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Grundfos pump replacement
So, I am replacing my grundfos 15-42 with a grundfos 15-58FC, controlled by a Honeywell 8124C. The -42 only required two wires, whereas the -58FC calls for the use of a green ground. There are only two wires coming from the aquastat, I’d assume a line and a neutral. Has anyone used this setup, and if you ran a grounding wire, what did you ground it to?