We have some unused R 12 units (compressor / condenser). We need to cool water down. Therefore, I thought that I could change the units to f. example R 413 and buy a plate heat exchanger. Then a friend tells me that I will get a problem with return of oil, as the new refrigerants are not working so well with plate heat exchangers. As my practical experience with these new refrigerants (and *****) is limited, I would like a comment on that.
Is that so? If so, why is that so?
Saludos
Pobody