I just bought a Honeywell RCT8101 thermostat. I do not have a heat-pump, I have 2 a/c units (1 controls the upstairs, 1 controls downstairs - they each have there own thermostats), I have electric a/c and gas heat. The house is 6 years old and I just wanted a thermostat that was more programmable then what came with the house.
Old - Y, W, G, RH (2 wires connected, but one jumpered to RC), B and O
The new - Y, W, G, R (I put the RH in, it is jumpered to RC). In the "alternate wiring" it says to put the B into C. But, no place for O. When I turn to the heat-pump wiring, there is an O.
So, from what I can figure out from the installation manual, the only time I would have an "O" wire is if I have a heat pump. Is that correct? If so, do I just need to put electrical tape on it and not connect it?
Thanks in advance!