Automatic temperature setting system (TAU)
The automatic temperature setting system is an advanced automatic heating system with an additional cooling function. The working elements and the air duct system are similar to the basic version. By pressing additional button «EC» The A/C compressor turns off and the red LED lights up.
Air conditioner
The air conditioner consists of a refrigerant compressor, condenser, throttle, evaporator, drain tank and high pressure piping. A refrigerant circulates in the system, which, depending on temperature and pressure, is in a liquid or gaseous state..
Compressor
It is driven by a belt drive from the engine and increases the pressure in the circulation system to approximately 20 bar. As a result, the refrigerant in the gaseous state is heated.
Condenser
Here, the flowing air takes on heat, the refrigerant cools, condenses and turns into a liquid state.
Throttle
The refrigerant then flows through the throttle, which releases pressure. The refrigerant evaporates and cools down again.
Evaporator
In this device, the refrigerant receives the heat of the supply air, and the air is cooled. The evaporator is located in the heater housing in front of the heating system radiator. The cooled air is directed to the vehicle interior. Under the action of the heat received in the evaporator, the refrigerant again passes into a gaseous state and is fed back to the compressor at low pressure. The circle of circulation is closed.
In this mode, the system consumes less fuel, automatic fan speed control and damper control are retained. The temperature in the cabin cannot be lower than the ambient temperature, air humidification does not occur.
Climate control system (KLA)
The advantage of climate control over air conditioning is the ability to turn on an additional mode «Auto». Moreover, there is the possibility of separate adjustment for the driver and passenger. When the mode is activated, the volume of air supplied and its distribution are regulated fully automatically. If the mode is not activated, it can be adjusted manually, either separately, as with conventional heating and ventilation, or for both sides at the same time.
The climate control system also includes an activated carbon filter to absorb odors. It can be installed in other configurations, in addition to the air purification filter. It filters out odors.
carbon monoxide sensor (SO) recognizes the high content of harmful impurities in the ambient air, and the system switches to recirculation mode. The display shows «Smog».
The system also takes into account data from the sunlight sensor, which is located in the center of the lower edge of the windshield. For example, when there is strong sunlight and the outside temperature is above +19°C, the preset interior temperature will be lowered.