At the 98 degrees indicated in your first post, you should have 120 psi botyht sides with the compressor off and the car just started.
Here is a pressure/temp chart even if somewhat hard to read.
http://www.prevostcar.com/DB/services/maintenance/Maintenance%20du%20syst%E8me%20CVC.pdf#search='r134a%20pressure%20chart'