Just an uneducated consumer with a SEER 21 AC
Our AC broke and my mother was really cranky in the hot humidity of VA. So she just wanted to get something into the house and get cool again. I sent her a ton of links to ACCA website, NATE certification website, and printed off the checklist for a manual J installation so that she could make sure the contractor was doing it right. But i dont know if he did a load calculation or not. He gave us a Carrier unit, 21 SEER that jumps from a 2 ton to a 3 ton depending on the work it needs to do to stay cool. Now that we have this super piece of equipment, what do i need to do to make sure that it is working as efficiently as possible? What about mini-duct air distribution? because i am sure we are losing a lot in old ductwork. Did we just waste a ton of money?