Have you ever wondered how your central air conditioning system actually works? For most, we don’t give it a second thought until it goes out in the dog days of a Middle Tennessee summer. Here’s a great link to help better understand this complex system that we take for granted. http://www.amana-hac.com/Home/HeatingCooling101/HowCentralACsWork/tabid/173/Default.aspx Did you know you …