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  1. Home
  2. Guideline 22-2025 -- Instrumentation for Monitoring Central Chilled-Water Plant Efficiency

Guideline 22-2025 -- Instrumentation for Monitoring Central Chilled-Water Plant Efficiency ✓ Most Recent

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standard by ASHRAE , 2025

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Full Description

ASHRAE Guideline 22 defines recommended methods to determine chilled-water plant thermal load, energy use, and efficiency. The guideline defines recommended measurement systems and calculation methods to determine energy consumption and thermal flows for cooling and heating, as well as procedures for acquiring test data and calculating system efficiency.

The 2025 edition includes:

  • Revised purpose and scope
  • Added example for thermal storage (e.g., ice storage)
  • Revised figures of example chilled-water plants
  • Updated terminology related to uncertainty of measurements and calculated results
  • Updated references
  • Minor editorial changes

 

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Document History

  1. Guideline 22-2025 -- Instrumentation for Monitoring Central Chilled-Water Plant Efficiency

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    April 2025
    Guideline 22-2025 -- Instrumentation for Monitoring Central Chilled-Water Plant Efficiency

    • Most Recent  Most Recent
  2. Guideline 22-2012 -- Instrumentation for Monitoring Central Chilled-Water Plant Efficiency

    January 2012
    Guideline 22-2012 -- Instrumentation for Monitoring Central Chilled-Water Plant Efficiency

    • Historical Version
  3. Guideline 22-2008 -- Instrumentation for Monitoring Central Chilled-Water Plant Efficiency

    January 2008
    Guideline 22-2008 -- Instrumentation for Monitoring Central Chilled-Water Plant Efficiency

    • Historical Version

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  • ASHRAE > Standards and Guidelines > Current Guidelines

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Published:

2025

Number of Pages:

56

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Dual

File Size:

1 file

Product Code(s):

D-86958, 86958

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