540
HYDRAULIC SYSTEMS
Studio ti 03312 540-04usa
188
9
9.2 FRESH WATER SYSTEM
Water is taken from the tank and through a pump to relevant distribution
manifolds, and then sent to the various users:
− guests staterooms head;
− Master head;
− galley sink;
− engineroom faucet;
− cockpit washdown faucets;
− air conditioning unit;
− washing machine;
− water heater.
The system is kept under pressure by the pump, while the water heater
warms water.
The operation of your vessel’s fresh water pump is automatic and
normally does not need priming, except before its initial use or if the fresh
water tank is empty.
The pump holds an average static pressure of 30 PSI. When the pressure
drops below approximately 21 PSI, the pump automatically turns on and
raises the pressure. If the pressure continues to drop because of an
empty tank, the low-pressure cut-out switch will shut off the pump.
The fresh water pump is equipped with an active charcoal filter, improving
the quality of water; for more information, consult the relevant use and
maintenance manual.
A second fresh water pump (optional) has been installed on this yacht.
One of the two pumps is just a back-up, as the system always operates
with only one pump running. Some cut-off valves have been installed in
the engineroom for the operation and use of these pumps.
To prime the pump:
− ensure that the tank is at least partially full;
− start the pump by lifting the momentary pump restart switch located in
the salon DC distribution panel;
− hold the momentary pump restart switch until the pump continues to
run on its own, then release the switch;
− Once the pump has raised the pressure, open a faucet to release any
trapped air.
The water heater is located in the bilge underneath the Master stateroom.
The thermostat is pre-set by the manufacturer to 140-145 °F.
We recommend that you do not raise the temperature above this setting.
Avoid switching on the differential circuit breaker of the water heater
when this latter is empty. The water heater operates at 230 V AC either
by generator or by shore power supply.
The fresh water system is equipped, beyond normal fresh water inlet,
also with two extra dockside inlets. This system is equipped with a
pressure relief valve.
S
CAUTION
Periodically clean the filter and replace if necessary. Before cleaning
the filter, disable system operation.
S
CAUTION
Do not open the water heater thermostat access panel, unless the
differential circuit breaker is turned off.
NOTICES
The fresh water tank can be filled only through fill fitting. It cannot be
filled using the shoreside quick-connect fittings.
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