25
Ventilation and extraction
A correct installation is important for correct operation of the appliance to ensure,
there is no build-up of heat at the back of the appliance. This heat must be allowed
to escape into the open air.
In the event of high ambient temperatures, full performance of the cooling unit
can only be achieved by means of adequate ventilation and extraction.
The unit is ventilated through openings in the wall of the vehicle (L 500). Fresh air
enters at the bottom and the warmed air flows off through the upper ventilation grille
(flue effect). The upper ventilation grille should be positioned as high as possible
above condenser (K). The lower ventilation grille should be flush with the floor of the
vehicle, allowing any gas leakages (heavier than air) to escape directly into the open
air. Should this arrangement prove impossible, a ventilation aperture must be introduced
by the manufacturer of the vehicle into the recess floor intended for the unit's installa
tion, in order to avoid the accumulation, on this floor, of any non-combusted gas which
might escape (according to EN 1949). The ventilation grilles must have a free cross
section of at least 400cm
2
. This is reached using the Dometic Absorber Ventilation and
Air Extraction System L500 that has been tested and approved for this purpose.
Dometic ventilation systems include installing frame, vent grille and winter cover.
The oven’s ventilation and exhaust extraction is realised with roof mounted flue outlet
only (Truma- roof flue outlet).
8.3
Correct mounting of the lower
ventilation grille facilitates the
access to the electrical and
gas connections during main-
tenance work.
Minimum height of ventilation H
B
Oven:
Truma-roof flue outlet
250 mm
Minimum height of ventilation H
K
Refrigerator:
upper ventilation grille L500
lower ventilation grille L500
1400 - 1500 mm
L 500
L 500
Truma-roof vent
Removable screen / grill
(for fixing of flue outlet)
ventilation aperture d= 40 mm
Minimum height of ventilation
H
K
K
H
B
10-20 mm
10 mm min
e.g.
Dometic
Vent Grille
Art.No. 44967
170 mm min
