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Writing of references for papers of automobile air conditioning and refrigeration department
Air conditioning helps to remove heat from the car. Its principle is to use heat conduction and convection to delete. This is absorbed by the cold evaporator, and then the cold air forcibly passes through it, and the heat in the air is taken away from the air outlet of the blower electric locomotive. This is achieved by pressurizing the refrigerant (134a) with a compressor and refrigerant, and then releasing the internal air conditioner evaporator (134a).

Automotive air conditioning system

Some cars are equipped with automatic climate control system, which can automatically adjust the temperature inside the car. The climate control module is a computer monitor, which can be adjusted according to the temperature set by users. The temperature is controlled by the heater, and the ideal temperature is achieved by combining cold air, air conditioning and hot air. Solid state speed controller for speed control of blower motor. The controller electrically controls the rotating speed of the fan motor to replace the traditional resistance blower motor system.

Typical air conditioning system configuration

Regardless of the temperature inside the car, air conditioners and heating devices can provide comfortable temperature for passengers outside the car. The air inside can be heated, cooled, disinfected or ventilated. The climate control function helps to maintain the ideal temperature. The system is famous for providing refrigeration, heating and climate control air conditioning (heating, ventilation and air conditioning) systems. The basic principles of fluid mechanics, thermodynamics and heat transfer provide a specific cold and hot system. Your climate control settings allow the three to work together to achieve good indoor air quality, thermal comfort and optimal pressure.

When a problem is detected in the system, the fault code of the climate control system can be stored. You can press the code of two or more buttons on the control panel at the same time. To learn how to retrieve the fault code of the vehicle, please refer to the user manual or the maintenance manual. When the code retrieval system is enabled, the fault code will appear in the temperature control head. After maintenance, the system needs to be restarted by disconnecting the battery for 45 seconds and then reconnecting the battery. This test can stop turning the key to the off position at any time.

compressor

Air-conditioning compressor is the refrigerant pump of air-conditioning system. The compressor compresses the refrigerant and circulates it to the condenser and then to the evaporator in the system. The release pressure of the evaporator refrigerant causes the pressure in the cold evaporator to drop, and then the low-pressure refrigerant returns to the compressor to be pressurized again. The air-conditioning compressor is composed of a transmission belt, and the transmission belt is composed of an engine, which can be engaged with an electromagnetic coil and separated from the front of the compressor.

air-conditioning compressor

In order to maintain the compressor drive belt of air conditioning system, its efficiency should be checked regularly. If it is worn or degraded, it should be replaced. Check the system hose for deterioration, bubbles, cracks, hardening or oil residue, and all possible signs of leakage. The correct refrigerant charge should always be kept at a low level. Refrigerant charging is also the cause of poor air conditioning system. When the air conditioning system is located in the core of the evaporator where fungi grow, odor will be generated. The warm and humid environment provides an excellent moisture absorption and growth hotbed for fungi. Aerosol disinfectant can be used to correct this situation. Although the full height setting running on the air conditioning system activates the recirculation function, spray disinfection (ozone) enters the air conditioning system entrance (according to the passenger side line). You should know that whether you spray from the upper air outlet or not, you may not want to do this process when you are in front of any air outlet. The smell can prevent it from repeating all summer, and the program will return regularly.

Basic maintenance

Car charging kit can be found in any auto parts store. It is recommended to buy refrigerant with fluorescent dye, which helps to point out the location of any refrigerant leakage. The kit will indicate that it is safe to add refrigerant. When protecting glasses, you should use a refrigerant tank to pressurize them.

Sometimes mistakes, leaves and dust particles will be left on the condenser fins. Foreign substances and dirt can be washed through the compressed air hose in the garden to help or force them through the radiator and condenser until they are clean and backward.

Note: The air conditioning system is under pressure until the system is completely drained. No maintenance or disassembly is allowed. In order to protect your eyes, you should always repair or repair the air conditioning system you wear at work.