WTF does Max A/C do?

[Particle Man]

Originally Posted by 101lifts2

Yes, that is because he doesn't know wtf he is talking about.

Max A/C is for cabin air recirculation only. Notice when you have a Recirc button, you don't have a Max A/C setting. When you have a Max A/C setting, you don't have a recirc button.

Most compressors nowadays don't cycle anyway. They are either ON or OFF. The pressure control is done with valving in the compressor itself. This is not to say that the engine controller cannot turn OFF the compressore if the high side pressure becomes too high or too low or if you in a W.O.T. scenario.

My Kia has both a max and a recirc setting. I can recircate the air on every setting. When "Max" is selected, I can't override the recirculate feature.

The Subaru only has the recirc button and no "Max" setting.