EWC Controls Forum

Thanks Paul. My NCM-300 arrived last night. Nest today. Which wires should I use for the Nest on the new NCM-300?

I ordered a NCM300 from you today. My ultimate goal is to put a Nest on Zone 1. I am looking for info on the swap to the NCM300. I believe I saw that it was basically a wire for wire swap abandoning the O and the B. My current stat, (3M) is using all six wires. Down the right using W and Y on the ...