Hi amouradian,
Thanks for posting in the Google Nest Community forum. It looks like you have a heat pump system. It is compatible with your Nest Learning Thermostat. You can follow the wiring guide below.
WIRING GUIDE:
- C - Blue (Common)
- OB - Orange (Heat pump)
- G - Green (Fan)
- Y1 - Yellow (Cooling)
- W1 - White (Heating)
- RC - Red (Power)
Please let me know if you still have questions or concerns, as I'll be willing to help.
Best,
Jenelyn
