Monaco 2002 Diplomat, Service Manual

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This section contains information and knowledge for the operation and
care of the various Liquefied Petroleum (LP-Gas) system equipment found in
the motorhome. The motorhome is equipped with several appliances and various
equipment are capable to operate on LP-Gas. Some items discussed may not be
applicable to all motorhomes. More detailed information with
CAUTION or
WARNING instructions for the various equipment, other than what is found in
this section, can be found in the manufacturer’s manual in the owner’s infor-
mation box.
All components for the motorhome LP-Gas systems are approved for use in
recreational vehicles by a nationally recognized testing laboratory. When properly
handled, LP-Gas is a clean-burning dependable fuel for heat producing
components. The LP-Gas tank mounted in the motorhome contains liquid
petroleum gas which is under high pressure. As the fuel is used, liquid gas
vaporizes and passes through the tank valve to a regulator that automatically
reduces pressure. Low-pressure gas is then distributed to components
through a pipe manifold system.
Component lighting problems are commonly caused by an improperly
adjusted gas regulator. Do not attempt to reset the regulator. Adjustments need
to be made by a dealer or an authorized service person.
In higher elevations or extreme cold weather (10° F/-21° C or lower) a
shortage of LP-Gas may be experienced. Usage can be modified by running
only one component at a time. For example, turn off the furnace while using
the range. If LP-Gas is going to be used in higher elevations or cold climates
for a long period of time, have an authorized service person adjust the LP-Gas
regulator for these conditions.
Have the LP-Gas system checked by an authorized dealer at least once a
year, and thereafter before every extended trip. Although the manufacturer and
the dealer test the system carefully for leakage, travel vibrations can loosen fittings.
Leaks can be easily found by applying a leak detector solution on all
connections. Leaks can usually be repaired by tightening the fittings. If not,
shut off the main gas valve at the tank. Immediately see a authorized dealer for
repairs. Hand tighten the tank valves only. Do not use a wrench or pliers as over
tightening may damage valve seats and cause leaks. If a leak is suspected
(which can be easily identified by the odor of rotten eggs or sulfur) never light
a match, have an open flame or use any spark producing equipment or appliance.
WARNING: LP-Gas is highly volatile and extremely explo-
sive. Do not use matches or a flame to test for leaks. Use only
approved LP-Gas leak testing solution for leak detection.
Unapproved solutions can damage copper tubing and brass
fittings. Never attempt to adjust LP-Gas regulators. Only
qualified personnel should perform any maintenance or
repair to the LP-Gas system.
LP-Gas Systems
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DIPLOMAT 7 • 1 8 9
LP-GAS SYSTEM
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