Hi Doc, yes, that is my point - a "4 ton unit" is probably not 4 tons at 95/57 temps. In that case, you would more likely put in a "5 ton unit" since it is closer to 48K BTUs while not being less than 48K BTUs ?
Originally posted by docholiday
The spec sheets or product data sheets give you tha actual capacities at ARI conditions. Generally that is pretty close to design. Dont assume 4 tons is 48,000. And more importantly make sure your unit matches the sensible and latnet load of the house, not nessesarily the total load.