Honeywell announced it has joined forces with Sanhua, a manufacturer of HVACR controls and components to commercialize Solstice N41 (R-466A) for use in existing and new HVAC applications. R-466A is a nonflammable and lower global-warming-potential (GWP) refrigerant designed to replace R-410A in stationary air conditioning systems.
“We specifically designed Solstice N41 to solve industry challenges and comply with regulations; this will be a revolutionary solution once it is ready for adoption later this year,” said Chris LaPietra, vice president and general manager, Honeywell Stationary Refrigerants. “This partnership with Sanhua reaffirms our commitment to delivering a safe, energy efficient and environmentally sustainable alternative to R-410A.”
Once commercially available in late 2019, Solstice N41 will be the first A1* nonflammable, lower GWP R-410A replacement offered for stationary air conditioning systems. All other reduced-GWP alternatives proposed to date as R-410A replacements are flammable, increasing risk to homeowners and contractors. Solstice N41 also offers a GWP that is 65% lower than R-410A.
“The nonflammability attributes of Solstice N41 make it a game-changer for the HVAC industry,” said Huang Ningjie, vice president and chief scientist of Sanhua Holding Group. “We have achieved significant progress on qualifications of HVAC critical components for use in air conditioner refrigerants using Solstice N41, and the assessment is expected to be completed within this year. We’re well positioned to serve the industry as it prepares to transition to Solstice N41 later this year.”
N41 significantly reduces the need for additional design and eliminates the need to incorporate any sensors typically required for minimizing flammability risk. Early results also indicate this nonflammable, lower GWP alternative to R-410A will eliminate the need for specialized contractor training for flammability mitigation — a big advantage for the industry as it struggles to recruit and retain certified contractors.
Earlier this year, Toshiba Carrier recognized Solstice N41’s potential as a R-410A replacement to meet requirements under the Kigali Amendment in Japan early this year.
