Fully fuse protected, they also include two isolated end switches and a built-in priority switch. 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 Zone Valve Controls are UL and CSA listed and carry an extended 3 year warranty.

Whether you want to expand up to 20 zones or utilize the advanced features of the PowerPort Cards and Add-on Power Controls, Taco -EXP controls allow for simple integration of advanced features. Plug-in any combination of cards and controls to optimize the operation of any system.

Features:

• Taco Zone Valve Controls work with two-, three-, or four-wire zone valves.
• External Indicator Lights
• Switchable Priority
• Simplified Wiring
• Works with 2, 3, or 4-Wire 24V Zone Valves
• Compact Design
• Fuse Protected
• 100% Factory Tested
• Two Isolated End Switches
• Extra Set of Dry Contacts
• Contractor Friendly
• PC Board Layout
• Universal Thermostat Compatibility
• UL and CSA Approved
• Sturdy Screw Connections
• Extended 3 Year Warranty
• Made in the USA

Additional -EXP Features:

• Two Plug-In PowerPort Card Slots
• One Add-On Power Control Plug
• Expandable to 20 Zones
• Interface with -EXP Switching Relays