Wiring

[ShaunDo1]

My wiring was: W2=White, G=Green, W=Orange, C=Blue, Y=Yellow

For the Nest Thermostat, which color should go into the W? The White or the Orange? 

And does the other go into the OB*

It is a bit confusing as there is no W2 option. I would assume put the White in the W, and the Orange in the OB*, but would like to confirm with someone smarter about these things than I. Thanks,

~Shaun 

727-859-6469 cell

[ShaunDo1]

[Ryan_G]

Hey there,

Thanks for being here in the Google Nest Community. 

I'd like to bump in here and make sure that you’ve seen our response.
Please let us know if you have any other questions or concerns as I will be locking this thread in 24 hours.

Have a great day.

Best regards,
Ryan
 

[Jeran]

Hey there ShaunDo1,

Welcome to the Nest Community Forum! From the looks of the photo you've provided, it looks like you are using a Conventional System, which wouldn't use the O/B terminal. Traditionally, the White cable sends 24 volts to the furnace control to start the heating cycle, and would go into the W terminal. The Orange cable energizes the heat pump reversing valve for cooling, and would go into the O/B terminal. With the picture you provided, it looks like you are using a 2 Stage Cooling system, with the Orange cable is going into the W terminal, and the White wire going into the W2 terminal. You could attempt this same setup with the Nest Thermostat, however, if you aren't completely sure, I'd recommend you contact Nest Support.

I hope that helps, and let me know if you had any more questions or concerns.

Best regards,

Jeran

[Ryan_G]

Hey everyone,

I'd like to jump in here and check if you've seen Jeran's response. Let us know if you need more help by replying to this thread.

Thank you for your help, Jeran.

Regards,
Ryan