View Single Post
Old 07-09-2003, 02:41 PM
Posts: n/a
When reverse converting, you do indeed need to totally flush the oil out of the system and replace it with mineral oil. Flush everything in the system with solvent except the compessor. Flush it a few times with mineral oil.

Then replace your expansion valve and r/d then evacuate and charge. Going back to R12 will be a worthwhile step.

Good luck,
Reply With Quote