Maybe you just purchase a new thermostat for your home or office and looking to install and wire your new thermostat. I will go over the wire colors for your low voltage 24 volt thermostat! Before you remove your old thermostat lets unplug or shut off the power to your furnace or package unit air conditioner so that we do not blow the fuse or burn out the transformer that supplies the 24 volts to your thermostat.. Here are the colors of wires you will be dealing with for your heating and air conditioning thermostat!
Red wire will be your 24 volt positive side
Green wire will be to operate your fan
White wire will be for your heat if using gas natural or propane
Brown wire will be your 24 volt common
Yellow wire will be your cooling wire used for cooling
If you have a heat pump system we use the orange wire for the heat pump solenoid to reverse the refrigerant flow in the condensing unit or package unit!
Making sure you wire the low voltage to the thermostat is important and if you follow these easy directions you can do your own thermostat saving you money and time calling a heating and air conditioning contractor! If you have any questions or comments about my thermostat wiring please feel free to leave a comment or question on my website! I hope this helps and best luck with that new thermostat wiring project!
