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Incorporate this inspection into commissioning
procedure in spring and winterizing procedure in fall.
A removable magnesium Anode is integral with the
hot water discharge fitting. The Anode should be
checked at least once a year by removing it from the
water heater. If the Anode diameter is less than 3/8"
(9.5mm), it should be replaced. If discoloration,
unusual smell or taste develop in the water, inspect or
replace Anode. The Anode is replaceable as a unit
and may be ordered from Raritan dealers or from the
factory. Please specify 6, 12, or 20 gallon model.
Replacing the thermostat:
WARNING: Danger of shock. Be sure to turn
power off.
Use ONLY Raritan replacement thermostat
(#WH16 - ignition protected).
1. Remove access panel to thermostat and element.
2. Remove personnel protector.
3. Unscrew the neutral and hot wires from the
element with a Phillips screw driver.
4. Cut the incoming wires. Using fingers pull tabs
of thermostat mounting bracket forward and lift
thermostat out.
5. Install new thermostat.
6. Strip incoming wires, exposing 5/16"(8mm) of
wire.
7. Crimp neutral wire supply to white wire and hot
wire supply to black wire (series connector
provided with new thermostat).
8. Screw ring terminals of white and black wires on
lower side of thermostat to studs of the element.
9. Reinstall personal protector panel.
NOTE: Check for leaks before proceeding.
10. Replace access panel.
11. Turn on AC power.
Replacing The Heating Element:
WARNING: Danger of shock. Be sure to turn
power off.
1. Turn off water pressure pump and open all hot
water faucets. When water has stopped flowing,
pressure in water heater has been relieved.
2. Drain heater the rest of the way either through the
drain valve, if installed, or by removing the cold
water supply hose at the bottom of the tank.
3. Remove electrical access cover, personnel
protector and two wires connected to heating
element. Do not remove ground wire. Unscrew
and remove Heating Element using 1½" socket
wrench, discarding gasket. Never reuse an old
gasket.
4. Install new gasket and Heating Element.
5. Reconnect black and white wires to the new
Heating Element and install personnel protector
and electrical access cover.
Fig. #1 Typical Hookup, Raritan Water Pressure System and Water Heater
Hot
Cold
Drain for Temperature
and Pressure Valve
Drain Valve
or Drain
Plug
Galley Flow
System
Expansion
Tank
Dockside
Water Hose
Freshwater Tank
Fill Fitting
on Deck
Connector Fitting with
Built-in Regulator
Shutoff
Valve
Check
Valve
To Shore
Power
(AC Service)
Engine
Coolant
IN
Engine
Coolant
OUT
Cold Water Faucet
Hot Water Faucet
Water Heater
2
VacuumBreak
(Backflow Preventor)