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An HVAC cooling tower is used for disposing or rejecting heat from chillers. Air cooled chillers are less effecient than water cooled chillers due to rejection of heat from tower water near wet-bulb temperatures.
There are several different ways that water is used in air conditioning. The most common is using cooling towers, but the geothermal water source heat pumps are becoming popular. The cooling towers and its technology have been used in the industrial industry, large commercial, and hospitals for many years. The split system air conditioners are known as chillers. Even though the size may be different, but the concept and application is the same that is now available for residential applications.