I have a portable AC (LG lp1015wnr) which does not evaporate the condensate. It doesn't matter if it is in Dry or Cool mode. In both modes the water is drained from the drain pipe at the same rate.
------------Edit (Further explanation)---------
Cool mode: In this mode, the AC vaporizes the condensate, so there should not be any water coming out of the middle drain. Only when the humidity level is high, the left over condensate which is not vaporized, goes down to the pan, which can be drained from the bottom of the AC.
When my AC is working in the cool mode, I see a lot of water running from the middle drain and I have to put a bucket under it. I expect the AC to vaporize that water and have the left over on the bottom pan, but as I explain, it is not happening. The question is why is this happening? Do I have to block the middle drain?