December Chapter Meeting: Refrigerant Updates

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Join us for a discussion on the topic of refrigerants. After viewing the presentation, attendees will be able to:

  • Summarize the drivers behind the new regulations and legislation for HVAC refrigerants.
  • Discuss the actions being taken both globally (via the Kigali Amendment to the Montreal Protocol) and domestically (via the U.S. EPA and California, New York, Maryland, and Connecticut, and Washington poised to follow).
  • Discuss the science behind why and how HVAC refrigerants are evolving.
  • Compare and contrast current and next-generation refrigerant options, in terms of environmental impact, efficiency, and safety.


Charles Jelen, Applications Engineer Trane Commercial North America, Trane Technologies™

Charles Jelen is an Application Engineer based out of La Crosse, WI.  He is primarily responsible for pre-sale support of Trane Systems and System Concepts.  His areas of expertise are in Chilled Water Systems, Refrigerants, Electrification, and System Modeling. Charles has been with Trane for 9 years and has held roles as TRACE 700 Product Manager, Centrifugal and Water-Cooled Product Support Engineer, and CDS (Customer Direct Service) Support Engineer. Prior to joining Trane Charles worked as an application and sales engineer for a process automation company out of Minneapolis, MN. Charles has a bachelor’s degree in Mechanical Engineering from the University of Minnesota and is a member of ASHRAE.