Intellitec W-GV/2, Руководство по установке

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INSTALLATION
8
W-GV/2, W-GV/3, W-GV 8 and W-GV 10 —
March
2015 — EN
2.8 RADIATOR COOLING
2.8.1 General instructions
The radiators can be mounted below the floor, in the side or on
the roof of the vehicle. It is recommended to install the radiator
as close as possible to the unit. The piping should be fitted as
direct as possible.
It is very important to use good quality heat and
pressure resistant hose and fittings. Therefore it
is strongly recommended to use WhisperPower
installation kits.
2.8.2 How and where to mount the radiator
The radiator kit includes rubber mountings to prevent
vibrations from being transferred to the body of the vehicle.
Due to the differences between vehicles general instructions
are hard to give. For OEM customers, WhisperPower can supply
a customized installation kit.
When mounting the radiator it is important to take care that
the outgoing connection, which is the connection to the engine
inlet, is on the top position (Figure 15, detail A) and is
connected to the expansion tank. Also when the radiator is
mounted flat at the bottom of the vehicle the outgoing
connection is connected to the expansion tank. This is the best
way to have the system release air and to add liquid when
necessary.
2.8.3 Bottom-mounted radiator
When bottom-mounted, the radiator should not be the lowest
point of the vehicle to avoid damage.
A free flow of air should be ensured. When horizontally
mounted, the fan should be on top, causing 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 fit a shield below the radiator, catching
stones and dirt and operating 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 10: Bottom-mounted radiators with shield
2.8.4 Side-mounted radiators
Both effective and easy is to mount the radiator in the side of
the vehicle, if possible below the level of the top of the engine.
A louvered grid should protect the radiator from rain and
objects, but must not block the airflow. The fan should be
inwards, causing the air to blow outwards. A disadvantage of
having the radiator in the side is possibly more noise from the
electric fan and a flow of air that could be felt by people passing
by.
A free flow of air should be ensured.
Figure 11: Side-mounted radiator
2.8.5 Roof-mounted radiators
The radiator on the roof is often the best option from the point
of view of keeping the noise of the fan away from people and it
will give the best result in dissipating the heat. However, this
option may conflict with the possible need to keep the vehicle
as low as possible.
Another disadvantage is that the piping has to go through the
roof which requires connections to be made waterproof. When
having the radiators horizontally mounted on the roof
(Figure 12) enough space (50 mm) should be between the roof
and the radiator fan to have a free flow of air. When the
radiator is roof-mounted there should be protection against
weather conditions. To avoid damage while the vehicle is
driving at high speed, the use of a spoiler may be necessary.
Figure 12: Two examples of top mount radiators
2.8.2 How and where to mount the expansion tank
When the radiators are above the engine, the piping should be
fitted below the top of the radiators! (see Figure 13). Bends in
the piping that can trap air bubbles, should be avoided or
ventilated (see Figure 14). The expansion tank must be fitted in
the outgoing circuit of the radiator, i.e. the inlet pipe of the
engine