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2nd thermostat wiring

Mattyar
Community Member

I have a 3rd gen nest wired to my heat and ac using an isolation relay to keep the battery from the nest discharging as a common wire wouldn’t work with an individual heat and individual ac system. My heat has multi zone, so I decided to get a google nest for another zone. Lithium ion batteries last about a month before they die so I did get a power connector. My problem is that I don’t know how to wire it if there is already an isolation relay wired in my furnace for my other Nest 3rd gen. Any help? 

12 REPLIES 12

Patrick_Caezza
Platinum Product Expert
Platinum Product Expert

So you have a separate heating and cooling system that is connected to a zone controller? Is that correct?

What is the make and model of the zone controller?

Can you post some pictures on how the controller is wired?

Sounds like you are going to need a couple of the Google Nest Power Connectors.

Mattyar
Community Member

I have a separate heating and AC system. The heating is baseboard with a boiler in the basement. There is a nest 3rd gen in the living room controlling AC for the whole house and heat in all the rooms by my master bedroom.  The master bedroom is its own zone.  I had issues with the living room thermostat not holding juice, so nest sent an hvac guy and he installed an isolation relay on the boiler connected to that zone which is 80% of the house.  I installed a Google Nest thermostat in the bedroom because my energy company offered it at a very affordable cost, but now that battery dies once a month on lithium AAAs.  Attached are the photos. 

 

https://drive.google.com/file/d/1w0fvLFfl3f9aT9ar5lBbL2ZpCxuH3MQT/view?usp=sharing

https://drive.google.com/file/d/1hyZ1wwTa3cZUiXRwt4l-a8w9Z2DqFUfi/view?usp=sharing

https://drive.google.com/file/d/1KWO3cHGZLAT4p8GOc01Z73yAS4wmb-jU/view?usp=sharing

https://drive.google.com/file/d/14fEWoL5-rd5cppevWRMV-bC1GCYh_GBD/view?usp=sharing

 

 

 

EdwardT
Community Specialist
Community Specialist

Hi folks,

 

@Patrick_Caezza, thanks for the help!

 

@Mattyar, thanks for reaching out. I would suggest reaching out to our Nest Pro services to make sure that the Nest Power Connector is wired correctly.

 

Thanks,

Edward

 

Jake
Community Specialist
Community Specialist

Hey Mattyar,

 

I wanted to check in and see if you managed to see Edward's post. Please let me know if you have any questions from here. I would be happy to assist, and make sure you are good to go.

Best regards,
Jake

Mattyar
Community Member

Jake I did see, I tried to chat with a specialist, but the window closed and disconnected.  Now chat is not available. 

EdwardT
Community Specialist
Community Specialist

Hi Mattyar,

 

It's me again. I wanted to check back in to see if you have other questions and concerns. Feel free to let me know if you do. 

 

Thanks,

Edward

aatienza
Community Specialist
Community Specialist

Hey there,

 

Just checking in to make sure that you've seen our responses. Please let me know if you have other questions or concerns as I will be locking this in 24 hours if I won't hear back from you again. Feel free to start a new thread and we'll be happy to help.
 

Thanks,

Archie

Jake
Community Specialist
Community Specialist

Hey Mattyar,


I am sorry to hear about the trouble. Are you still unable to chat with our Team? I want to ensure you are good to go, and everything is working properly from here.

 

Best regards,

Jake

Mattyar
Community Member

What is the best way to get support from nest? 

Ebedia
Community Specialist
Community Specialist

Hello everyone,

 

@Mattyar I understand that you wanted to get our Support Team. Feel free to click this link and fill out all the necessary info to further assist you.

 

@Jake, @Edward, @Patrick_Caezza and Archie I appreciate your help.

 

Regards,
Emerson

Ebedia
Community Specialist
Community Specialist

Hello Mattyar,

 

It's me again. Were you able to fill out the form to reach our Support Team?  Let me know if you have any additional questions from here.

 

Best,
Emerson

Ebedia
Community Specialist
Community Specialist

Hi Mattyar,

 

We haven’t heard any updates from you. I’ll go ahead and lock this thread in 24 hours. If you're still in need of assistance, feel free to start a new thread and we'll be happy to help.

 

Thanks,
Emerson