138
Propane System
Propane Gas Cylinders
Propane gas, while under pressure in the cylinder, is compressed
into it's liquid form. As the fuel is released from the cylinder, it
changes from liquid to gas, and is used to operate the applianc-
es. Propane will not run through the appliances in the liquid state.
Propane expands 1½ percent for every ten degrees of increase
in temperature.
•
IMPORTANT: Sufficient space MUST be left inside
the container to allow for natural expansion of gas
during warmer weather.
Propane cylinders (also referred to as LP bottles) are used for the
storage and delivery of propane gas. Propane cylinders are filled
by weight, expressed in pounds. For filling, a qualified propane
facility is required, and cylinders must be removed from the RV.
When the propane system is not in use, the
main shut off valve
MUST be kept closed. To close the propane cylinder main shut
off valve:
HAND TIGHTEN ONLY, do not use tools
.
• Over-tightening may damage the interior seals on the cyl-
inder valve seat. If this type of damage occurs, the cylinder
will not close properly.
DOT (Department Of Transportation) cylinders are the most
common for use on RV trailers. DOT cylinders equipped with an
OPD and ACME type 1 service valve are identified by the triangu-
lar service valve knob.
• ALWAYS close the service valve and install a dust cap or
plug when transporting or storing disconnected containers
whether full or empty.
DOT cylinders are typically marked with “top” or an arrow
indicating the correct orientation of the cylinder(s.)
• ALWAYS mount, store and transport the cylinder(s)
in the position specified.
• ALWAYS securely re-install DOT cylinder(s) to the RV
after they have been removed for filling or replacement.
The cylinders are equipped with an
Over-fill Protection Device
(OPD) designed to reduce the potential of overfilling. They are
also equipped with an ACME service valve that is for connection
of the TYPE 1 ACME pigtail hose assembly to the RV two-stage
regulator. The TYPE 1 ACME pigtail hose assembly is a wrench-
less, user friendly, right hand threaded connector that features a
thermally sensitive sleeve and excess flow device.
Propane cylinders should
not be placed or stored
inside RV. LP gas cylinders
are equipped with safety
devices that relieve
pressure by discharging
gas into the atmosphere.
WARNING
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