Contents: Automatic Temperature Adjustment…↡ Air conditioner ↡ Compressor ↡ Condenser ↡ Throttle ↡ Evaporator ↡ Climate control system (KLA) ↡
The air conditioner provides a temperature in the car below the ambient temperature and reduces the humidity in the car. It operates in Reheat mode. This means that the incoming air is first cooled by the air conditioner and then brought to the desired temperature. Thanks to this combined function, fogged windows in the car dry quickly.
Automatic Temperature Adjustment System (TAU)
The automatic temperature control system is an advanced automatic heating system with an additional cooling function. The operating elements and air duct system are similar to the basic version. When you press the additional "EC" button, the air conditioner compressor switches off and the red LED lights up.
Air conditioner
The air conditioner consists of a refrigerant compressor, a condenser, a throttle, an evaporator, a drain tank and high-pressure pipes. The refrigerant circulates in the system, which, depending on the 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 a gaseous state is heated.
Condenser
Here the flowing air absorbs heat, the refrigerant cools, condenses and turns into a liquid state.
Throttle
The coolant then flows through a throttle valve, which releases pressure. The coolant evaporates and cools down again.
Evaporator
In this device, the refrigerant absorbs the heat of the incoming air, and the air is cooled. The evaporator is located in the heater body in front of the heating system radiator. The cooled air is directed into the car's interior. Under the influence of the heat absorbed in the evaporator, the refrigerant again passes into a gaseous state and at low pressure is fed back to the compressor. The circulation circle is closed.
In this mode, the system consumes less fuel, automatic fan speed control and damper control are maintained. The interior temperature cannot be lower than the ambient temperature, and there is no air humidification.
Climate control system (KLA)
The advantage of climate control compared to air conditioning is the ability to turn on an additional "Auto" mode. Moreover, there is the possibility of separate adjustment for the driver and passenger. When the mode is activated, the volume of supplied air and its distribution are regulated completely automatically. If the mode is not activated, you can regulate manually, either separately, as with conventional heating and ventilation, or for both sides simultaneously.
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. Thanks to it, odors are filtered.
The carbon monoxide (CO) sensor detects high levels 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, in strong sunlight and outside temperatures above +19°C, the preset interior temperature is lowered.