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How to Use an Air Conditioning Pressure Gauge?

1 Answers

StBella

07/29/25 4:31pm

Usage of the air conditioning pressure gauge is as follows: 1. Gauge classification: Generally, an air conditioning pressure gauge has 2 dials, the red one is the high-pressure gauge, and the blue one is the low-pressure gauge (with different ranges and accuracies). 2. Usage method: When connecting the high and low-pressure hoses to the air conditioning pipeline (charging valve) via quick-connect fittings, tighten the end cap of the quick-connect fitting to allow the push rod to open the charging valve core, connecting the system and the pressure gauge. At this point, the system pressure values can be read on the high and low-pressure gauges. 3. Low-pressure gauge: The normal pressure range in the air conditioning system is -0.1MPa to 1.5MPa. 4. High-pressure gauge: The normal pressure range in the air conditioning system is -0.1MPa to 4.0MPa.

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