Monaco Cayman 2005 Owner's Manual page 244

Damage to the regulator can occur when the tank is overfilled. The regulator is designed to work
with vapor only. This is why the tank is filled 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 overfilled tank, liquefied petroleum can fill the regulator. As the 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 refriger-
ator operation on LP-Gas.
Manometers:
The manometer is the best way to accurately deter-
mine LP-Gas pressure. There are two different styles of
manometers: Gauge and U-tube. Gas pressure is meas-
ured in Inches of Water Column. This is the amount of
pressure applied to one side of a U-shaped tube half filled
with water. The amount of pressure needed to raise the
column of water 11" represents 11 Inches of Water
Column.
WARNING:
Do not attempt to adjust
the regulator.
Adjustments require spe-
cial 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!
244
Section 7 --- LP-Gas Systems
050260
Manometer Gauge
U-Tube Testing Layout
Cayman 2005
050259e