Automatic Mode Operation; Removing Air From The Propane Gas Supply Lines - Norcold N621 Owner's Manual

- Push and hold the TEMP SET button and the temperature
setting changes.
- Release the TEMP SET button when the temperature
setting that you wish appears.
- After ten seconds, the temperature setting will go out and
only a green power ON light remains.
The MODE button [2] controls the operation mode of the
refrigerator:
- Push and hold the MODE button and each of the operating
modes of the refrigerator show one at a time in the center
display.
- There is one automatic mode of operation and two
manual modes of operation.
NOTE: On 3-way models, there are three manual
modes of operation.
- When the mode of operation that you wish shows in the
center display, release the MODE button.
NOTE: If you should forget in what mode your refrig-
erator is operating, push and release the
MODE button to show the current mode of
operation in the center display for 10 seconds.

Automatic mode operation:

When the refrigerator is in AUTO mode, it automatically uses the
most efficient energy source that is available for operation.
During operation, if a more efficient energy source becomes
available, the refrigerator controls change from the current
energy source to the more efficient energy source as follows:
- The first choice is AC operation if 120 volts AC is available to
the refrigerator.
- The second choice is propane gas operation if 120 volts AC
is not available to the refrigerator.
- The third choice is DC operation (on 3-way models only) if
neither 120 volts AC nor propane gas is available to the
refrigerator.

Removing air from the propane gas supply lines:

For safety reasons, the burner is made to ignite on propane gas
within a specified amount of time. When starting the refrigerator
for the first time, after storage, or after replacing propane gas
tank, the propane gas supply lines can have air in them. Due to
the air in the gas supply lines, the burner may not ignite on
propane gas within the specified amount of time.
To remove the air from the propane gas supply lines:
- Make sure that valve of the propane gas tanks(s) is open.
- Push the ON / OFF button to turn the refrigerator on.
- Push and hold the MODE button until the letters "LP" show
in the center display.
- This means that the refrigerator is operating on
propane gas.
- If the air in the propane gas supply lines prevents the
burner from ignition on propane gas, the fault codes
"no" and then "FL" will appear in the center display and
you will hear an alarm sound.
- Push and hold the ON / OFF button for one second and
then release to silence the alarm.
- Push the ON / OFF button to turn the refrigerator on.
- The refrigerator will start a 30 second trial for
ignition.
- During the 30 second trial for ignition, the refrigera-
tor controls open the gas safety valve and the
igniter makes sparks.
- When no fault code shows and only the power indicator
remains, this means that the refrigerator is operating on
propane gas in the manual mode.
- At this time, all of the air is removed from the propane
gas supply lines and you may select AUTO mode of
operation if you wish.
- Depending on how much air may be in the propane gas
supply lines, you may need to repeat the 30 second trial for
ignition two or three times.
- If the burner does not ignite on propane gas after two or
three attempts, stop and consult your local dealer or an
authorized Norcold Service Center.
Set the controls to automatic mode operation:
- Push the ON / OFF button to turn the refrigerator on.
- Push and hold the MODE button until the letters "AU" show
in the center display and then release.
- If 120 volts AC is available to the refrigerator:
- The letters "AU" and then "AC" show in the center
display.
- After ten seconds, the "AU" and then "AC" go off and
only a green power ON light remains.
- This means that the refrigerator is operating on AC
electric.
Owner's Manual 9