rcull
New Member
I have a Lennox 81M26-27-28 thermostat which I would like to replace with a Honeywell RTH9580WF.
Most of the wiring is simply follow the directions. However on the left side of the Lennox thermostat there are a two wires which are not coded. Can anyone tell me what that part of the thermostat is supposed to control?
Most of the wiring is simply follow the directions. However on the left side of the Lennox thermostat there are a two wires which are not coded. Can anyone tell me what that part of the thermostat is supposed to control?