Fig. 9. Controls for ventilation and heating of the passenger compartment:
1 - side nozzles; 2 - outside air flow regulator; 3 - lever for changing the direction of the air flow; 4 - central nozzles; 5 - heater valve control lever; 6 - air intake hatch control lever; 7 - distribution lever; 8 - Rear window heating switch; 9 - heater cover lever; 10 - three-position switch for the heater electric fan.
Interior ventilation
Outside air can enter the vehicle interior:
- with the door windows down;
- through the upper nozzles on the instrument panel, if you move the distribution lever 7 (Fig. 9) and the air intake hatch control lever 6 to the right;
- through the side nozzles 1 on the instrument panel, if you move lever 6 to the right and lever 7 to the left;
- through the holes in the heater casing, if you open the heater cover with lever 9 and move lever 6 to the right;
- through the central nozzles 4 directly from the air intake box when the car is moving, if the nozzle flaps are opened with the regulators 2 (summer blowing).
By moving the lever 3 in the horizontal and vertical directions, the direction of the air flow from the nozzle changes.
In the middle position of lever 7 and in the right extreme position of lever 6, air will flow through both the upper and side nozzles.
If the vehicle is moving at low speed, the amount of incoming air can be increased by turning on the heater electric fan using switch 10.
Protection against fogging of the windshield, front door windows and rear window
To prevent the windshield and front door windows from fogging up, simply direct cold air at them, for which:
- close the heater cover with lever 9;
- move lever 6 to the right and set lever 7 to the middle position;
- set the side vent guide vanes so that the air flow is directed towards the front door windows.
If you need to slightly warm up the incoming air, move the heater control lever 5 partially to the right. If necessary, turn on the heater electric fan.
To prevent the rear window from fogging up, turn on its electric heating using switch 8.
Interior heating
To heat the car interior and protect the windshield, front door windows, and rear window from fogging and freezing:
- move levers 5 and 6 to the right;
- set lever 7 to the middle position;
- open the heater cover with lever 9;
- turn on the rear window heating;
- turn on the heater electric fan if necessary;
- set the side vent guide vanes so that the air flow is directed towards the front door windows.
Warm air will be directed both to the driver's and passengers' footwells and to the windshield and front door windows. To heat only the windshield more quickly, close the heater cover and move lever 7 to the right.