ANSI/AHRI 551/591 (SI)-2012 with Addendum 3: Performance Rating of Water-Chilling and Heat Pump Water-Heating Packages Using the Vapor Compression Cycle

Standard Scope:
This standard establishes a single set of testing and rating requirements for determining capacities, energy efficiencies (power input per ton, COP), water pressure drop, IPLV (integrated part load value), and NPLV (non-standard part load value) for water chilling packages using the vapor compression cycle; whereby, equipment performance ratings can be compared from product to product. The standard applies to chilling packages including one or more hermetic or open drive compressors (centrifugal, rotary screw, scroll, reciprocating, or other types), equipped with either water-cooled, air-cooled, evaporative-cooled condensers or supplied without a condenser.

Free Downloads:
ANSI/AHRI 551/591 (SI)-2012 with Addendum 3
Appendix G Pressure Drop Adjustments
Calibration Worksheet

© 2011, by Air-Conditioning, Heating, and Refrigeration Institute