3 – 4 Nm
4
1
5
7
Figure 9
Circulated air intake
The circulated air is drawn in by the appliance. 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
storage space) and the installation compartment.
If a grid (not included) is installed (figure 10), the same require-
ments must be complied with for drawing in air in terms of the
cross sectional area through which flow occurs (150 cm²).
Figure 10
The circulated air inlets must be arranged such that exhaust
from the vehicle engine or the heater cannot be drawn in un-
der normal operating conditions. Structural measures must be
taken in order to ensure that the heating air that is led into the
interior of the vehicle cannot be contaminated.
Warm air distribution
Fire hazard or risk of malfunction if installed incorrectly
or if parts other than original Truma parts are used for
the warm air distributor.
– Use only original Truma parts for the warm air distributor.
– Follow the installation instructions when installing the
warm air distributor.
– It is not permissible to operate the appliance without a
warm air duct.
Most of the warm air is led into the floor area of the living
compartment via flexible ducts.
The 4 connections on the appliance are designed for the
65 mm diameter ÜR duct (part no. 40230-00). The appliance
is only tested and approved with these components.
If the warm air duct has to be subjected to a considerable
amount of bending immediately behind the warm air outlet of
the appliance in confined spaces, we recommend the use of
the BGC 90° elbow BGC (part no. 34091-01). This elbow makes
it possible to connect a ÜR warm air duct with a diameter
of 65 mm or a VR warm air duct with a diameter of 72 mm.
Figure 11
With a duct length of less than 2 m the air outlet must not be
installed higher than the warm air duct connection. With a
duct length of less than 50 cm, the duct must create a siphon
between the connection and the outlet.
L ≤ 50 cm
L ≤ 50 cm
Figure 12
These measures prevent undesirable heating of the vehicle
due to convection (cowl effect) during operation in summer.
The ducts for warm air distribution must be firmly insert-
ed into the connections. A clip is attached to each con-
nection to provide a more secure grip.
For optimum warm air distribution, Truma always recommends
using the 4 warm air outlets of the heater. If only 3 warm air
outlets are needed, one of the lower warm air outlets must be
sealed with a blank cover VD-Combi (part no. 34310-01). The
blank cover must be firmly pushed into the moulded part of the
heater until it audibly engages and is firmly seated. Check for
firm seating.
If all four warm air outlets are being used, one closable
end outlet EN may be installed in
one
one warm air
branch. If only three warm air outlets are being used, it must
be ensured that if a closable end outlet is being used (in a
bathroom, for example), a second non-closable nozzle is in-
stalled in the warm air branch.
In order to prevent heat accumulation when using the
Combi 6 (E), all 4 warm air connections must be con-
nected. The cross-section of the warm air ducts must not be
reduced by duct connections or the like. If a closable EN end
outlet is installed in a warm air branch of the Combi D 6(E)
(e.g. in the bathroom), a second non-closable nozzle should
be installed in this warm air branch.
