Taco 4 Zone Switching Relay w/Priority, Expandable
Taco Zone Controls are contractor-friendly and loaded with advanced features, so you get the complete hydronic system control you want, quickly and easily. Taco has whatever you’re looking for—Switching Relays, Zone Valve Controls, Priority Zoning Circulators and Fan Controls. Together with Taco Zone Valves, Thermostats, the “00” family of circulators and a host of add-on controls, Taco offers the highest quality and most comprehensive selection of zoning products you’ll find anywhere. Taco Switching Relays combine clearly-labeled PC board layouts with advanced features that allow you to completely customize your system. And whether you’re using basic priority switching, Taco Plug-In PowerPort Cards or add-on power controls, tailoring the system has never been easier. External indicator lights give you instant diagnostic feedback, making service calls or new installation start-ups a snap. All switching relays are UL listed, use standard "ice cube" replaceable relays and are compatible with conventional and programmable thermostats. For larger jobs, switching relays can be expanded up to 20 zones with priority. With the exclusive Taco PowerPort Plug-In Cards, you can easily add such features as post purge, priority protection and pump exercise. Any expandable switching relay can also interface with the Boiler Reset Control and Injection Mixing Add-On Power Controls. Mix-and-match as needed to customize the system. Features include: External Indicator Lights Switchable Priority Simplified Wiring Fully Enclosed Snap-Out Relays Compact Design Fuse Protected 100% Factory Tested Isolated End Switch Contractor Friendly PC Board Layout Universal Thermostat Compatibility UL and CSA Approved 24 Volt Power Input or Output Terminal Extended 3 Year Warranty Made in the USA Additional -EXP Features: Add-on Power Control Plug Built-in; Post Purge and Pump Exercise Functions Switchable Primary Circulator Output 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 Zone Valve Controls
