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How can I safely wire Nest to this transformer?
I recently discovered two unconnected extra wires, red and white, that are part of the set of wires connecting my Nest to a HONEYWELL RA89Aswitching relay. Please see attached pic.
As you can see from the other pic, for some reason, these red and white wires are not wired to anything. I assume at one point that they were wired to that transformer that you can see on the lower left side of the pic.
My question is how can I safely wire the Nest to the transformer using these two red and white wires? Thanks for all the helpful advice.