6.3Ventilation and extraction
A correct installation is important for correct operation of the appliance to ensure, there is no
In the event of high ambient temperatures, full performance of the cooling unit can only be achieved by means of adequate ventilation and extraction.
Minimum height of ventilation
Stopper
R500 
strip with profiled joint
A
H
Stopper
strip with
L500profiled joint
Fig.1
L500
ofventilation |
|
|
Minimum height |
| H |
|
| |
|
|
L500
Stopper strip with profiled joint
A
Stopper strip with profiled joint
Fig.2
Installation of lower ventilation
grille (L500) with roof exhaust (R500).
Minimum height of ventilation ( mm) H
Installation of lower and upper ventila- tion grilles (L500).
A. | ϑϑϑ | B. | ϑϑ | |
Roof exhaust R500 | Upper ventilation L500 | |||
Lower ventilation L500 | Lower ventilation L500 | |||
1250 |
| 1400 |
| |
|
|
|
| |
C.ϑ
Upper ventilation L500 Lower ventilation L205 (no mosquito net)
1400
The unit is ventilated through openings in the wall or roof of the vehicle.
(Fig. 1 and Fig. 2). Fresh air enters at the bottom and the warmed air flows off through the upper ventilation grille (flue effect). The side walls of the ventilation shaft should be local to avoid the build up of condensation and drafts. The parts of the shaft walls, which are situated above and next to the exhaust for the combus- tion gases, must be made of highly inflammable material. The upper ventilation gril- le should be positioned as high as possible above condenser (A) (observe mini- mum ventilation heights). 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. If such an arrangement is not possible a hole must be provided under the refrigerator (not close to the burner) so that any leaking LP gas can esca- pe. This must have an effictive area of at least 13cm². It is desirable to fit the hole with wire mesh or similar, and an angle plate to protect it from stones, mud etc., the wire mesh must not reduce the effective area of 13cm2 (EN1949). The ventilation grilles must have a free cross section of at least 400cm2. Here it should be noted that protective insect nets behind the ventilation grilles can reduce the free cross section by up to 50%.
Correct mounting of the lower ventilation grille facilitates the access to the electrical and gas connections during maintenance work.
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