Clearing Up Misconceptions About A2L Refrigerants

['Justin Bailey Is A Technical Trainer With Heatcraft Refrigeration Products', 'Has Worked In The Hvacr Industry For Nearly Years. After Running An Hvac Service Company For Years', 'Bailey Moved Into Training', 'Became The Hvac Department Director At A Technical School. Bailey Holds An Unrestricted License In The State Of Georgia', 'Is A Proctor For Epa Refrigerant Certification Exams. For Additional Information', 'Hannah Belloli', 'Joanna R. Turpin'] ACHR News 2025-09-24 06:15:13

As the HVACR industry enters a new chapter with the adoption of mildly flammable (A2L) refrigerants, it’s more important than ever to separate fact from fiction. Class 2 refrigerants have low flammability, while a subclass of that group — Class 2L refrigerants — are considered mildly flammable. It is also important to understand that an existing A1 system cannot be retrofitted to use A2L refrigerants, and there are no drop-in options. Ask ACHR NEWS →Walk-in coolers and freezers using A2L refrigerants also require leak detection due to their enclosed nature. Facing ChangeThere’s been a lot of noise around A2L refrigerants — claims that they’re inefficient, unstable, expensive, or unsafe.