61
360 C
OASTAL
Chapter 6:
RAW WATER SYSTEM
6.1
General
In the raw or seawater systems, all water pumps are supplied
by hoses connected to ball valves and thru-hull fittings lo-
cated in the in the engine room bilge. Always make sure the
ball valves are open before attempting to operate any compo-
nent of the raw water system. 12-volt pumps supply seawa-
ter to most of the various accessories.
The air conditioners and freezers use a 120-volt AC seawater
supply pumps. These are the only 120-volt AC pumps in the
system and they are automatically activated when the air con-
ditioning or freezer systems are in use.
Priming the System
Make sure the ball valves are open. The raw water wash-
down and optional freezer and cockpit air conditioner pumps
are supplied seawater from the same thru-hull fitting and sea
strainer located just forward of the port engine. The thru-
hull fitting and sea strainer for the cabin air conditioning pump
is located forward of the water tank. The thru-hull fitting and
strainer for the baitwell is located aft of the starboard engine.
To prime the system, open the valve on the washdown hose
connector and activate the Raw Water Washdown pump. Run
the pump until all of the air is purged from the system and
then turn the switch off and close the valve. Activate the
baitwell pump. Run the pump until all of the air is purged
from the system and turn the pump off.
When the generator is operating or shore power is connected
and activated, turn on the cabin air conditioner and the op-
tional cockpit air conditioner and/or freezer and monitor the
discharge fittings for the air conditioning/freezer seawater sys-
tems. Water should begin to flow from the discharge fittings
within 30 seconds. If water does not flow, the system may
have an air lock or debris in the strainer causing the unit to
automatically shut down. Investigate and correct the prob-
lem, then restart the air conditioner or freezer.
The intakes for the cockpit air conditioner/freezer and cabin
air conditioner pumps are 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 Wellcraft 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. The valves should also be closed whenever you leave
the boat unattended.
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 from a trailer
or lift.
6.2
High Pressure Washdown
A 12-volt high pressure pump, controlled by a pressure sen-
sor, supplies the raw water hose outlet located below the gun-
nel in the aft cockpit. The pump is activated by the Raw
Water Washdown switch in the shore power inlet panel next
to the transom door. The switch should be turned to the “ON”
position just before using the washdown and be turned to the
“OFF” position when the washdown is not in use.
When activated, the pressure switch will automatically con-
trol the pump. As the pressure builds in the supply hose, the
pump will shut off. When the washdown hose is in use and
the pressure drops, the pump will turn on.
The generator and raw water washdown share the generator
strainer forward of the port engine. The air/freezer, optional
bridge deck air conditioner and cabin air conditioner share a
pump and strainer forward of the water tank.
High Pressure Washdown Hose Connection
Summary of Contents for 360 Coastal
Page 1: ...360 Coastal Wellcraft Marine Corp 1651 Whitfield Ave Sarasota FL 34243 OWNER S MANUAL...
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Page 125: ...125 360 COASTAL Appendix A SCHEMATICS 120 Volt AC Breakers...
Page 126: ...126 360 COASTAL 12 Volt DC Breakers...
Page 127: ...127 360 COASTAL Helm Switch Panel...
Page 128: ...128 360 COASTAL Helm Switch Panel...
Page 129: ...129 360 COASTAL Helm DC Breaker Panel...
Page 130: ...130 360 COASTAL Aft Deck Panel...
Page 140: ...140 360 COASTAL Overhead Layout...
Page 141: ...141 360 COASTAL Side Profile...
Page 142: ...142 360 COASTAL Trailer Support...
Page 144: ...144 360 COASTAL MAINTENANCE LOG Hours Date Dealer Service Repairs...
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