Taco Zone valve Controls work with two-, three- or four-wire zone valves. Fully fuse protected, it also includes and isolated end switch and 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 listed and available in three, four, five and six zones.
External Diagnostics
The indicator lights show full functionality of the products wired to the Zone Valve Control. The green light indicates power is connected. When the thermostat calls for heat, both the appropriate zone valve and yellow indicating light is energized. When the zone valve is fully open, the end switch relay and red indicating light are energized.
