46
Dometic
®
MANUAL
Refrigerators
NOTE: Do not continue to reset GAS operation if the
CHECK indicator lamp continues to be illuminated after
several tries. 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.
Press the TEMPERATURE SELECTOR button (5) until
the lamp (H) at the desired position is illuminated.
If the control is switched to the AES/AUTO or AC/GAS
mode of operation while the CHECK indicator lamp is
on, AC or DC will function properly, but the CHECK
indicator lamp will not go off until the main power ON/
OFF button is pressed to the OFF then ON position.
TEMPERATURE SELECTOR
The temperature selector on the refrigerator controls
both the gas and electric operation, thereby eliminating
the necessity of resetting each time a different energy
source is employed.
After the initial start-up, the temperature selector should
be moved from "COLDEST" to the desired temperature
setting, usually about mid-setting.
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.
DESCRIPTION OF OPERATING
MODES
AES/AUTO MODE
The AES/AUTO mode of operation takes priority over
all other operating modes. If more than one mode
selector button (2), (3) or (4) is in the down position the
priority is from left to right.
When operating in the AES/AUTO mode, the AES/
AUTO mode indicator lamp (A) will illuminate. In this
mode the control system will automatically select the
energy source with AC having top priority, DC second
priority and GAS third priority. If the control system has
selected a particular energy source such as AC, and
then it becomes unavailable, it will automatically seek
out the next available energy source.
AC/GAS MODE
When operating in the AC/GAS mode, the AC/GAS
mode indicator lamp (B) will illuminate.
In this mode of operation the control system will auto-
matically select between the AC and GAS energy
sources with AC having first priority.
GAS MODE
When operating in the GAS mode, the GAS mode
indicator lamp (C) will illuminate.
The GAS mode provides LP gas operation only. The
control system will activate the ignition system and will
attempt to light the burner for a period of approximately
45 seconds. If unsuccessful, the CHECK indicator lamp
(G) will illuminate and the GAS mode indicator lamp (C)
will turn off.
To restart GAS operation, press the main power ON/
OFF button (1) to the OFF and then ON position. The
control system will attempt a new 45 second ignition
sequence.
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 or 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.
If the control is switched to AES/AUTO or AC/GAS
mode of operation while the CHECK indicator lamp is
on, it will function properly, but the CHECK indicator
lamp will not go off until the main power ON/OFF button
is pressed to the OFF then ON position.
BATTERY PROTECTION SYSTEM
The control system is equipped with a battery protection
system. If AC power is not available the control will
switch to the DC energy source. If the input voltage at
the terminal block connections is below 12.8 volts the
control system will bypass the DC energy source and
attempt GAS operation. If the GAS energy source is
available, CHECK lamp is on, the control system will
return to the DC energy source. The control will operate
in the DC mode for a maximum of 10 minutes.
If the input voltage has not returned above 12.8 volts
within this time, the control will terminate DC operation
and turn off the DC lamp (F) and start gas operation if
GAS energy source is available.
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