Operation

OPERATION

R-134a refrigerant is not compatible with R-12 refrigerant in an Air Conditioning System. Even a small amount of R-12 added to an R-134a refrigerant system will cause Compressor failure, refrigerant oil sludge or poor Air Conditioning System performance. In addition, the PolyAlkylene Glycol (PAG) synthetic refrigerant oils used in an R-134a refrigerant system are not compatible with the mineral-based refrigerant oils used in an R-12 refrigerant system.

R-134a refrigerant system service ports, service tool couplers and refrigerant dispensing bottles have all been designed with unique fittings to ensure that an R-134a system is not accidentally contaminated with the wrong refrigerant (R-12). There are also labels posted in the engine compartment of the vehicle and on the Compressor identifying to service technicians that the Air Conditioning System is equipped with R-134a.