13
Fig. 10
4.2.2 Height of ventilation
Minimum height of ventilation
roof vent
Flue kit
3776
H
In the event of high ambient temperatures,
full performance of the cooling unit can
only be achieved by means of adequate
ventilation and extraction.
A correct installation of the refrigerator is
essential for its correct operation, as due to
physical reasons heat builds up at the back of
the appliance which must be allowed to esca-
pe into the open air.
4.2.1 Ventilation and air extraction of
the refrigerator
4.2 Ventilation
Ventilation is provided for the unit by means of
two apertures in the caravan wall. Fresh air
enters at the bottom, extracts the heat and
exits through the upper vent grille (chimney
effect).
Dometic recommends the larger LS 300
(L500, NZ) side ventilation grilles be used for
both the top and lower side ventilation of the
refrigerator. Alternatively, the installation of the
lower ventilation grille (LS 300 / L500) with the
roof exhaust is also acceptable.
The ventilation grilles must have an open
cross-section of at least 450 cm². This is
achieved by using the Dometic LS300 / L500
absorber ventilation and air extraction system
which has been tested and approved for this
purpose.
The upper ventilation grille should be posi-
tioned as high as possible above the con-
denser (A, Fig. 11) . Install the lower venti-
lation grille at floor level of the vehicle (Fig.
9), allowing unburnt gas (heavier than air) to
escape directly into the open air. The gas bur-
ner must be located above the edge (1, Fig.
9) .
Should this arrangement prove impossible,
a ventilation aperture greater than 40 mm Ø
must be introduced by the manufacturer of
the vehicle into the recess floor in order to
avoid the accumulation of unburnt gas on
the floor.
Installation of roof exhaust vent and lower
ventilation grille LS300 / L500.
Minimum height of ventilation H
1.
üüü
üüü
Roof exhaust vent
1250 mm
2.
üü
üü
Upper vent grille LS300/L500
Height of fridge
Installation
LS300
or
L500
(NZ)
Fig. 9
1
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