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Figure 13: Connecting the expansion tank
When both radiators are flat mounted on the roof, the
expansion tanks should be mounted a little higher (Figure 14
detail B).
Figure 14: Low profile radiator assembly on the roof
Most cooling problems originate from air traps
blocking the circulation of the engine coolant.
It is very important to use high quality heat
resistant hose and fittings. Therefore it is strongly
advised to use WhisperPower installation kits.
W-SQ 27 kVA / 25 kW — October 2014 — EN
2.5.2.2
How and where to mount the radiator
The radiator kit includes rubber mountings to prevent
vibrations to be transferred to the body of the vehicle
(Figure 15). Due to the difference between vehicles general
instructions are not available. One has to find out where the
best place for mounting is. For OEM customers WhisperPower
can supply a special customized installation kit.
Figure 15: Radiator on rubber mountings
Bottom mounted radiators
When bottom mounted, the radiator should not be the lowest
point of the vehicle to avoid damage.
A free flow of air should be guaranteed. When horizontal
mounted, the fan should be on top, which causes a flow of air
downwards. Often it is possible to find a place where extra
space above the fan helps to create a free flow of air. It is
recommended to make a shield below the radiator to catch
stones and dirt and operates as a spoiler. The distance between
the radiator and the shield should be at least 50 mm.
Sometimes it is possible to build the radiators and shield on a
sub frame that is mounted below the vehicle as a module.
Measures have to be taken to prevent the hot air
from circulating and reducing the capacity of the
radiators (Figure 16).
Figure 16: Bottom mounted radiators with shield
INSTALLATION
9
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