Honeywell Thermostat Rth221b Wiring Diagram. Es rthrth if any wires. How wire a honeywell room thermostat wiring connection tables hook up procedures for brand heating heat pump or air conditioning thermostats.
Wiring diagrams free. Label wires and remove your old thermostat install and wire your new thermostat set your new thermostat to match your heating cooling system it is preset for the most common system we are here to. How wire a honeywell room thermostat wiring connection tables hook up procedures for brand heating heat pump or air conditioning thermostats.
Wiring diagram and schematic role.
Installing a honeywell rth221 thermostat doityourself com community forums honeywell rth221 doityourself com. It can be w ob ob w o w b or you may even have separate o and b wires. M32169a remove jumper between r and rc if you have wires on both r and rc. Wiring diagrams are comprised of 2 things.