Operating Your Fridge/Freezer - 12/24V Dc; Power Requirements - Primus Single Zone Owner's Manual

Power Requirements

The Fridge/Freezer is designed to operate
on AC or DC voltage.
• AC input 220-240V AC at 50Hz
(e.g. electrical power point)
• DC input 12V or 24V DC
(e.g. car cigarette lighter or car battery)
• The power supply automatically switches
the Fridge/Freezer to mains operation when
connected to 100-240V mains power, even
if the 12V/24V DC power cable is connected.
• If the Fridge/Freeze is operating when the
vehicle ignition is switched OFF, the Fridge/
Freezer will switch OFF automatically when
the power source voltage falls below the
Battery Monitor cut-out setting.
• The Fridge/Freezer will automatically switch
back ON when the vehicle is re-started and
the power source voltage reaches the Battery
Monitor cut-in setting.
Operating your Fridge/Freezer
with 12/24V DC
• Plug the 12V/24V DC power cable into the
DC POWER socket (as circled) on the end of the
Fridge/Freezer and then connect to the vehicle
cigarette lighter socket or suitable 12V or 24V
DC power source.
• The Fridge/Freezer will automatically turn on,
there is no requirement to switch the appliance on.
• The display will automatically show the current
internal cabinet temperature.
• For optimum performance and efficiency, it is
important that the Fridge/Freezer has a reliable
DC power source available. Direct connection
to the battery is recommended and reduces the
risk of voltage dropping to the appliance.
• Use only the 1.5m DC power cable supplied with
the Fridge/Freezer.
ImportaNt: If a DC extension cable is required
we recommended use of a 6mm dia. (AWG11)
4.58mm Twin Sheath Two Core cable with direct
2
connection to the positive and negative battery
terminals with 15A inline fuse protection.
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Single Zone and Flexi Zone + Fridge/Freezers
• The Fridge/Freezer is equipped with an electronic
control system that will prevent polarity reversal.
In the event that the battery connection is reversed
the unit will not start or operate. The power input
socket is fitted with a 15A blade fuse for protection.
12/24V DC Power Requirements
If your Fridge/Freezer is cutting out prematurely,
it could be due to:
1. The low voltage protection being set too high
on the Battery Monitor
2. DC power cable and/or connections are not
suitable to carry the required current. Check the
power cable and all connections and adjust the
Battery Monitor on the control panel.
• The Fridge/Freezer is equipped with a multi-
level Battery Monitor that protects your vehicle
battery against excessive discharging when
the Fridge/Freezer is connected to 12V or
24V DC power source.
ImportaNt: When using the Fridge/Freezer with
DC power supply, we recommended setting the
Battery Monitor to LOW (L).
Note: A battery charger may only be connected
to the battery when the Fridge/Freezer has been
disconnected from the DC power source.
• Over-voltage may cause damage to the
electronics of the Fridge/Freezer.
• Your Fridge/Freezer is equipped with reverse
polarity protection. It protects your Fridge/
Freezer against reverse battery connection and
short circuit.
• As a protection for your battery, the Fridge/Freezer
switches OFF automatically if the power source
voltage is insufficient.
Note: It is important that the correct cable size and
gauge is used for the installation of the DC supply
as over distance the voltage can decrease if the
incorrect cable size and gauge cable is being used.
• Always consult a qualified automotive electrician
when using a DC extension cable.