Thetford N300 - Manuel (Page 15)

Installation and Owner’s Manual 15
Connect the Propane Gas Components
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.
- Do not use an open flame to examine for leaks.
- Do not connect the refrigerator to the gas tank without a
pressure regulator between them.
- To avoid an propane gas leak, 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
CAN1-6.10 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
recommends 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 (grommet, 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 fiting [2] of the
refrigerator (See Art01254).
Examine the 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 manual shut off valve 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), close the manual shutoff valve of the
refrigerator before the test.
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