Double Cowl Duct Connection To The Heating Appliance; Under-Floor Assembly With Wall Cowl Kit; Fastening The Appliance; Warm Air Distribution And Circulating Air Return With Interior Installation - Truma Trumatic E 2400 Instrucciones De Uso

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Double cowl duct connection to the
heating appliance
Press end of ex haust duct (1) together so that winding touch-
es winding. Slide clamp (4) over exhaust duct (1). Slide ex-
haust duct over O-ring on the connection fitting (2) up to the
collar (3). Attach with clamp (4) in such a way that the knurled
edge of the clamp encloses the collar. Fasten combustion air
supply duct (5) on the connection fitting (6) using clamp (7).
Always install a new O-ring following any disassembly!

Under-floor assembly with wall cowl kit

Refer to installation variant fig. 2 (page 2).
Install wall cowl on as flat a surface as possible on an outside
wall (vehicle apron, refer to "Notes on installation in driver's
cab").
If the wall cowl is fitted with fixing brackets or similar
below the floor, the vehicle floor must be airtight and
the waste gas must always be guided up to the side wall (see
„Choosing the installation place").

Fastening the appliance

Screw the 3 fastening strips (1, 2 + 3) to the appliance. Screw
appliance to vehicle floor with the strips 1 + 2. Fasten assem-
bly bracket (4 – Accessories part. no. 39050-74000) together
with strip (3) and screws (5). Place lock washers under all
screw heads and nuts.
Warm air distribution and circulating air
return with interior installation

Warm air distribution

Hot air suction apertures must be arranged in such a way that
no exhaust gases from the engine or the heating device can
be drawn in. It must be ensured by means of construction
design that the heating air introduced into the vehicle is not
polluted (e.g. by oil vapour). This is achieved, for example,
with air heaters with circulating air operation, both for interior
installations and for external installations (in heaters with fresh
air operation the fresh air is not to come from the engine com-
partment or from the vicinity of the exhaust or the exhaust
outlet of the heater).
The warm air (W) is blown out from the appliance, either
directly or using a warm air duct VR 80 (80 mm diameter).
Remove grating from warm air outlet of the appliance. Con-
nect duct VR 80 (80 mm diameter). By positioning a manifold
section, the ducts VR 72 (72 mm diameter), ÜR (65 mm diam-
eter) or ZR 18 (49 mm diameter) can also be added on.
In order to avoid overheating, there must be at least one
air passage which is always open (swivel nozzle SCW 2).
Secure all duct connections with self-tapping screws. Fasten
ducts with clamps.
The hot air system is individually designed for each vehicle
model using a modular principle. A wide range of accessories
is available for this purpose (see brochure). Diagrams with op-
timum installation suggestions for hot air systems in all of the
most popular motor home models can be requested free of
charge via the Truma service centre.

Circulating air return

The circulating air (U) is sucked back into the appliance, either
directly or via a duct piece VR 80 (80 mm diameter).
1. Direct intake: If the appliance is installed in a storage com-
partment or such, drill two holes measuring 75 mm in
diameter into it, or make a corresponding opening for the
circulating air return.
Do not obstruct the air passage to the appliance!
2. Circulating air outside the storage area can be drawn in
via a duct piece VR 80 (1) 80 mm diameter (max. 1 m in
length) and returned to the appliance. The storage compart-
ment can then be used to the full.
Remove protective grating from the connection fitting (3).
Insert duct piece (1) into the grating connection fitting and
fasten using the available screws. Attach swivel nozzle SCW 2
to the duct end (4).
W
U
Warm air supply and circulating air return
with outside assembly
Refer to installation variant fig. 2 (page 2).
The warm air supply and the circulating air return between
appliance and vehicle is provided by means of flexible air
ducts LF 18 (83 mm diameter, 60 cm in length). The air ducts
can be shortened as required. A protective casing over the
entire heater system protects it against damage and weather
conditions and simultaneously serves as insulation.
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1
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