How do I switch on the aircon in the Scenic?

The Scenic comes with a control panel for the aircon.

1. The aircon control panel is located at the bottom of the touchscreen, as seen in the picture below.
2. Tap the fan sign to turn the aircon on. You can also use it to select the fan speed. 
3. The 2 knobs below the screen are to adjust the desired temperatures for the aircon. The left knob is for the passenger side and the right for the driver's side. The temperature set for the air conditioners on each side can be viewed on the screen.