Hello! My first post here, I'd like to say thank you for hashing a helpful community here that's helped me with a few issues that you've posted about already. This one is odd though, so I decided to finally join and be a contributor and request help that might get an answer for others to use!
So I am replacing an Aprilaire 8600 thermostat with a Honeywell RTH9580WF. I have extra wires, and neither the manual nor the Honeywell site (or even Google) have any answers.
Attached are the old wiring to the Aprilaire mounting plate, the new wiring to the Honeywell plate showing extra wires, the sticker for the heat pump model number, and the page explaining what to do with the O and B wires if I already have a wire attached to C.
Note: I didn't connect the Y2 wire to the Y2 terminal once I realized I had 2 extra wires.
What do I do?
So I am replacing an Aprilaire 8600 thermostat with a Honeywell RTH9580WF. I have extra wires, and neither the manual nor the Honeywell site (or even Google) have any answers.
Attached are the old wiring to the Aprilaire mounting plate, the new wiring to the Honeywell plate showing extra wires, the sticker for the heat pump model number, and the page explaining what to do with the O and B wires if I already have a wire attached to C.
Note: I didn't connect the Y2 wire to the Y2 terminal once I realized I had 2 extra wires.
What do I do?
