Got a 4 ton unit that is acting up on me. Below are my numbers:
Discharge pressure 235
Liquid line temp=110
Suction line temp=68
Compressor amps 10.5 out of a fla of 14
Cap tube system
A superheat of 20 is telling me that I am undercharged when my target should be about 7 degrees. Does this sound like I am on the right track?