How to correctly read an automotive air conditioning pressure gauge?

[LaCecilia]

There are numbers on the pressure gauge, which can be read directly. The specific operation method is as follows: Start the engine, adjust the engine speed to about 1250rpm, then turn on the air conditioning, set the air conditioning to the coldest state, adjust the air volume to the maximum, run for about 5 to 10 minutes to normalize the engine temperature, and then perform the inspection. More relevant information is as follows: 1. Introduction: Automotive air conditioning refers to equipment that artificially regulates and controls parameters such as temperature, humidity, and air flow rate within the environment of a building or structure. 2. Air conditioning structure: The structure of air conditioning includes components such as the compressor, condenser, evaporator, four-way valve, one-way valve, and capillary tube assembly.