Contents Section: HVAC - Climate Control System - General Information and Diagnostics All sections

MAX A/C Ford Econoline E250

MAX A/C

When MAX A/C is selected

  1. the recirculation air duct door is at full vacuum, closing off outside air and admitting only recirculated air.
  2. the floor/panel door and the floor/defrost door are at the full vacuum position, directing airflow to the A/C register.
  3. the temperature is usually set for maximum cold but may be heated if desired.
  4. air will be picked up at the recirculation opening by the blower motor. With the A/C control set for maximum cold, airflow across the evaporator core will be diverted past the heater core and then directed into the passenger compartment through the instrument panel A/C register. There is also some airflow to the side window demisters.
  5. the A/C compressor will be enabled when MAX A/C is selected.
  6. the blower motor is ON.