ATMO America: UL Working Group Aims to Update Propane Charge Limits for HVAC by 2028

ATMO America: UL Working Group Aims to Update Propane Charge Limits for HVAC by 2028

A UL working group focused on updating charge standards for flammable (A3) refrigerants like propane (R290) in HVAC applications such as outdoor monobloc heat pumps is aiming to finish revised text in 2027 that will be incorporated in the 2028 (fifth) edition of the UL/CSA 60335-2-40 safety standard for electrical heat pumps, air-conditioners, and dehumidifiers used in the U.S., Canada and Mexico. Read the full story on NaturalRefrigerants.com [https://naturalrefrigerants.com/news/atmo-america-ul-working-group-aims-to-update-propane-charge-limits-for-hvac-by-2028/]

Transcritical CO2 Refrigeration Expands Across Australia and New Zealand

The use of transcritical CO2 (R744) refrigeration in commercial and industrial applications continues to rise in both Australia and New Zealand, according to ATMOsphere’s report “Refrigeration: Commercial and Industrial Refrigeration with Natural Refrigerants [https://atmosphere.cool/refrigeration-commercial-and-industrial-refrigeration-with-natural-refrigerants-2025/].” Read the full story on NaturalRefrigerants.com [https://naturalrefrigerants.com/news/transcritical-co2-refrigeration-expands-australia-new-zealand/]

ATMO America: Zero Zone Supplying 91TR CO2 System for Nashville Grocery Fulfillment Center

U.S. manufacturer Zero Zone [https://naturalrefrigerants.com/partner/zero-zone/] is supplying a 91TR (320kW) transcritical CO2 (R744) refrigeration system for a new grocery fulfillment center in Nashville, Tennessee, according to Director of Industrial Sales John Collins. Read the full story on NaturalRefrigerants.com [https://naturalrefrigerants.com/news/zero-zone-91tr-co2-system-nashville-grocery-fulfillment-center/]

ATMOsphere Launches New Website Showcasing 2026 ATMO Approved Label Companies

ATMOsphere, publisher of NaturalRefrigerants.com [https://naturalrefrigerants.com/], has launched a new website [https://approved.atmosphere.cool/] showcasing the 2026 ATMO Approved Label Companies. The site features individual profiles for all of the companies approved for the 2026 version of the label. Each profile contains an “impact report” that details how the company’s products or work – contractors are also eligible for the label – have contributed to a reduction in CO2 and TFA (trifluoroacetic acid) emissions.\ Read the full story on NaturalRefrigerants.com [https://naturalrefrigerants.com/news/atmosphere-launches-new-website-showcasing-2026-atmo-approved-label-companies/]

Magnotherm Announces Stellar, a 125kW Refrigerant-Free Magnetic Cooling System for Data Centers, HVAC and Industry

Magnotherm has announced Stellar [https://www.magnotherm.com/stellar], a new refrigerant-free magnetic cooling system with a max capacity of 125kW (35.5TR) designed for both commercial refrigeration and commercial HVAC. Read the full story on NaturalRefrigerants.com [https://naturalrefrigerants.com/news/magnotherm-announces-stellar-a-125kw-refrigerant-free-magnetic-cooling-system-for-data-centers-hvac-and-industry/]