I know I probably wont give anyone enough info to give a good opinion , but what the heck.
Worked on a 15 year old split a/c today. Carrier condenser with magic chef AH. Not sure about the tonnage. If i had to guess i would say 10 ton. data plates were gone. Anyways, my pressueres were 60 suction and 300 head. Airflow was good, coils were clean. Unit has about 100' line set, 25' of it is vertical. Suction line temperature at the compressor was only 36*. I'm thinking bad TXV. Return air was about 80*. Outside air at condenser was 85*. Anyone care to give your .02 ?