I have an older Trane that has gone out. The model is TTRO036C100A0. I believe this is a 3.5 ton unit. The home it is in is the old family homested now a rental property soon to beup for sale. Located in TX. I am looking for a used unit that I can replace it with. I have access to an Intertherm Model 991H4271H? Supposedly 3.5 ton one year old, $XXX. I'm trying to find a good match. How can I verify that this is the correct tonage and what other factors should I know? High PSI, Low PSI? I am planning on having it professionally installed. But most licensed guys are not going to take the time to shop a good unit, I understand time is money. Advice?

(no pricing, due to site rules )


[Edited by jultzya on 02-13-2006 at 03:10 PM]