A/C or no A/c That is the question

I have noticed that When I put the air flow locator knob (for lack of the technical term) on Max (enter lil top flow picture here) It works quite well. But I do not press the A/C Button..
... Is this actually working as the a/c and the light just isnt on.. or is the fan just really powerful?

Random I know. But I am very curious.. so input is very welcomed!

I believe the a/c kicks in when the switch is placed on max irregardless of whether the a/c switch is pushed or not.