What should ground-source heat pump ground-loop system piping indicate where it enters a building?

The identification of ground-source heat pump ground-loop system piping at the point it enters a building is important for both safety and maintenance. Proper labeling ensures that anyone working on the system can quickly and accurately recognize its purpose, which is critical for troubleshooting, service, and potential emergency situations.

Labeling the piping as a "Ground-Source Heat Pump Loop System" provides clear, unambiguous information about the system's function and type. This accuracy helps distinguish it from other systems and prevents confusion with other types of piping, such as those used for hot water or traditional heating solutions.

While other options may describe components that could be associated with geothermal or heating systems, they do not provide the specific context applicable to the ground-source heat pump application. Using the correct terminology fosters better understanding among technicians and reduces the likelihood of mistakes during maintenance or repairs.