Is Google Nest Thermostat Compatible with Amana ASZC16 Series Heat Pump?

[jmangum]

Hello,

I have purchased a Google Nest Thermostat (not the "Learning" version) that I want to install with my Amana ASZC16 series heat pump.  This heat pump has two-stage cooling and a two-speed fan motor.  I noticed on the Nest box that it says that "The Nest Thermostat can control...; and fans, one speed".  It was not clear to me if this meant that the Nest Thermostat will *not* work with a heat pump that has a two-speed fan.  Will this Nest Thermostat work with my system?  Thank you!

Jeff Mangum

[BSSWE]

I have the same question.  Any techs out there? 

[RenzJ]

Hi everyone,

Thanks for posting here in the Google Nest Community. We'd be happy to take a look into this for you. @jmangum, send us a photo of your heat pump control board wiring and the previous thermostat wiring (if you still have a photo of it).

@BSSWE, do you have the same kind of thermostat and heat pump? If not, please answer the following:

1. What type of Nest thermostat are you planning to have?
2. Send us a photo of your current wiring and control board wiring.
3. What is the make and model of your HVAC system?

Keep us posted.

Best,

Renz

[jmangum]

Thank you for your help @RenzJ .  Answers to your questions follow:

1. I am installing the "Nest Thermostat" (the first one listed in the link you provided)
2. Attached is a picture of the current (Emerson) thermostat wiring:Current thermostat wiringI am not sure where to find the control board wiring.  Perhaps it is in the spec sheet for my heat pump (Amana ASZC160481; https://www.theacoutlet.com/aszc160481-4-ton-16-seer-amana-heat-pump.html).
3. My heat pump is an Amana ASZC160481.

Thank you again for your help!

Jeff Mangum

[RenzJ]

Hello jmangum,

Thanks for the update. I’ve reviewed the photo and heat pump details you sent us, and this can work with our Nest Thermostat. But for the two-speed fan, you can wire it as it is, but it will only operate the fan as a single-speed fan.

You can learn more about this on our page: Fan compatibility with Nest thermostats.

I hope this will help. Let us know if you have more questions or concerns

Thanks,

Renz.

[jmangum]

Thank you for the information @RenzJ .  Very helpful.  I am a little annoyed, though, that the compatibility checker did not flag the fact that my system was not compatible with a Nest Thermostat (but apparently *is* compatible with a Nest Learning Thermostat).  I guess I will have to look into returning the Nest Thermostat, as I do want the energy efficiency that comes with a two-speed fan.  Thank you again for your help.

Jeff

[Jenelyn_O]

Hi everyone,

@jmangum, we appreciate you for sharing your thoughts and experience — we'll take it as feedback. Please feel free to let us know if you have any questions or concerns by creating a new thread, as we'll be willing to assist you from there.

I appreciate your help, Renz.

Thanks,

Jenelyn

[jmangum]

Thank you @Jenelyn_O .  -- Jeff

[Jenelyn_O]

Hey Jeff,

Not a problem. Have a good day ahead and thanks for reaching out again in the Google Nest Community forum. 

Cheers,

Jenelyn