CWS Basic 121-161-201-251
2- SEAWATER CIRCUIT
2.1 - Sea-water pump
The sea-water pump is needed to circulate the given water quantity throughthe refrigerant sea-water exchanger for boat. The sea-water pump should also be
quiet, continous duty rated, of marine grade construction material for boat.
2.2 - Location
A- The pump should be installed with the shaft in
horizontal position and the water outlet at top. The
centrifugal pump must be installed at least 0,50 m
below the water line. B - The water intake must be "scoop" type, oriented
forward.
STERN 0,5 m BOW
C - Seacock, strainer and pump intake should be
connected without siphoning; the piping should
always rise from seacock to the pump. D - The intake line should be as short as possible (it
is very difficult to run a good circuit with an intake
piping longer than 1 m). E - The outlet line of the pump should rise at least
for 25 cm (10 in.) just after the pump outlet in order
to keep the pump primed at all times. 25 cm
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