How to Use a Pressure Gauge to Measure Air Conditioning Pressure?

[Jasmine]

Using a pressure gauge to measure air conditioning pressure is done as follows: 1. Turn on the pressure gauge switch and connect the hoses to the service valve connectors on the outdoor unit of the air conditioner. 2. After connection, you will see two circular numbers on the dial, marked in red and blue, along with a needle pointer. 3. The red indicates the high-pressure reading, while the blue indicates the low-pressure reading. Generally, the numbers referred to are the low-pressure readings. 4. For any air conditioner using Freon 22 operating in cooling mode, the pressure should be between 0.45-0.6MPa when the ambient temperature is between 25°C to 45°C. 5. The scale on the gauge represents pressure, and through the pressure display, you can determine the compressor's discharge pressure and intake pressure.