After returning and talking to my BIL's (both of them went with me) neither of them had issues cooling their TT's. One had the dump out of the AC unit (but in a 20' trailer) and the other has a 27' with ducted venting.
I'm thinking the Jdubya is correct. If I open the grates on the output of the AC unit - it'll put 90% of the cooling in an area - but not in the bedroom; However, if I think about the size of the ducts - I'm guessing that it's unable to move the air through the AC unit effectively to reduce the air temp.
As to the 40 degree delta, I'm not sure where I got it - but I thought I read it on here.
Ironically, the input temp on the AC unit was about 85 degrees, the output temp in the duct was 55 degrees - but I suspect it's a volume issue - moving enough of the air through the AC unit to remove the heat effectively.
I had the blinds drawn and the vents closed - but didn't have foam in the vents or the shower skylight.
Thanks!
josh
