5
Power connections
The appliance may be connected to more than one source of energy; there are
provisions for both 12/24Vdc power input and 240VAC mains power input at
the rear of the unit, allowing for operation on either DC or AC power sources.
Both AC and DC power sources can be connected at the same time, the unit
will automatically revert to 240VAC mains power as the priority.
The refrigerator unit must always be connected to an adequate power supply
and DC connections must always be fused and wired with appropriately sized
cable to avoid excess voltage drop. See table below for recommended cable
sizing from battery to fridge:
Cable Size
Max Cable Length 12V
Max Cable Length 24V
mm2
AWG
2.5
14
2.5m
5m
4
12
4m
8m
6
10
6m
12m
10
8
10m
20m
Low voltage battery protection
This unit has an automatic low-voltage battery protection feature that will
automatically switch off the compressor if the DC supply voltage drops below
the Cut-Out level, and will automatically re-start operation when the DC supply
voltage comes back up to the Cut-In level. See table below:
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
NOTE:
If your refrigerator is cutting out prematurely, it could be due to
the low voltage protection being set too high, or your DC supply
wiring is not suitable enough to carry the current required. Check
supply wiring suitability and consider adjusting the battery
protection switch at the rear of the unit accordingly.
