Mase I.S. 24, Инструкция по использованию, обслуживанию и монтажу

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IS 24 - 27 - 25T - 30T - 34T
- 20
GB
GB
1 2
3.5 C
OOLING WATER CIRCUIT
The generator engine is cooled by an open-circuit
system in which seawater circulates.
At the time of installation, a seawater feed circuit
must be arranged for cooling, and an exhaust system
for the combustion gas and water mixture.
3.5.1 S
EAWATER FEED SYSTEM
Two water intake systems are normally adopted on
boats:
-Direct intake system (ref.1).
-System with baffle (ref.2).
ma s e
recommends using the direct intake system
(ref.1), since it prevents intake of pressurised water into
the intake ducts, instead generating a vacuum easily
overcome by the water pump head of the generator.
Do not fit any type of protection cap on the direct
intake system.
The system with baffle (ref.2), on the other hand, may
cause the following problems:
a- If mounted with the slots facing the bow:
In this case, during navigation and with the generator
off, pressure is created in the water intake duct, which
may cause the system to fill up until reaching the exhaust
port, thus making it possible for water to enter the
cylinders.
b- If mounted with the slots facing the stern:
In this case, during navigation a vacuum may be created
in the water intake duct such as to inhibit the water pump
to activate the cooling system or such as to limit the
flow rate with consequent overheating of the generator.