DYNASTY 2006
LP-GAS SYSTEMS — SECTION 7 • 247
LP-GAS REGULATOR
LP-Gas is compressed into liquid form in the tank. Only the vapor is used during combustion by an appliance.
As vapor is removed from the tank, the remaining liquid will vaporize to maintain pressure that is removed during
consumption. This process will continue until there is no liquid remaining in the tank.
Temperature affects the vaporizing action of the liquid. If temperature of the liquid is - 44º F, the liquid
remains stable with tank pressure, about 0 psi. If liquid temperature is 100º F, the liquid quickly vaporizes with
tank pressure, about 200 psi. Vapor pressure must remain relatively consistent, regardless of temperature, for the
appliance heat output to remain stable. Vapor pressure regulation is performed by the regulator.
The two-stage regulator reduces vapor pressure so that it is safe for use. The fi rst stage of the regulator
reduces tank pressure to a range of 10 to 13 psig (pounds per square inch gauge). The second stage further
reduces pressure to a working pressure of 0.4 psig (11 Inches of Water Column or about 6¼ ounces). A vent is
installed to allow the internal diaphragm to move with atmospheric pressure change. It is important to keep the
vent clean and clear of obstruction or corrosion. If the vent becomes clogged, pressure from LP tank may cause
erratic pressure regulation. If there is any corrosion, contact a qualifi ed LP-Gas service technician. The regulator
is mounted so that the vent faces downward. If the vent becomes clogged, clean it with a toothbrush.
Under normal atmospheric conditions an LP-Gas regulator
will not freeze, nor will the LP-Gas. Vapor passing through
the regulator will expand and cool, condensing moisture in the
gas. The moisture will freeze, build up and block the vent. The
possibility of freeze up is greatly reduced with the two-stage
regulator.
To Prevent Freeze Up:
• Ensure the LP-Gas tank is totally free of moisture prior to
fi lling.
• Ensure the tank is not overfi lled.
• Keep the valve closed when the tank is empty.
If A Freeze Up Occurs:
• Have an LP-Gas distributor purge the tank.
• Have the LP-Gas distributor inject methyl alcohol in the
tank.
Damage to the regulator can occur when the tank is overfi lled. The regulator is designed to work with vapor
only. This is why the tank is fi lled to only 80% of its liquid capacity. The other 20% allows for vaporization of
the liquid. The primary vapor valve is located in the vapor section of the tank. In an overfi lled tank, liquefi ed
petroleum can fi ll the regulator. As liquid vaporizes, it can freeze the diaphragm. High tank pressure on a frozen
diaphragm can cause a rupture and result in erratic pressure regulation. This is why it is important to have the
LP-Gas pressure checked for proper pressure and accurate regulation during appliance operation. Erratic pressure
regulation dramatically affects refrigerator operation on LP-Gas.
WARNING:
Do not attempt to adjust the regulator. Adjustments require special equipment. Failure to
follow these instructions may result in a fire or explosion, and can cause severe personal
injury or death. Do not operate LP-Gas appliances until the LP-Gas pressure has been
thoroughly tested!
050251a
Summary of Contents for DYNASTY 2006
Page 12: ......
Page 18: ...18 SECTION 1 GENERAL INFORMATION DYNASTY 2006 NOTES...
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Page 22: ......
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Page 61: ...DYNASTY 2006 DRIVING SAFETY SECTION 2 61 Weight Label 100179d...
Page 67: ...DYNASTY 2006 DRIVING SAFETY SECTION 2 67 Actual Worksheet 020255c...
Page 68: ...68 SECTION 2 DRIVING SAFETY DYNASTY 2006 Weight Record Sheet 020262...
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Page 118: ...118 SECTION 3 EXTERIOR INTERIOR CARE DYNASTY 2006 NOTES...
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Page 160: ...160 SECTION 4 APPLIANCES DYNASTY 2006 NOTES...
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Page 238: ......
Page 252: ...252 SECTION 7 LP GAS SYSTEMS DYNASTY 2006 NOTES...
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Page 280: ...280 SECTION 8 ELECTRICAL SYSTEMS HOUSE DYNASTY 2006 NOTES...
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Page 372: ...372 SECTION 10 CHASSIS INFORMATION DYNASTY 2006 METRIC U S CONVERSION CHART...
Page 374: ...374 SECTION 10 CHASSIS INFORMATION DYNASTY 2006...
Page 375: ...DYNASTY 2006 CHASSIS INFORMATION SECTION 10 375...
Page 377: ...Dynasty 2006 INDEX...
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