Cooling System
The engines are water cooled and have seawater-
cooled heat exchangers. Coolant is circulated through
the freshwater system by a belt-driven circulation
pump. Seawater from the heat exchanger passes out
through the exhaust system (wet exhaust system).
The cooling system installer is responsible for ensur-
ing the cooling system functions in accordance with
the installation instructions in this manual.
The cooling system must be dimensioned generously
enough to guarantee that cooling performance is not
affected by fouling and repainting even after a long
period of operations.
Pipe and hose diameters specified in the installation
instructions must be regarded as recommendations.
The only way to determine if the installation is correct
is by checking pressures, temperatures and flow with
the engine running. Contact Volvo Penta in the case
of uncertainty.
Carefully plan the location of connections so that they
are accessible. Lines must be arranged so that they
are as short as possible.
In order to reduce corrosion to a minimum the correct
combinations of materials must be used in pipes and
valves etc., and a correctly dimensioned, pressurized
expansion tank. Electrolytic corrosion can occur when
two dissimilar materials are in contact with each other
and are placed in an electrolyte such as moisture or
seawater.
Use genuine Volvo Penta accessories and spare
parts whenever necessary. Accessories are descri-
bed in
Volvo Penta Spare Parts Accessories
. Make
sure that parts not supplied by Volvo Penta do not
reduce or impede pressures and flows in the engine.
Lines that have insufficient diameters, unsuitable
runs, incorrect connections, etc. will cause a reduction
in flow and lead to abnormal engine temperatures.
Only coolant specified by Volvo Penta may be used.
Coolant type affects engine cooling performance and
its corrosion protection.
Installation, Volvo Penta IPS
100
47704162 10-2014 © AB VOLVO PENTA
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