Marquis 500 Sport Bridge Owner's Manual page 65

PRESSURIZING AND PRImING ThE WATER SYSTEm
pRESSURizE AnD pRimE thE WAtER SyStEm OnLy AFtER thE FRESh WAtER tAnk iS FULL.
NOTE:
Dc cOntROL pAnEL (hELm)
Shut Off Valves
Drain
Pressure Relief Valve
By Pass Valve
11 gALLOn WAtER hEAtER tAnk
USING ThE WATER SYSTEm
The freshwater system is designed to operate the same as an in-home water system . Open a faucet to receive fresh water after
filling, pressurizing, and priming the fresh water system . The pressure in the system decreases as water draws from the system . The
pressure water pump automatically turns on and increases the pressure when pressure decreases . The automated system ensures a
steady flow of water any time a faucet is opened .
Occasionally, re-priming may be necessary for a recently filled system or a system that has not been used for a while . Re-priming is
normal, and is caused by an accumulation of air bubbles at the pressure water pump . To re-prime the fresh water system, repeat the
steps under: Pressurizing and Priming the Water System.
A Tip From Marquis
to obtain the most consistent shower temperature: turn on the cold water faucet fully, then slowly turn on the hot water
faucet until the water flowing from the shower head is at the desired temperature. this method keeps the pressure
water pump running and eliminates widely fluctuating temperatures.
WATER HEATERS
operatIng the water heaterS:
1 . Fill, pressurize, and prime the fresh water system . The process automatically fills the water heater .
2 . Supply AC power to the yacht . Refer to Section 3: Shore Power or Generator
5027 • E5 09/2011
PRESSURIZING AND PRIMING THE WATER SYSTEM:
1 . Verify that the DC Control Panel (Helm) has power
2 . Switch ON the AUTO SUMP CIRCUIT breaker, located on the DC Control (En-
gine room) .
3 . Open the hot and cold shut-off valves on hot water tank and close the bypass
valve . (See Illustration Below)
4 . Partially open all cold water faucets, including: transom hand shower faucets and
bow and transom fresh water washdown faucets (faucet locations: refer to photos
on previous page)
5 . Supply AC power to the yacht . Refer to Section 3:
Power for instruction .
6 . Switch the PRESSURE WATER PUMP circuit breaker ON, located on the DC
Control Panel (Helm) . Turning the Pressure Water Pump breaker ON, activates
the pressure water pump and pressurizes the water system . The fresh water
system is primed when all of the air is purged from the system's pipes and hoses .
7 . Monitor each sink tap and shower head starting from the boat's aft .
8 . Close the cold water faucet for the tap or shower head when a steady stream of
water flows from the tap or shower head
9 . Open the hot water faucet (the washdowns supply only cold water) .
10 . Again, close the hot water faucet for the tap or shower head when a steady
stream of water flows from the tap or shower head .
11 . The water system is primed when all systems are complete .
12 . Add water to the fresh water tank to replace the water used in previous steps .
13 . The pressure water pump automatically shuts off when water pressure within the
system increases to a predetermined point .
I I S S
nternal nternal
Shore Power or Generator
Power for instruction .
yStemS yStemS
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