Im in a new house and i went outside and the condenser was a 48 (4 ton) and the a-coil was a 60 (5 ton). but saturday i ran into a problem it was like 90 out and i was trying to get it to 68 , and it was freezing up so i let it melt and set it to about 74 and it made temp, sunday it was fine. then today it jumped up to like 94 and i had them set to to 74(upstairs and downstairs) the downstairs was fine, but the upstairs got all the way to 80, which was making it freeze up again . My brother has his S1 (CT Heating,Piping & Cooling contractor license) but he was going to pennslyvania, so he couldnt get to me, i have a good idead when it comes to hvac, but i just dont know refrigerant stuff, so i called a buddy and he came over he said i was running at 130 and i was low, so he put in some r-22, hasnt froze since but upstairs got hot so it took awhile to make temp.
Now i know alot of people think because they have a/c that when it is 98 degerees out the feel they need to set their house to 58 degrees, they never know about the 20 degree differential.
But im just wonder is it usally normal to have a 5 ton a-coil and a 4 ton condensor