Water heater
To operate the water heater:
1. Fill, pressurize and prime the fresh water system. This automatically
fills the water heater.
2. Supply AC power to your boat. Refer to Section 3 - Shore Power or
Generator Power to do this.
3. On the AC Control Center - Salon:
a. Switch the Main Breaker circuit breaker ON.
b. Switch the Water Heater circuit breaker ON.
4. Refer to the OEM information for details on operating the water heater.
Do not supply power to the water heater when it is empty. Doing
so may damage the heating element. Fill, pressurize and prime
the fresh water system as described in - Filling the Water Tank
and Pressurizing and Priming the Water System before turning
on the water heater.
Pressure relief
Valve
By Pass Valve
Shut Off Valves
Drain
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, eliminating widely fluctuating water temperatures.
11 gallon tank shown
(20 gallon similar)
3837• U3 10/07
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