What is the meaning of all the temperature readings on your airconditioning unit and remote? When it comes to your airconditioner, there are usually two readings that are shown. Some units only provide one temperature that will be displayed by the unit itself or on your remote controller. All airconditioners will provide you with your set point of the unit (the temperature which you have selected). Some units also indicate the room temperature which is normally displayed on the unit itself. In rare instances, do you get both readings on a domestic unit (split units). Your industrial-type units will provide you with both. It is very important to know the difference between the two temperature readings as this could have an influence on the operation of your airconditioner. The fastest way of knowing the difference is to see which one of the two readings are able to be adjusted, this would be your set point (the temperature that was selected by the yourself as the end user). Your set point is the control temperature by which your unit will know when to start and stop. If your unit does provide you with more than just the set point your other reading will be your room temperature (return air). Your room temperature or return air display can’t be adjusted and will increase or decrease according to what your unit is set to. Your room display (return air) could be used to see if the temperature does rise or fall according to what it was set to, to see if the unit is operational.