What Our Experts Think
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The Taco ZVC406-4 6 Zone Valve Control with Priority is a smart, efficient control panel designed to manage up to six zone valves in hydronic heating systems.
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It features a domestic hot water priority function, ensuring hot water delivery takes precedence when needed.
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The universal thermostat compatibility, LED diagnostic lights, and simplified wiring layout make installation and service quick and error-free.
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Ideal for residential or light commercial HVAC systems, it provides precise zone control, reliability, and energy-efficient operation.
Q&A
Q: How many zones can this control handle?
A: It supports up to six heating zones with one priority zone for domestic hot water.
Q: Is it compatible with standard thermostats?
A: Yes, it’s compatible with most 24V thermostats used in hydronic systems.
Q: What does the priority function do?
A: It temporarily suspends heating zones to ensure fast hot water recovery when domestic demand occurs.
Q: Does it offer diagnostic feedback?
A: Yes, LED indicators display system status, simplifying troubleshooting and service checks.
Maintenance Tips
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Check all wiring connections periodically for tightness and signs of corrosion.
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Keep the unit cover closed to protect electronics from dust and moisture.
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Test the priority feature regularly to verify proper hot water control.
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Mount in a dry, ventilated area away from heat sources for long-term reliability.