Taco ZVC403-5 - 3 Zone Valve Control with Priority, Bluetooth & Taco Control App The Taco ZVC403-5 3-Zone Next Generation Valve Control with Priority is a clean, reliable way to manage up to three heating zones using 24V zone valves. Built for hydronic systems, it gives you simple thermostat inputs, clear diagnostic LEDs, and a built-in priority switch to protect your domestic hot water zone when needed. With a compact layout and easy wiring, the ZVC403-5 helps streamline installs, reduce troubleshooting time, and keep multi-zone systems running smooth. Features Part Number: ZVC403-5 (Replaces ZVC403-4) Zones: 3 zone valve outputs (24 VAC) Application: Hydronic heating zone control for zone valves Priority: Built-in priority zone function (commonly used for DHW) Thermostat Inputs: 3 thermostat connections (one per zone) End Switch: Isolated end switch for boiler/primary pump demand Diagnostics: LED indicators for power, thermostat call, and zone status Wiring: Clearly labeled terminals for fast, clean installation Design: Next Generation control board for improved reliability and serviceability Compatibility: Works with most 2-wire and 3-wire 24V zone valves (verify valve requirements) Mounting: Compact enclosure for wall mounting near boiler/mechanical room equipment PKZ1900101
