Truma Trumatic E 4000 A Gebrauchsanweisung, Einbauanweisung Seite 19

Double cowl duct connection to the heating
appliance
Slide clip (7) over the pipes. First
compress the exhaust duct (1)
so that the coil windings are
pressed against each other. Slide
the clamp (4) over the exhaust
duct (1). Slide the exhaust duct
onto the connection fitting (2) over
the O-ring. Engage the clamp (4)
and screw tight. Secure the air
intake duct (5) on the connection
fitting (6) with clamp (7).
Inside installation with roof cowl set
See installation variant Fig. 2 (page 2).
Install roof cowl on a surface which is as straight as possible,
with wind flow from all sides. From the appliance to the cowl
it must be possible to have a direct duct route rising over the
entire duct length (max. 2 m)!
Assembling the condensate trap
A condensate trap has to be in-
stalled between the heater and the
double duct to allow condensation
water and rain water to drain away.
The exhaust gas double duct
must not sag – the conden-
sate trap must be the lowest point!
Fully open the clamp (4) and slide
over the O-ring onto the exhaust
gas connection fitting (2). Slide the
exhaust coupling (17) over the O-
ring onto the exhaust gas connec-
tion fitting (2 – if the condensate
trap is installed on a level with the
heater, the drain (18) must be fac-
ing down). Engage the clamp (4)
and screw tight. Tighten the drain
(18).
Assembling the roof cowl
Drill a hole (8) with diameter
83 mm (any hollow compartments
in the vicinity of the cowl hole
should be lined with wood). Seal
with rubber seal supplied (22).
Coat textured surfaces with a plas-
tic coachwork sealing agent (not
silicon).
If the roof cowl is relatively thick, first connect the exhaust gas
double duct from the outside onto the cowl. Slide the rubber
seal (22) and clamp (4) onto the inner cowl section (23). First
compress the exhaust duct (1) so that the coil windings are
pressed against each other, then slide over the O-ring onto the
connection fitting (24). Engage the clamp (4) and screw tight.
Slide the air intake duct (5) onto the serrated connection fit-
ting and secure with the black screw (25).
Fasten the cowl section (23) with 6 bolts (26). Mount cowl
roof (27) and secure using 2 bolts (28).
The exhaust vents in the cowl roof must face at right-
angles to the direction of travel.
Always keep the cap (29) on when the heater is not
operating.
Double duct connection to the heating
appliance
Press end of exhaust duct (1) together so that winding touch-
es winding. Slide clamp (4) over exhaust duct (1). Pass the ex-
haust duct (1) via the O-ring and fit it to the exhaust coupling
(17). Engage the exhaust duct tightener (4) onto the exhaust
coupling (17) and secure. Take the connection fitting (19) with
the wide side over the exhaust duct and slide it firmly onto the
air connection fitting (6) on the heating unit. Line up the open-
ing in the connection fitting (19) with the drain (18). Screw in
and tighten connection fitting (20).
Slide the air intake duct (5) firmly onto the connection fitting
(19) and fasten with duct clamp (7).
Drill a 10 mm diameter opening in the vehicle floor for the
condensate hose (21). Fasten the condensate hose onto the
connection fitting (20) and pass it through the opening.
Due to the risk of frost in winter, the hose should not
project more than 2 cm below the vehicle floor!
Under-floor assembly with wall cowl kit
Refer to installation variant Fig. 5 (page 2).
Install wall cowl on as flat a surface as possible on an outside
wall (vehicle apron) (refer to "Inside installation with wall cowl
set").
If the wall cowl is installed using mounting brackets, or
such, under the floor, the vehicle floor must be sealed
tight (refer to "Interior installation with floor cowl").
Interior installation with floor cowl
Refer to installation variant Fig. 3 (page 2).
When using the floor cowl always observe any restrictions
given in the country-specific regulations.
The appliance is only to be assembled in upright position. In ve-
hicles designed for residential purposes or in vehicles with areas
frequented by persons on a short-term basis, the vehicle floor
must be sealed tight and is to have no openings to the interior,
e.g. vent openings for refrigerators, unsealed pedal openings,
ventilation valves, hollow double floors. The ventilation opening
for the gas cylinder box is not to be in the floor, it must be rout-
ed to the side, directly above the floor, through the outer wall.
The floor cowl is not to lie within the splash range of the
wheels (apply splash guard, if necessary) and it must be free-
standing so as to prevent supports, axles, cross arms and
such from impairing the correct operation. In addition, at least
three sides beneath the vehicle floor must be open in order to
ensure unhindered escape of the exhaust gas.
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