Is It Okay to Only Evacuate the Low Pressure Side of a Car's Air Conditioning System?

[DiAurora]

Evacuating only the low pressure side of the air conditioning system is not sufficient. Before adding refrigerant to the air conditioning system, it is necessary to evacuate all pipelines within the system to create a vacuum. There is no fixed cycle for adding refrigerant to a car's air conditioning system; it depends on the specific usage conditions and cooling performance. If the system is well-maintained, refrigerant typically does not need to be added for three to five years. Below is some relevant information: Purpose of Evacuation: The air contains a large amount of nitrogen, oxygen, carbon dioxide, and other gases, which cannot dissolve into the refrigerant and are collectively referred to as non-condensable gases. Additionally, the moisture in the air cannot mix with the refrigerant. The presence of moisture and non-condensable gases affects the performance of the air conditioning system, so the purpose of evacuation is to remove these non-condensable gases and moisture from the system. Air Conditioning Maintenance: Avoid smoking in the car with the air conditioning on. Smoking in the car can cause smoke to linger, irritating the eyes and respiratory system, which is harmful to health. If smoking is necessary, adjust the air conditioning ventilation control to the "exhaust" position to expel the smoke from the car.