Service manual

Bulletin #R60/7A continued
9.
IO.
1 1.
12.
When switch "B" is pushed, the control system
will select only between 120 volts A/C and
LP gas operation.
To check, push question
mark button “J”.
Indicator light
“E” should
light up.
B
E
--
[AC/n 1
; cl
?
= AC
--
To check gas operation of switch “B”, remove
120 volt supply from rear of refrigerator.
Push switch
“J” (question mark). Flame
indicator should light.
When switch
“C” is pushed the refrigerator
will operate only on LP gas, even if 120 volt
A/C or 12 volt DC is available.
To check gas operation of switch “C”:
Push
question mark “J”.
Flame indicator light
“H”
should now light.
C
H
I
h
i5 El
?=n
--
Indicator “K ” flame failure.
This indicator
will light only when there has been a flame
failure in the LP gas operation mode. To
restart gas operation, set switch
“D” to OFF.
13.
Wait 5 seconds,
then switch back to ON.
Flame failure indicator will go off, and system
will start another cycle for ignition.
K
Indicator “G”.
This light will come on when
engine is turned off.
The AES system goes
into a delay cycle which prevents LP gas
operation for 25 minutes. This is a refueling
precaution.
If the engine is started during
the delay cycle, 12 volts will resume and the
delay period will be reset to 25 minutes.
This means every time the engine is turned
off, you will have a complete 25 minute delay.
G
NOTE: Each time tag line is energized and
12 volt cooling is selected, the
module board must receive approxi-
mately 13.6 volts for 40 or more
seconds.
At that time the unit will
engage the 12 volt heating element.
If initial 13.6 volts is not achieved
(due to demands of other 12 volt
devices in the vehicle), the AES will
not switch to 12 volt operation and
will operate instead on gas until the
13.6 volt threshold is achieved.
As with all AES refrigerators, minimum
voltage for any operation is 10.5
volts DC at the terminal block.
A-l
1-14