TXV Valve Change for Refrigerant Conversion R23 to R508B

[wzal]

Hi, we are planning to convert the refrigerant of a cascade system from R23 to R508B (Suva 95). Is it necessary to change the expansion valve?

Thanks,

 

[imok2]

wzal, you need to read this:

http://www.dupont.com/suva/na/usa/literature/pdf/h65923-3.pdf