Exhaust And Combustion Air Ducting; Permissible Duct Lengths; Assembly Of Wall Cowl - Truma Combi D 6 Einbauanweisung

Exhaust and combustion air ducting

Only Truma duct sets (consisting of an exhaust muffler, an
extraction air duct and an air intake muffler) must be used for the
Combi D heater, since the appliance has been type tested with
these ducts. Do not pinch or kink these ducts during installation.
The following pipe sets are available:
Duct set 60 cm part no. 34501-01 *
Duct set 70 cm part no. 34501-02
Duct set 100 cm part no. 34501-03
Duct set 150 cm part no. 34501-04
* suitable for extremely small installation compartments

Permissible duct lengths

Duct lengths of between 60 cm (min.) and 150 cm (max.) can
be used with the wall cowl.
5
4
The length of the exhaust muffler (4), the extraction air
duct (5) and the air intake muffler (7) can be measured
on a sample for series installation (fixed lengths). The exhaust
and air intake muffler can be shortened in isolated cases. In
this case the inner duct (4a) of the exhaust muffler (4) must
be fixed using a new lock washer (6 - part no. 34020-45200).
Truma supplies the lock washer tool as an installation acces-
sory (part no. 34020-45000).
A minimum exhaust muffler (4) bending radius of 8 cm must
be taken into consideration when the exhaust duct is being
dimensioned.

Assembly of wall cowl

Assemble wall cowl on a surface which is as flat as possible
and which is exposed to wind from all directions.
Wall cowl cut-out
Fix installation template (part no. 34020-42000) to outside wall
of vehicle. Mark wall cowl holes and cut-out. Remove tem-
plate, drill holes and make cut-out.
Before drilling, always check for underlying / concealed ca-
bles, gas lines, frame sections and the like!
If necessary, line vehicle wall around opening with a suitable
material so that the mounting screws can obtain an adequate
amount of grip!
7 5, 4
8
60 – 150 cm
5
4
6
4a
Fit outer part of cowl
Fill groove on outer part of cowl (8) with plastic body sealant
(not silicone), then secure outer part of cowl to wall of vehicle
with 4 screws.
8 TOP OBEN
Fit exhaust muffler to cowl
– Slide clamp (15) onto extraction duct (5).
– Fit exhaust muffler (4) to cowl
(gas-sealed side facing unit – indicated by O-ring – 13).
– It is imperative for the exhaust muffler (4) to be pushed into
the exhaust duct muff (14) as far as it will go.
– Check from the outside that exhaust muffler (4) is firmly
seated in muff (14).
– Secure exhaust muffler (4) in muff (14) with screw (3.5 x
13).
– Slide extraction duct (5) onto extraction duct muff (16) as
far as it will go and secure with clamp (15). For lengths ex-
ceeding 60 cm, secure to wall with at least one ZRS clamp
(part no. 39590-00).
16 14
Please ensure that the exhaust muffler is firmly seated
in the exhaust duct muff before installing the cowl cover.
Then secure the cowl cover (17) to the outer part of the cowl (8)
with 4 screws.
8
3.5 x 25
14
4
3,5 x 13
5
4
15
4 x 12
17
13
15