On 04/11/2017 09:49 AM, Kirk Wallace wrote: > Oops, after more thought, "You wouldn't want to put R-134a > in it." doesn't necessarily mean stick with the R-12, but > there may be a better alternative. I'll have to work on > this some more. Look up George Goble of Purdue. he developed several mixtures of gases to replace R12. One of them is GHG X-12. Some of his mixtures contain a lot of propane, so might not be great in a closed space that potentially could leak again. I sold him a semi-hermetic compressor that he used in a test rig to explore the oil return properties of his mixtures. So, they were apparently compatible with the motor winding insulation.
Here are some links : http://www.weidefamily.net/vanagon/pending_content/engine_conversion/16AirConditioning/R406a%20(George%20Goble).htm http://yarchive.net/ac/hydrocarbon_recipes.html https://en.wikipedia.org/wiki/George_H._Goble https://www.google.com/url?sa=t&rct=j&q=&esrc=s&source=web&cd=8&ved=0ahUKEwjPg_eh5ZzTAhVIz2MKHR1nDWUQFghNMAc&url=https%3A%2F%2Fwww.ase.com%2Fgetattachment%2FTests%2Fcfc%2F2009_r3_booklet_web_version-(1).pdf.aspx&usg=AFQjCNGCYeWNPE9iEZg7wJqP6n8hFawhYg&sig2=fVuk_oIPVKLpc_iOL3BwcQ Jon ------------------------------------------------------------------------------ Check out the vibrant tech community on one of the world's most engaging tech sites, Slashdot.org! http://sdm.link/slashdot _______________________________________________ Emc-users mailing list Emc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/emc-users
