Water quality

Evaporative cooling occurs with the evaporation of a small portion of water. The rising concentration of dissolved solids, means further airborne impurities and biological contaminants enter the recirculating water, as the evaporative cooler ‘washes the air’.

Failure to control these impurities and contaminants will see them cause scaling, corrosion, sludge or biological fouling. For optimal heat transfer efficiency, maximum service life and minimized operating costs, the quality of the make-up and recirculating water must be ensured. You can find the water quality guidelines for all BAC material options in the paragraph "Water quality" of BAC's application guidelines.

Good water care is also vital for avoiding harmful bacterial proliferation, including legionella, in the recirculating water. BAC offers automatic water treatment packages or filtration systems to control corrosion, scaling, fouling and microbiological growth

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Contact your local BAC representative for more information.