Location of the main components of the air conditioning system
1 – capacitor; 2 – compressor; 3 – receiver; 4 – evaporator; 5 – valve
Location of the sight glass to determine the refrigerant level in the air conditioning system
The air conditioning system consists of a condenser installed in front of the radiator, an evaporator located near the heater, a compressor installed on the engine, and a dehydrator. The heater fan blows warm air into the car through the evaporator, cooling it to the required temperature.
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Warning! The air conditioning system is under pressure, so do not loosen any connections in the air conditioning system until the pressure is relieved. The source of increased danger when the system is improperly serviced by untrained technicians and when using improper equipment is high pressure and chemical action of the refrigerant.
Attention! The air conditioning system must be serviced only by trained technical personnel, trained in safe working practices using the appropriate equipment, observing the rules for depressurization, familiar with the methods of collecting and storing the automotive refrigerant.
Caution: Avoid contact of refrigerant with skin.
Caution: Wear safety glasses when working near the air conditioning system.
Warning! If refrigerant gets on your skin or eyes, do not rub the affected area. Rinse immediately with cold water for at least 15 minutes. Seek immediate medical attention or medical attention. Self-medication is not allowed.
Attention! The refrigerant in a new cylinder is under pressure. Store at a temperature not exceeding 50°C. Take measures to prevent the cylinder from falling from a height or other situations that may cause damage.
Warning! Work should be carried out in a well-ventilated area. The refrigerant evaporates quickly, reducing oxygen supply and making breathing difficult.
Caution! Gaseous refrigerant is heavier than air and should collect relatively quickly at the bottom, for example under the car.
Warning! When refrigerant burns, toxic gas is formed. Keep refrigerant away from open flames. Do not smoke. Avoid inhaling smoke when using flame leak detectors.
Caution! When welding near the air conditioning system, always remove the refrigerant from it. Electric welding near refrigerant pipes may cause the refrigerant to decompose under the influence of ultraviolet radiation.
Warning! Do not expose air conditioning system parts to high temperatures or open flames. Overheating may cause pressure in the system to increase and cause a fire.
Caution! Cleaning the condenser or evaporator with water vapor is not permitted. Only cold water or compressed air should be used.
Attention! The air conditioning system is equipped with a viewing window designed for a rough assessment of the level of the filled refrigerant (see Fig. Location of the inspection window for determining the refrigerant level in the air conditioning system).
Caution! To check the refrigerant level, start the engine and turn on the air conditioner. When the compressor is running, there should be no bubbles in the sight glass. The presence of bubbles, even for a short period of time, indicates insufficient refrigerant charging. The appearance of signs of foaming on the inside of the sight glass may indicate an almost complete lack of refrigerant. To fully restore the operability of the air conditioning system, the system line must be pumped out, checked for leaks and filled by trained personnel using the appropriate equipment.