The temperature in the passenger compartment can be selected using the rotary control for the right and left side of the passenger compartment. The electronic control unit in the control unit of the heating system regulates the opening time of the heater valve depending on the temperature in the passenger compartment. The interior temperature sensor is located behind the heater housing. Thanks to the electronic control, the temperature is kept almost constant regardless of vehicle speed or outside temperature.
To increase the power of the heater, a fan is used, which is infinitely adjustable.
Car ventilation scheme
1 — «raw» outdoor air;
2 - heated outside air;
3 - outdoor air with controlled temperature.