I agree with Frank, until the room needs to be heated....

If the heat rejection from the absorption system can be applied to the room space, the absorption unit makes some sense but not a useful by product if the hotel's in the Carribean.

Why not try a eutectic freezer at each level? Then you won't have to be concerned about the room below's disposition or the guests using the ice IN their drinks...

I suppose that's cultural as well, but...