ozonesafe
01-05-2014, 03:50 PM
Dear gentlemen. This is my first post in your forum. I just started working as refrigeration general helper for a local frozen food supply company. My supervisor is not very computer-literate so he asked me to do some research in regards to refrigeration oils. Copeland requires the use of ULTRA32-3MAF oil in many of their compressors, but there is a poor availability of this oil locally, besides being extremely expensive. I was not able to pinpoint the SUS/ISO number for this particular oil, but on the web I found an equivalent oil EMKARATE RL32-3MAF with an 150/32 viscosity. I have found with the local suppliers a lot of 300 viscosity oils which are suppose to be of more general use (piston, centrifugal, screw, rotary) than the copeland product, that is why they offer it. I also found a Thermo King oil 203-513 which is indeed a 150/32 but for mobile equipment. My questions are: is it possible to use a 300 oil in place of a 150/32 ?, Are mobile equipment oils similar to those of stationary compressors ?, Are all 150/32 oils compatibles, I mean can they mix, or it is necessary to drain all the oil from a previous manufacturer before adding another manufacturer´s product? Thanks for any replies.