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Understanding AHRI Certification: Key Elements and Testing Standards

The Air-Conditioning, Heating, and Refrigeration Institute (AHRI) certification program ensures that manufacturers' performance ratings are verified through extensive third-party testing, independent administration, and international recognition. Open to all manufacturers, this program clarifies market standards through the "All-Certify" rule and the "Basic Model Group" concept. With stringent testing protocols, random selection processes, and provisions for test failures, AHRI promotes compliance and accountability in the industry. For more details, visit us at www.AHRInet.org.

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Understanding AHRI Certification: Key Elements and Testing Standards

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  1. AHRI CERTIFICATION 6-24-2009

  2. Key Elements • Uses recognized industry test standards • Verifies manufacturer’s performance ratings through extensive and continuous third party testing • Independent administration • Open to all manufacturers • Industry directed; not government mandated • Governmental interaction • International recognition • Enforcement

  3. Important Rules • “All-certify” rule • “Basic model group” concept • Random selection process • Independent testing • Test failure provisions • Challenge test • Required Re-rate • Penalties

  4. All-Certify Rule • All products within the scope of a given certification program must be certified • Universal rule for all AHRI certification programs • Eliminates confusion in the market place

  5. Basic Model Group Concept • All programs define a “Basic Model Group (BMG)” as family of products • Similar performance characteristics • Capacity • Nominal air flow • Components • Minimum of 30% of basic model groups (model families) are tested annually

  6. Independent Testing • Independent third party testing • Avoids conflict of interest • Over 2500 tests per year • Laboratory or witness tests • First preference is laboratory testing • Witness testing at manufacturers’ facility for larger products

  7. Test Failure Provisions • First Test Failure • Laboratory advises manufacturer and AHRI • Manufacturer’s options (5 days to decide): • De-rate or obsolete all models in the basic model group • Test a second sample • Prove a defect caused failure • Second Test Failure • Laboratory advises manufacturer and AHRI • Manufacturer’s options (24 hours to decide): • Mandatory rerate of entire basic model group to the test results or • Obsolete all models in the basic model group

  8. Challenge Test • Challenger • Tests model • Sends results to AHRI • AHRI: reasonable grounds? • Authorizes laboratory to obtain and test unit • Cost of test • If unit passes, challenger pays • If unit fails, unit manufacturer pays

  9. Penalty Provisions(as a result of first test sample failure) • Additional tests • Monetary penalties • Re-rate of equipment

  10. Visit us at. . . www.AHRInet.org

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