TACO ZVC404-EXP FOUR ZONE VALVE EXPANDABLE SWITCHING RELAY

The Taco ZVC404EXP Zone Valve Control works with two three or four wire zone valves. Fully fuse protected it also includes an isolated end switch and built-in priority switch. The contractor friendly PC board layout Taco ZVC404-EXP Zone Valve Relay eliminates the problems caused by incorrect wiring and the unfinished look of conventional zone valve installations. Taco sturdy screw connections add additional reliability while the external indicator lights provide instant diagnostic feedback reducing installation time.