Description
Optimize your hydronic heating system with the Caleffi ZVR103, a high-performance 3-zone valve relay and boiler operating control designed for residential or light commercial applications. Trusted for reliability and versatility, this control unit simplifies multi-zone system management and enhances comfort throughout your home or building.
Key Features
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Efficient Multi-Zone Control: Manages up to three heating zones, seamlessly interfacing with low-voltage thermostats or controls to deliver customized temperature regulation in each area.
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Automatic System Pump Activation: Activates the system circulator and secondary pumps whenever any zone calls for heat, ensuring timely and efficient heat distribution.
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LED Status Indicators: Built-in LEDs provide clear visual feedback for operational status and troubleshooting, simplifying maintenance and diagnostics.
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Durable and Installer-Friendly: Designed with large screw terminals, ample wiring room, and an automatic resettable fuse, making installation fast and dependable.
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Expandable and Compatible: Works with 2-, 3-, and 4-wire thermostats and can expand zoning capabilities via simple 3-wire connections for more complex systems.
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Reliable Power: Operates on standard 120 VAC power with a 24 VAC transformer and high-capacity 40 VA transformer (expandable to 80 VA).
