What is the non-vacuum exhaust pipe method for car air conditioning?
1 Answers
Car air conditioning non-vacuum exhaust pipe method is a highly unusual operation procedure that involves immediately discharging the residual refrigerant in the car air conditioning system, then promptly filling it with refrigerant using a gauge set, and utilizing the pressure from the refrigerant tank to inject the refrigerant into the air conditioning system while simultaneously forcing out the air in the system. This method may cause air to mix into the air conditioning system, affecting the cooling efficiency and potentially damaging the compressor's lifespan. Why use the non-vacuum exhaust pipe method for car air conditioning: The air contains a large amount of nitrogen, oxygen, carbon dioxide, and other gases, which cannot dissolve into the refrigerant and are generally referred to as non-condensable gases. Additionally, moisture in the air cannot mix with the refrigerant. The presence of moisture and non-condensable gases affects the operational efficiency of the air conditioning system, so the purpose of using the non-vacuum exhaust pipe method is to remove these non-condensable gases and moisture from the air conditioning system. Recommendations for using car air conditioning: Do not randomly adjust the direction of the air conditioning vents. In winter, the air conditioning should be started periodically. Each use of the air conditioning should not be too long. In summer, ventilate and cool the car before driving, then switch to internal circulation. Avoid using the internal circulation mode for extended periods. Develop the good habit of turning off the air conditioning before shutting off the engine when parking.
