Do not forget the safety of the mixer air conditioning maintenance The current use of air conditioning systems on the vehicle is generally a single cold open type, the use of refrigerants Freon (R12 or Freon alternative 134a). In use, the refrigerant leaks from the joints and seals, and leakage of the refrigerant will result in poor cooling or no refrigeration. Pay attention to personal safety when servicing air conditioners. Freon (R12) has a large latent heat of evaporation. When it comes into contact with the skin and eyes, it absorbs a large amount of heat from the body and evaporates. As a result, it freezes and injure the human body. Therefore, attention should be paid when handling it. Protective glasses should be worn to protect the eyes. Once the liquid Freon enters the eyes, do not use your hands to lick it. Rinse immediately with plenty of clean cold water (in order to dilute the Freon concentration) and immediately go to the hospital for treatment. When a large amount of liquid Freon comes into contact with the skin, immediately flush it with plenty of cold water, apply it on the skin with clean Vaseline, and go to the hospital for treatment. Do not rub it with your hands. Because Freon is colorless and odorless, it is not easy to be noticed. Emissions into the air will reduce the concentration of oxygen in the air and can suffocate people. Because Freon gas is heavier than air, it usually settles on the bottom of the air. Therefore, when repairing air conditioners, repair personnel should not stand in the trenches, pits, etc., to discharge refrigerant. The work of releasing the refrigerant should be carried out in a well-ventilated place.
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