Tested A2L refrigerants difficult to ignite, had low flame speeds
ARLINGTON, Va. — AHRI released results of a project undertaken in cooperation with UL and the Firefighter Safety Research Institute (FSRI) in which refrigerants classified by ASHRAE as A2L (lower flammability) were tested and compared with A1 (no flame-spread) refrigerants in real-world situations. The effort was undertaken to develop training programs for firefighting personnel when responding to fires in occupancies with both new (A2L) and existing (A1) refrigerants.
The project included scenarios designed by fire service professionals to develop training for tactical consideration to demonstrate hazards that may be encountered by the fire service for both A1 and A2L refrigerants.