Norcold 323X - Manual (Page 14)

Installation and Owner’s Guide 14
This refrigerator operates on propane gas at a pressure of 11
inches Water Column Propane.
Connect the propane gas supply system:
WARNING: Be very careful when working on or near the
propane gas system.
- Do not smoke, or use an open flame near the propane
gas system.
Connect the Propane Gas Components
Connect the 120 volts AC supply:
WARNING: Connect the AC power cord only to a
grounded three-prong receptacle. Do not remove the
round ground prong from the power cord. Do not use a
two-prong adapter or an extension cord. Operation of the
refrigerator without a correct ground could cause danger-
ous electrical shock or death if you are touching the metal
parts of the refrigerator or the vehicle.
Put the AC power cord into a grounded three-prong receptacle:
- Make sure the receptacle is within easy reach of the lower
intake vent.
- Make sure the power cord does not touch the burner cover,
the flue pipe, or any hot component that could damage the
insulation of the power cord.
Connect the 12 volts DC supply (model 323 only):
1. Determine the min. wire size and the max. fuse size to use:
WARNING: If you use an incorrect wire size and/or fuse
size, electrical fires can result.
- Measure the distance from the vehicle battery to the
refrigerator:
- If the distance is 0 - 20 feet, use a minimum of 12 AWG
wire and a maximum 20 amp fuse.
- If the distance is more than 20 feet, use a minimum of
10 AWG wire and a maximum 30 amp fuse.
- If the wire size is larger than the min. size , use the correct
fuse per RVIA A119.2 standard or local codes.
- Connect the DC negative wire from the battery to the black
DC wire on the terminal block of the refrigerator.
- Connect the DC positive wire from the battery to the red DC
wire on the termnal block of the refrigerator.
- Install a 20 Amp in-line fuse on the DC positive wire and as
near the battery as possible, between the battery and the
terminal block of the refrigerator.
NOTE: This in-line fuse is necessary for added safety, even
though the refrigerator has a DC fuse in the control
assembly.
- Do not use an open flame to examine for leaks.
- Do not connect the refrigerator to the propane gas tank
without a pressure regulator between them.
- To avoid possible propane gas leaks, always use two
wrenches to tighten or loosen the gas supply line
connections.
- Leaking propane gas can ignite or explode and result in
dangerous personal injury or death.
Connect the gas supply line to the refrigerator:
- Make sure all tubing and fittings obey all local, state, and
national codes about size and type.
- Make sure that all flexible metal connectors obey the current
CAN 1-6.10 Standard.
- Make sure that the materials used for the gas supply line
obey both the current ANSI A 119.2 (NFPA 1192) and CSA
Z240 Standards on Recreational Vehicles. Norcold recom-
mends the use of 3/8 inch copper tubing as the gas supply
line and requires a 3/8 inch SAE (UNF 5/8-18) male flare
fitting as the connection to the refrigerator.
- Put the propane gas supply line up through the floor of the
enclosure.
- Make sure the hole through the floor is large enough to allow
clearance for the gas supply line.
- Put a weather resistant seal (grommets, sealant, etc.)
around the gas supply line where it goes through the floor to
prevent vibration and abrasion.
- To prevent vibration and abrasion, make sure that the gas
supply line is not against anything in the enclosure.
- Attach the gas supply line to the bulkhead fitting of the
refrigerator.
Examine the propane gas supply system for leaks:
WARNING: Do not allow the leak detecting solution to
touch the electrical components. Many liquids are
electrically conductive and can cause a shock hazard,
electrical shorts and in some cases, fire.
Use a leak detecting solution to examine the gas supply line and
all propane gas connections for leaks.
If you use compressed air for the test:
- The pressure at the gas control of the refrigerator must not
be more than 1/2 psig (14 inches Water Column).
- If the air pressure is more than 1/2 psig (14 inches Water
Column), remove the gas supply line from the bulkhead
fitting of the refrigerator before the test.
- If the air pressure is equal to or less than 1/2 psig (14 inches
Water Column), turn the gas control to OFF before the test.