Old Lennox Thermostat

[OldThermoScott]

I bought a Google Nest. Will it work with this old system?

[OldThermoScott]

I tried to post a link to the photos but it didn’t work:

https://photos.app.goo.gl/taoxz5MgPiyM12Ea6
https://photos.app.goo.gl/WnEFdjETHiQ8gsTJ8
https://photos.app.goo.gl/3CNTYN9C1aepoMru9

[Patrick_Caezza]

@OldThermoScott 

We need to see how it is wired, unscrew the two flat head screws and it should come off of the wall.