Help with wiring Nest Learning thermostat to Lennox 5-wire system

[DRVG]

Want to see the way to install the nest learning thermostat to a Lennox system

Thanks

[Patrick_Caezza]

@DRVG 

Your current thermostat uses a propitary interface that is not compatible with any of the Nest thermostats.

Look in the furnace/air handler and take a picture of the control PCB and the terminal blocks.

I have looked for but can not find the Lennox Thermostat that you have pictured. Is there a model number or such on it?