Operation and maintenance of automotive air conditioners

Automobile Air Conditioning for your device and the principle of operation is similar to an ordinary household refrigerator. This is the same sealed closed system filled with a special coolant, which is the working medium air conditioner and oil, which provides lubrication of rubbing parts of the compressor. Conditioner consists of an evaporator (condenser), where the refrigerant evaporates into a gas and cools the evaporator (actually here we get a cold), a condenser, in which the gas condenses and turns back into a liquid, a compressor, which pumps the working fluid, ie refrigerant in the system, as well as receiver-dryer, which are absorbed by water vapor present in the system. Condenser electric fan is blown. Also air conditioners have the sensor that controls the pressure control valve (TEV). This sensor prevents the air conditioner if the system is low pressure, such as leakage of the working body, and by the valve regulated flow of refrigerant in the evaporator. All the work the air conditioner controls the electronic control unit. Combine all of these units through pipelines. To ensure reliable operation of the compressor requires timely maintenance. The efficiency of the air conditioning system may deteriorate due to leakage of refrigerant due to depressurization of the system or its natural leakage, clogging the condenser and evaporator or filter ventilation compartment. Most often occurs due to depressurization of the effects of vibration, because of which there are cracks or corrosion due to the destruction of parts of the system conditioning. To control the presence of Freon in the air conditioner on most automotive systems provided with an inspection window. When properly charged and adjusted the air conditioner in the sight glass can be seen a continuous stream of pure Freon. Most of the air conditioner malfunctions can be eliminated only in specialized stations, equipped with professional equipment, especially when it comes to depressurization of the system. When refueling system to precisely control the amount of refrigerant charge and type, otherwise quite possible failure of the compressor. By the way freon, which is charged with domestic refrigerators for fueling automotive air conditioner is not suitable. Wet air conditioning, from which there was a leak of Freon delayed. In nezapravlennoy system are easily damaged dryer, and then other elements, which then must be replaced. When transferring a system from R12 refrigerant R134a (CFC that is safe for the ozone layer, Freon R12 fueled air conditioners in cars until 1992 -93 years.) Need to wash it, the replacement of some parts, oil changes, adding new devices, that is, in fact need to fully reconstruct the system. Generally, filling the air conditioner rather subtle process, requiring compliance with certain rules and contains many nuances, so it should be trusted only to professionals. Be careful when self-service air conditioners, remember that the refrigerant is under high pressure, so disconnect the connection in the system is dangerous - you can hurt to get out with gas. Themselves to restore the air conditioning is possible only if this is due to blockage of the condenser and the hundreds of poor air access to it. To do this, rinse the condenser with water, possibly for better access to it will take some of the tiles. Now a few tips on operating air conditioners. At least once a month include air conditioning, even in cold weather. This must be done so as not to crack seal, and there was no leakage of freon. Before turning on the air conditioner ventilate the room, so it cooled faster. First, turn on air conditioning at full capacity, and only then Slow it up to the minimum required. Do not direct a jet of cold air on a hot windshield of the car - it can crack from a sharp drop in temperature. In the duct air-conditioning system can condense the moisture collected dust, which will create favorable conditions for the development there of pathogenic microbes, mold and fungi. To avoid this, about 5 minutes before the end of the trip air conditioner off and turn the oven - hot-air purge and dry the air ducts