Evapco unit marked Adiabatic Coolers and Dry Coolers with pre-cooling pads

Photo: Mariusz Młynarczyk / CloudAir.tech

An Evapco cooler carries panels reading "Adiabatic Coolers" and "Dry Coolers" and a label for the "Adiabatic Pre-Cooling System". Cellulose pre-cooling pads line its side and copper water piping runs across the top, with "Principle of Operation" graphics on the white and teal walls behind.