To nually turn on the air conditioning in a typical car, you can follow these steps:

1. Start the car and ensure the engine is running.
2. Locate the air conditioning controls on the dashboard. This y be a physical dial or button depending on the car model.
3. Turn the air conditioning system on by pressing the "AC" button or turning the dial to the desired temperature setting.
4. Adjust the fan speed to your preference using the fan speed control.
5. Direct the airflow by adjusting the air vents to point towards you or where you want the cool air to go.

If you are referring to a different type of air conditioning system, please provide more details for a more specific answer.