1.0 Model Description
2.0 AES II System Function
An AES II refrigerator independently selects between the possible energy sources of 230 V,
12 V, and gas. The control electronics automatically ensure that the refrigerator is supplied from
the energy source optimal at a given time. You can not operate the refrigerator with more
than one energy source simultaneously. You may also not manually select a certain energy
source. The electronic thermostat controls the refrigerator during "ON/OFF" operation, independ-
ently of the energy source.
The basic function for the AES II is: cooling under all conditions. The amount of voltage
applied each time is therefore monitored during electrical operation (230 V or 12 V). If the volta-
ge falls below the relevant limit values (200 V for mains power supply voltage and 11 V for battery
operation), gas operation is selected (see low voltage operation). For its operation, the AES II
refrigerator requires a 12 V continuous plus supply to operate the control electronics.
Operation on a 24-V power supply is not possible.
2.1 Priorities
The refrigerators selects the type of energy according to the following priorities:
1) 230V: if the voltage > 200 V
2) 12V: if the motor is running (D+ signal from the generator) and voltage > 11V
3) Gas: if 230V is not present or < 200V, or 12V voltage < 11 V
2.2. Switchover Times / Time Delays
The following diagram displays the switchover times between the individual energy sources:
3
Refrigerator Mobil
Tropicana
Super-Iso
with AES
(Automatic Energy
Selector)
with
Interior Light
with double
Door Look
230V
Gas 12V
immediately
immediately
immediately
15 min. (compare tank stop)
approx 20sec.
I.E.
approx 20sec.
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