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Will my nest thermostat work with my wiring?

aerovette99
Community Member
  • I have a hunter 44260 thermostat now and it has 4 wires and a jumper. G, RH, RC jumped to RH, Y/O, and W/B. The instructions said remove the jumper but when I did the install it says it is missing Y1 (which was never hooked up) system is 24 volts. The system, heat and a/c work fine with the hunter. 

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6 REPLIES 6

Patrick_Caezza
Platinum Product Expert
Platinum Product Expert

It looks like you have a conventional system with a furnace and not a heat pump.

I would suggest wiring it like this.

Green - G to G

Red - RH to Rc (jumper to RC not needed)

Blue - Y/O to Y1

White - W/B to W1

The Nest 3rd GEN Learning Thermostat should work just fine without a common (C) wire, but I always suggest that you install one anyway. If you don't have an extra wire, then I would suggest using the Google Nest Power Connector device.


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Thank you so much Patrick. You are correct that it is a furnace type conventional system. One question please . While it may be best for me to just get the connector, I believe I can run a wire since the furnace is only 20 feet away from thermostat in my attic. When you day run a common, where would I make the connection at the furnace. I have an old Goodman furnace. I'm very good with wiring, but I'm not sure about the phrase run a common from the furnace. I would assume (not smart) that the common would hook up to "C' on the nest, but where on the furnace.

Thanks again for all of your help and from stopping me from returning the nest. I really wanted it.

Have a great day

Best Regards

Dave

Patrick_Caezza
Platinum Product Expert
Platinum Product Expert

There should be a C terminal on the control board in the furnace. If your furnace only has wire-nut connectors, then you'll need to look at the schematic drawing on the furnace to figure out which color wire is the C wire.


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Ryan_G
Community Specialist
Community Specialist

Hey aerovette99,

 

I just wanted to follow up and see if you're still in need of help? Please let me know, as I would be happy to answer any questions you may have.

 

Thank you for your help, Patrick_Caezza.

 

Best regards,

Ryan

Ryan_G
Community Specialist
Community Specialist

Hey there,

 

Just wanted to jump in here to check to make sure that you saw our response. Please let us know if you have any other questions or concerns as I will be locking this in 24 hours.

 

Have a great day.

 

Best regards,

Ryan
 

Ryan_G
Community Specialist
Community Specialist

Hey folks,

 

It looks like we haven't heard back from anyone so I'm going to go ahead and lock the thread. If you have any further questions or concerns, feel free to create a new thread.

 

Have a great day.

 

Best regards,

Ryan