Nest Learning 3rd Gen with Aprilaire Fresh Air Ventilator

[Frustrated27]

Hi -

Trying to install Nest Learning 3rd Gen and I have wires labeled I1 & I2.  The see diagram below. I've used the compatibility checker and believe these wires are the same as H1 & H2 as it's the same wiring as a humidifier.  Could you please confirm?

https://www.aprilaire.com/whole-house-products/ventilation

[Ryan_G]

Hi Frustrated27,

Thanks for reaching out here in the Google Nest Community.

After checking the compatibility checker and it shows that it is not compatible with the Nest Thermostat, we could get an additional help with your HVAC technician to verify that we can use the I1 and I2 terminal.

Check out this Nest Pro service to get additional help on how to install your Nest Thermostat.

Regards,

Ryan

[Ryan_G]

Hey folks,

I just wanted to follow up and see if you're still in need of help. Please let us know as we would be happy to answer any questions you may have. 

Best regards,
Ryan
 

[Ryan_G]

Hey there,

Thanks for being here in the Google Nest Community. 

I'd like to bump in here and make sure that you’ve seen our response.
Please let us know if you have any other questions or concerns as I will be locking this thread in 24 hours.

Have a great day.

Best regards,
Ryan