No r404a is not compatible with r409a, r134a and 404a use the same lubricates and are compatible but r409a use a different lub making them incompatible
Is r-22 Freon compatible with r-134a freon?
NO
Most systems using R-134a as a refrigerant.
No its not. 409a is compatible with r-12 but not 134a.
An R12 system must be retrofitted to be made compatible with R-134a.
The difference between brands of 134a refrigerant are largely in their quality control and price. In order to keep with standards, all are required to sell compatible refrigerant.
No
Ester (A.K.A. POE & polyolester oil) is used to lubricate air conditioning compressors. It is compatible with both R-12 and R-134a refrigerants. It is the only compressor oil compatible with R-12 systems that are retrofitted to R-134a.
No! they are not compatible and should never be mixed. You must use one or the other.
Azerotroup
there are many types of freon. cfc's fcfc's etc.