How to Use an Air Conditioning Pressure Gauge?

1 Answers
LePreston
07/29/25 9:13am
The method for using an air conditioning pressure gauge is as follows: 1. Connect the high and low-pressure hoses to the air conditioning pipeline; 2. Push the push rod to open the charging valve core; 3. Connect the system and the pressure gauge, at which point the system pressure values can be read on the high and low-pressure gauges. When the car air conditioning is running, the normal high-pressure value ranges from 1.3 to 1.7 MPa, and the low-pressure value ranges from 0.1 to 0.25 MPa. The car air conditioning pressure gauge is used to display both pressure and vacuum. The vacuum reading absolute pressure range is 0 to 101.3 kPa, and the pressure scale starts from a gauge pressure of 0 MPa, with a range of up to 1.5 MPa. The high-pressure side gauge measures a pressure range starting from a gauge pressure of 0 MPa, with a range of up to 3 MPa.
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