56
Dometic
®
MANUAL
Refrigerators
2E. START-UP INSTRUCTIONS
Before starting the refrigerator, check that all the manual
gas valves are in the ON position. DO NOT forget the
manual shutoff valve on the rear of the refrigerator.
This refrigerator is equipped with a control system,
which can automatically select the most suitable energy
source which is available, either 120 Volt AC or LP gas
operation. The refrigerator can be operated in either the
AUTO mode (thermostat factory preset below the safe
food storage temperature) or MANUAL mode (continu-
ous operation - no thermostat control).
NOTE: Under certain cool weather conditions, the food in
the lower portion of the fresh food compartment may freeze
if operated for an extended period of time on the MANUAL
mode.
A. A 12 volt DC supply must be available for the elec-
tronic control to function. The refrigerator will work
down to 9.6 volt DC.
B. Press the main power ON/OFF button (1) to the
DOWN position.
B. In AUTO mode operation, the temperature is con-
trolled by a single temperature setting, on the energy
source selected by the control system. (See Auto
Mode)
C. In MANUAL mode operation, the refrigerator will run
continuously on the energy source selected by the
control system. (See Manual Mode)
NOTE: The food in the lower compartment may be
frozen if the refrigerator is left on MANUAL mode.
3E. TO SHUT OFF THE REFRIGERATOR
The refrigerator may be shut off while in any mode of
operation by pressing the main power ON/OFF button to
the UP (OFF) position. This shuts off all DC power to the
refrigerator, including the interior light.
4E. OPERATING MODES
AUTO MODE
Press the AUTO/MANUAL mode selector button (2) to the
DOWN position. The AUTO mode indicator lamp (A) will
illuminate.
When operating in the AUTO mode, the AUTO mode
indicator lamp (A) will illuminate. The control system will
automatically select between AC and GAS operation with
AC having priority over GAS. If the control system is
operating on AC energy and it then becomes unavailable,
the system will automatically switch to GAS. As soon as AC
becomes available again the control will switch back to AC
operation.
If 120 volts AC is not available, the control system will
automatically switch to GAS operation. Within 45 seconds
the burner should be ignited and operating normally. If
unsuccessful, the CHECK indicator lamp (B) will illuminate.
To restart an ignition attempt with the CHECK lamp illumi-
nated or to clear (turn off) the CHECK lamp, press the main
power ON/OFF button to the OFF and then to the ON
position. The control system will attempt a new 45 second
ignition sequence.
On the initial refrigerator start-up on gas (120 volts AC is not
available), it may take longer than 45 seconds to allow air
to be purged from the gas line. If the refrigerator has not
been used for a long time or the LP tanks have just been
refilled, air may be trapped in the supply lines. To purge the
air from the lines may require resetting the main power ON/
OFF button (1) three of four times. If repeated attempts fail
to start the LP gas operation, check to make sure that the
LP gas supply tanks are not empty and all manual shutoff
valves in the lines are open.
NOTE: DO NOT continue to reset GAS operation if the
CHECK indicator lamp continues to be illuminated after 3
or 4 tries.
If 120 volts AC becomes available while the CHECK
indicator lamp is on, the control system will switch to 120
volt AC operation. The CHECK lamp will not turn off until the
main power ON/OFF button is pressed to the OFF then ON
position.
In AUTO mode operation, the temperature is controlled by
a single temperature setting.
MANUAL MODE
When operating in the MANUAL mode, the AUTO mode
indicator lamp (A) will be off, and the refrigerator will run
continuously on the energy source selected by the control
system.
NOTE: The food in the lower compartment may be frozen
if the refrigerator is left on "MANUAL" mode.
STANDBY MODE
This control system contains a feature that will continue to
operate the cooling system in the event of a failure of a
major operating component. If the control cannot read the
temperature sensor and operate at the preset temperature,
then the control will run the cooling unit like the MANUAL
mode.
The refrigerator will continue to operate in this mode
indefinitely or until a new sensor is installed and the system
is reset.
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