TP-5982 4/06 17Section 3 Cooling System
3.2.4 Waterlines
Waterlines from the seacock to the engine-driven
seawater pump are usually constructed of flexible hose
or copper tubing. Use a flexible section of hose for
connection to the seawater pump to allow for vibrational
motion of the generator set during operation. Support a
nonflexible waterline within 102 mm (4 in.) of its
connection to the flexible section.
Keep the seawater hose as straight and short as
possible. If the hose is too long, usually over 4.6 m
(15 ft.), water draw problems may occur. See Section 7,
Installation Drawings for the inlet waterline hose size
and the seawater connection to seawater pump inlet.
Avoid running the inlet pipe above the generator. See
Figure 3-5, Figure 3-6, Figure 3-7, or Figure 3-8 for the
seawater connection to the seawater pump inlet.
1
ADV6395A-K
1. Seawater pump inlet (opposite side)
Figure 3-5 Seawater Inlet Connection (5/7.3E)
1
ADV7025A-A
1. Seawater pump inlet (opposite side)
Figure 3-6 Seawater Inlet Connection (5/7.3ECD)
1. Seawater inlet
1
ADV6817-B
Figure 3-7 Seawater Inlet Connection (10/13/15EG
and 13/15EGZ)
1. Seawater pump inlet
1
ADV6382A-E
Figure 3-8 Seawater Inlet Connection (15/20C)
3.2.5 Closed Heat Exchanger
Closed heat exchanger cooling is the best alternative for
most applications. See Figure 3-9 for a typical
installation. Provide service accessibility for the heat
exchanger pressure cap.
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