Description And Operation: Description

Courtesy of CHRYSLER GROUP, LLC

The system maintains comfort inside the passenger compartment and compensates for possible variations in outside weather conditions. The automatically controlled parameters and functions are:

Air temperature at the driver/front passenger side vents
Air distribution at the driver/front passenger side vents
Blower motor speed (continuous variation of the air flow)
Compressor engagement (for cooling/dehumidifying the air)
Air recirculation

All these functions can also be adjusted manually by operating the system and selecting one or more functions and modifying their parameters. Manual selections always have higher priority than automatic settings and are stored until the AUTO button is pressed, except for cases in which the system intervenes for safety reasons.

The amount of air introduced into the passenger compartment is not affected by vehicle speed; it is electronically controlled by a blower motor. The temperature of the air sent is always automatically controlled according to the temperature set on the display (except for when the system is off or in certain conditions when the compressor is not running). The system allows the following to be set or adjusted manually:

Driver/passenger side air temperature
Blower motor speed (continuous variation)
Air distribution
Compressor engagement
Rapid defrosting/demisting function
Air recirculation
Heated rear window
System deactivation

Passenger compartment climate control change requests are sent from the climate control panel which is connected directly via the Local Interface Network (LIN) serial bus to the Heating, Ventilation and Air Conditioning (HVAC) module.

The HVAC consists of:

Blower motor
Power Blower Motor Module
Eight actuators with potentiometer for return signal
NOTE:
One for opening/closing air internal recirculation; two for air temperature blending (one per side); one for rear passenger air flow adjustment; two for front air flow mixing; two for upper front air flow mixing.
Four Negative Temperature Coefficient (NTC) outlet air temperature sensors to measure the outlet air temperature (two for temperature of the low position air distribution and two for the high position air distribution)
A sun radiation sensor
A Negative Temperature Coefficient (NTC) evaporator temperature sensor
One motorized in-car temperature sensor for the internal passenger compartment temperature
One Air Quality Sensor (AQS) optional
One humidity sensor