Haveing some problems with a/c pressure 85 degree outside air temp inside 80 pressure is 50 and 225 12seer unit when I first went to the job had 90 and 175 found compressor bad replaced condenser then had pressure 40 250 changed tx valve perfect pressure 70 190 then called back unit frozen found that I had leak by tx on equalizer my falt also I had soldered it closed so I replaced it now I have 50 225 tryed to adjust it but cant get good temp at right pressure