Air conditioning machines are a major energy consumer in buildings to provide comfort to occupants of the building. A review of the air conditioning and energy performance characteristics must be done whenever new purchases are made in order to ensure that it meets the energy performance standards. Energy performance of new air conditioning machines is always determined by looking at its energy efficiency ratio.

It also involves a review of the installed air conditioning machines to ensure they’re operating optimally. A retrofit can always be done to improve energy performance of an air conditioning machine.