Description
Optimize your multi-zone hydronic heating or radiant floor system with the Caleffi ZVR104 4-Zone Valve Control Relay, a robust and reliable solution for managing up to four independent heating zones. Designed for both residential and light commercial applications, this advanced zone valve controller delivers precision temperature control, enhanced efficiency, and simplified installation — making it a top choice for HVAC professionals and installers.
Key Features
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Efficient 4-Zone Control: Seamlessly manages up to four independent heating zones by interfacing with low-voltage thermostats or controls for customized comfort in every area of your home or building.
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Pump & Boiler Activation: Automatically engages the system circulator and secondary pumps whenever any zone calls for heat, ensuring balanced heat distribution throughout the system.
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Priority Zone Handling: Built-in priority feature allows dedicated control of domestic hot water (DHW) or other high-priority zones, with a selectable 1-hour timeout.
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LED Status Indicators: Front LED lights provide instant visual feedback on system operation and simplify troubleshooting for installers and technicians.
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Built-In Versatility: Compatible with 2-, 3-, and 4-wire thermostats or controllers, and includes dry contacts for boiler or auxiliary pump interfacing.
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Durable & Installer-Friendly: Features large screw terminals, ample wiring space, automatic resettable fuse, and expandable transformer capacity for flexible installation.
