We had a new whole house AC unit installed yesterday. We finally see the actual model numbers of the compressor and the air handler and it seems that the compressor is 3.5 ton and the air handler is a 4 ton unit. The company bid a 3.5 ton, so I don't know if I got more for my money with the 4 ton air handler, or if this mis-match is a bad thing or what. Can anyone address this? We would call and speak to the company who just installed it, but had a somewhat strange experience with them. While the techs who installed it appeared very competent, it seemed the actual model numbers changed a little along the way. I think their initial bid had model numbers from 2015, so that is not their fault. They told us the new model numbers for 2016 at one point, but I think in the end those were not the ones that were actually installed either. I don't think they short-changed us, but possibly their distributor might have been out of stock and maybe given them a better unit than the one they specified to us or something. Not sure. I am just trying to figure out if a mis-match of the air-handler and compressor is problematic. Thanks guys for any thoughts.