In March, the EPA approved several low-GWP hydrocarbon refrigerants for use in refrigeration and air conditioning applications, subject to use conditions. The approval drew a mixture of reactions ranging from support to concern.
In the evolving world of refrigerants, the HVACR industry is preparing for the inclusion of mildly flammable or flammable refrigerants in an increasing number of applications. But the expanded use of these refrigerants won’t happen overnight, as there is a multistep approval process they must undergo to be approved for new applications.
Will Help the Industry Understand the Comparative Risk of Using 2L Refrigerants
April 13, 2015
The Research and Technology (R&T) Committee of the Air-Conditioning, Heating, and Refrigeration Institute (AHRI) has established a Flammable Refrigerants Subcommittee that will seek to develop a set of application requirements for the use of ASHRAE-designated 2L, or mildly flammable, refrigerants.
Using Such Refrigerants in an Existing Air Conditioner Poses Risk of Fire or Explosion
July 23, 2014
The U.S. Environmental Protection Agency (EPA) has issued a warning to consumers, contractors, and technicians about the safety hazards related to charging existing home and motor vehicle air conditioning systems with propane-based refrigerants.
A major concern in our industry today is the careless promotion of hydrocarbons, or hydrocarbon-based blends, as drop-in refrigerants. Even though HC’s do have many positive attributes, in their pure state they are classified A3, and therefore if misapplied can be very dangerous to use.