MONTEREY
BOATS
RAW WATER SYSTEM
6.1 General
In the raw or sea water systems, all water pumps
are supplied by hoses connected to ball valves
and thru-hull fittings located in the in the bilge.
Always make sure the ball valves are open before
attempting to operate any component of the raw
water system.
The air conditioner uses a 120-volt AC sea water
supply pump. This is the only 120-volt AC pump in
the system and it is automatically activated when
the air conditioning or heating system is in use.
Priming the System
The intake for the air conditioner sea water pump
is equipped with a scoop and ball valve. If the
pump runs but will not prime after cleaning the
strainer or at the time of launching, make sure
the valve is open. If the pump still won’t prime,
it may be air locked. Make sure the valve is open
and run the boat at or above 15 M.P.H. The water
pressure from the scoop will force the trapped air
through the pump and allow it to prime. If this
procedure doesn’t work, contact your Monterey
or Marine Air dealer.
Closing the thru-hull ball valves before the boat
is hauled from the water will help to eliminate air
locks in raw water systems.
Note: It may be necessary to reprime the
raw water system if the system is not
used for an extended period and at the
time of launching.
6.2 Air Conditioning (Optional)
The air conditioner is self-contained and sea water
cooled. An AC centrifugal raw water pump sup-
plies sea water that cools the condensing unit as
it circulates through the system and is discharged
overboard. The pump is located in the stern bilge
below the step in the engine compartment. It is
activated whenever AC current is available and
the air conditioning system is operating.
Sea water is supplied to the pump from a thru
hull fitting located in the hull near the pump. A
sea strainer between the pump and thru hull fit
-
ting protects the system from contaminants that
could damage the pump or the air conditioning
system. Make sure the sea water pump receives
adequate sea water by periodically cleaning the
sea strainer basket.
Cleaning the Sea Strainer
• Turn the air conditioner off at the control panel.
Then turn the air conditioning breaker in the
AC panel off.
• Close the water intake valve.
• Open the top of the strainer and remove the
screen.
Air Conditioning Pump
Air Conditioner Sea Strainer
Chapter 6:
Summary of Contents for 340 SPORT YACHT
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Page 133: ...MONTEREY BOATS Appendix C...
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