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2 INSTALLATION
2.1
INSTALLATION OF THE COOLERS
2.1.1
General
Different from marine inter-cooling systems, marine keel-
cooling systems use an open -non pressurised-system.
Therefore the 12 mm overflow pillar on the expansion tank
should stay open. A piece of hose can be used to drain
redundant liquid that is thrown out because of the
expansion of the liquid in the system. When open the
expansion tanks can easily release air that is ventilated by
the different connections.
Figure 2: The exhaust manifold to be ventilated into the
expansion tank
Bottom mount
Figure 3: Bottom mount and side mount box cooler
EN / WhisperPower keel cooling / September 2010
It is necessary to ventilate the exhaust manifold. The
exhaust manifold has a cap that let the 8 mm connection
open to ventilate the manifold. There is a 8 mm inner
diameter high temperature resistant synthetic hose in the
delivery to connect the hose connection on the side of the
filling cap of the manifold with the expansion tank. This
hose can go down first through a hole one has to drill in
the lower green part of the soundshield canopy and than
up again to the expansion tank. (refer to figure 2).
2.1.2
Location of the box-coolers
Box-coolers can be installed in the bottom or in the side of
a steel vessel. A hole is made in the hull and the box
cooler is welded in this hole. When the box is on the
bottom a connection has to be made from the top of the
cooler to the side of the ship to release the air and
optimise the flow of water through the cooler. A 90° elbow
is in the box cooler kit. (refer to figure 3).
2.1.3
Ventilation and expansion tank
Special attention should be spent to the ventilation of the
systems. Each installation system is standard supplied
with an expansion tank for the coolant, that is also used to
release air bubbles and makes it possible to add coolant to
the system in an easy way. This expansion tank should be
at the highest point of the system.
Side mount
INSTALLATION
5
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