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Carrier's leadership with non-ozone depleting systems is unmatched in the industry. With continued ozone depletion and the corresponding negative health and environmental effects impacting our planet, vigilance to ozone protection remains as import as ever. Carrier's products deliver industry-leading energy efficiency with zero compromise on ozone protection.
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Puron refrigerant is Carrier's registered trademark for a non-ozone depleting refrigerant blend with the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE) designation R-410A. It has two components, R-32 and R-125. The blend has a higher vapor pressure than R-22 so it cannot be used in equipment designed for R-22. Puron products are among the most energy efficient in the market today.
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R-407C is a zeotrope blend of three single compound refrigerants (R-32, R-125, and R-134a) with properties similar to that of R-22 and provides zero compromise on ozone protection. Although R-407C does have similar thermal cycle performance to that of R-22, due to its large temperature glide, there are concerns with its use unless the system is designed for R407C applications. Since the composition of the blend will change as vapor is removed, R-407C must always be charged in the liquid phase. R-407C is not compatible with the mineral oils typically used in R-22 systems and the synthetic POE oil that must be used may have compatibility issues with other refrigeration components in the system. Carrier does not recommend the use of R-407C unless the systems have been designed for R-407C application or conversion of R-22 system has been approved by Carrier Engineering.
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R-134a is a single compound refrigerant with properties similar to R-12, which has been phased out as an ozone depleting substance. Its vapor pressure is lower than that of Puron refrigerant (R-410A) and it is suitable for use in chillers with flooded evaporators. R-134a chillers operate at positive pressure so they do not need a purge unit. Carrier's newest chillers utilize R-134a and as an industry first, they deliver leading energy efficiency with zero compromise on ozone protection.
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R-22 has been the industry standard for air conditioning applications. However, R-22 is an ozone depleting substance and is being phased out internationally under the Montreal Protocol and in the U.S. under the Clean Air Act. With a long tradition of environmental leadership, Carrier addressed the environmental effect of products well in advance of regulatory timetables. Carrier pioneered the industry’s global phase-out of chlorofluorocarbons in 1994 and introduced non-ozone depleting refrigerant into air conditioning systems in 1996. For additional information go to www.PhaseOutFacts.org.
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New R-22 cannot be used in equipment manufactured on or after January 1, 2010. R-22 will still be manufactured to service existing equipment until production is prohibited on January 1, 2020 but the quantities available will be reduced as the phase-out gets closer.
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Recycled and reclaimed R-22 can be used to service equipment as long as it is available.
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Additional informaiton on refrigerants can be found on the ASHRAE web site and the AHRI (Air-conditioning, heating, and refrigeratation institute) web site.
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