Max A/C

WARNING: This page is about a different car, the 2003 Ford Windstar. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Identifying System Airflow Description MAX A/C

Courtesy of FORD MOTOR CO.

When MAX A/C is selected:

The air inlet door vacuum control motor is at full vacuum, closing off outside air and admitting only recirculated air.
The panel door and floor/defrost door vacuum control motors are at full vacuum, directing airflow to the instrument panel A/C registers. A small amount of airflow from the side window demisters will be present.
The A/C request button will be enabled. The A/C compressor will operate automatically if the outside temperature is above approximately 6°C (43°F). In addition, the A/C compressor will operate and the indicator will be illuminated if the A/C request button is selected and the outside temperature is above approximately 6°C (43°F).
The blower motor is on.
The auxiliary blower motor (if equipped) is enabled.