Caleffi ZVR103 Z-one Valve Relay 3 Zone Control

The Caleffi ZVR103 Z-one Valve Relay is a three-zone control relay designed for managing multiple heating zones in hydronic heating systems. This relay module provides efficient control of up to three independent zone valves, allowing for precise temperature management in different areas of a residential or light commercial heating installation.

Key Features:

• Controls up to three independent heating zones
• Compatible with 24V thermostats and zone valves
• Integrated circulator relay for system pump control
• Priority zone control capability for domestic hot water applications
• Compact design for easy installation in tight spaces
• LED indicators for zone status monitoring
• DIN rail mountable for professional installations

The ZVR103 relay coordinates zone valve operation with circulator pump activation, ensuring efficient system operation while preventing pump dry-running. Ideal for zoned hydronic heating systems including radiant floor heating, baseboard heating, and multi-zone residential applications.