Changing the refrigerant % in a blend changes saturated (boiling/condensing) points. It will no longer follow a PT conversion and make superheat and subcooling impossible. The unit may still "bLoW CoLd AiR" but it will not be possible to know how much refrigerant is in the evaporator coil. How much superheated vapor is returning to the compressor or how much subcooles liquid is stacked in the condensor. For example: 454A, 454B 454C all contain R32 and R1234yf but at different % in the mixture wi
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Upcoming Refrigerant Changes: How the R-454B (Puron Advance) Transition Affects You | Fire & Ice
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