Heat Exchanger Cooling - Wet Exhaust - Beta Marine Beta 14 Installation Manual

ENGINES WITH HEAT EXCHANGER COOLING
Sea Water Level
Heat Exchanger cooling takes in sea water through the
bottom of the hull via a seacock with a strainer, to the
seawater pump mounted on the engine. The seawater is
pumped through piping on to the heat exchanger where
it passes through the cupronickel 'tubestack'; first though
the bottom pipes, then back through the top pipes before
exiting via the exhaust injection bend. From the injection
bend the seawater falls into the waterlock and is then
When leaving the vessel for an extended period: turn off the sea-cock if heat exchanger cooled and isolate
the starter battery.
13 Heat Exchanger Cooling
blown by the engine exhaust through a 'gooseneck' and
out of the stern of the boat. The engine cooling has a
closed circuit that uses a coolant solution of 30 > 50%
Anti-freeze and 70 < 50% fresh water. This coolant
circulates round the engine collecting heat and transfers
the heat to the seawater in the heat exchanger as it
circulates around the outside of the cupronickel 'tubestack'
pipes.
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