topic Re: Nest compatible? in Nest Thermostats

Nest compatible?

Timeandtide — Thu, 05 Jan 2023 00:03:46 GMT

Is the Nest learning thermostat compatible with an American Standard Air Handler? Tried installing nest, but it wouldn’t work.

Re: Nest compatible?

Houptee — Thu, 05 Jan 2023 04:12:00 GMT

Yes it should work with this system it looks like a basic Heat Pump wiring.

Did you put the Red to RC and Blue to C

Orange to OB

White to W2 Aux

Y to Y

G to G

Then tell Nest its a Heat Pump forced air with Aux heat on W2

Re: Nest compatible?

Timeandtide — Thu, 05 Jan 2023 11:57:03 GMT

Since the Honeywell wiring had the red wire going to R (not RC or RH) I placed the red wire to the RH option—not Rc. So should I have placed it to RC instead? I read online that if it starts out with just R it typically goes to Rh, if no R option is available.

Re: Nest compatible?

Houptee — Thu, 05 Jan 2023 15:31:12 GMT

I always put it in RC when it is a Heat Pump system because it is the cooling system air handler providing the R and C.

RH is normally used if you have a heating system separate from the cooling (dual transformer systems).

When there is only one transformer the Nest figures out the power is coming in on RH so it still works the way you connected it.

You can do a power test on the Nest to confirm you are getting correct power.

https://youtu.be/GHkfnRp6Tj8

Re: Nest compatible?

Markjosephp — Sun, 08 Jan 2023 14:47:36 GMT

Hello there,

Thanks for helping here, @Houptee.

@Timeandtide, I hope you've got the answer you're looking for. If you're still in need of assistance installing and setting up your Nest Thermostat, feel free to let us know.

Regards,

Mark

Re: Nest compatible?

Markjosephp — Wed, 11 Jan 2023 15:59:55 GMT

Hi Timeandtide,

I wanted to see if you still needed help. Please let us know if you have any other questions or concerns.

Thanks,

Mark

Re: Nest compatible?

Timeandtide — Wed, 11 Jan 2023 16:54:00 GMT

We got it all worked out. All good now. 👍

Re: Nest compatible?

Markjosephp — Wed, 11 Jan 2023 18:11:12 GMT

Hello Timeandtide,

Awesome! I'm glad to hear it was sorted out. It looks like we have come to a solution, so I'm going to lock this thread within 24 hours. If you have any other concerns or questions, please feel free to create a new thread.

Thanks,

Mark