Connect The Propane Gas Components; Connect The Propane Gas Supply System; Examine The Gas Supply System For Leaks - Thetford N604.3 Installation And Owner's Manual

The terminals for connecting the DC power supply are marked positive (+) and negative (-). Make sure that:
- Each DC power supply wire is attached to the correct polarity terminal.
- The chassis or the vehicle frame is not used as one of the conductors.
- The DC power supply wires including the fuses are routed directly from the battery to the refrigerator.
2. Connect the D.C. power supply wires:
- Attach a fully insulated 6.35 mm Quick Connect terminal to each DC power supply wire.
- Push the positive (+) DC power wire onto the red DC wire.
- Push the negative (-) DC power wire onto the black DC heater wire.
- Make sure each DC power supply wire is on the correct polarity terminal.

Connect the Propane Gas Components

This refrigerator operates on propane gas at a pressure of 2.7kPa propane. The refrigerator gas usage is 1.5 MJ/h.

Connect the propane gas supply system:

!
WARNING:
- 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 propane gas tank without a pressure regulator between them.
- To avoid a 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.
- Use of 3/8 inch copper tubing as the gas supply line and 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 manual shutoff valve [218] of the refrigerator
(See Art02258).

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.
Be very careful when working on or near the propane gas system.
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Installation /Owner's Manual 27
Art02258