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Hydrolevel: HydroZone


HydroZone is a single-zone switching relay for controlling circulator pumps through 24V thermostats in heating systems. It includes an LED fault indicator for unsatisfied zone calls, automatic short cycle protection and a built-in transformer with a C terminal to support smart thermostats. Features such as test modes, standard wiring terminals, multiple relay outputs and a large wiring compartment support system diagnostics, compatibility and simplified installation.





Contact FacilitiesNet Editorial Staff »   posted on: 4/16/2026


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Hydrolevel: HydroZone