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Appliance & Equipment
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If Furnace Fails
to Light
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WATER HEATER
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Before Using the
Water Heater
3 • 7 5
If the furnace fails to light, make sure the LP-Gas supply valves are open
and the LP-Gas switch is turned on. Make sure the battery cut-off switch at the
entry door is ON. The furnace will not light if the blower motor is not spinning
to its specified speed. This may be due to a low house battery charge condition.
Hook-up to shore power and start the generator or main engine to charge the
batteries.
WARNING: If you smell gas and the blower motor is spinning, do
not attempt additional furnace operation. This may result in an
explosion, fire or personal injury. Contact a qualified technician.
The water heater in the motorhome will heat water using two different meth-
ods. The first method is 120 Volt AC, supplied either by shore power or the on
board generator. The second method is LP-Gas. The 120 Volt AC uses a heating
element like those found in a house style water heater. The 120 Volt AC method
is efficient if shore power is available. The LP-Gas incorporates the use of an
automatic ignition circuit board operated by 12 Volt DC. The water temperature
is controlled by two thermostats. One is for the 120 Volt and the other is for the
LP-Gas. The temperature is preset by the water heater manufacturer. Water is
pumped into the bottom of the water heater tank where it is heated and dis-
charged out of the top of the tank upon usage. For easy winterization, the water
heater is equipped with a temperature and pressure safety relief valve and a by-
pass valve. The water heater has an aluminum clad tank and an anode is not
necessary.
NOTE: The automatic ignition circuit board will make three
attempts to light the burner. If the burner does not light by the third
attempt, the ignition circuit board will go into "lock-out." Cycling the
on/off switch will reset the ignition board.
NOTE: Do not operate the water heater by either function without
water in the water heater tank, this can damage the thermostats and
the electric heating element.
Before using the water heater, purge all trapped air from the water system.
To purge the air and pressurize the system, fill the fresh water tank by using the
on board water pump or hooking up to city water. Check the tank for any
obvious water leaks. Once the system is pressurized, turn the hot and cold
valves on for each water faucet, one at a time, inside and outside of the
motorhome. Run each faucet until a steady stream of water with no air bubbles
or air pockets is present. The water heater does not need to be operating while
this is being done.
E X E C U T I V E
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