difference between ducted & non-ducted A/C

spike99 wrote:
Like a few folks, I also converted my AC duct TT to a non-duct system by removing its chamber plate. A few screws and the AC now only blows air into our TT's main open floor area. Much better than trying to push air through small air ducts in the attic. IMO, our TT gets cooler much faster. One of the best mods I've done to my TT.

I did a variant of what you did by adding a register right at the junction of the main air plenum and the duct run on each side of the A/C so that I could get a much colder and higher air flow in the vicinity of the main A/C unit and still get some air to the extremes of the trailer. Not quite as good as the units that have registers in the main air plenum proper, but I didn't want to mess with cutting holes in the main air plenum and messing with it's engineered design. It gives me IMO the best of both systems w/o loosing either.

I also almost doubled the number of registers since the manufacturer only installed the minimum and closing any of the factory configured registers would actually reduce the overall cooling capacity so now I can somewhat redirect where the ducted air is concentrated.

Larry