540
9
HYDRAULIC SYSTEMS
Studio ti 03312 540-04usa
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9.5 SEAWATER SYSTEM
The onboard seawater systems are following:
− Engines cooling system, consists of two circuits, one for the
starboard engine and the other for the port engine. Seawater is drawn
directly by the inner pumps of the engines, by means of a intake
seacock equipped with cut-off valve and filter. The water sucked by
the engines, flows through the strainers and is then delivered to the
heat exchanger of the stabilizers and to the heat exchangers of the
engines, and then discharged overboard. Moreover, suitable circuits
branches allows the cooling of the seals at shaft output and the
cooling of the exhaust manifolds.
− Generators cooling system. Sea water is sucked directly by the
generator pumps through sea cocks equipped with cut-off valve and
strainer. The water sucked by the generators flows through the filters
and is then delivered to the heat exchanger of the generators and
drained overboard.
− Sea water system for washdown, consists of an electric pump that
sucks seawater through a intake seacock equipped with cut-off valve
and filter and delivers it to the washdown faucets.
The seawater washdown system will make the cleaning of fish, fish
boxes, and the cockpit area while at sea easier. The system is also an
integral part of the live well system.
− Live Bait Well System (optional)
The live well will keep bait alive only when it is operating and aerating
the water. When the water in the live well reaches the drain near the
top of the tank, the excess water will drain overboard.
To operate the live well:
• turn on the seawater washdown pump;
• open the water supply valve located near the overhead in the
machinery room;
close the live well drain valve located near the supply valve.
To drain the live well after use:
• turn off the washdown pump or close the water supply valve;
• open the drain valve.
− Cooling system for air conditioning. Seawater is drawn directly by
an electric pump by means of a intake seacock equipped with cut-off
valve and filter. The sucked water is sent to the heat exchanger of the
air conditioner and then discharged overboard.
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WARNING
The seawater faucets are clearly labeled to prevent the accidental use
of seawater for drinking or cooking. Do not use this system for fighting
electrical fires, because of the potential for shock hazard.
NOTICES
The seawater system should always be switched off when the boat is
left unattended.
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