INSTALLATION
MANUAL
Section 3: COOLING INSTALLATION
3.3 Connecting Seawater to Heat Exchanger
1) Connect seawater from installer supplied pump to lower 3/4ā (19 mm) hose barb on heat
exchanger. Use the same practices as other below waterline seawater plumbing. Required flow
rate is 4 GPM (16 LPM) minimum and 8 GPM (30.3 LPM) maximum.
2) Connect seawater discharge (upper hose barb) to overboard drain. Use the same practices as
other below waterline seawater plumbing.
3) In addition to initial operation at dock, new gyro installations should be checked for minimum 4
GPM (16 LPM) flow while vessel is at speed and when backing down. If no other method of
confirming flow is available, discharge line may be temporarily diverted to a bucket. Flow is
calculated from time to fill a known volume.
4) Inspect raw water plumbing after sea trial for any signs of leakage.
5) Heat exchanger contains removable end-caps to provide access for cleaning the tube bundle.
FIGURE 4 ā SEAKEEPER 26 SEAWATER CONNECTIONS