Concept is based on intermittently and efficiently evaporating water on a large area in front of the heat rejection surface of Mini – Split, Rooftop, Air Cooled Chillers, Condensers and Dry Coolers. Adiabatic cooling systems function similarly to dry cooling systems but with the incorporation of pre-installed net; spraying water over pre-installed net and drawing air through the net depresses the ambient dry bulb of the incoming air. The depressed dry bulb allows for greater system heat rejection.