How much pressure should be applied for car air conditioning pressure testing?

[VanDelaney]

Car air conditioning pressure testing should be applied to around 20-30bar, which should be higher than the working pressure of the car air conditioning. Nitrogen pressure is generally used for pressurization and leak detection in car air conditioning systems. Below are the methods for pressurization and leak detection in air conditioning systems: 1. When performing pressurization and leak detection on the car air conditioning system, use soapy water to check for leaks at the air conditioning pipeline interfaces. Whether pressurizing from the high-pressure or low-pressure side, the pressure inside the air conditioning system will eventually balance. 2. Generally, nitrogen is added to the air conditioning system from the high-pressure side. Alternatively, Freon can be added to the system, and a halogen leak detector can be used for leak detection, but this method is not as effective as soapy water leak detection. This is because the pressure of Freon inside the system is relatively low, making some minor leaks difficult to detect.