Posted 8/1/2024 16:36 (#10835538 - in reply to #10835508) Subject: RE: Charging AC system with R290
Look up the pressure temperature chart for r290 and proceed. Each system might be a bit different. In my old r12 sytem the bottom reads about 25 psi and the high 175 when the outside temp is 100 F. The evap puts out white foggy cold air.
Charging AC system with R290
