11-29-2023 10:12 AM
Google Nest Thermostat with Nest Power Connector controlling Gas Fired Hot Water Boiler with Taco SR 501 One Zone Switching Relay controlling Taco 571 Zone Valve with Taco Cartridge Circulator Model 007-F5Taco SR 501 switching relay Diagram
Nest Base Plate
Taco 571 Zone Valve
Taco SR 501 one zone switching relay
12-14-2023 09:50 AM
Hi samuelsinel,
Yikes! I'm sorry to hear that you're experiencing an issue where the zone circulator continues to run even when the zone valve is closed, there may be a problem with the wiring or configuration of your system. Could you send us a photo of your previous thermostat wiring configuration so we can take a closer look? Also, here are a few steps you can take to troubleshoot:
Let us know how it goes.
Best,
Zoe