The U.S. Environmental Protection Agency has posted two new videos the requirements in Sections 6 through 9 of the HVAC System QI Contractor Checklist: Assessing Refrigerant Charge and Electrical Parameters Assessing HVAC Fan Airflow and Electrical Parameters The two videos show the static pressure test, electric measurement tests, and the refrigerant charge tests being conducted step-by-step in the field and then the Checklists being completed. The videos are compatible with both computers and smart phones so they can be viewed either in the office or in the field.
