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Is it possible to retrofit r-12 to r-1234yf?


Asked by Sophia Rice on Dec 10, 2021 FAQ



R-12 systems are still eligible for retrofit to R-134a. Retrofit from R-134a to R-1234yf can be done but is exponentially expensive. There are pros and cons to having the new R-1234yf system: Pros: This system is designed to be very efficient, have low leak potential, and shouldn’t require service as frequently.
Besides,
Retrofit from R-134a to R-1234yf can be done but is exponentially expensive. Pros: This system is designed to be very efficient, has low leak potential, and shouldn’t require service as frequently. Cons: It is more costly and complicated to maintain. For example, only replacement parts are allowed for service to meet the new standards.
Similarly, Bootleg R-12 obviously eliminates the need to retrofit your A/C system if you can find it, but we would warn that the purity and quality of bootleg R-12 is questionaable. It often contains other refrigerants (R-22, R-134a), flammable hydrocarbons (propane, butane, etc.), moisture and air.
Keeping this in consideration,
Recovery/recycling/recharge equipment that can service both R-134a and R-1234yf systems is covered by SAE J3030. Refrigerant identification is a critical part of A/C service. An identifier must be used with R-1234yf recover/recycle/recharge equipment meeting SAE J2843 as a deterrent to cross-contamination.
Thereof,
There is NO reason to retrofit a vehicle to R-134a as long as the R-12 system is cooling properly and contains a normal charge of refrigerant. A/C systems designed to use R-12 will cool best when charged with R-12 refrigerant.