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AHRI 550.590   2020   Performance Rating of Water-chilling and Heat Pump Water-heating Packages Using the Vapor Compression Cycle 30 $
AHRI 550.590   2018   Performance Rating of Water-chilling and Heat Pump Water-heating Packages Using the Vapor Compression Cycle (with Errata) 30 $
AHRI 550.590   2003   NULL 20 $