[louisnet]

I had a smaller home in the villages 1950 sq, and had a 3.5 ton unit in that home. The new home which I have lived in for 3 years is 2350 sq and has a 2.5 ton unit. I asked the company that installed it about this, and they sent me the sizing calculations that are required by the state. The newer homes are built with energy saving in mind, and require less energy to cool and heat. I have lived in the new home for 3 years and the unit has worked just fine and my wife keeps the ac at 74 degrees. All homes built in Fla require that the sizing calculations be done before installing a unit. The installer can not put in a unit then other then what is called for. There are some exceptions where a larger unit is installed, but that is when a unit is installed that runs at multiple speeds so that it is capable of using a low output so that the unit selects the correct speed. It can run longer, which is how you control humidity. An oversized unit will cool the house fast but not get rid of the humidity as well as a smaller unit running longer.