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Nest compatible?

Timeandtide
Community Member

F57C5D53-7460-4D10-AEDE-AE5AFEEBB1B6.jpeg

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

7 REPLIES 7

Houptee
Silver Product Expert
Silver Product Expert

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


Houptee -- NJ Master HVAC Licensed Contractor

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. 

Houptee
Silver Product Expert
Silver Product Expert

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

 


Houptee -- NJ Master HVAC Licensed Contractor

Markjosephp
Community Specialist
Community Specialist

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

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

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

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