Carrier introduces the R-454B WeatherMaker for rooftop units

The WeatherMaker models feature EcoBlueTM vane axial fan technology for improved performance and reliability. Carrier’s 48/50FE WeatherMaker products are available in 3-6 tonne sizes, with larger tonnenenages and 50FEQ heat pump models. 

Carrier’s award-winning WeatherMaker single-packaged rooftop units are now available with the more ecologically friendly R-454B refrigerant, marketed as Puron Advance. Carrier is a part of Carrier Global Corporation global leader in intelligent climate and energy solutions.

The all-new Puron Advance 48FE gas heat and 50FE cooling-only WeatherMaker models use Carrier’s refrigerant of choice for light commercial and residential applications. Puron Advance refrigerant was chosen as one of the best solutions to minimise environmental impact and provide longevity based on the United Nations Montreal Protocol Kigali Agreement phasedown plan, with a GWP100 of 466 according to the Intergovernmental Panel on Climate Change Fourth Assessment Report, a 75 percent reduction from R-410A, and no ozone depleting potential. The GWP is a measure of a substance’s climate warming impact in comparison to CO2.

The WeatherMaker models include patented EcoBlueTM vane axial fan technology for improved performance and reliability. This award-winning fan design decreases maintenance and installation costs compared to prior designs and allows for cabinet sizes to remain the same, simplifying rooftop replacements.

Carrier’s 48/50FE WeatherMaker products are currently offered in 3–6 tonne sizes, with larger tonnenages and 50FEQ heat pump models expected mid-year. Carrier will move to an R-454B exclusive lineup for light commercial products, including high-efficiency heat pumps, hybrid heat models, and high outdoor air systems, by year’s end. All products are expected to launch in advance of the January 1, 2025, EPA regulatory deadline. 

Heidi Gehring, Managing Director of Light Commercial Solutions at Carrier, said, “Carrier is leading the industry when it comes to adopting R-454B and introducing R-454B systems, helping our customers prepare to meet regulatory requirements while also designing our products to be efficient and innovative. Puron Advance is the latest evolution of refrigerants and shows a commitment to going beyond the minimum, surpassing the EPA’s lower GWP requirements for 2025.”