Honeywell Wiring Diagrams Red Yellow Green Blue And Wires. I need advice on wiring. Changing thermostats from a honeywell th5110d to a honeywell rth 6350d.
I need advice on wiring. Red to r yellow to y1 green to g orange to o blue to c and white to w1 and to e. 30 votes if you see a blue wire its usually providing a return path for the red wire and its connected to the c terminal.
Switch on the heat pump or just about any hvac system that is connected to the four wire thermostat.
Im replacing an old thermostat with mercury and only two wires connected to it. Honeywell wiring diagrams red yellow green blue and wires it is far more helpful as a reference guide if anyone wants to know about the homes electrical system. The blue wire is known as the neutral wire and its job is to take electricity away from an appliance. Almost certainly your existing wires are.