Ignition And Start Up; Ignition - Propane Gas Operation; Start Up - Ac Electric Operation; Start Up - Dc Electric Operation (3-Way Models) - Norcold N300 Service Manual

Ignition and Start Up

Before ignition or start up of the refrigerator:
- Make sure the air flow in the lower intake vent, through
the refrigerator coils and condenser, and out the upper
exhaust vent is not blocked or decreased.
- Make sure there are no combustible materials in or
around the refrigerator.

Ignition - propane gas operation:

1. Open the valve at the propane gas storage tank.
2. Open the manual shut off valve of the refrigerator.
3. Turn the thermostat [1] to the 5 position (See Art00976).
4. Turn the selector switch [2] to the gas position (
5. Push and hold in the safety valve [3] and in rapid succes-
sion push in the igniter several times for about five seconds:
WARNING:
Do not hold the safety valve in more than
30 seconds. If there is no flame in this time, wait at
least five minutes before you try ignition again. If you
continue to hold in the safety valve, gas will collect in
the burner area. This could cause a fire or explosion
and result in dangerous personal injury or death.
- When a flame is present, and the flame meter [5] moves
into the green area, release the safety valve.
- If the flame meter does not move into the green area or
does not remain in the green area, wait about five
minutes and do this step again.
6. Turn the thermostat to the temperature setting that you
wish.

Start up - AC electric operation:

- Make sure that 120 volts AC is available.
- Turn the selector switch to the AC position (
- Turn the thermostat to the temperature setting that you
wish.

Start up - DC electric operation (3-way models):

- Make sure that 12 volts DC is available.
- Turn the selector switch to the DC position (

Shut down:

- Turn the selector switch to the OFF position (
- Turn the thermostat to the 1 position.
6 - Service Manual N300 Models

Battery drain:

- In AC operation, there is no battery drain.
- In DC operation, the refrigerator draws 11 amps at 14 volts.
- If the battery charging stops during DC operation, change
the refrigerator to gas or AC operation until the battery
charging starts again.
- Check the voltage when in DC operation. The voltage
should never drop below 13.5 volts.

Refrigerator Maintenance

Gas flame appearance:

While in LP gas operation, examine the appearance of the
).
gas flame:
- Turn the thermostat to the 5 position.
- Open the lower intake vent.
CAUTION:
Wear gloves to avoid burns.
- Open the burner box door [3] and look at the gas flame
[1] (See Art00955 and Art00982).
- The flame should be a darker blue inside and a
lighter blue outside and should be a constant and
steady shape.
- The flame should not be yellow and should not have
an erratic and unstable shape.
- Make sure the flame does not touch the inside of the
flue tube [2].
- Close the burner box door.

Remove and clean the burner orifice:

).
To remove and clean the burner orifice:
- Close the valve at the propane gas tank(s).
- Open the lower intake vent.
- Close the manual shut off valve of the refrigerator.
- Turn the gas control to the OFF position ( O ).
).
- Remove the burner box cover by removing one screw.
WARNING:
).
always use two wrenches to loosen and tighten the gas
supply line at the refrigerator's manual shut off valve.
- Remove the flare nut from the orifice assembly [1] (See
Art00956).
- Remove the orifice assembly from the burner [2]
The burner box cover can be hot.
To avoid possible propane gas leaks,