Just got told I'll be going to pressure test, find leak and fix of a totally flat RTU. Havent been to this site so not sure the make of unit. It's a R22 system. Was told I can switch to R422b. Wouldn't mind giving it a shot. Any advice? Is it the exact same weight or will this be charged by subcool?

Posted by SJ_Milton at 2021-05-13 17:01:00 UTC