EN
Installing and connecting the refrigerator
CRX50, CRX65
18
7.5
Connecting the refrigerator to DC voltage
A
The refrigerator can be operated with a 12 V or a 24 V DC voltage supply.
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.
The use of a load dump board installed on the compressor control module electron-
ics is mandatory. If one of the components has to be replaced handle them as one
unit. Always replace both components together.
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.
0
, page 8.
Key to fig.
0
, page 8:
A
NOTICE! MATERIAL DAMAGE
•
To avoid voltage drops and loss of performance, keep the
connection cable as short as possible and directly connected from
the power source to the DC wire connection of the unit. Therefore
avoid additional switches, plugs or power strips.
•
Disconnect the cooling device and all power source connections
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! MATERIAL DAMAGE
Make sure the polarity is correct.
CRX50-65-Truck-IO-US.book Seite 18 Donnerstag, 18. Oktober 2018 3:51 15
Summary of Contents for CoolMatic CRX 50
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