Product Manual

12
Securing the device
Check whether the vehicle has a load-bearing floor or false
floor for securing the heater. If the floor is unsuitable, create a
load-bearing surface beforehand by gluing a plywood board
to the floor, for example.
Screw heater to vehicle floor or false floor using four B 5.5 x 25
screws (included in scope of delivery). Depending on the
situation, it may be possible to secure the heater with three
screws; in this case, always screw aluminium feet (a) and
selectively one of the plastic feet (b) to the vehicle floor.
a
a
b
b
Fig. 14
The heater must be screwed to the floor of the
vehicle or the false floor in order to prevent the
gas system from becoming damaged because of move-
ment while driving!
Exhaust gas removal
Only Truma exhaust duct AA 3 (part no. 39320-00) and
combustion air infeed ZR 80 (part no. 39580-00) may be
used for the Combi 2 E / 4 E (Australia) heater because the
unit was tested and approved only with these ducts.
Do not crush or kink these ducts during installation.
The roof cowl is available as an accessory to the heating
device – assembly instructions are enclosed with the
delivery.
Installing the wall cowl
Permissible duct lengths
The length specifi cations refer to the combusti on air
intake duct.
Ducts with a length of at least 60 cm to a maximum of
100cm can be routed with any amount of rise for the wall
cowl, or with a maximum fall of 20 cm.
Duct lengths from 100 cm to max. 200 cm may only be
installed rising.
max.
20 cm
max. 100 cm
6
0
1
0
-
0
m
c
1
0
0
-
2
0
0
c
m
max. 100 cm
1
0
m
0
c
Fig. 15
350*
180
1
2
500*
500*
12*
540*
10*
10* 10*
3
5*
10*
Fig. 11
* Minimum dimensions – additional space must be provided for
the gas connection, water connections and the FrostControl
depending on the installation situation. All dimensions in mm.
The cowl must be placed in such a way that exhaust gas
cannot find its way into the vehicle interior.
The cowl must be in the form of a wall or roof cowl
Fig. 12
The wall or roof cowl must be attached so that there is no
fuel tank filler neck or fuel tank breather opening within
500 mm(R). There must also be no living area ventilation
openings or window openings within 300 mm.
300 mm
R
Fig. 13
If the cowl is being installed directly underneath a
window that will be opened, installation of an electric
window switch (part no. 34030-34700) is recommended.
Information about roof windows
In the case of roof windows (pop-out), the cowl top needs to
protrude at least 10 cm above the opened window. If the cowl
is next to the window, steps must be taken to ensure that,
depending on where it is installed (opened on the right or left),
no exhaust air can enter the open window (e.g. via wind) and
that the cowl has a good supply of incoming air.
Refer to AS/NZS5601.2 – Gas Installations, for location re-
quirements of the flue terminal.