cancel
Showing results for 
Search instead for 
Did you mean: 

Is this the correct wiring??

fggonzales991
Community Member

The old thermostat has the following:                  New Nest thermostat (3rd gen)

                     brown -- W1/O/B             to                    W1

                     black -- Y1                         to                    Y1

                     green -- G                         to                     G

                      red -- R                              to                     Rc

                      blue -- C                            to                     C

                      white -- W2                       to                     W2/Aux

Let me know if the above wiring scenario is correct.. Thanks    

1 ACCEPTED SOLUTION

Hi,

 So the first time I called up Nest, they suggested the following wiring config, based upon the Carrier model number. I guess they assumed it's just a regular conventional ac unit.

  • Y1- Black wire
  • G- Green wire
  • W1- Brown wire
  • RC- Red wire
  • W2- White wire
  • C- Blue wire

So I called up Carrier directly and was notified I have in fact a heat pump. From that info, Nest gave me the wiring config below.

  • Y1- Black wire
  • G- Green wire
  • O/B- Brown wire
  • RC- Red wire
  • W2- White wire
  • C- Blue wire

Nest thermostat seems to be working as it was designed to do.

Fidel G. Gonzales

View solution in original post

5 REPLIES 5

EdwardT
Community Specialist
Community Specialist

Hi fggonzales991,

 

Thanks for reaching out. Based on your description, your wiring looks correct. Let us know once you've installed it and let us know if anything comes up.

 

Thanks,

Edward

Ryan_G
Community Specialist
Community Specialist

Hey everyone,

 

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

 

Thank you for your help, Edward.

 

Regards,

Ryan 


 

Hi,

 So the first time I called up Nest, they suggested the following wiring config, based upon the Carrier model number. I guess they assumed it's just a regular conventional ac unit.

  • Y1- Black wire
  • G- Green wire
  • W1- Brown wire
  • RC- Red wire
  • W2- White wire
  • C- Blue wire

So I called up Carrier directly and was notified I have in fact a heat pump. From that info, Nest gave me the wiring config below.

  • Y1- Black wire
  • G- Green wire
  • O/B- Brown wire
  • RC- Red wire
  • W2- White wire
  • C- Blue wire

Nest thermostat seems to be working as it was designed to do.

Fidel G. Gonzales

MelbaDT
Community Specialist
Community Specialist

Hey Fidel, 

 

Thanks for getting back to us and for sharing what you've done to have your concern resolved. We're glad to hear that you've got it working as it should. 

 

Feel free to let us know if you have more questions in mind. 

 

Best, 

Melba

MelbaDT
Community Specialist
Community Specialist

Hi, 

 

We haven't heard from you in a while so we'll be locking this thread if there is no update within the day. If you have any new issues, updates or just a discussion topic, feel free to start a new thread in the Community.

 

Best, 

Melba