Safety Review; General Safety; Electrical Safety; Cooling System Safety - Norcold 121X Series Service Manual

Safety Review

General Safety

 Prevent child entrapment! Before disposing
of the refrigerator, remove all doors and
fasten all shelves with retainers.
 External components may have sharp
corners and edges. Wear hand protection,
such as cut resistant gloves, and exercise
extreme care when handling the refrigerator.
 Make sure all hardware, such as hinges and
fasteners (retaining screws, etc.), is properly
fastened.

Electrical Safety

 Do not work on live electrical circuits! Turn
off AC power and DC power sources before
attempting to remove, service, or repair any
of the refrigerator's electrical or electronic
components.
 Do not over-fuse electrical circuits! Use the
specified fuse and AWG wire size.
 Do not wet or spray liquids on or near
electrical connections and electronic
components! Most liquids, including
leak detection solutions, are electrically
conductive and create the potential for
shock hazards, shorts, damage to electronic
circuits, and/or ignite a fire.
 Do not use extension cords to supply AC
power to the refrigerator!
 Do not remove the grounding prong from the
refrigerator AC power cord!
 Do not use a two prong adapter to connect
the refrigerator to the AC outlet!
 Do not modify, bypass, or eliminate any of
the refrigerator's electrical components,
electronic circuits, or propane gas system
components, including AC and DC heaters.
 To prevent shock hazard, disconnect the AC
power cord from the electrical outlet before
attempting to remove the power board cover.
Electrical connections and repairs to

electrical components must comply with
applicable codes.
6
S 1
ection
 Use an anti-static grounding strap before
attempting to handle, remove or install the
power board.

Cooling System Safety

 Do not try to repair or recharge the cooling
system! The cooling system is a sealed and
pressurized. It is not rechargeable.
 Do not bend, drop, weld, drill, puncture, saw,
or strike the cooling system! The cooling
system is sealed and pressurized.
 Wear breathing protection and gloves when
handling a leaking cooling system. The
cooling system contains ammonia, hydrogen,
and sodium chromate.
n Ammonia can cause severe skin and eye
burns.
n Hydrogen is highly flammable and ignites
and burns with intense flame.
n Certain chromium compounds, such as
sodium chromate, are carcinogenic.
LP Gas Safety
 Do not smoke, light fires, or create sparks
when working on the propane gas system!
 Do not use an open flame for leak testing
any of the propane gas system components.
Propane gas is highly flammable and
explosive!
 Always use two wrenches to loosen or
tighten LP gas system fittings to prevent
damaging components, piping, or fittings.
Damaged components, piping, or fittings
create the potential for gas leaks.
 Do not use leak test solutions containing
ammonia or chlorine. Ammonia and chlorine
corrode and break down brass and copper
components.