R410A
Also known as: R-410A, HFC-410A
Short definitionA high-pressure HFC blend used for years in split air conditioners and heat pumps. Its GWP is 2,088; it is rarely used in cold rooms, and in new equipment it is giving way to R32 and R454B.
In cold room work R410A is mostly met next door, in the office air conditioner or the heat pump. It is half R32 and half R125, and with a glide of 0.1 K it behaves like a single refrigerant. Its pressure already reaches 8 bar at 0 °C; it works at roughly one and a half times the pressure of R404A and R22. Its safety class is A1.
Because of that pressure the compressor, pipes and fittings must be made for R410A; it cannot simply be charged into a circuit built for another refrigerant. In return the compressor and pipes come out smaller for the same capacity. It suits high evaporating temperatures: air conditioning, heat pumps, some chillers. It falls under the F-gas phase-down; in new air conditioners it is being replaced by R32, which is class A2L with a GWP of 675.