Wiring Nest Thermostat

[Dhall185]

Question on wiring up a newly purchased Nest Thermostat (NON learning) model. Currently trying to wire up a single Thermostat for the downstairs portion (split system with two heat pumps, one downstairs, one upstairs)

The wiring has the following:

G

C

R

W1 (jumped from Y)

Y

W2

E 

O

For reference, emergency heat is unnecessary and will be removed from the setup as it is not needed (live in coastal NC). From what I understand then is E and W1 are unnecessary to be wired. However, I am wondering how to wire W2 as well as the O. Assuming W2 would go to W and O then set to OB but wanted to verify first. 

Thanks

[GarrettDS]

Hey there Dhall185, 

I'm so sorry for the delay in our response, but I wanted to hop in here to make sure we addressed your concern. I can definitely understand the confusion when it comes to thermostat issues as it can be very odd to figure out sometimes, but I'm happy to look into this for you. 

First off, I would suggest using the Compatibility Checker to see if your system is compatible. Then I would also suggest reviewing this article as it goes through how to identify wires for the thermostat. Here is a link on contacting a pro to come out to help you with this in case you need it as well.

Please let me know if you have any further questions or concerns as I'm happy to help. 

Best regards, 

Garrett DS

[Jake]

Hey Dhall185,

I wanted to reach out, and see if you are still in need of any help? Please let me know.

Best regards,

Jake

[Jake]

Hey all,

It's been a few days since the last reply. I am going to lock the thread at this time and if you have any questions, please feel free to create a new post. 

Best regards,

Jake