Hi All: I am looking for the proper wiring diagram to change the Coleman Mach thermostat to the Honeywell RTHL 221B (1) week programmable. I found the RTH111 but that unit is not programmable. Has anyone made this change?
I know I need to add a high low fan switch. This unit also has a furnace type setting. I assume it should be set on Gas or oil.
Linear Mode
