HEXA

HVAC

23.10 FULLY AUTOMATIC TEMPERATURE

CONTROL (

FATC

)

A. INTRODUCTION

FATC (

Fully Automatic Temperature Control

) system

allows the user to configure the desired settings by

automatically adjusting the desired air delivery posi-

tion, set temperature, blower speed, air source and

the desired A/C compressor status. With the Auto

button, the user can select all the above settings to

be controlled automatically by the climate control

algorithm.

The climate control system is managed by a fully

automatic control panel which is capable for control-

ling the temperature, FAN speed, air-distribution

settings in the passenger compartment.

The Climate control algorithm is designed to main-

tain the temperature selected by the user during the

fully automatic operation. The user can also select to

operate the AC either in a normal or economy mode.

The system works to stabilize the passenger com-

partment comfort and compensates for any

variations in the outside temperature and sun load by

taking the inputs from Outside Air Temperature sen-

sor and Solar Sensor

Manual intervention always takes priority over auto-

matic operations until the user switches back to the

automatic operation.

Each time when ignition is switched on, the system

restores the previous user setting when the ignition

was turned off.

OPERATION

User can select the AUTO mode by pressing the

AUTO button and set the desired temperature using

the rotary knob, the system will regulate until the set

temperature is reached as quickly as possible in the

passenger compartment.

In ECON A.C. operation, the system automatically

cuts off compressor at a higher temperature than

normal A.C. mode. The operation can be used dur-

ing mild weather conditions for better fuel efficiency.

Cabin comfort level may be compromised during this

operation.

The system remains in fully automatic condition even

if the ECON or Rear Demist is turned ON. The FATC

can maintain the cabin temperature between 16

C to

LOCATION:

It is fitted on center finisher below the 2-DIN radio

unit.