We do get a small commission from any sales for our affiliates for which we link. If you do not know what you are doing, then please call a professional. I know it can be a hassle but their instructions should be clearer than what I found on their site for heat pumps. References for you in the video that will help you understand wiring the thermostat. Subscribe to our YouTube channel and visit us at our site. Using shielded wire prevents electromagnetic forces generated from other wires from interfering with the signal inside the shielded wire. Necessary cookies are absolutely essential for the website to function properly. The yellow wires connect to the Y terminals on your thermostat. Additionally, thermostat wiring colors are not standardized. A remote temperature sensor is a solid-state device. Any cookies that may not be particularly necessary for the website to function and is used specifically to collect user personal data via analytics, ads, other embedded contents are termed as non-necessary cookies. Resource: The Home Comfort Book: The ultimate guide to creating a comfortable, healthy, long lasting, and efficient home. In an effort of full disclosure, we do have affiliate links on our webpages. Finally, if that is not possible, then trace the wire out to the source. The green wire connects to terminal G on your thermostat. Furthermore, *be aware that this may have changed, especially if the person who wired the thermostat didn’t use conventional color coding. This website uses cookies to improve your experience. *The most common color I’ve seen used for this terminal and wire designation is a brown wire, but this varies and is entirely up to the installer what color to use. Furthermore, only if you are confident in your skills. However, this should be wired directly to the heating relay or the Aux terminal on a terminal stripboard. X or Aux – There is no universal color used for this terminal designation. Red Wire for RC terminal. Always turn the power off at the air handler and the condenser and make sure there is no voltage at the transformer before proceeding. Remember, the wires coming from the thermostat are terminated in the HVAC equipment. Thermostat Wiring Colors Code | HVAC Control - Table of wire colors along with explanations and exceptions. It is mandatory to procure user consent prior to running these cookies on your website. It's all basically a common sense color combination to make things simple for everyone to understand. Standard Wiring Colors - or Standard Wire Color per Industry Norms, The Home Comfort Book: The ultimate guide to creating a comfortable, healthy, long lasting, and efficient home. How to Wire an Air Conditioner for Control - 5 Wires . These links will lead to you purchase a product from another company. What the color code means for air conditioner and furnace thermostat wires. Orange Wire for O and Dark Blue Wire for B, depending on the installer of the heat pump and the manufacturer. Green Wire for G Terminal. *Although be aware that this may have changed, especially if the person who wired the thermostat didn’t use conventional color coding. This product requires professional installation so it will turn on and off with the blower fan in your air handler but it will offer the protection you need for you and your family from any viruses. Perhaps one of our readers here can help you. Finally, if that is not possible, then trace the wire out to the source. Complete listing of electrical wire types and parts used for air conditioners with electrical code information serves as selection guidelines. The red wire should always come from the hot side of the 24-volt transformer. Breakdown of Colors and Terminals | Thermostat Wiring Diagram for AC Unit. Copyright© 2020 HighPerformanceHVAC.com |. ♣The thermostat wire colors for these terminals will vary depending on the installer of the HVAC system and if they used conventionally accepted colors for that terminal. Always follow the thermostat manufacturer’s instructions whenever changing the thermostat. You also have the option to opt-out of these cookies. The yellow wires terminate at your compressor contactor via an air handler. These color codes are vitally important in connecting the right wires to the corresponding terminals. Click the image to the right for purchase options of the UV light to protect your family. Hopefully you can help me… I have a travel trailer I am trying to install a digital thermostat in… I have eight wires coming out of the wall…, Red, Black, Green,Yellow, Orange, White, Blue, Brown…. You may cause a dead short in the control circuit. Lastly, Rheem and Ruud will usually use the blue wire for the reversing valve. Thermostat wiring colors is not so difficult once you understand how the system works and which wire goes where on the thermostat terminal board and where that wire is terminated in the equipment. Also, check our thermostat category for other detailed articles on thermostats. Gas Heating Troubleshooting and Repair Index, Thermostat Wiring Colors Code | HVAC Control, Thermostat Wiring Colors Code – High Performance HVAC Thermostat Terminal Designations, Thermostat Wire Colors Code | HVAC Control, Thermostat Wiring and Wire Color Chart – Thermostat Wiring Colors Code, Wiring Color Chart for Air Conditioners and Heat Pumps, UVC Light to Kill Viruses and Other Airborne Harmful Things that Affect Health, Thermostat Wiring Color Guide Including Manufacturers Instructions, checklist of things to check before calling a heating and cooling repair service, energizes the reversing valve in heating mode for the heat pump. Finally, this type of wire is different from the typical thermostat wire and a separate wire altogether. Without the O functionality, the system will not cool. Your email address will not be published. Before proceeding, we highly advise that you turn the power off at the circuit breaker. Furthermore, the signal needed to get an accurate temperature is sensitive to electromagnetic forces from another wire inside the structure. They control your air conditioning system. « Here's How to Do It: Wire It Right with the help of my Illustrated Wiring Book Great for any Home Wiring Project. Furthermore, the wire colors on the transformer will be different than the thermostat wires. In labs researchers used a spectrum of ultraviolet light called UVC to kill viruses. E – There is no universal color used for this terminal designation, but this should be wired directly to the heating relay or the E terminal on a terminal stripboard in the air handler or package unit if you have a heat pump package unit. *The most common color I’ve seen used for this terminal and wire designation is a brown wire, but this varies and is entirely up to the installer what color to use. Furthermore, for the thermostat, wiring colors code for this terminal (if equipped) consult with the installer or trace the wire out to the source. *The most common color I’ve seen used for this terminal and wire designation is light blue, but this varies and is entirely up to the installer what color to use. R Terminal for the Red Wire; W Terminal to the White Wire; G Terminal to the Green Wire; Y Terminal to the Yellow Wire; C Terminal to the Blue Wire; Red Wire for Air Conditioner Control Power (Hot) Furthermore, for the thermostat, wiring colors code for this terminal (if equipped) consult with the installer. It will provide heat but not AC. Importantly, there is high voltage inside the air handler, boiler, or other equipment where the wires terminate. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. We also use third-party cookies that help us analyze and understand how you use this website. the new heat pump has white wires but they are not terminated to anything…do you think i should move the O wire and make it the W wire? » You Can Avoid Costly Mistakes! https://highperformancehvac.comhttps://www.youtube.com/channel/UCbzc3vmh2J3x7OpWq1q2Y9A We also believe the products we link to help our site visitors find products they need to enhance or repair their HVAC equipment. thermostat category for other detailed articles on thermostats. It is terminated in the air handler or package unit if you have a heat pump package unit. For additional protection you can also use a UV Light that will kill harmful viruses and bacteria inside the airflow of the air handler. This website uses cookies to improve your experience while you navigate through the website. Yellow Wire for Y Terminal. Sometimes, the thermostat is not the problem. Your email address will not be published. Additionally, that could potentially cost you a service call for troubleshooting and repair. However, these are the most wiring methods used based on my years of experience in the HVAC field, where I successfully wired a lot of thermostats. RC is for the air conditioner and RH is for the heating system. But opting out of some of these cookies may have an effect on your browsing experience. The thermostat wiring on these systems can have very similar wiring . This is why it is good to take a photo so you get it right the first time. https://highperformancehvac.com/thermostat-wiring-colors-code/This video will offer you information and resources to help you understand how to wire your thermostat including thermostat wiring color codes and control circuits for your air conditioner system.