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Rth5160d1003 New Thermostat wiring from Older 7 Wire Setup o & b wires?

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Questions › Rth5160d1003 New Thermostat wiring from Older 7 Wire Setup o & b wires?
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Garmaine asked 4 years ago

enter image description hereI need help with wiring up the new thermostat. I have a Gas furnace heat with heat pump. Goodman Units. The old thermostat G=GREEN C=BLUE Y=YELLOW R=RED O=ORANGE b=BLACK E=WHITE. The new thermostat has g,c,y.e,r but O/B is one terminal so Im unsure how to finish up. The other options are w2/aux, k l/a,s,s u See image of new thermostat setup. So does the Orange wire go to o/b and the black wire??

Here are the pictures you requested. Appears black wire not used??

enter image description here enter image description here enter image description here

Thanks for all the help!!

Here is the final setup that I went with. Forgot to take picture so just used graphic on new setup.

enter image description here