Note. The air conditioning system is installed on some cars.
The complex provides low-inertia regulation of air temperature, practically independent of the vehicle speed. The amount of air entering the passenger compartment is mainly determined by the mode of operation of the fan, so it must be turned on even while driving at high speed.
Outside air can enter the passenger compartment through the door windows with the windows down and the air blower located in front of the windshield. The air from the blower can enter the passenger compartment through the windshield blower nozzles, side and center nozzles, and also through the lower nozzles of the heater housing.
The quantity, temperature, direction and intensity of air flows are regulated by switches installed in the control unit for heating, ventilation and air conditioning systems.
To change the temperature of the air entering the passenger compartment, turn the temperature control knob. The blue part of the scale corresponds to the supply of the most cooled air, the red part corresponds to the most heated air. With the handle in the middle position, air is supplied to the passenger compartment at ambient temperature.
To increase the intensity of the air supply to the passenger compartment while driving and ensure the supply of air to a stationary vehicle, use the switch handle to turn on one of the four modes of operation of the air blower fan.
To change the direction of the air supply, select one of the four options with the air distribution knob (clockwise):
- air supply to the upper part of the cabin (through the side and center nozzles of the instrument panel);
- air supply to the upper and lower parts of the cabin (through the side and central nozzles of the instrument panel, as well as through the lower nozzles of the heater housing);
- air supply to the lower part of the cabin (through the lower nozzles of the heater housing);
- windshield air supply (through the windshield blower nozzles).
To cool the air entering the car interior, press the air conditioner on button (if it is installed on the car) - the green control lamp will light up in it. To turn off the air conditioner, press the button again.
Note. The air conditioner will not turn on if the blower fan mode switch is set to «0» (fan off) or the ambient temperature is below 0°C. This is not a sign of a malfunction, but is provided for by the design.
Attention! Turning on the air conditioner while the engine is running in difficult conditions (long climbs, heavy city traffic, etc.) may cause the engine to overheat. Watch the readings of the coolant temperature gauge: if the temperature exceeds the permissible value, turn off the air conditioner. During long trips in city traffic, the efficiency of the air conditioner may be reduced due to the intense thermal conditions of the engine. This is not a malfunction, the air conditioner will work efficiently under normal driving conditions.
To turn on the recirculation mode, press the recirculation mode switch (the control lamp in the switch will light up). When the recirculation mode is on, outside air does not enter the passenger compartment, and the air blower fan circulates the air inside the passenger compartment. This mode is used to quickly warm up the cabin in the cold season, as well as with increased dust and gas contamination of the surrounding air.
Attention! It is not recommended to turn on the recirculation mode for a long time while the car is moving, as this usually leads to fogging of the windows.
Depending on the various combinations of switching on the switches of the control unit, the heating and ventilation system operates in the following basic modes:
– maximum cooling mode. Used in hot weather and after a long stay in the sun to quickly cool the air in the cabin. In this case, before turning on the air conditioner, it is recommended to briefly open the windows to remove the heated air from the passenger compartment. The air conditioning and air recirculation switches must be turned on;
– normal cooling mode. Used when traveling around the city and outside the city in moderately warm weather. The air conditioner switch must be on, the recirculation switch must be off;
– ventilation mode. Used in the off-season, which is characterized by low temperatures;
– maximum heating mode. It is used at very low ambient temperatures and to quickly warm up the air in the cabin after a long parking. The air conditioner switch must be off, the recirculation switch must be on;
– normal heating mode. It is used in the cold season to maintain the optimum air temperature in the cabin after it has been intensively warmed up in the maximum heating mode. The air conditioner and air recirculation switches must be off;
– mode of blowing the windshield and windows of the front doors. It is used to quickly eliminate fogging of glasses at high humidity. The air conditioner switch can be in any position depending on the ambient temperature, and the recirculation switch must be off.
Note. In order to prevent the windows from misting up in rainy weather, turn on the blowing mode when the heater is off, since the difference in the temperature of the glass surface and the air supplied can cause moisture condensation.
Note. For more efficient operation of ventilation and heating at a vehicle speed of less than 50 km / h and when driving through especially dusty sections of roads with closed windows (to create excess air pressure in the cabin, preventing dust suction) We recommend turning on the heater fan with the switch at low or maximum speed.
Note. To quickly eliminate fogging of the rear window and free it from ice and snow, turn on the glass heating switch.
Note. If you do not use the air conditioner for a long time, it is necessary to turn it on briefly once a week with the engine running to restore the lubrication layer on the compressor parts and seals.
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