Old Honeywell Thermostat Wiring Diagram. I purchased one of these honeywell rthb thermostats to try it out but the instructions are pretty much useless and my wires coming out of. From that manuals instructions for wiring the honeywell rthb day.
Take away your old thermostat but leave the wallplate with the wires attached. T6861 honeywell thermostat how to open loke honeywell thermostat. Take away your old thermostat but leave the wallplate with the wires.
Old honeywell thermostat wiring diagram source.
See the diagram below for what each wire controls on your system. Honeywell is not going to be able to tell you how the thermostats are connected in your house. 7 wire honeywell thermostat wiring diagram thermostat wiring made simple youtube. Wiring diagram for old honeywell thermostat.