I just got a Honeywell CT3611 programmable thermostat for my Ruud multistage heat pump. While labeling and connecting the wires, I discovered to my horror that my old Ruud thermostat had two unconnected wires inside - one colored black and the other colored orange. At the same time, it also had 3 unused terminal screws - named O, L, and E. My question is what do I do with these 2 unconnected wires. Do I just leave them just like before, i.e., unconnected to anything, or should I try to connect them to either one of the O, L and E screw terminals on the new Honeywell? How do I know which wire goes to where?
Everything else looks OK:
X goes to C R goes to R Y goes to Y W2 goes to W2 G goes to G B goes to B
Note I am connecting the B on the Ruud to the B on the Honeywell, and not to the C, since C is already connected to X and there is no O connection. I hope this is correct.
I tried calling Honeywell Customer Service but they are closed on weekends. Meanwhile we are expecting a frost here near DC tonight.
Any assistance will be appreciated. Thanks.