03-05-2023 04:51 PM
My wife and I just purchased a home and we are trying to figure out if our nests will be compatible. The system is set up as dual zone, but there is only one furnace and one AC unit. I'm thinking yes, but just want to double check with someone who has more expertise.
Below are photos of the current thermostat and zone setup
https://photos.app.goo.gl/zSooyCABmXE2QPG79
https://photos.app.goo.gl/vLfrtdKAq1Auszyw5
https://photos.app.goo.gl/Bts9AHMFYDdNHA8j9
03-05-2023 06:48 PM
You have a nice 4-zone system that is only compatible with the Nest Learning Thermostat, 3rd Gen.
Can you post a picture of the zone controller wiring? The cover will pop off.
Do you know if it is a conventional or a heat pump system?
03-05-2023 07:42 PM
Our house is a single AC unit with multiple zones we just set up our first nest. It only controls the zone it is in but so far so good!
03-05-2023 10:04 PM
When you have multiple zone HVAC system, you will have multiple thermostats in the house and a zone controller located near the air handler unit. For multiple zone systems you will need a nest thermostat for each of the thermostats in the house.
Ken, The AC Cooling Wizard
03-06-2023 02:51 PM
Thank you all for your answers!
@Patrick_Caezza It is a conventional system. Please see the zone controller wiring below
https://photos.app.goo.gl/2iueWCYghhmd5gxR8
03-06-2023 08:07 PM
Thank you for the picture.
Your current system is compatible with the Nest Learning Thermostats, 3rd Gen.
Try this wiring.
Red - R to Rc (no jumpers needed)
Blue - C to C
White - W1 to W1
Gray - W2 to W2
Yellow - Y1 to Y1
Black - Y2 to Y2
Green - G to G
03-09-2023 02:04 PM
Hey there,
Thanks for the help Patrick_Caezza, and CoolingWizard.
I wanted to check in and see if you are still in need of any help. Please let me know, as I would be happy to assist, and answer any questions you may have.
Best regards,
Jake
03-09-2023 03:13 PM
Got it figured out, thanks!
03-10-2023 10:16 AM
Hey there,
I am glad to hear you are good to go from here. With that being the case, I am going to go ahead and lock the thread in 24 hours. Please let me know if you have any other questions from here, as I would be happy to take a closer look.
Best regards,
Jake