Nest Compatibility

[glbski]

Lennox iComfort Wifi wiring. Need help and was told to post a picture

 

[glbski]

Wires are red, yellow, white, black

[Houptee]

Do you have a Lennox heating ac system?

Do you know if it is a "communicating system" that sends info back and forth to the Lennox thermostat?

[glbski]

It is a Lennox heating and ac system with a variable speed blower. I don’t know if it is a communicating system, but doubt it with the standard iComfort WiFi thermostat from what I have been able to tell…

[glbski]

Here is a picture from the unit

[Houptee]

Is there a control module box next to the furnace where the thermostat wires are connected? If you have one then to use nest you have to remove the wires from that control box which is part of the icomfort thermostat and connect the wires directly to the furnace terminal strip that have the labels R G Y W etc.

[glbski]

I would have to take off the panel on the blower unit as it looks like that is where all the wired terminate. I would think the terminal board is enclosed there???

[Houptee]

If you Google for Lennox icomfort wiring you will find pdf instructions showing the thermostat wiring at the system end and the module is between the system connections. Where they mounted the module is what you need to figure out .

[EdwardT]

Hi folks,

@Houptee, thanks for the help!

@glbski, how's it going with your Nest Thermostat? Still need our help?

Thanks,

Edward

[glbski]

I plan to take the cover off the unit this week to see if the board is located there,  Will keep this post informed 

[EdwardT]

Hi glbski,

Thanks for the update. Let us know once you've checked the board. We'd be happy to assist if you still need assistance.

Thanks,

Edward

[glbski]

Here is the picture of the board inside the Lennox unit

 

[EdwardT]

Hi glbski,

Thanks for the response. We'd like to know more about this. Please fill out this form so we could investigate further.

Thanks,

Edward

[EdwardT]

Hi glbski,

We got your form — thanks for filling it out. Our team will reach out to you via email to further assist you. Also, please be advised that this thread will be locked after 24 hours.

Thanks,

Edward