Equipment Details
41
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 delay the starting of gas
mode e.g. when stopping at a filling station.
WARNING: 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), when
stopping at a filling station.
UNDERVOLTAGE OPERATION
The AES system is designed to guarantee
the maximum cooling efficiency under any
circumstance. The system continuously
monitors the voltage level while in either 12V
DC or 230V AC mode. If the voltage is too
low, the system switches to gas mode shown
by the yellow LED (E). The system stays in
gas mode, until the electrical supply voltage
has recovered to normal level.
REGULATING THE TEMPERATURE
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 for all three sources of
energy, by means of the thermostat knob (B).
After turning on the refrigerator the system
automatically chooses the mid-position. With
some experience you will soon find a suitable
setting. This does not normally need
resetting as the same thermostat controls the
main compartment temperature for all three
sources of energy.
TURNING OFF THE REFRIGERATOR
If the refrigerator is not to be used for some
time:
1. Set the switch (A), to "OFF".
2. Shut off any on-board valve in the gas
line to the refrigerator.
3. Empty the refrigerator. Defrost and clean
it as described earlier. Leave the doors of
the refrigerator and frozen food
compartment ajar.
4. When the vehicle is laid up for a long
period of time (e.g. during the winter
months), we suggest fitting the winter
covers on to the grills.
IF THE REFRIGERATOR FAILS TO WORK
Check the following points before calling a
service technician:
1. That the green AES LED goes on when
the switch (A) is set to "ON" (12V must
be available).
2. When mains are connected but the
refrigerator stays in gas operation check
the refrigerator is correctly connected
and the fuse (230V) is intact.
3. Is the 12V fuse intact?
4.
Disconnect the wall plug, and the 12V
wires before servicing. Check the fuses
on the circuit board, (under the black
cover at the top of the refrigerator and
behind the control panel).
Remove the two screws holding the
control panel, pull out the control panel
with its electronics. Remove the cover
and check the fuses.
5. In transit, if the refrigerator does not
operate in DC mode check the alternator
(D+) is correctly connected.
6. If the AES LED (C) flashes red, see
chapter
Gas trouble-shooting.
If the refrigerator is not cold enough it
may be because:
1. The ventilation is inadequate owing to
reduced area of the ventilation passages
(partial blockage of grilles from wire
mesh etc.).
2. The evaporator is frosted up.
3. The temperature control setting is
incorrect.
4. The gas pressure is incorrect - check the
pressure regulator at the gas container.
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