Although water is used to assist with cooling, this technology is not related
to the conventional Evaporative Air Coolers often called swamp coolers.
Water is used to remove heat from the refrigerant and at the same time
reduce the work of the compressor. The Water Cooled Evaporative Air
Conditioner is available in a residential application of a technology already in use in commercial buildings for split system air conditioners known as chillers.
Think of this technology as a mini-chiller for residential use.
Evaporative cooled condensing units for split system air conditioners have a
number of advantages over air-cooled units. The key elements of the unit include multiple low-pressure water nozzles that spray a mist of water over the condenser coils to remove heat after the refrigerant is compressed. Water temperature can be maintained at about 10° F over wet bulb via heat absorbed through evaporation, which is then removed via a fan on top of the unit.