National Luna LEGACY Fridge Manual
8
This Fridge can accept a DC voltage
ranging from 9.6V to 31.5V, as well as
an AC voltage range from 85V to 265V.
The 12Vdc power input is protected
with a 15A automotive blade fuse.
An AC and DC source can be connected
to the refrigerator simultaneously. Under
these conditions, the AC supply will be
chosen as the primary power source.
If the AC supply is interrupted, the DC
supply will be automatically selected
and operation will continue normally.
(After a 1 minute delay)
Suggested Wiring Specifications / Guidelines
One of the most problematic issues with installing a 12 Volt refrigeration system
is incorrect wiring. Most users do not understand the importance of maintaining
battery voltage over the distance from the battery to the installed Fridge.
While most car cigarette lighter sockets appear to be adequate, in practise a
large voltage drop occurs between the socket and the car battery. This may
result in the fridge shutting down as a result of a low-voltage condition.
It is recommended the following table be used as a guide to establish what cable
thickness is to be used depending on the distance from the car battery to the
fridge. As a rule of thumb one should use a 1.0 mm
2
multi-strand copper wire
per meter of distance from the battery. (minimum 4mm
2
)
Note: Two wires (positive & negative) must be connected from the battery to the Fridge / plug point.
Cable Size
Max Length between
battery & fridge
AWG
Approximate
Cross Section
mm
2
12 Volt Operation
Meters
11
4
4
9
6
6
7
10
10
5
16
16
Connecting Power
Installation Guidelines
