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Types of Cooling Systems. 8. All water used to carry heat away from equipment is run through a heat exchanger, which is cooled by air, mechanical refrigeration or a separate open cooling water system . There is no evaporation or makeup water required, so contamination—and the maintenance that results—is less likely .
Over time the cooling water holds more solids, which finally will settle and form limescale. These deposits might also cause corrosion, block a pump or pipes and machines. All this might cause immense effort and cost for cleaning. This has to be avoided and cooling water treatment of the complete cooling water system is required.
