R466A: in search of a substitute for R410A

Withdrawal of refrigerants with high GWP values and introduction of synthetic refrigerant alternatives does not always progress smoothly. This is mostly related to the flammability of the new refrigerants. As slightly flammable fluids (class A2L in accordance with the EN 378-1+A1 standard), refrigerants such as R32 or R1234ze(E) cannot be used for retrofitting existing devices …

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