The standard mandates a specific laboratory configuration. This includes a long straight duct section (to smooth airflow), a pressure-sensing plane, and a receiving chamber for air outlets. Without this precise setup, test results are not comparable between manufacturers.
By following these recommendations and adhering to ASHRAE Standard 70-2006, the HVAC industry can ensure that air-to-air heat exchangers are designed and installed to provide optimal performance, energy efficiency, and indoor air quality. ashrae standard 70-2006 pdf
In the world of Heating, Ventilating, Air Conditioning, and Refrigeration (HVAC), few organizations carry as much weight as ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers). Their standards form the backbone of modern building codes, energy efficiency regulations, and indoor air quality protocols. The standard mandates a specific laboratory configuration