"O" Wire without a *

[adhurwitz]

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 * If so, do I just need to put electrical tape on it and not connect *

Thanks in advance!

[heatseeker]

W-whitw * heat
r-rc red wire *
y-yellow *
g-green wire *
Is this a battery operated or does it need a * If it needs a common consult local hvac guy or girl, if not you should be good to go. do not hook any wires to c or o if you do not know what you are doing.

[Freon]

Wire the thermostat like the old one and tape the O wire. You have a battery powered thermostat. You only need the Y, W, G, R ( jumpered to RC), as heatseeker said.

[adhurwitz]

Thank you both for your replies and your time!!