R22 Replacement
R22 Replacement
(OP)
This is topic that has come up a few times for instance:
Thread403-76193
From the discussion mentioned above I received the following information: The best drop-in replacement refrigerant is:
R407C, R17A, R134A and/or R417A
I know each has its own advantanges and disadvantages, but generally speaking what really is the best drop in R22 replacement?
My specific application is an ice rink that is being torn down and a new one built on top. The owner would like to keep the existing refrigeration equipment - Shell and tube HX, calcium chlorine is the secondary refrigerant. Although R22 doesn't phase out untill 2020 I'd still like to replace it now while we're doing work.
As always thanks all.
Thread403-76193
From the discussion mentioned above I received the following information: The best drop-in replacement refrigerant is:
R407C, R17A, R134A and/or R417A
I know each has its own advantanges and disadvantages, but generally speaking what really is the best drop in R22 replacement?
My specific application is an ice rink that is being torn down and a new one built on top. The owner would like to keep the existing refrigeration equipment - Shell and tube HX, calcium chlorine is the secondary refrigerant. Although R22 doesn't phase out untill 2020 I'd still like to replace it now while we're doing work.
As always thanks all.





RE: R22 Replacement
check with suppliers, look at the pressure-enthalpy charts,
and review the costs involved.
RE: R22 Replacement
R 407C but it's not a "drop-in." POE oil required.
RE: R22 Replacement
If your goal is to reuse your refrigeration system with little or no modifications, you best bet may well be to stick with R-22. It'll be around for a long time.
RE: R22 Replacement
RE: R22 Replacement
RE: R22 Replacement
Clyde
RE: R22 Replacement
Also consider that if you just change to R134a, the capacity of the compressors will be much lower. I undertand you do not want to change the compressors. You must check in manuals capacities and electric consumption of compressors with the new refrigerant.
Consider also that R-407c has a big glide. Something a little complex to describe here and related with the non azeotropic mixtures, but this might lead to degradation of the refrigerant, problems with oil, etc..
I think a better alternative is R-404a wich also has a glide problem, but smaller. You have clean all the system, change oil, confirm gaskets will work with POE (Polyester oil), when charging the R-404a must be donde in liquid phase.
Hope some of this might help you.
Regards