“Easy replacement for an older controller. One minor issue was that one of the wiring screws was stripped. Fortunately, one from the older controller took its place. Other than that - it would have been 5 Stars. It was my initial frustration that lowered the rating. Super service and price from plumbingsupplyandmore.”
“This product looks better quality made than the 503 EXP version we had that came with our boiler when we purchased it. Just hope it lasts longer and is more reliable than the old one. The PC board burned up in the old one causing the furnace to run and stop every 5 minutes.”
“This is to control various zone circulators with individual thermostats. It's easy to wire up, and dependable. LED lights show if a zone is calling for heat or not.”
“Taco circulators and relay switch were quick and easy to find on the site, the price was great, speedy delivery, and installation is easy and well diagrammed.”
“Used TACO in combination with Honeywell's Series 8000/WiFi Thermostat. Did not require use of resistor for our application. The High Current Capacity of this switch makes it versatile and has 240Vac capability. Also operates quietly when relay(s) are energized.”
