LP-GAS SYSTEMS - 7
CAYMAN 2007
135
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 psi.). 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 the 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 into the tank.
050251a
NOTE:
This information is not a complete guide for the use
of LP-Gas tanks or appliances. In cold climates keep
LP-Gas level above 50% to keep vaporization of
LP-Gas at the highest level.
Содержание CAYMAN 2007
Страница 12: ...GENERAL INFORMATION 1 CAYMAN 2007 8 NOTES...
Страница 14: ......
Страница 16: ......
Страница 52: ...DRIVING SAFETY 2 CAYMAN 2007 48 NOTES...
Страница 80: ...EXTERIOR INTERIOR CARE 3 CAYMAN 2007 76 NOTES...
Страница 100: ...APPLIANCES 4 CAYMAN 2007 96 NOTES...
Страница 132: ...WATER SYSTEMS 6 CAYMAN 2007 128 NOTES...
Страница 160: ...ELECTRICAL SYSTEMS HOUSE 8 156 CAYMAN 2007 NOTES...
Страница 226: ...INDEX 222 CAYMAN 2007 NOTES...