In general, air conditioners work best in cooling mode when the temperature is set between 22°c to 24°c with a medium or high fan speed setting. You can change it according to your preferences at any given moment, but the efficiency may be impacted negatively.
The closer the set point on the air conditioning controller is to the outside temperature, the more efficient your air conditioner will run. The set point is the temperature the user inputs into the controller.
Ford & Doonan believe that the ideal set point, in cooling mode, is between 22°c and 24°c considering that the outside temperature is 36°c or below. When the outside temperature goes over 36°c, the efficiency of the unit may be negatively impacted. This is not a fault of the air conditioner, it is due to the capacity ratings set by the air conditioning unit manufacturers and not by Ford & Doonan.
These temperature capacity ratings are set by the manufacturer to satisfy a variety of climates across the world.
By selecting the set point between 22°c and 24°c, the air conditioner will be operating in an efficient, cooling mode.