topic Photo for compatibility question in Nest Thermostats

Photo for compatibility question

vcho — Sun, 26 Nov 2023 20:46:01 GMT

Can’t post photo but have the following:

G, C, R, W1, Y on the left

L, W2, E on the right

Current thermostat is a Honeywell T8411R.

Re: Photo for compatibility question

Jenelyn_O — Thu, 30 Nov 2023 17:21:13 GMT

Hi vcho,

Thanks for checking with us the compatibility of your system to the Nest Thermostats. Your system is compatible with the Nest Learning Thermostat. Your L wire which is designated for indicator light on your old thermostat isn't necessary for Nest Thermostats, so you can just leave it disconnected.

Please let me know if you still have questions or concerns, as we'll be willing to help you further.

Best,

Jenelyn

Re: Photo for compatibility question

Neelmo — Thu, 30 Nov 2023 17:48:33 GMT

Hello Jenelyn. I too have T8411R 1028(2) thermostat. Could you help me too?
https://drive.google.com/file/d/1PT1wAMda5EkS9DnAKIDG6wrJxNN6QOcc/view
https://drive.google.com/file/d/1PT1wAMda5EkS9DnAKIDG6wrJxNN6QOcc/view?usp=sharing

Re: Photo for compatibility question

Jenelyn_O — Thu, 30 Nov 2023 17:59:06 GMT

Hi there Neelmo,

It looks like you have a heat pump system. I'd like to take a closer look at it. A few questions: in what country are you located? What is the make and model of your heat pump system? Please take a photo of the wires connected to your system's control board. Ensure that the labels of the wires are visible.

Regards,

Jenelyn

Re: Photo for compatibility question

Neelmo — Thu, 30 Nov 2023 20:01:00 GMT

I'm in America. Model: American standard twe018c140b0. I photographed the wires that go to the thermostat. What other wires are needed?
I'll try to see what's inside. But I don't see any markings on the outside.

Re: Photo for compatibility question

Neelmo — Thu, 30 Nov 2023 21:00:43 GMT

Let's go in order again. Here's the thermostat itself.

Fmerican standard twe018c140b0
I didn't see a board inside, just wires and a circuit. Photo below:

The pump you are talking about is probably Em.Ht. emergency heating system.

Re: Photo for compatibility question

zoeuvre — Fri, 01 Dec 2023 16:13:09 GMT

Hi folks,

@Neelmo, chiming in—your thermostat wires are fortunately compatible with Nest Learning Thermostat 3rd generation and should be wired to the Nest Learning Thermostat base as shown:

The F terminal from your previous thermostat is usually a heat-anticipator wire and will not be needed. The X2 terminal, on the other hand, is your emergency heat and should be connected to the Nest Learning Thermostat's * terminal. Also, here's a guide for the installation and setup of a Nest Learning Thermostat.

Let us know if you have any other questions.

I appreciate your help, Jenelyn.

Thanks,

Zoe

Re: Photo for compatibility question

vcho — Fri, 01 Dec 2023 17:09:37 GMT

Thanks Jenelyn, would it be compatible with the "Nest Thermostat"?

Re: Photo for compatibility question

Neelmo — Fri, 01 Dec 2023 20:22:55 GMT

Thank you Zoeuvre!

Re: Photo for compatibility question

zoeuvre — Mon, 04 Dec 2023 16:29:01 GMT

Hi all,

@vcho, your thermostat wires are compatible only with Nest Learning Thermostat 3rd generation since you have primary and auxiliary heat. The wires should be connected to the Nest Learning Thermostat base as listed below then follow the instructions here for the for the installation and setup of a Nest Learning Thermostat.

G to G
C to C
R to RH
W1 to W1
Y to Y1
W2 to W2 AUX
E to *

@Neelmo, you're welcome! If you have questions or concerns in the future, feel free to start a new thread, and we'll be happy to help.

Let us know if that helps.

Kind regards,

Zoe