What is the primary purpose of a system pressure gauge in hydronic systems?

The primary purpose of a system pressure gauge in hydronic systems is to monitor the pressure within the system. Pressure gauges provide crucial information about the operational state of the system, allowing for the detection of any pressure anomalies that could indicate issues such as leaks, blockages, or the need for system maintenance.

In a hydronic system, maintaining proper pressure is essential for efficient water circulation, effective heat transfer, and overall system performance. The pressure gauge helps ensure that the system stays within the designed operating parameters, thereby preventing potential damage and inefficiencies.

Other options such as controlling temperature, regulating air flow, or measuring water temperature, while important in their own right, do not pertain to the specific function of a pressure gauge. These elements are managed through other components and controls within the hydronic system, but the pressure gauge is specifically focused on the pressure monitoring aspect.