HARRIER BOOK 1

FATC

KNOBS DESCRIPTION:

A FATC control panel manages the climate control

system, it is the driver's interface to the system. The

FATC receives driver's input signal and various input

signals from sensors and controls the actuators to

maintain driver's desired settings.

1. REAR WINDOW DEMISTER – HRW (IF

APPLICABLE)

This button turns the rear window demister ON or

OFF. The system automatically deactivates. On

pressing this button, the LED is illuminated indicating

defogging of the rear window.

Rear demister/defogger will work only when Engine is

ON.

2. MAX DEFROST BUTTON/FRONT DEFOGGER

a. This button directs the main airflow towards

windscreen for faster defrosting (It also overrides

any mode selection you may have made.)

b. When you turn off the button, the system returns

to its former settings.

On pressing this button the

LED is illuminated indicating air distribution to

max defrost mode is ON.

CAUTIONS

For your safety make sure you have a clear view

through all the windows before driving

3. AIR DISTRIBUTION (MODE) BUTTON

In AUTO mode, the FATC system will regulate the

mode automatically. However, user override is

possible with the use of MODE button to select the

desired airflow. Each time you press the MODE

button, the HMI display on the infotainment unit shows

the mode selected.

The Mode control shall happen either manually or

through an automatic climate control algorithm. The

simple flow diagram below shall describe the

determination of the desired mode position.

Mode control during Auto operation

The Mode control shall switch to Auto operation after

the user presses the Auto button. The climate control

algorithm shall determine the desired mode position

during Auto operation. The Auto operation shall

select among Chest, Chest-Leg and Leg positions

during the Auto operation. Since the system is not

equipped with sensors to determine the windshield

fogging criteria, the Defog and Defrost shall be

selectable manually by the user.

Mode control during Manual operation

The Mode control shall switch to the Manual mode

immediately after the user presses the mode button.

In the Manual mode, the driver shall select the mode

by pressing the mode pushbutton on the control

head. The mode shall switch in a cyclic sequence as

shown above for each press of the button. The

display shall be updated as shown above

corresponding to the current selected mode.