How to wire your thermostat home or office

How to wire your thermostat home or office by D C’s heating & air conditioning 949-770-9616 Maybe you just purchase a new thermostat for your home or office and looking to install and wire your new thermostat. Many homeowners and businesses upgrade to the new WiFi thermostat.

How to wire your 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.

How to wire your thermostat
How to wire your thermostat

How to wire your thermostat home or office

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 volts common.

Yellow wire will be your cooling wire used for cooling.

How to wire your thermostat
How to wire your thermostat

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! A heat pump unit is the air conditioner reversing the refrigerant flow and making the hot gas go to the evaporator and heating your home or office.

How to wire your thermostat
How to wire your thermostat

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.  Please take your time and double check your work.  Even though it is low voltage you can damage equipment.

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!

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D C's heating & air conditioning  
24872 Wells Fargo Drive Laguna Hills, CA 92653 
Call 949-770-9616  
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