APPLIANCES — 4
104
2008 IMPERIAL
CAUTION:
Ensure the water heater is cool prior to
establishing the air pocket.
1. Turn off the water heater.
2. Turn off the incoming water supply.
3. Open the hot water faucet closest to the
water heater.
4. Open the handle of the P & T valve.
5. Allow excess water to drain from the
water heater through the P & T valve.
When draining is complete, close the P
& T valve by allowing it to snap shut.
Close the faucet and turn on the water
supply.
6. Turn on the water heater.
Burner Compartment:
Periodically inspect the burner compartment and
door screen for foreign material that can prevent
the
fl
ow of combustion and ventilating air.
CAUTION:
Do not block any opening.
Tips:
Turn off the water heater when not in use
to conserve energy.
Shut the water off when not rinsing.
Operate the water heater using LP-Gas
when hooked to 30 Amp shore power.
This will reduce the likelihood of
tripping the shore power breaker. When
the water heater element is in operation,
it will use approximately 12 Amps at 120
Volts AC. Appliances that operate from
120 Volts AC may need to be operated in
sequence to avoid tripping a breaker.
Draining & Storage:
Drain the water heater to prevent freeze
damage if the motorhome is to be stored during
the winter months.
1. Turn off electrical power to the water
heater.
2. Shut off the primary LP-Gas valve.
3. Open low point drains.
4. Open both Hot and Cold on all faucets.
5. Remove water heater drain plug.
6. Turn the bypass valve to the bypass
position.
NOTE:
Refill the water heater with water before
resuming operation.
Troubleshooting:
Check the burner tube for obstruction
if the water heater fails to light. Insects
may make nests in the burner tube. It is
recommended to clean the burner tube
with a brush and not compressed air.
Compressed air may not fully remove
the obstruction.
If the indicator light on the switch does
not light and the water heater does not
light, ensure interior house power is on
or check for a blown fuse in the house
distribution panel.
If the water heater fails to operate
after checking the fuses, the high-
temperature safety limit switch may
be tripped. Have a quali
fi
ed technician
inspect the water heater.
AQUA-HOT (Optional)
The Aqua-Hot appliance is a water heater and
furnace. A diesel
fi
red burner and/or two AC
elements (used separately or in tandem) heat a
50/50 solution of Propylene Glycol antifreeze
and water to approximately 200º F. The heated
antifreeze solution circulates through heat
exchangers located within the motorhome to
provide interior heat. Potable water is heated
by the Aqua-Hot for domestic use. The Aqua-
Hot can also preheat the engine, making it
easier to start on cold mornings. The Aqua-Hot
switches are located on a multiplex panel in the
galley area.
NOTE:
Aqua-Hot antifreeze is propylene glycol
based boiler antifreeze. DO NOT mix
antifreeze types.
NOTE:
The Aqua-Hot must be turned ON
before using any heat feature.
Diesel Burner:
The Aqua-Hot consumes
approximately ½ gallon of diesel
fuel per hour of continuous
burner operation (about one or
two gallons a day). The diesel
burner is rated at 12 Volt DC/65
watts. Circulating pumps are
rated at 12 Volt DC/12 watts
each.
AQUA-HOT
DIESEL
080375a
