Operation CHARM: Car repair manuals for everyone.

Manual Climate Control System

MAX A/C
When MAX A/C is selected:
^ The air inlet door is at full vacuum, closing off outside air and admitting only recirculated air.
^ The panel/defrost door vacuum control motor is at full vacuum and the panel/floor door is at no vacuum, directing airflow to the instrument panel A/C registers. A small amount of airflow from the side window demisters will be present.
^ Blended air temperature is available.
^ The A/C compressor will operate if the outside temperature is above approximately 6°C (43°F).
^ The blower motor is on.

A/C
When A/C is selected:
^ The air inlet door vacuum control motor is at no vacuum, admitting only outside air into the passenger compartment.
^ The panel/defrost door vacuum control motor is at full vacuum and the panel/floor door vacuum control motor is at no vacuum, directing airflow to the instrument panel A/C registers. A small amount of airflow from the side window demisters will be present.
^ Blended air temperature is available.
^ The A/C compressor will operate if the outside temperature is above approximately 6°C (43°F).
^ The blower motor is on.

PANEL
When PANEL is selected:
^ The air inlet door vacuum control motor is at no vacuum, admitting only outside air into the passenger compartment.
^ The panel/defrost door vacuum control motor is at full vacuum and the panel/floor door vacuum control motor is at no vacuum, directing airflow to the instrument panel A/C registers. A small amount of airflow from the side window demisters will be present.
^ The temperature can be adjusted to heat the air, but the air cannot be cooled below the outside air temperature.
^ The A/C compressor will not operate.
^ The blower motor is on.

OFF
When OFF is selected:
^ The air inlet door is at full vacuum, closing off outside air and admitting only recirculated air.
^ The panel/floor door vacuum control motor is at full vacuum and the panel/floor door vacuum control motor is at no vacuum, closing off airflow to the defrost duct, side window demisters, floor duct, and instrument panel A/C registers.
^ The A/C compressor will not operate.
^ The blower motor is off.

PANEL/FLOOR
When PANEL/FLOOR is selected:
^ The air inlet door vacuum control motor is at no vacuum, admitting only outside air into the passenger compartment.
^ The panel/defrost door vacuum control motor is at full vacuum and the panel/floor door vacuum control motor is at partial vacuum, directing airflow to the floor duct and the instrument panel A/C registers. A small amount of airflow from the side window demisters will be present.
^ Blended air temperature is available.
^ The A/C compressor will operate if the outside temperature is above approximately 6°C (43°F).
^ The blower motor is on.

FLOOR
When FLOOR is selected:
^ The air inlet door vacuum control motor is at no vacuum, admitting only outside air into the passenger compartment.
^ The panel/floor door vacuum control motor is at full vacuum and the panel/defrost door vacuum control motor is at no vacuum, directing airflow to the floor duct. A small amount of airflow from the side window demisters will be present.
^ The temperature can be adjusted to heat the air, but air cannot be cooled below the outside air temperature.
^ The A/C compressor will not operate.
^ The blower motor is on.

FLOOR/DEFROST
When FLOOR/DEFROST is selected:
^ The air inlet door vacuum control motor is at no vacuum, admitting only outside air into the passenger compartment.
^ The panel/floor door vacuum control motor is at partial vacuum and the panel/defrost door vacuum control motor is at no vacuum, directing airflow to the floor duct, defrost duct and side window demisters.
^ Temperature can be adjusted to heat or cool the air below the outside temperature.
^ The A/C compressor will operate if the outside temperature is above approximately 6°C (43°F).
^ The blower motor is on.

DEFROST
When DEFROST is selected:
^ The air inlet door vacuum control motor is at no vacuum, admitting only outside air into the passenger compartment.
^ The panel/floor door and the panel/defrost door vacuum control motors are at no vacuum, directing airflow to the defrost duct and side window demisters.
^ Temperature can be adjusted to heat or cool the air below the outside temperature.
^ The A/C compressor will operate if the outside temperature is above approximately 6°C (43°F).
^ The blower motor is on.