R134a systems work at higher discharge-side pressures than R12 systems, which could lead to compressor seals leaks. Additionally, since R134a is composed of much smaller molecules, it has a greater chance of leaking from an R12 system.
Can you still buy R12 refrigerant?
To be clear, it's against the law to manufacture Freon. But it's still perfectly legal to sell R12 refrigerant. Sellers might require proof of the EPA 609 certification needed to service refrigerant in cars.
Is there a drop in replacement for R12 refrigerant?
RS-24 is a “Drop-in” alternative for R12 which also provides a long term solution at the same time. It provides, therefore, a one change solution to the replacement of R12 at minimal expense. ... RS-24 has lower discharge temperatures than R12 thereby reducing degradability of the lubricant in the system.
Can R12 be replaced with R134a?
R134a is a safer replacement for R12. Another major difference is the type of oil both refrigerators require. R12 is compatible with mineral oil, and most R12 systems use this. R134a uses Polyalkylene Glycol (PAG) oil.
What happens if you put R12 in a R134a system?
R134a systems operate at higher discharge-side pressures than R12, which can cause compressor seals to leak. Bottom line, R134a simply doesn't cool as well as R12. ... R12 systems used mineral oil, but unfortunately mineral oil doesn't dissolve in R134a. So, along with R134a came a new oil: Polyalkylene Glycol—or PAG oil.May 7, 2018
Can you put R22 in a R12 system?
R12 and R22 are both now banned by the EPA in the United States. Other more environmentally friendly alternatives exist, but even those cannot be changed in air conditioners or other refrigeration units with R12 without a thorough cleaning of the unit.
Is R134a a drop in replacement for R12?
At the present time the preferred replacement refrigerant for R12 is HFC RI34a. ... However, R134a is not a 'drop-in' replacement for R12 because there is a need to change the compressor lubricant and expansion valve. Changing over from R12 to R134a can therefore be an ex-pensive and time consuming procedure.