This video provides an overview of the new refrigerant requirements and how they will affect the HVAC systems as well as system efficiency. Contractors and installers,Mechanical, electrical, and plumbing engineers HVAC,IECC,refrigerants You may also like 1:08:49 IECC 2021 Commercial Lighting 53:13 IECC 2021 Commercial Mechanical and Plumbing 41:09 IECC 2021 Commercial Architectural «1…789Page 9 of 9