I am referring to an Airbus A320. I have heard of Pack Flow but I don't understand it.
If you put it on High, does that mean that all the parts of the air conditioning system work faster and harder?
I have also heard that if you put it on High, that means the demand for air supply is high, and vice versa, i.e. if it's on low then the supply for air is low, but what about NORM, or Economy flow?