3 Zone Next Generation Zone Valve Control with Priority

Note: Image may not be exact representation of item. Taco Zone Valve Controls work with two-, three-, or four-wire zone valves. Fully fuse protected, they also include two isolated end switches and built-in priority protection. The contractor friendly PC board layout eliminates the problems caused by incorrect wiring and the "unfinished" look of conventional zone valve installations. The sturdy screw connections add additional reliability, while the external indicator lights provide instant diagnostic feedback, reducing installation time. All Taco Next Generation Zone Valve Controls are UL listed and carry an extended 3 year warranty. Features: * Front Diagnostic Lights * Switchable Priority * Built-in Priority Protection * Simplified Wiring * Compact Design * Fuse Protected * 100% Factory Tested * Built-in: Post Purge and Pump Exercise Functions * Two boiler contacts, utilizes full functionality of Mod-Con boilers * Expandable to 20 Zoning Panels (120 zones if all are 6 zone panels) * Interface with -EXP Switching Relays * Contractor Friendly PC Board Layout * Universal Thermostat Compatibility * 24 Volt Power Output for Hard Wired Thermostats * Field Replaceable Transformer