I believe it's 500 lbs. I have the 3011 but am not at home. If someone else doesn't post before I get home I will go out there and look. When I bought the coach there was a sticker on the wall stating the max weight. I took it off the wall and put the sticker under the mattress.
My Sunseeker 2250 also says 440 lbs. It is on a sticker right on the wall by the bunk and impossible to miss. I guess I just assumed that all of them would have a weight limit sticker on them for safety's sake.