Hi. I have a vintage air heat/cool/defrost system in my 47. It is installed but the AC part has never been charged or operated. It was bought back in 2003. In those days R134a was the replacement for R12. Now I see the Canadian government has restricted the use of R134a to AC shops only. You can’t seem to get, at least easily, small cans of R134a to DIY. I was hoping to do this myself.
I have read that R12a is a drop-in replacement for R134a. I contacted vintage air and they have not tested R12a in their systems as small cans of R134a are still readily available in the US.
So my questions are:
1) Has anyone made the switch from R134a to R12a? What was your experience? How did the system perform?
2) if you did, did you have to make any other changes to the system? I’m thinking the trinary switch (pressure set points) or compressor oil may not be suitable/compatible.
Any other thoughts or ideas would be greatly appreciated.
I have read that R12a is a drop-in replacement for R134a. I contacted vintage air and they have not tested R12a in their systems as small cans of R134a are still readily available in the US.
So my questions are:
1) Has anyone made the switch from R134a to R12a? What was your experience? How did the system perform?
2) if you did, did you have to make any other changes to the system? I’m thinking the trinary switch (pressure set points) or compressor oil may not be suitable/compatible.
Any other thoughts or ideas would be greatly appreciated.