r-134a to r-22

[proby]

Is it possible to change the oil in a med temp r-134a to mineral oil and use r-22 with out changing cap tube.

[paul thompson]

you dont want to be converting to r22 now .it going to be phased out SOON.

[chemi-cool]

Is it possible to change the oil in a med temp r-134a to mineral oil and use r-22 with out changing cap tube.

Physically its possible but it wont work.

[bigfella]

Why would you want to do something as irresponsible as replace R134a with R22?

Granted, R22 has a slightly higher volumetric efficiency and therefore requires smaller compressors, condensers and suction pipework, the envoronmental consequences of such a stupid move would outweigh any benefits.