bobbyfp
May 24, 2007, 01:12 PM
In my house I have a Honeywell Chronotherm III (Model T8621A) that I am replacing with a Honeywell Thermostat - TH8110U1003 for a 1 heat and 1 cool A/C system. I would like to know what wires from the old thermostat go to what connections on the new thermostat. Please help. Thank you.