EN
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 V
g
).
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 V
g
) or 7.5 A (at 24 V
g
) (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.
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