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Valve Control Module with Priority, 3-Zone, 120 VAC Reviews

4.9 Rating 101 Reviews
I just wish there was more information on the circuitry.
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Posted 4 years ago
I purchased this product to replace a 20 year old AGRO good working valve controller so that I could add an ecobee3 internet thermostat. The ARGO controller removes the 40 volt connection from the other zones when the priority zone is active. This disconnects the thermostat and turns it completely off. This TACO controller switches the ground side of the circuit and the thermostat still operates when the priority zone is active thru the separate common connection. Took some research into the wiring of the ARGO vs. TACO controller internal wiring to fix the problem. It works great.
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Posted 4 years ago
Great product. It works!
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Posted 4 years ago
Very happy with the item, just what I wanted.
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Posted 4 years ago
Makes it clear to the homeowner what the system is doing instead of having all the wiring embedded in the zone valves and the boiler. Has also helped with trouble shooting a zone valve problem that didn't send the "open" signal back.
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Posted 4 years ago
This made my boiler and all the thermostats and pumps installation simple. Simple to install and use.
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Posted 4 years ago
Simplified troubleshooting of control valves and adds a priority valve for DWH and other purposes. This is a very well made device that sorts out the wiring mess of a 2 or 3 valve (or pump) hydronic heat system. I installed it in about an hour and the lights clearly show when there is a heat call from a thermostat and when the control valve is open or closed.
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Posted 4 years ago
Great for various zone valves. And now they've added the third 'C' terminal for smart/wifi thermostats.
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Posted 4 years ago