We have a 2005 Beaver Patriot with front and rear ACs. Both new last summer, replaced original 5 button t-stats with new CCC2t-stats. Both operate OK. Question; Should the front and rear ACs be connected with the 4 wire phone cord? Two mechanics I've had work on the coach refuse to connect the two, they say you would only do that if you had one CCC2 operating both ACs. I get zone 1 on the front t-stat and (I think) zone 1 (blinking) on the rear bedroom t-stat and zone 2 and 3. Seem to work ok, I'm just wondering if the two ACs need to be connected so they can 'talk' to each other?? I don't know what they would talk about.......
