Installing and connecting the refrigerator CRE
22
7.7 Connecting the refrigerator to DC voltage
A
The refrigerator can be operated with DC voltage supply (12/24 Vg).
For safety reasons, the refrigerator is equipped with an electronic system to prevent
the polarity being reversed. This protects the refrigerator against reversed polarity
when connecting to a battery and against short circuiting.
To protect the battery, the refrigerator switches off automatically if the voltage is
insufficient (see table below).
➤ Determine the required cross section of the cable in relation to the cable length
according to fig. d, page 9.
Key to fig. d, page 9:
A
➤ Before starting up the device for the first time, check whether the operating
voltage and the battery voltage match (see type plate).
➤ Connect your refrigerator to a plug socket which is fuse-protected with at least
15 A (at 12 Vg) or 7.5 A (at 24 Vg) (fig. e 1, page 10).
NOTICE!
•
To avoid voltage drops and loss of performance, keep the
connection cable as short as possible.
Avoid additional switches, plugs or power strips.
•
Disconnect the cooling device and other electric consumers from
the battery before you connect the battery to a quick charging
device. Overvoltage can damage the electronics of the device.
12 V 24 V
Cut-off voltage
10.4 V 22.8 V
Cut-in voltage
11.7 V 24.2 V
Coordinate axis Meaning Unit
l Cable length m
∅ Cable cross section mm²
NOTICE!
Make sure the polarity is correct.
CRE50-65-80-IO-16s.book Seite 22 Donnerstag, 9. November 2017 1:03 13
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