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WIRING SYSTEM: FUNCTIONS AND FEATURES
The Station of the compressor is a piece of electronic equipment which pilots the motor of the
compressor and carried out all the controls and electrical protection of the system. Its main
features are the following:
a) Protection of the battery with automatic turning off of the compressor when the feeding
voltage reaches the minimum threshold (cut out)
The compressor will start up automatically again when the voltage goes back to normal values
(cut in).
TABLE FOR BATTERY SAVER INTERVENTION
VOLTAGES
FEEDING
CUT IN
CUT OUT
12 V
11.7 V
10.4 V
24 V
22.6 V
21.3 V
WIRING CONNECTIONS
When you connect the refrigerator, you must remember the following:
1) Use cables having the proper cross section (see the table) to make the feeding lines. If possible,
such cables should be without any joints on the leads which could lead to voltage falls.
2) If the wiring system of the vehicle is insufficient or not properly sized for the refrigerator, we
suggest you connect it directly to the battery.
Note
The use of cables having an insufficient cross section may lead to the compressor stopping
even when the battery is charged.
CROSS SECTION
CABLES mm
2
MAXIMUM LENGTH OF CABLES IN METRES
12 V
24 V
2.5
2.5
5
4
4
8
6
6
12
10
10
20
3) Any switches must have a breaking load not less than 20 A (10 A if powered at 24 Volt).
4) Make sure the polarity is right: connect the red cable to the positive terminal (+) and the black
cable to the negative terminal (-).
WARNING!
Never connect bare electric wires, and use only connectors of a size suitable to the cross sec-
tion of the cable being used.
5) For system protection, the fuse must be installed in the positive wires (+) as close as possible
to the battery. We recommend using 15 A fuses for 12 V and 7.5 A fuses for 24 V. If using a main
switch, it must be able to withstand a minimum current of 20 A. Avoid extra junctions in wiring
to prevent voltage drops that can influence battery protection settings.
Summary of Contents for CR86
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