1. Nozzles for blowing windows and front doors.
2. Upper slots of the instrument panel.
3. Upper air nozzles.
4. Regulator for additional air supply through the upper nozzles.
5. Side air nozzles.
6. Central blowing nozzles.
7. Lower airflow nozzles.
The ventilation and heating of the passenger compartment are regulated depending on the outside air temperature by mixing cold and heated air and are maintained at an almost constant level at any vehicle speed. Figure 24 shows the controls for the ventilation and heating system of the vehicle interior.
Heating switches
Left rotary switch:
Temperature, fig. 25.
- Right turn = warmer
- Turn left = cooler
Middle rotary switch:
Air distribution, fig. 26.
- air flow is supplied through the nozzles to the upper part of the cabin, prevents icing of the windows;
- the air flow is supplied through the lower nozzles to the area of the legs of the driver and passengers;
- the air stream moves through lateral and central nozzles.
Right rotary switch:
blowing (fan), rice. 27.
Four speeds:
- 0 - disabled
- 4 - maximum air flow.
The blower fan allows you to increase the volume of incoming air, which provides additional comfort when driving and accelerated de-icing and heating of the passenger compartment. Therefore, it is necessary to turn on the airflow while driving.
Figure 28 shows the flap control lever:
- in the extreme left position, outside air enters the passenger compartment;
- in the middle position of the lever, outside air and air are mixed,
- circulating inside the cabin;
- in the extreme right position, the recirculation mode is activated.
When the recirculation mode is activated, the outside air supply is blocked. This mode can be useful, for example, when driving through a tunnel or when driving in a traffic jam to prevent air saturated with exhaust gases from entering the passenger compartment. Prolonged circulation of air inside the vehicle interior can cause the windows to fog up.
Heater air intake, fig. 29 is located under the sound deadening padding in the engine compartment under the wiper arm shafts. Air intake openings must be free for air to enter, if necessary, remove leaves, dirt or snow.
The air filter is installed in the heater air intake box, which cleans the air entering the passenger compartment from dust, soot, plant pollen, etc.
Air nozzles
Central air nozzles, fig. thirty.
The air supply is regulated by the levers 1 of the guide vanes of the central nozzles by changing the position of the dampers up or down, and the air supply intensity regulator 2 opens or closes the central airflow nozzles completely. Depending on the position of the temperature switch, a comfortable blowing of the upper space of the passenger compartment with unheated or warm air is ensured.
To increase the air flow, turn on the blower and set the middle rotary switch to position.
Side air nozzles, fig. 31.
Through the nozzles, normal or warm air enters the cabin. The air supply is regulated by the levers 1 of the guide vanes of the side nozzles by changing the position of the dampers up or down, and the air supply intensity regulator 2 opens or closes the side air nozzles completely.
The direction of the air flow can be adjusted so that a warm air cushion can be created in the area of the doors in cold weather.
To increase the air flow, turn on the blower and set the middle rotary switch to position.
Nozzles for blowing windows and front doors, fig. 32.
Set the damper control lever to the leftmost position and the middle rotary switch to the position: cold or warm air will be directed towards the windshield and side windows (mainly in the installation areas of exterior mirrors).
Upper air nozzles, fig. 33.
Set the throttle control lever to the leftmost position and the middle rotary switch to:
- cold or warm air will be directed towards the windshield;
- middle rotary switch in position;
- when the damper is open, the additional air supply regulator provides additional air supply.
Lower air nozzles, fig. 34.
Unheated or warm air is supplied to the lower part of the cabin (in the footwells of the driver and passengers). To increase the air flow, switch the blower fan to a higher level and set the air distributor to the middle rotary switch.
Cabin ventilation, fig. 35.
In the extreme left position of the damper control lever, outside air enters the vehicle interior:
- through the upper air vents and front door glass air vents, if the middle rotary switch is turned to the position;
- through side and central nozzles,
- if the middle rotary switch is moved to the position.
The air supply intensity regulators through the side and central nozzles regulate the air supply by changing the position of the dampers until they are completely closed. In this position, with the damper open, the additional air supply through the upper nozzles provides additional air supply.
- through the lower nozzles into the footwell of the driver and passengers, if the middle rotary switch is in position. Turning the side and center nozzle guide vane levers changes the direction of the airflow.
To increase the air supply to the passenger compartment, set the right rotary switch to one of the four heater fan modes.