Post by coldspaces on Feb 25, 2014 22:29:19 GMT
Other than the windings and their cotton insulation/wood slates I would think the rest of the materials in our old machines compressors would be metal and not bothered by using POE oil in it. If a compressor motor has been rewound with R-134a compatible windings would there be any reason to not use POE oil? I am thinking it would be not problem.
I know we have discussed this some before when I was converting my DR to 134A and decided that it may not be that important to swap to POE oil with the flooded evaporators our machines use causing the oil to float to the top for removal. So far this theory is working on my DR, I have had no trouble with oil return in my DR using the original mineral oil.
If a person is going to go to the trouble of having one rewound it would be nice to know if POE oil is a safe option.
This talks about it being better with most metals than conventional lubricants,does say zinc could be an issue.
docs.lib.purdue.edu/cgi/viewcontent.cgi?article=2143&context=icec
Thanks in advance for your input.
Coldspaces
I know we have discussed this some before when I was converting my DR to 134A and decided that it may not be that important to swap to POE oil with the flooded evaporators our machines use causing the oil to float to the top for removal. So far this theory is working on my DR, I have had no trouble with oil return in my DR using the original mineral oil.
If a person is going to go to the trouble of having one rewound it would be nice to know if POE oil is a safe option.
This talks about it being better with most metals than conventional lubricants,does say zinc could be an issue.
docs.lib.purdue.edu/cgi/viewcontent.cgi?article=2143&context=icec
Thanks in advance for your input.
Coldspaces
