What is the main function of a pressure gauge in HVAC systems?

The main function of a pressure gauge in HVAC systems is to measure the pressure of gases or fluids within the system. Pressure gauges are crucial for monitoring the operational efficiency and performance of HVAC equipment, as they provide essential information regarding the refrigerant pressure in the system. This data helps technicians diagnose issues, ensure the system is functioning within its designed parameters, and maintain optimal performance.

By accurately measuring the pressure, technicians can identify potential problems such as undercharging or overcharging of refrigerant, which can significantly affect system performance and efficiency. Regular monitoring of pressure allows for early detection of leaks or blockages, ultimately contributing to better maintenance practices and system longevity.