Taco Zone Controls

Taco Zone Valve Controls for Hydronic Heating, Cooling, Zoning, and HVAC Control Systems

Simplified Wiring and Reliable Zone Control for 2-, 3-, and 4-Wire Zone Valves

Taco Zone Valve Controls are designed to simplify hydronic zoning system wiring while providing dependable control for residential and light commercial HVAC applications. These controls work with 2-, 3-, and 4-wire zone valves, making them a flexible solution for hot water heating systems, closed cooling circuits, air conditioning systems, and hydronic heating and cooling applications.

Built with contractor-friendly layouts and diagnostic features, Taco zone valve control panels help make installation, troubleshooting, and system service more efficient. Front diagnostic lights provide quick visual status checks, while simplified wiring and universal thermostat compatibility help reduce installation time and support a cleaner control setup.

Taco Zone Valve Controls are part of a broader zoning control platform that can integrate with Taco thermostats, “00” circulators, switching relays, priority zoning circulators, fan controls, and add-on controls. Depending on the system design, available models can support switchable priority, built-in priority protection, multiple pump end switches, and 24-volt power output for hard-wired thermostats.

With compact designs, fuse protection, factory testing, and field-replaceable transformers, Taco Zone Valve Controls provide a practical zoning solution for contractors, service technicians, and building owners looking for reliable hydronic system control.

Features

• Works with 2-, 3-, and 4-wire zone valves
• Designed for hydronic zoning control applications
• Front diagnostic lights for easier troubleshooting
• Switchable priority
• Built-in priority protection
• Simplified wiring for faster installation
• Universal thermostat compatibility
• 24-volt power output for hard-wired thermostats
• Two pump end switches can control up to three pumps: system, secondary, and domestic hot water
• Contractor-friendly PC board layout
• Compact control panel design
• Fuse protected
• Field-replaceable transformer
• 100% factory tested
• UL approved
• Compatible with Taco thermostats, “00” circulators, switching relays, and add-on controls
• Model families include ZVC403, ZVC404, ZVC405, ZVC406, ZVC404-EXP, and ZVC406-EXP

Applications

• Hot water heating systems
• Closed cooling circuits
• Air conditioning systems
• Hydronic heating and cooling systems
• Residential HVAC zoning
• Light commercial HVAC zoning
• Water/glycol systems with concentrations up to 50%
• Solar systems
• Geothermal systems
• Domestic hot water priority applications