Operating Instructions; Controls; Starting The Refrigerator; Switching Between Energy Sources - Electrolux AES II CARAVAN Manual

OPERATING INSTRUCTIONS

CONTROLS

This refrigerator is equipped with an Automatic Energy
Selector (AES) which controls its operation and energy
supply.
The system selects the available energy source in the order
230/240 V – 12 V – LP gas. No manual operation is neces-
sary for selecting the energy source.
The control panel is shown in fig. 3.
The refrigerator is set into operation by pushing button (A)
(main switch). The AES LED (C) lights green showing: AES
system working. Push- button (B) is used for setting the
electronic thermostat. The thermostat LEDs (D) show the
choosen temperature position. When there is a demand for
refrigeration, AES will connect the most favourable of the
available energy sources.
Note: 12 V must always be available to supply the electro-
nics.

STARTING THE REFRIGERATOR

All references are to fig. 3.
LP Gas operation
AES will select LP gas operation under the following
conditions:
No AC (230 V) available
Engine not running (no high current at 12 VDC available)
AC available but too low
Engine running but DC supply too low
(condition three and four are briefly described in item
Undervoltage operation)
When the system chooses LP Gas operation, the flame
failure device is automatically opened, allowing the gas to
flow to the burner. At the same time, the electronic igniter is
energized.
After initial installation, servicing, or changing gas cylinders
etc., the gas pipes may contain some air which should be
allowed to escape by briefly turning on the refrigerator or
other appliances. This will ensure that the flame lights
immediately.
If the flame goes out (by gust of wind etc), the igniter is
immediately activated and reignites the gas.
Note: the control electronics and the igniter must have a
DC (battery) supply to operate.
Gas trouble-shooting
If the AES LED (C) is flashing red, the system was not able
to start or continue gas operation. Set the switch (A) to 0
and check that there is enough gas in the gas bottle, that its
valve is open and that any valves in the gas line to the
refrigerator are open.
Then push button (A) to "ON" again. After 10 sec. AES will
repeat the ignition sequence. When the AES LED (C) again
starts flashing red after 30 sec, the trouble persists (air in
the line, no gas?). Switch (A) briefly off and then on again. It
might be necessary to repeat this operation 3-4 times if the
tubing contains air (after changing gas bottles, repairs etc).
If this does not help, you should consult a service tech-
nician.
230 V Operation
When a mains connection is available, AES will select this.
Please note, that even being in AC mode, 12 V DC is nec-
cessary for the internal supply of the electronics.
12 V operation
AES will select the 12 V mode of operation only when the
vehicle engine is running (detected by the alternator con-
nection of the fridge).
SWITCHING BETWEEN ENERGY
SOURCES
When switching from one energy source to another, there
are some delays implemented in the AES system.
The 15 min. delay between switching off the engine and
starting gas mode is intended to to delay the starting of gas
mode e.g. when stopping at a filling station.
Nevertheless it is not allowed to have a naked
flame at a gas filling station. If you are not sure, that
your stop is shorter than 15 min., you are advised to
switch off the main switch (A), fig. 3, when stopping
at a filling station.
Undervoltage operation
The AES system is designed to guarantee the maximum
cooling efficiency under any circumstances. Therefore, the
system monitores continously the voltage level while being
in either 12 V DC or 230 V AC mode. If the voltage is too
low, the system switches to Gas mode shown by the yellow
LED (E in fig.3). The system stays in Gas mode, until the
electrial supply voltage has recovered to the normal level.

WINTER OPERATION

Please check that the ventilation grilles or the flue outlet are
not blocked by snow, leaves etc.
ELECTROLUX ventilation grilles A 1620 (fig. 2), can be
fitted with winter covers, model WA 120, to protect the
cooling unit against cold air. The covers may be fitted when
the outside temperature is below approx. 10°C and should
be fitted when the temperature is below the freezing point.
We suggest that you fit the winter covers also in the case
that the vehicle is laid up during the winter months.

REGULATING THE TEMPERATURE

The position number refers to fig. 3.
It will take a few hours for the refrigerator to reach normal
operating temperature. So we suggest you start it well in
advance of a trip and if possible store it with precooled
foodstuffs.
The temperature of the refrigerator main compartment is set
8