thermostat compatible?

[skbolte]

I'm coming from a Lennox system and the wire codes are

R, i +, i -, C

The "I" codes are not listed in the options.  The wire to i + is yellow.  The wire to i - is white.

Are these comparable to any of the other labelled codes?

old Lennox thermostat wiring

[David_K]

Not by default, no, but it is possible to make it compatible:

Change lennox icomfort thermostat to nest - Google Nest Community