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 fl ow 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 fi ve seconds:
WARNING:
Do not hold the safety valve in more than
30 seconds. If there is no fl ame in this time, wait at
least fi ve 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 fi re or explosion and
result in dangerous personal injury or death.
- When a fl ame is present, and the fl ame meter [5] moves
into the green area, release the safety valve.
- If the fl ame meter does not move into the green area or
does not remain in the green area, wait about fi ve 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 10-13 amps at 14
- 15.4 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 fl ame appearance:
While in LP gas operation, examine the appearance of the gas
).
fl ame:
- Turn the thermostat to the 5 position.
- Open the lower intake vent.
CAUTION:
gloves to avoid burns.
- Open the burner box door [3] and look at the gas fl ame [1]
(See Art00955 and Art00982).
- The fl ame should be a darker blue inside and a lighter
blue outside and should be a constant and steady
shape.
- The fl ame should not be yellow and should not have
an erratic and unstable shape.
- Make sure the fl ame does not touch the inside of the
fl ue tube [2].
- Close the burner box door.
Remove and clean the burner orifi ce:
).
To remove and clean the burner orifi ce:
- Close the valve at the propane gas tank(s).
- Close the manual shut off valve of the refrigerator.
- Turn the gas control to the OFF position (
- Open the lower intake vent.
).
- 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 fl are nut from the orifi ce assembly [1] (See
Art00956).
- Remove the orifi ce assembly from the burner [2]
The burner box cover can be hot. Wear
To avoid possible propane gas leaks,
).