In alt.home.repair, on Thu, 20 Jul 2017 13:36:48 -0700 (PDT),
wrote:

On Thursday, July 20, 2017 at 4:23:29 PM UTC-4, micky wrote:
I have a "portable" AC with settings cool, dehumidify, and fan.

I understand "Fan" but what could the difference be between the other
two? How can it dehumidify without also cooling?

instead of discarding the heat, it send s the heat back into the room.
same as a dehumidifier does.
both the cold and warm coils are in the room air

m

tx