Propane Gas Regulator - Thor Motor Coach 2009 Mandalay Owner's Manual

PROPANE GAS SYSTEMS

PROPANE GAS REGULATOR

Never alter the positioning of the regulator. Propane Gas regulators must always be
installed with the diaphragm vent facing downward. Also make sure to keep the
regulator cover in place to minimize vent blockage which could result in excessive gas
pressure causing fire or explosion. Do not rely upon being able to smell Propane Gas
leaks, as the odor may not be sufficiently strong to detect.
Two regulators are used in the same body to reduce the pressure of the Propane Gas in the
tank for use by the appliances in the motorhome. The regulator seldom requires service, but it
should always be protected from the elements and extremes of hot and cold.
The high pressure regulator (first stage) is used to reduce the pressure to approximately 10.00
to 13.00 PSI before sending it along to the low pressure regulator (second stage). This second
stage regulator reduces the pressure further to 6.35 PSI. The two stages regulator does not
have to work as hard since the second stage receives consistent pressure rather than inlet
pressure which varies. The result is an efficient safer system that helps to eliminate problems
such as freeze up and pilot outage.
The regulator has been preset by the manufacturer of the regulator. Adjustment should not be
necessary. If adjustment should be required; however, DO NOT attempt to adjust it yourself.
Adjustment must be made with special equipment by a qualified Propane Gas service
technician. Have the regulator checked annually or whenever you suspect a problem.
The correct line pressure should be 6 ¼ oz. or 11 inches of water column.
Because air is required for proper operation of the regulator, it is very important that the
regulator vent is kept clean and free of dirt and debris. This is why it is necessary to keep the
vent facing downward and the regulator covered to protect if from contamination. A toothbrush
can be used to clean the vent if it becomes clogged by foreign matter.
MANDALAY
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