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The Nova
Kool,
and in fact all compressor-based refrigeration systems use the same
process. Each system then makes minor adjustments to suit their internal and external
requirements.
Being a unit that usually gets installed into 4-wheel drives, off-road RV's, Camper-trailers,
Caravans, and boats, the fridges are exposed, and subjected to extreme environments as
compared to that of a normal refrigerator. Your in-home refrigerator sits still on a flat
stable surface, and has lots of controls, moving parts, and hidden evaporators and
condensers. It also does not have restrictive ventilation preventing good airflow over the
condenser to help remove heat.
As a test, place a thermometer in the cavity behind your Nova Kool fridge while its
operating in the middle of the day, and compare the temperatures explained in the diagram
to the temperatures on your thermometer.
Nova Kool's internals are designed to be simple, robust and to use natural convection as
well as being field repairable. Placing a fan inside the fridge upsets this convection, and
your system will fail to perform properly. The internals have also been designed so that
parts can be replaced. There are no hidden pipes, controls or wiring which can negate the
possibility of a repair. The system does not employ auto-defrost systems. These require a
moving solenoid and a way of removing liquid from the compartment. Currently there are
no solenoids on the market designed to be bounced around, and using an electrical heater
means using more power, and if the electrical controller locks into the on position, the
internal of your fridge will melt. (If you have a small old fridge you want to throw out, try
placing a 20 watt or 30 watt incandescent bulb (traditional 240 volt light bulb) into the
fridge, and leave it turned on with the door shut for a few hours. Make sure you do this in
an area that is open, and where a potential fire will not cause harm.)
The external casing (rear)of your Nova Kool fridge, may look "agricultural" and or scratched
and dinted. These are manufacturing marks The original design parameters were based on
recessing the unit into a cavity until the mounting flange is against the timber you are
mounting into. The door sits proud of the mounting flange unless the installation design
rebates the mounting flange into the cavity. The standard* black door panel can be
replaced with a panel with a colour or design to match your décor. *(The 1200 series &
5800 series are supplied with brushed stainless-steel panels)
Version 2.6
Page 9 of 20
1st June 2021
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