Dometic COOLMATIC FC40 Operating Manual page 11

FC40
7.3 Connecting the cooler
Connecting to a battery (Vehicle or boat)
The cooler can be operated with 12 V or 24 V
A
NOTICE! Danger of damage!
Disconnect the cooler and other consumer units from the battery before
you connect the battery to a quick charging device.
Overvoltage can damage the electronics of the device.
For safety reasons the cooler is equipped with an electronic system to prevent the
polarity reversal. This protects the cooler against short-circuiting when connecting to
a battery.
➤ Plug the 12/24 V connection cable (fig. 1 2, page 2) into the device
DC voltage socket and also into a 12 V or 24 V cigarette lighter socket.
7.4 Using the battery monitor
The device is equipped with a multi-level battery monitor that protects your vehicle
battery against excessive discharging when the device is connected to the on-board
12/24 V supply.
If the cooler is operated when the vehicle ignition is switched off, the cooler switches
off automatically as soon as the supply voltage falls below a set level. The cooler will
switch back on once the battery has been recharged to the restart voltage level.
A
NOTICE! Danger of damage!
When switched off by the battery monitor, the battery will no longer be
fully charged. Avoid starting repeatedly or operating current consumers
without longer charging phases. Ensure that the battery is recharged.
The switch-off and switch-on points measured at the connection terminals of the
compressor are listed in the following table:
Battery monitor mode
Switch-off voltage at 12 V
Restartvoltage at 12 V
Switch-off voltage at 24 V
Restart voltage at 24 V
EN
g
.
LOW
10.4 V
11.7 V
22.8 V
24.2 V
Operation
HIGH
11.3 V
12.5 V
24.6 V
26.0 V
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