Selecting the “Turbo” mode will over-ride the Smart Control
function and the unit will run at maximum speed
9
National Luna refrigerators have an advanced speed
control which will vary the speed of the compressor in
order to conserve power and optimise performance.
For situations where maximum cooling power is
required, press and hold the “Turbo” button until the
indicator is illuminated.
This will bypass automatic control and force high
speed operation.
Speed Control
Introduction to Smart Compressor Control
National Luna developed a Smart Compressor Control ( advanced automatic speed control) function
which has been fitted as standard to all current models.
•
Logic 1
(Setting the bin temperature in a range of +20ºC to -11ºC).
The compressor will operate at 3 speeds : low 2,000 rpm, medium 2,750 rpm and high 3,500 rpm.
On initial start-up the fridge will automatically run at full speed to bring the inner bin temperature
down as fast as possible. It will then step down to medium speed to reach the set temperature point
where the fridge will then switch off. Temperature will then be maintained at low speed.
This logic makes the fridge operate and maintain the desired bin temperature under all ambient
temperature conditions optimising performance and efficiency.
Should the temperature of the fridge contents change, such as when fresh foodstuffs are added, the
fridge will automatically speed up to cool the new contents.
•
Logic 2
Deep Freezing (Setting temperature below -11ºC).
When temperatures are set below -11ºC, the Smart Compressor Control will operate at high speed
(initial start-up) to bring temperature down as fast as possible to the desired set point. Thereafter
temperature will be maintained at medium speed.
