i'm a total do it yourselfer, re-did the plumbing and electrical on my house as well as adding a room on. my next challenge is a central ac/heater. the problem is i can't find any literature on installation. every place seems to only offer installation with purchase or they just deliver parts without complete instructions. where can i get instructions on how to install? i'm even willing to compromise and just do the duct work and get just the unit installed, but i can't find anything on that even. can someone point me to a helpful website or book? thanks in a advance.

Hello, I have a Ruud central air conditioning unit which is about 5 years old. I am wondering what are some easy preventative maintenance tasks I could perform on this unit to keep it running smooth. If not, what are some of the things I should make sure my air conditioning company does to my unit. Thanks, Joey