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(Supersedes ANSI/ASHRAE Standard 84-1991)

This standard provides rules for the testing of air-to-air heat/energy exchangers in both the laboratory and in the field.

This edition of the standard has been substantially revised to reflect state-of-the-art technology in the measurement of various moist air properties and to reflect information regarding physical performance characterizations derived from ASHRAE research. Previous versions of the standard were very prescriptive in measurement processes and yielded testing uncertainty within acceptable limits. This new edition of the standard stipulates the desired uncertainty while allowing laboratories the flexibility of selecting various testing apparatus as long as the uncertainty limit is satisfied.

Units: Dual

 

Document History

  1. ASHRAE 84-2013


    Standard 84-2013 -- Method of Testing Air-to-Air Heat/Energy Exchangers (ANSI Approved)

    • Most Recent
  2. ASHRAE 84-2008

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    Standard 84-2008 -- Method of Testing Air-to-Air Heat/Energy Exchangers (ANSI/ASHRAE Approved)

    • Historical Version
  3. ASHRAE 84-1991


    Standard 84-1991 -- Method of Testing Air-to-Air Heat Exchangers

    • Historical Version