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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.
1 When wet cooling towers â like the ones used by more than thousands of industrial businesses today â were developed, the goal was to create a system where waste water can be re-used multiple times; good cooling tower manufacturers will provide systems that use up to 98% of recycled water.