What is the normal high pressure for a car air conditioning system?

[StRichard]

Under normal operating conditions of the air conditioning system, the low pressure typically ranges between 1.0—2.5 bar, while the high pressure ranges between 15—18 bar. The car air conditioning refrigeration system consists of components such as the compressor, condenser, receiver-drier, expansion valve, evaporator, and blower. These parts are connected into a sealed system using copper pipes (or aluminum pipes) and high-pressure rubber hoses. When the refrigeration system is in operation, the refrigerant circulates in different states within this sealed system, with each cycle comprising four basic processes. Below is an introduction to air conditioning maintenance: 1. Comprehensive inspection of the air conditioning system: Before using the air conditioning for the first time in summer, it is advisable to inspect the system, such as checking the refrigerant and whether the air filter is too dirty via the receiver-drier, and checking for any foreign objects in the radiator. 2. Pay attention to air conditioning cleaning: The air filter should be replaced regularly to prevent moldy odors from developing in the air conditioning system. Additionally, the condenser should be cleaned periodically, and for a thorough cleaning, the radiator should be removed.