Owner`s manual

147
2008 KNIGHT
LP GAS SYSTEMS — 7
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 lling.
Ensure the tank is not over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.
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Damage to the regulator can occur when the
tank is overlled. The regulator is designed
to work with vapor only. This is why the tank
is 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 overlled
tank, liqueed petroleum can ll the regulator.
Vaporizing liquid 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 is checked and a leak down test
is performed!
Manometers:
The manometer is the best way to accurately
determine LP-Gas pressure. There are two
different styles of manometers: Gauge and
U-tube. Gas pressure is measured in Inches of
Water Column. This is the amount of pressure
applied to one side of a U-shaped tube half lled
with water. The amount of pressure needed to
raise the column of water 11" represents 11
Inches of Water Column.
TIP
Attach the manometer gauge to the
accessory hookup line to avoid loosening
any interior LP-Gas line connections.
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050260
U-Tube Testing Layout
Manometer Gauge