Truma Trumatic E 4000 A Gebrauchsanweisung, Einbauanweisung Seite 20

Assembly of the floor cowl
The rectangular opening for the exhaust gas outlet (30) must
be right-angles to the direction of travel.
No modifications must be
carried out to the floor cowl!
Drill an 83 diameter opening in
the vehicle floor. Coat the space
between the cowl and the vehi-
cle floor with plastic coachwork
sealing agent (31) – do not use
silicone! Secure the floor cowl (32)
with 4 screws (33).
Outside installation with floor cowl
Refer to installation variant Fig. 4 (page 2).
The appliance is only to be assembled with cowl connec-tion
fitting pointing vertically down. The appliance can be installed
on the outside of the vehicle, on a perpendicular wall (e.g.
on the cab rear wall or on the body fire wall of a truck). In ar-
ticulated vehicles always pay attention to suffi-cient spacing
between the cab rear wall and the semi-trailer (observe rotary
and articulation movements).
Assembly of the floor cowl
Slide the cowl (32) over the O-ring
onto the exhaust gas connection
fitting (35) on the heating unit. The
side-facing rectangular openings
(30) must be at right-angles to
the direction of travel. Apply four
flange borings to the heater cas-
ing, drill through them with a short
drill 2.5 mm in diameter and fasten
the cowl with 4 screws (33).
Fastening the heating appliance
Inside installation with wall cowl or roof cowl
Depending on the installation site, bolt the heating appli-
ance securely with the fastening straps (a) or angle pieces (b)
supplied.
20
Inside installation with floor cowl
Where a floor cowl is used, place
the appliance on the cowl opening
and screw tight with 4 angle pieces.
Outside installation
Assemble with the aid of the
asembly mount. Fasten both
mounts (36) securely and firmly to
the vehicle with through bolts not
less than M 5 in size. Fasten the
U-beam (37) to the outside of the
heater with the bolts supplied (38).
Fasten the heater with 4 M 6 x 10
bolts (39) and self-locking nuts.
Fasten two protective caps (40) to
the outside of the vehicle.
In order to drain condensation water, drill a hole 8 mm in di-
ameter at the lowest point in the heater casing some 20 mm
from the edge. Ensure that the drill does not penetrate more
than 10 mm in order to prevent damage to any internal com-
ponents. Insert the rubber grommet (d) supplied (it extends
about 4 cm downwards).
Warm air distribution and circulating air
return with interior installation
Warm air distribution
Warm 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 construc-
tion 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
compartment, from the vicinity of the exhaust or the exhaust
outlet of the heater.)
The warm air (W) is expelled
from 2 vents, either directly or
via a warm air duct VR (diameter
72 mm).
From the appliance to the first air outlet install only VR duct
(72 mm diameter) with a maximum length of approx. 1.5 m.
To prevent overheating, the first air outlet must be non-
sealable (swivelling vent SCW 2, end support EN-O). ÜR duct
65 mm diameter) can also be laid after the first air outlet. Hot
air ducts whose surface temperature exceeds 80 °C (especially
as far as the first air outlet in the case of the E 4000) must be
protected from contact by cladding with a duct insulator (such
as Truma l 80). Secure all duct connections with self-tapping
screws. Fasten ducts with clamps.
The warm air system is designed for each type of vehicle indi-
vidually, on a modular basis. There is an extensive accessories
program available (refer to brochure). Diagrams with optimum
installation suggestions for warm air systems in all of the most
popular motor home models can be requested free of charge
via the Truma service centre.