Honeywell Thermostat Wiring Diagram 6 Wire

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honeywell rth2300b wiring diagram

If you’re on the hunt for a Honeywell thermostat wiring diagram 6 wire, you’ve come to the right place. A 6 wire thermostat is a great option for homeowners who are looking to upgrade their heating and cooling system to something more efficient, but still have a few questions about how to wire it up correctly. This guide will explain the basics of how to wire your Honeywell thermostat, as well as some helpful tips for making sure that everything is done correctly.

Understanding Honeywell Thermostat Wiring

Before you begin wiring your Honeywell thermostat, it’s important to understand how the wiring works. The 6-wire system is composed of two red wires, two black wires, and two yellow wires, each of which serves a different purpose. The two red wires are the hot wires, which provide power to the thermostat. The two black wires are the cold wires, which provide a return path for the power. The two yellow wires are the control wires, which provide the signals to the thermostat to turn the heating and cooling system on and off.

Wiring Your Honeywell Thermostat

Once you have a basic understanding of the wiring system, it’s time to wire up your Honeywell thermostat. The first step is to attach the hot wire to the thermostat’s red terminal. Then, attach the cold wire to the black terminal. Finally, attach the control wires to the yellow terminals. Make sure that all the connections are secure and that no wires are touching each other. Once you have wired up the thermostat, you can then use the Honeywell’s instructions to complete the setup.

Tips for Installing Your Honeywell Thermostat

When it comes to installing your Honeywell thermostat, there are a few tips that can help make the process easier. First, make sure that you read the instructions carefully and follow them step-by-step. Second, make sure that you have all the necessary tools and supplies on hand before you begin the installation. Lastly, if you’re not comfortable with the wiring, it’s best to call in a professional for assistance.


Installing a Honeywell thermostat with a 6 wire system can be a great way to upgrade your heating and cooling system. With the help of this guide, you should now understand the basics of how to wire up your Honeywell thermostat and some helpful tips for making sure that everything is done correctly. With the right knowledge and preparation, you can have your Honeywell thermostat up and running in no time.