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For avoiding the risk, the water intake entrance must be fitted facing the rear position and even
so, in critical sailing conditions the internal valve must be closed when the generating set is not in
operation.
Sea Water Intake Installation
Considering the water intake / safety valve / strainer and partially the seawater hose are fitted
below the seawater line and inside them remains trapped seawater, must be considered the height
between the seawater line and the water pump fitted on the generator that must be
no more than 60
cm.
If it is more, it must be considered either a goose neck long the seawater pipe to trap seawater or
install an additional electric seawater pump.
Installation below the sea level without a proper cooling pipe goose neck and vacuum siphon
break valve.
If the set installation surface is just a little below the external sea water level but can be
guessed that while sailing the difference is further increased, must be foreseen an external goose neck
pipe with siphon break valve, on the contrary drop by drop an internal leakage through the pump
clearance, fills the exhaust pipe with the same above explained result. For relevant level difference the
leakage occurs when the boat is not sailing too.
The vacuum siphon-break valve must be fitted out of the hood, on a prolonged pipe, as more
high as possible and in any case above the sea level, in connection to a cooling pipe at the engine pump
delivery side, namely in pressure zone. On the several sets the pipe to be prolonged can be different,
but each one chosen at the pump delivery side, is suitable.
