In their Q1 2025 earnings reports, Trane, Carrier, and Lennox touched on the current shortage of R-454B, as well as how tariffs could affect the price of HVAC equipment.
A2L refrigerants are replacing R-410A, offering low-GWP benefits with mild flammability risks. By following safety standards and using proper leak detection, the transition can be safe and seamless.
Tool manufacturers explain the broad categories of tools that might need an update to comply with new A2L refrigerant systems: leak detectors, manifolds, vacuum pumps, recovery machines, and gauges that can sense R-454B.
Piping requirements under A2L refrigerant guidelines will remain similar to legacy refrigerants in many cases. However, it is important to adjust calculations.
Low-GWP A2Ls provide a cost-effective alternative to pricier options like CO2 for commercial refrigeration equipment. They also feature a familiar architecture for technicians and deliver benefits such as energy efficiency and easier installation and maintenance.