Rapid corrosion damage to air conditioning systems in large office buildings in urban areas where the atmosphere is heavily contaminated by sulfur dioxide is demonstrated in a case history of a 1720-ton cooling system in the 35-story McGraw-Hill Building at 330 West 42nd Street, New York City.
Leaks at several points in the building’s cooling tower piping gave the first indication to damage only 18 months after the system went into operation. the smaller units could be placed at
The building is cooled by packaged over a single tower for esthetic reasons: tions on the structure’s various setbacks. This complex arrangement was selected through 14 separate cooling tower systems units using cooling water circulated involving 18 towers in six different loca-various places without altering the building’s silhouette. Cooling towers are of the forced draft and induced draft type.
The corrosion damage first was suspected to be caused by electrolysis from...
