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While the ANSI/APSP/ICC -15 2011 Standard reduces energy use through more efficient pumps and by limiting the size and performance of those pumps based on pool size, the ANSI/APSP/ICC-15 a 2013 edition (that includes Addenda A) addresses unintended consequences associated with the pump performance limitations, specifically the 36 gpm limit for pools 13,000 gallons or less. In some instances, the actual flow of installed systems is below the minimum flow requirements of chlorine feeders and heaters.
ANSI/APSP/ICC-15 a 2013 resolves this issue by eliminating the 36 gpm maximum flow rate requirement for single speed pumps. All other pump energy efficiency requirements remain in place. Also, the 2013 edition addresses confusion caused by the similarity between the term “Maximum Flow Rate” as defined in the ANSI/APSP/ICC-15 Standard and the term “Maximum System Flow Rate” as used in ANSI/APSP-7 Standard for Suction Entrapment Avoidance in Swimming Pools, Wading Pools, Spas, Hot Tubs, and Catch Basins addressing suction safety.
A printed version is also available in the PHTA Store.