The push for better energy efficiency regulations has recently impacted the HVAC industry in America. …
Emerson has announced the approval of its Copeland Scroll™ and Copeland Discus™ compressors for use with R-448A and R-449A refrigerants for low and medium temperature refrigeration applications.
“Due to the phase-out of ozone depleting substances (ODS) such as R-22, and the EPA proposal to ban certain refrigerants with high global warming potential (GWP), Emerson continues to evaluate and approve new alternatives. R-448A and R-449A have a lower GWP than commonly used refrigerants such as R-404A and R-407A.”
For more information read here: http://www.emersonclimate.com/EmailCampaigns/dserv/20150424/Bulletin7-15.pdf