Trying to get rid of Lenox thermostats

[kewashi (HousePanel Author)]

This post shows how to do heat and AC. Again I haven’t tried it.

Lennox furnace with ecobee3 (or nest)

Hey all, not sure if it’ll help but I was able to get my Lennox SLP98V Furnace and Lennox XC17 AC unit to work successfully with AC and Heat, I was using the old Lennox iComfort Wi-Fi that used the R, C, i+, i- wiring. It was pretty easy to wire up the heat to work, but the AC is what took me a while. On my Furnace’s control board there were a couple things hooked into these 2 ports, TB83 and TB84. TB84 had my old iComfort, and some other weird thing, but TB83 had the same R, C, i+, i- wires going out to my AC unit, i went out there, and saw that there was a Y1, Y2, C, and R. I simply attached those 4, to their corresponding places on the furnace’s control board. Threw together what i did. [furnace diagram] @dorelpuiulet @kewashi