Johnson Controls is working to make its chillers compatible with Chemours' refrigerant Opteon XP10 (R-513A).
“As the industry is by now well aware, there are three specific HFC bans in place that directly affect the air-conditioning business. (*see table below)
- HFCs with a GWP > 2500 from 1st Jan. 2020 in all stationary refrigeration equipment.
- HFCs with a GWP >150 from 1st Jan. 2020 in all hermetically sealed mobile a/c equipment.
- HFCs with a GWP > 750 from 1st Jan. 2025 in all single split systems with a charge below 3kg.
“Although, none of the above bans will directly impact on the use of R-134a (GWP-1300) in chiller plant, there is, however, a requirement to reduce the use of HFCs in Europe to 21 percent of the current position in phased steps by 2030. As a result, the search is on for an efficient, low GWP, low-toxicity, non-flammable, low cost alternative to R-134a.”
“Given that the major contributor to CO2 emissions over the lifetime of a chiller is related to the chiller operating efficiency, not the refrigerant used, lunging to a low GWP refrigerant solution that results in a reduced chiller operating efficiency may be akin to ’throwing the baby out with the bathwater’. Now is a time for calm heads.”
“Based on the results, we have concluded that R-134a remains the best solution. It continues to give the best balance of cost/kg, efficiency, GWP, toxicity and flammability. However, to alleviate any uncertainty and concerns with regards the price and availability of R134 over time, we recognise the need to “future proof” our chillers.”
Johnson Controls is now making its entire screw and centrifugal chillers (both air and water cooled) compatible with R-513A. The company based its decision on the refrigerant because it has the best operational efficiency, it is suitable for all of Johnson Controls 'global screw and centrifugal chillers', it is a good 'drop-in' for R-134a, it has A1 safety classification and its GWP is 56% less than R-134a.
“Future proof” your decision by ensuring your chiller is suitable for future replacement with R-513A, if required.”