7 wire system. I have everything labeled but the brown A wire.

[Rpixton]

Hi all, 

Just went out and bought the nest learning thermostat and am in the middle of wiring it up. I have everything labeled with the exception of a Brown A wire.

Looking through the manual of my old system it looks like it’s an “Economizer/Time of Day output - powered via R terminal”. 

Is this completely incompatible or is there a step along the way that I have missed?  

 

 

Any insight is appreciated!  Thanks!

[Jake]

Hey Rpixton,

Sorry for the late reply. I wanted to follow up and ensure you are good to go. Please let me know if you are still having any trouble from here, as I would be happy to take a closer look and assist you further. 

Best regards,
Jake

[Jake]

Hey Rpixton,

I want to ensure you are good to go, and everything is working properly. Please let me know if you are still having trouble, as I will be locking the thread in 24 hours due to inactivity. 

Best regards,
Jake

[Jake]

Hey Rpixton,

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

Best regards,
Jake