What does a circulator do in a hydronic system?

In a hydronic system, the primary function of a circulator is to pump water through the system. This is crucial because hydronic heating and cooling systems rely on the circulation of hot or chilled water to transfer thermal energy from one location to another. By continuously moving the water through the pipes, the circulator ensures efficient heat distribution throughout the space being conditioned.

The design of the circulator is integral to maintaining proper flow rates and pressure within the system, which helps achieve optimal performance. Without a functioning circulator, the system would be unable to effectively heat or cool the designated area, leading to inefficiencies and inadequate thermal comfort.

While other functions such as measuring temperature, controlling pressure, or preventing leaks are important in the overall operation and management of a hydronic system, they are not the primary responsibility of the circulator. These tasks are typically managed by other components within the system, making the circulator's role specifically focused on the movement of water.