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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.
A basic knowledge of the move-. ment and usage of water in a cooling water system is es-. sential to maximizing the control over the system in prepa-. ration for running a high-cycle operation. Operation at high cycles in a cooling tower can increase. the corrosion and scaling tendencies of the water. There-. fore, exchangers that experience second- or third-pass. water can incur more problems when operating at higher. cycles.