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LIQUID PETROLEUM GAS SYSTEM
Liquefied petroleum (LP) gas is available from an
appr9ved storage tank to operate your range, oven,
furnace, and water heater, and as an alternate energy
source for some refrigerators. With proper handling
precautions, LP gas is safe and provides modern con-
veniences wherever you travel. The LP gas storage
tank is mounted on the motor home chassis. It is
stored as a liquid under pressure and vaporizes under
the control of a pressure regulator.
A typical LP gas tank installation is illustrated below.
Although specific details of the system may differ in
your motor home, the major components and their
relationships will be similar to those shown.
1.
LP gas tank
4.
Main shut-off valve
2.
Sight gauge
5.
Regulator assembly
3.
Auto-Stop valve
6.
LPG hose
LP GAS SAFETY PRECAUTIONS
Historically, LP gas is a safe and reliable fuel. As
with any other volatile and flammable material, com-
mon sense dictates that LP gas be handled and used
with respect and caution. Because LP gas systems
are so reliable, they are often taken for granted.
Neglect can be a very dangerous habit. If the system
is maintained regularly, you can expect almost
troublefree operation.
WARNING: LP GAS IS FLAMMABLE AND
POTENTIALLY EXPLOSIVE. USE PROPER HAN-
DLING,
LIGHTING,
AND
VENTILATION
PROCEDURES.
1. The distinctive odor of LP gas indicates a leak.
IF YOU SMELL GAS:
*
Extinguish all open flames, pilot lights and all
smoking materials.
*
Do not touch electrical switches.
*
Shut off the gas supply at the tank valve(s) or
gas supply connection.
33
*
Open all doors, windows, and vents.
*
Leave the area until the odor clears.
*
Have the gas system checked and the cause
of the leak corrected before using the system
again.
2. Inspect the entire LP gas system for leaks or
damaged parts before each trip.
3. Always be careful when drilling holes or fasten-
ing objects to the motor home. The gas supply
lines could be punctured by a nail or screw.
4. Do not restrict access to LP tanks. In an emergen-
cy, the tank service valve must be easily accessi-
ble. The tank compartment door must always be
unlocked.
c
5. Do not carry or store filled or empty LP gas con-
tainers inside your motor home. LP gas containers
are equipped with a safety device that relieves
excessive pressure by discharging gas to the at-
mosphere. Leaks can occur at valves and fittings.
Always store LP tanks with the valves closed.
6. Do not use any LP gas tank other than the one
furnished with your motor home without being
sure that all connecting components are
compatible.
7. WARNING: TURN OFF LP GAS MAIN VALVE AND
INDIVIDUALLY TURN OFF ALL GAS APPLIANCES
OR ELECTRICALLY DISCONNECT AUTOMATIC
IGNITION APPLIANCES BEFORE ENTERING AN
LP GAS BULK PLANT OR MOTOR FUEL SERVICE
STATION.
B. WARNING: DO NOT FILL LP GAS CONTAINERS
TO MORE THAN 80% CAPACITY. OVERFILLING
CAN RESULT IN UNCONTROLLED GAS FLOW
WHICH CAN CAUSE FIRE AND EXPLOSION. A
PROPERLY FILLED CONTAINER HOLDS ABOUT
80% OF ITS VOLUME AS LIQUID.
9. Never check for leaks with an open flame. Use
an approved leak detection solution or a non-
ammoniated, non-chlorinated soap solution on-
ly. If the leak cannot be located, take the unit
to an LP gas service representative.
10. LP gas regulators must always be installed with
the diaphragm vent facing downward. Make sure
that the regulator vent faces downward and that
the cover is kept in place to minimize vent
blockage which could result in excessive gas
pressure causing fire or explosion.
11. Do not use a wrench or pliers to close the ser-
vice valve. This valve is designed to be closed
leak-tight by hand. If a tool is required to stop
a leak, the valve probably needs repair or
replacement.
12. Use proper tools to tighten fittings. Don't force,
jam or crossthread fittings. Always check fittings
for leaks after tightening.
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