EvaKool Indel B 31 - Operation; Power Supply and Operation Modes; Cable Length Specification

Evakool Indel B 31 40 50 AC/DC Compressor Portable
Fridge / Freezer – Operation Manual
3 | P a g e
3. Operation
o Power：Both DC (12 and 24 Volt) and AC (100-120/220-240 Volt) can be connected to
your unit at the same time. In this case, AC will be the preferred power supply
source. If the AC power supply is disconnected or becomes outside the correct
voltage range, after a 1 minute delay your unit will start to operate on DC power.
Once AC power is re-established or returned to the correct voltage range the unit
will start to operate on AC power without delay.
o Battery Protection: Selecting the Low, Med, High positions of the switch (next to the
DC power socket), you can choose different levels for battery protection. In the
below table you can find the voltages when the compressor stops running (cut-out)
and when the compressor restarts working (cut-in).
o Cable Length Specification
The DC cables must have a suitable cross-section for their length (measured from the battery
to the unit), according to this table:
Cable Area
12V Max Cable Length
24V Max Cable Length
[mm2]
AWG
[m]
[ft.]
[m]
[ft.]
2.5
14
2.5
8
5
16
4
12
4
13
8
26
6
10
6
20
12
39
10
8
10
33
20
66
AC minimum wire dimension：0.75mm2 or 18AWG
Battery protection
12V CUT-OUT
12V CUT-IN
24V CUT-OUT
24V CUT-IN
LOW
10.2V
11.2V
21.6V
23.0V
MED
10.7V
11.7V
22.6V
24.0V
HIGH
11.7V
12.7V
24.6V
26.0V