After substantial research, testing, and assessment, Johnson Handles has chosen R-454B, a lesser global warming possible (GWP) refrigerant, to displace R-410The in its ducted business and residential unitary items and also air-cooled scroll chillers.
Systems utilizing the new refrigerant will be designed for Johnson Controls, YORK®, Luxaire®, Coleman®, Champion®, TempMaster®, Fraser-Johnston®, Guardian®, Evcon™ and Quantech® branded items in North America, along with specific international marketplaces where codes come in alignment.
This choice was made because the HVAC market is preparing to stage out high-GWP refrigerants, such as for example R-410A, which are now formally addressed by environmentally friendly Protection Company (EPA) through the lately passed American Advancement and Manufacturing (AIM) Action.( 1) DESIRE TO Take action directs the EPA to stage down U.S. hydrofluorocarbon (HFC) production and make use of by approximately 85% on the next 15 yrs.
After evaluating many low-GWP alternatives on a number of market and overall performance metrics, such as for example safety, capacity, efficiency, dependability, longevity and availability, Johnson Settings has determined R-454B to function as best-in-class( 2) substitute refrigerant – a choice echoed by additional leading HVAC producers. R454B gets the lowest EPA SNAP( 3) accepted GWP for unitary apps of all ASHRAE categorized A2L (low-toxicity, slight flammability) refrigerants available today, to arrive at 466. That is one-5th the GWP of R-410A, less compared to the pending 750 GWP limitations being offering and proposed the longest-term viability.
“Utilizing R-454B had been an obvious decision, but one which got years of in-depth research, testing, and evaluation,” mentioned Chris Forth, executive director of regulatory, codes and environmental affairs, Ducted Systems, Johnson Controls. “This decision maximizes environmental benefits, which can only help to prevent, if not avert completely, another, near-term transition for the unitary sector. Because the AIM Act phase-down schedule progresses, higher-GWP fluids such as for example R-32, today while viable, have got the potential to end up being eliminated being an option because of their high-GWP values. Johnson Handles shall continue steadily to evaluate lower-GWP options for future possibilities.”
Along with decreasing environmental impact, R-454B is more appropriate for present R-410A equipment designs, demands less or similar refrigerant charge, and will reduce the energy usage of HVAC systems and improve system efficiency. The comparable operating features with R410A shall lead to a smoother changeover for distributors, wholesalers, and contractors.
Pending Refrigerant Mandates
“It’s vital that you remember that these pending mandates from the EPA and the California Air Resources Board (CARB) would only connect with the sale of new residential and commercial unitary equipment in addition to air-cooled scroll chillers. Of January 1 because the pending regulations stipulate a particular manufacturing cutoff date, 2025, january 1 for residential and light industrial unitary products and, 2024, for air-cooled scroll chillers, existing R410A equipment created to that date could be sold and set up indefinitely prior,” said Forth. this season “EPA and CARB are usually scheduled to begin with their formal rule-making procedures, which will regulate how long of a servicing period will undoubtedly be given for R410A equipment currently operating.”
Once we approach the refrigerant transition cutoff dates, safety specifications and building codes should be updated to the widespread market launch of mildly flammable earlier, low-toxicity A2L refrigerants such as for example R454B. Extensive, multi-12 months testing and analysis has been carried out by ASHRAE, AHRTI (4) among others to guarantee A2Ls could be safely deployed. Proper teaching shall be critical to guarantee the safe use, storage and transport of The2L refrigerants. Johnson Controls is focused on making sure the safe transition to R-454B by giving in-depth training because of its contractors and technicians before the pending refrigerant transition dates.
1 h ttps://www.epa.gov/climate-hfcs-reduction/aim-act
2 Lowest GWP rating of EPA SNAP approved alternatives, by the publishing of the notice.
4 Air-Conditioning, Heating and Refrigeration Technology Institute