Norcold 121X series, Руководство по обслуживанию

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When working on or near the LP gas system:

Do not smoke or light fires! Extinguish
all open flames!

Do not use matches, lighters or an
open flame to test for LP gas leaks. LP
gas is highly flammable and explosive.

Do not connect the refrigerator directly
to the LP gas container. Always use an
approved LP gas regulator to supply
propane gas to the refrigerator.

Do not modify any of the refrigerator
LP gas system components, piping, or
fittings

Do not cross thread fittings. Be careful
when connecting or disconnecting
components, piping or fittings.

Always use two wrenches to loosen
or tighten fittings to prevent damaging
components, piping, or fittings.
Damaged components, piping, or
fittings create the potential for gas
leaks.

Leak test all fittings that have been
taken apart or disturbed during
servicing, repairing or replacing
components.
WARNING
The LP gas system is for propane gas at a
nominal pressure of 11 inches water column
(" w.c.). Propane gas pressures between 10.5
and 11. 1.5" w.c. provide necessary amount
of gas for efficient combustion and heat
generation.
Gas pressure below 10.5" w.c.
Gas pressure below 10.5" w.c. results in a
weak flame with low heat input to the cooling
system boiler. Low heat input directly affect
cooling performance
Additionally, the weak flame may not be
sensed by the controls flame sensing circuit,
which will cause the controls to shut off the
gas valve, lockout gas operation and display
the no flame fault code (no FL).
Propane gas pressure above 11.5" w.c. tends
to lift the flame from the burneror blow out the
flame, which will cause the controls to shut
off the gas valve, lockout gas operation and
display the no flame fault code (no FL).
High LP gas pressure can cause incomplete
propane gas combustion, which may be
indicated by a “popping” sound at the burner.
Pressure Requirements
Gas pressure above 11.5" w.c.
Checking propane gas pressure
Use a “U” shaped manometer or comparable
tool to check propane gas pressure.
When checking propane gas pressure, at
least 50 percent of the RV btu load need to
be on. This ensures that the LP gas regulator
is capable of delivering and maintaining gas
pressure throughout the system, including the
refrigerator.