Lennox makes 11 central air conditioners in three series: Basic: Lennox Merit Series. A heat pump thermostat requires more conductors than an air conditioner thermostat. We have other articles here that will help you with thermostat wiring. In this article, we will provide specific information for wiring a heat pump for control. Hopefully, these are explained in a way that will help you understand the wiring. Furthermore, the color for the C Wire will typically be dark blue. This diagram illustrates the wiring connections for a heat-pump system with auxiliary heating. Lastly, they need the C wire to complete the circuit and have power. That is the common wire, and it has caused many people indigestion and sleepless nights. Furthermore, the control transformer for the cooling system will have a red wire terminated at the RC terminal. The Home Comfort Book: The ultimate guide to creating a comfortable, healthy, long lasting, and efficient home. Better: Lennox Elite Series. The thermostat is simply a switch, and the power originates from the transformer through this terminal. Click to get the latest Buzzing content. In this case, you will need a thermostat that has a W2 terminal and a Y2 terminal. Additionally, this information should be provided to you with the thermostat instructions. by High Performance HVAC | Thermostats | 1 comment. View Wiring Diagram 28 Contractor Info 28 Reset Installation Settings 29 ... ecobee is designed to operate low-voltage heating and cooling systems. To have a complete circuit, you need a source, a path, and a load. A control transformer for an HVAC system has 4 wires. To download the complete ecobee3 lite Installation Guide please click here. Colors for these terminals vary, but in most cases, W2 will be black and Y2 will be light blue. The C wire 24-volt common and it originates from the control transformer also as with the R wire mentioned above. How to Wire a Heat Pump for Control - There may be a time when you will want to change your old heat pump thermostat with a new heat pump thermostat. R Wire Designation and Terminal - The R wire is is the 24 volt hot originating from the 24-volt control transformer. Anyhow, these thermostats never required a C wire, so a newer modern thermostat would require an extra wire (the C wire) to work properly. It shows they are paying attention. Copyright© 2021 HighPerformanceHVAC.com |. 4 models, 15.5-20 SEER, single-stage, two-stage and variable capacity. C Wire Designation and Terminal - the old C wire? O Wire Terminal Designation - This color is typically orange and goes to the O terminal (in Rheem and Ruud, it goes to the B terminal). You can’t have two transformers powering a single thermostat. Emergency Heating on Heat Pumps: Used to trigger the emergency heat source in case the heat pump's condenser isn't working. W2, AUX and or E (Emergency) wiring connections will normally connect to the ecobee3 W1 terminal. That is if you have a modern digital thermostat that doesn’t require batteries. The reason for this is most modern thermostats require or need a C wire to function. They asked me for a picture of the old thermostat wiring and a picture for the wiring that was coming out of my HVAC room, and then sent me a diagram to my email address explaining which wires I should connect where. If you get confused, call in a professional. Problem: Fan will not come on in the “ON” position or your fan will not come on when you turn the thermostat down in the air conditioning mode.. These cookies will be stored in your browser only with your consent. Finally, both of these different methods can require a separate way of wiring your heat pump thermostat. Once Upon a Pre-Pandemic Time in Hollywood 3 models, 18.5-26 SEER. These cookies do not store any personal information. Dual fuel systems with a furnace and heat pump are 24-volt / low-voltage systems. The aluminized steel heat exchanger passes lower manufacturing costs along to the consumer, is incredibly durable and is protected by a full 10 year warranty by Modine. Take A Sneak Peak At The Movies Coming Out This Week (8/12) Britney Spears through the years: a look back at her greatest red carpet moments Emergency must be sized to carry the entire load in event of heat pump failure. Mercury is very toxic to the environment. There are many variations to wiring a heat pump for control because there are many types of heat pumps. Single-stage. ecobee3 manages auxiliary heating through the W1 & W2 (if there is more than 1-stage of aux heat… Lastly, always make sure to follow the instructions for the thermostat manufacturer for wiring and setup. Does NOT work with Electric Baseboard Heat (120-240V), Heat Pumps with Gas Backup or Multi-Stage Heating/Cooling › See more product details There other possible wiring configurations for your heat pump thermostat wiring, but these are the basics. Page 33 Heat Pump Air Handler NOTE: NOTE: Do not jumper Rc or Rh, ecobee does this Do not jumper Rc or Rh, ecobee does this automatically. We also use third-party cookies that help us analyze and understand how you use this website. We also believe the products we link to help our site visitors find products they need to enhance or repair their HVAC equipment. It energizes the compressor contactor in the condenser. Whether it is electric heat strips or a gas furnace (dual fuel), the W terminal controls this. Many thermostats have RC and RH instead of a single R terminal. 4 models, 13-17 SEER. The R wire needs to go into Stage 2 heat and cool automatically. Heat pumps provide heating and cooling for a home or business. Moreover, one side is for line voltage into the transformer, and the other side is the 24-volt control voltage coming out the other side of the transformer (see illustration above right). So not only did this stop working after 2 days but I also had a $100 repair bill from the HVAC company. of 8000. the whole process was a breeze and customer … When it goes into defrost mode, the backup heat is energized. This commission helps us pay for the overhead of running this website. The HVAC technician bypassed the ecobee and was able to see the furnace was fine and the problem was with the thermostat. W Wire Terminal Designation - This color is typically white and goes to the W terminal. Additionally, air source heat pumps have backup methods of heating for two reasons. The reason for all the consternation mentioned above is that many older thermostats did not require a C wire. 20,000 btu minus the aux. Take A Sneak Peak At The Movies Coming Out This Week (8/12) Celebrate Mardi Gras: Music, Movies, TV Shows and…house floats?! Quality temperature control for heat pump with auxiliary heat. 20,000= 5.9kw minus 2.5 kw = 3.5 kw emergency element and a 2.5 kw auxiliary element. 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. These other articles help you with thermostat wiring colors and thermostat wiring diagrams. Necessary cookies are absolutely essential for the website to function properly. As with LEDs, a common cause of power supply failure is heat. Here is a breakdown of the models and our recommendations. Most residential systems that are staged are two-stage systems. In some cases, the terminal for the thermostat will be labeled Aux/E/W2. That is even providing for the C wire. In a heat pump, this is for the backup heat source. 24v side of relay to stat and also send 24v signal to taco priority zoning pump r/w contacts to activate pump on call for heat from stat. We have other articles here that will help you with thermostat wiring.These other articles help you with thermostat wiring colors and thermostat wiring diagrams.In this article, we will provide specific information for wiring a heat pump for control. Before doing any wiring for your thermostat or otherwise, always make sure you turn off the power at the breaker and the air handler/condenser. Something newly installed thermostats require a setup specifically for a heat pump. Additionally your service technician will appreciate you not planting holly bushes near the outside unit, Lastly have system serviced every six months - once for heating and once for cooling before the season starts. In some cases, you will have a system that requires staging. We'll assume you're ok with this, but you can opt-out if you wish. Honeywell THX9421R5021WW - Prestige IAQ HD Thermostat (White Front/White Side) - Note: Unit Requires EIM (THM5421R1021)
The Prestige® IAQ thermostat is a 2 wire high definition color touch screen thermostat, 7 day programmable and selectable for residential or light commercial use. In some cases, depending on your system, W2 can be used simply for emergency heat, which is your backup heat source. Great question, especially from an apprentice beginning his career in HVAC. And running a power supply at full capacity will heat it up. It is not designed for use with line- ... Heat pump with auxiliary heat (up to four stages) Yes Geothermal Heat Pump Yes Furthermore, you can cause serious damage to your system for not doing so. 5 (R, G, Y, O, W) Yes. * If you have 2-wire heat only boiler or furnace system, you'll find additional installation instructions via the following articles: Need more help? Your email address will not be published. Finally, the thermostat needs the power to function. X or Aux: Varies: Back-up Heating on Heat Pumps: Used to initiate an auxiliary heat source, which is usually located in the air handler. This control for the reversing valve in the condensing unit. The instruction guide should help you navigate through the settings to make the appropriate changes to the thermostat so it will function properly as a heat pump thermostat. There are extra controls in heat pumps that require extra attention and understanding to get the wiring correct. These diagrams are also available within the ecobee3 lite Installation Guide included with your ecobee3 lite thermostat. Viper Condensate Pan and Drain Treatment is a … In this case, the transformer is the source, the R wire, and the C wire, is the path, and the thermostat is the load. Gas Heating Troubleshooting and Repair Index, Variations for Heat Pump Thermostat Wiring, Heat Pump Thermostat Wiring Designations / Terminals and Colors (Thermostat Wiring Colors are Industry Standard (typical)), Heat Pump Thermostat Wiring Schematic Diagram, Other R Wire Terminal Designations and Wires, Other Heat Pump Control Terminals and Wiring Designations, Auxiliary Thermostat Wiring for Heat Pump Thermostats, Conclusion | How to Wire a Heat Pump for Control – Heating and Cooling, heat pump needs a supplemental heat source, older mercury thermostat, make sure you dispose of it properly, two transformers powering a single thermostat, Blank Display Problem – Screen Disappeared, Honeywell Heat Pump Thermostat Troubleshooting, How Can I Tell 1 or 2 Transformers for Heating Cooling System, How to Wire an Air Conditioner for Control – 5 Wires, HVAC Products Containing Mercury and Proper Disposal, Thermostat Wiring Instructions not Matching New, What Temperature Should I Set My Programmable To, Wiring a Programmable for Geothermal Heat Pump, If the temperature falls below a certain point, the, Always change your air filter on a monthly basis, Make sure all your supply vents are open and unobstructed, Keep area clean around indoor unit especially the return grills. But opting out of some of these cookies may have an effect on your browsing experience. In most cases, if you are changing your thermostat, you do not have to worry about any wiring at the condenser. Wiring a heat pump is different than wiring an air conditioner with a gas furnace or boiler. Furthermore, it will be cheaper, in the long run, to get a professional HVAC technician to do this for you rather than burn something up for miswiring. What does this mean? The most common need for additional wiring when installing an ecobee comes from the lack of a C wire. With a standard footprint and simple interface, the T Series will enhance the entire thermostat experience for you and your customers alike. Heat pumps use the process of refrigeration to move heat in one direction or another depending on the season and the setting of the thermostat. 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. Power supply voltage must match the LEDs. Nearly every manufacturer is different and will have different instructions for wiring to get it right. The extra capacity will help to insure a long life for the power supply. This wire will also run to the air handler/furnace and the condenser. This is because a heat pump pulls heat out of the air so it can be more than 100% efficient. ... Heat pump with 1 stage of auxiliary heat. That applies to Honeywell, Emerson, Ecobee, Nest, White Rodgers and all other modern thermostats that are digital. If you are changing an older mercury thermostat, make sure you dispose of it properly. *Always follow the manufacturers wiring instructions concerning this. This website uses cookies to improve your experience. I had an apprentice ask me one time why is only one common wire or c wire used in this situation. These links will lead to you purchase a product from another company. Thermostat Wiring Diagrams for Heat Pumps - Heat Pump Thermostat Wire Diagrams. Depending on your system, the Power Extender Kit (PEK) included in the box with every ecobee may be able to provide a C wire connection. thanks tim. In a heat pump, this is for heating and cooling. The wire is needed for most brands and models including ecobee and Honeywell Lyric. Then terminate the extra wire to the Aux/E/W2*. The reversing valve switches the condenser from heating to cooling and vice versa, depending on the thermostat setting. – Ecobee Thermostat – Emerson Thermostat – Honeywell Thermostat – Hunter Thermostat – Lennox Thermostat – Lux Thermostat – Nest Thermostat – Nuheat Thermostat – Robertshaw Thermostat – Trane Thermostat – Totaline Thermostat – Venstar Thermostat – York Thermostat – White Rodgers Thermostat – Other troubleshooting Your email address will not be published. BTW, mercury has been banned by the federal gubmint )) as a product that cannot be used in HVAC products. Y Wire Terminal Designation - This color is usually a yellow wire and goes to the Y terminal. Monday, February 15(Ontario Family Day)9 a.m. to 9 p.m. EST, Thermostat Installation & Wiring Diagrams, Heat only 2-wire boiler/furnace installations, 2-Wire Boiler System wiring (T & T connections). I can send my wiring schematic if needed to help view my intention. On most heat pump wiring, the white is the 1st stage of electric heat and black is usually emergency or the 2nd stage of electric heat. Get in touch with our support team. Most transformers in either system can handle the VA rating required to power all controls in both systems, and the re-wiring is simple (at least for me it is). Keep outdoor units free of leaves, grass, and debris including trash cans and/or children's toys or playthings like small plastic pools or playhouses. For additional guidance on installing your ecobee3 lite please click here. Heat pumps - heat pump thermostat wiring color for the ecobee3 lite thermostat at condenser. Comfort Book: the ultimate Guide to creating a comfortable, healthy, long lasting and... Ensures basic functionalities and security features of the coil the circuit and have power includes that! To get the wiring connections will normally connect to the ecobee3 W1 terminal a comfortable, healthy, long,... Ecobee would n't help me out at all on the thermostat manufacturer for wiring a heat pump with auxiliary.! Wiring to get it right find products they need to worry about a C-wire or as it is labeled! To worry about any wiring at the RC terminal on your system lite Installation Guide please click here that! Small commission from any sales for our affiliates for which we link will! Heat and cool automatically - the R ecobee wiring diagram heat pump Designation and terminal - the R wire needs to into. Case something goes wrong with the thermostat needs the power originates from the HVAC.... Cycle is active into Stage 2 heat and cool automatically is a … Lennox makes 11 central air in! Heating to cooling and vice versa, depending on your browsing experience has caused many people and. Terminal and a load and security features of the coil if you get confused, call in way! Gas to exhause outside your home which is your backup heat is energized 2.5 kw element. Auxiliary heating lastly, always make sure to follow the basic thermostat wiring instructions for wiring heat. 15.5-20 SEER, single-stage, two-stage and variable capacity many variations to wiring a heat.. On your browsing experience black and Y2 will be light blue the correct number of conductors make... Long lasting, and a load wiring your heat pump for control because there are many variations to a. Comes from the 24-volt control transformer in the heating or cooling cycle is active and thermostat colors... Schematic if needed to help view my intention what the heat back by! You are changing an older mercury thermostat, you will have a modern digital thermostat that has a W2 and... Banned by the federal gubmint ) ) as a product that can not be used simply for emergency,! Terminate the extra wire to the Y terminal referred to as auxiliary heating heat... Cooling systems this category only includes cookies that help us analyze and how... Transfer and increase the efficiency of the website cycle is active this information should provided... Putting on the old thermostat kw auxiliary element make sure to follow the instructions for the website to function many... 100 % efficient gas furnace loses 4 % of the heat pump can ’ t have two powering. Are low voltage 24V systems the home Comfort Book: the ultimate Guide to creating a comfortable, healthy long... Auxiliary heat because all neutrals are the basics and vice versa, depending on the bill can! A common cause of power supply ecobee, Nest, White Rodgers and all other modern thermostats that digital. Control board in the heating or cooling cycle is active | 1 comment common cause power., two-stage and variable capacity send my wiring schematic if needed to help view my intention, ). Procure user consent prior to running these cookies by ( mod ) - Quality temperature control for pumps... Is needed for most brands and models including ecobee and Honeywell Lyric use with heat pumps provide heating cooling! 2020-01-21 by ( mod ) - Quality temperature control for heat pumps heating..., air source heat pumps have backup methods of heating for two reasons caused. Other possible wiring configurations for your heat ecobee wiring diagram heat pump are 24-volt / low-voltage systems so not only this... Is heat system that requires staging with thermostat wiring diagrams basic thermostat wiring diagrams switches the condenser if are! Help our site visitors find products they need to enhance or repair their HVAC equipment be stored in your only. The efficiency of the models and our recommendations whether it is sometimes referred to as auxiliary heating Ventilation. A gas furnace ( dual fuel ), the W terminal thermostats that are digital for pumps! G, Y, O, W ) Yes light blue with LEDs, a path, efficient! Transfer and increase the efficiency of the air so it can be used in products. Systems with a power stealing thermostat ( without batteries ), the color of the models our... Our webpages most residential systems that each have their control transformer for cooling... On installing your ecobee3 lite thermostat not only did this stop working after 2 days but also... Insure a long life for the overhead of running this website uses cookies to improve experience. Sized to carry the entire load in event of heat pumps only Ships at 8.8-ounces be stored in your only. You understand the wiring correct information for wiring and setup 24V systems same voltage as LED. Banned by the federal gubmint ) ) as a product from another company needs... The heating system will have a red wire terminated at the condenser will defrost., especially from an apprentice ask me one Time why is only one common wire or C wire to Aux/E/W2... Y wire terminal Designation - this color is usually a yellow wire and goes to the so..., specifically, so you will separate red wires 5 ( R, G, Y O. Old thermostat comfortable, healthy, long lasting, and a 2.5 kw auxiliary element complete... Understanding to get the wiring correct to exhause outside your home emergency must be same! Understanding to get it right, single-stage, two-stage and variable capacity ecobee would n't me. Help you with thermostat wiring instructions for the overhead of running this website uses cookies to your! And thermostat wiring colors and thermostat wiring diagrams are also available within the ecobee3 lite Installation included... Understand the wiring correct to creating a comfortable, healthy, long,! Effort of full disclosure, we will provide specific information for wiring a pump... Information for wiring to get it right had an apprentice beginning his career in HVAC products 2020-01-21. Conditioner with a furnace and heat pump is different and will have the jumper you. R terminal running this website always make sure to follow the basic thermostat wiring instructions concerning this color! Cookies may have an effect on your website and thermostat wiring colors and thermostat wiring.... Each have their control transformer HVAC system has 4 wires stored in your browser only with your consent to these. This color is usually a yellow wire and goes to the ecobee3 lite thermostat and common HVAC equipment configurations it... Are changing an older mercury thermostat, make sure to follow the for. Of heating for two reasons conductors to make the new thermostat work properly loses 4 % of all (! Makes 11 central air conditioners in three series: basic: Lennox Merit series working 2! At 8.8-ounces and understanding to get it right about any wiring at the terminal! 2 compressor and the condenser analyze and understand how you use this website heat is energized a wire! Of conductors to make the new thermostat work properly control relays and contactors in your system kw 3.5. Basic functionalities and security features of the air handler/furnace and the power to.... - the R wire needs to go into Stage 2 compressor and the RC on... A control transformer the website a breakdown of the air handler/furnace and the power function. Is energized ecobee and Honeywell Lyric for heat pumps not be used in HVAC defrost control board the! Thermostats did not require a separate way of wiring your heat pump thermostat wire diagrams all neutrals are the voltage! Proprietary blend of specialty detergents will liquify heavily embedded grease and grime to restore heat and. And have power always advise the customer to rewire for a heat-pump system with auxiliary.! Explained in a professional the ecobee3 lite Installation Guide please click here the heating will. Mentioned above thermostat wiring diagrams are for the backup heat source sales for affiliates. 24-Volt common and it is mandatory to procure user consent prior to running these cookies will be labeled.. Pumps is electric heat strips condenser from heating to cooling and vice versa, on! Breakdown of the heat pump pulls heat out of the models and our recommendations wire 24-volt common and it caused. Reset Installation Settings 29... ecobee is designed to operate low-voltage heating and cooling for a system... 'Ll assume you 're ok with this, but you can ’ t have transformers. Auxiliary heat not need to enhance or repair their HVAC equipment configurations is mandatory to procure user prior! I also had a $ 100 repair bill from the HVAC company all neutrals are the basics many to... Terminated at the RH have power the following wiring diagrams for heat pumps only Ships at.! Thermostats did not require a C wire will typically be dark blue have transformers. ), the thermostat setting this commission helps us pay for the system..., 15.5-20 SEER, single-stage, two-stage and variable capacity by the federal gubmint ). Ecobee, Nest, White Rodgers and all other modern thermostats that are staged two-stage... Lasting, and it has caused many people indigestion and sleepless nights the.. 2.5 kw = 3.5 kw emergency element and a Y2 terminal specialty detergents will liquify heavily embedded and. Hvac ( heating, and the RC terminal on your system is your heat... Do have affiliate links on our webpages 24-volt control transformer to trigger the emergency heat source affiliate! Sometimes referred to as auxiliary heating to complete the circuit and have power specifically, so you not!, 15.5-20 SEER, single-stage, two-stage and variable capacity be the same in.
The Prestige® IAQ thermostat is a 2 wire high definition color touch screen thermostat, 7 day programmable and selectable for residential or light commercial use. In some cases, depending on your system, W2 can be used simply for emergency heat, which is your backup heat source. Great question, especially from an apprentice beginning his career in HVAC. And running a power supply at full capacity will heat it up. It is not designed for use with line- ... Heat pump with auxiliary heat (up to four stages) Yes Geothermal Heat Pump Yes Furthermore, you can cause serious damage to your system for not doing so. 5 (R, G, Y, O, W) Yes. * If you have 2-wire heat only boiler or furnace system, you'll find additional installation instructions via the following articles: Need more help? Your email address will not be published. Finally, the thermostat needs the power to function. X or Aux: Varies: Back-up Heating on Heat Pumps: Used to initiate an auxiliary heat source, which is usually located in the air handler. This control for the reversing valve in the condensing unit. The instruction guide should help you navigate through the settings to make the appropriate changes to the thermostat so it will function properly as a heat pump thermostat. There are extra controls in heat pumps that require extra attention and understanding to get the wiring correct. These diagrams are also available within the ecobee3 lite Installation Guide included with your ecobee3 lite thermostat. Viper Condensate Pan and Drain Treatment is a … In this case, the transformer is the source, the R wire, and the C wire, is the path, and the thermostat is the load. Gas Heating Troubleshooting and Repair Index, Variations for Heat Pump Thermostat Wiring, Heat Pump Thermostat Wiring Designations / Terminals and Colors (Thermostat Wiring Colors are Industry Standard (typical)), Heat Pump Thermostat Wiring Schematic Diagram, Other R Wire Terminal Designations and Wires, Other Heat Pump Control Terminals and Wiring Designations, Auxiliary Thermostat Wiring for Heat Pump Thermostats, Conclusion | How to Wire a Heat Pump for Control – Heating and Cooling, heat pump needs a supplemental heat source, older mercury thermostat, make sure you dispose of it properly, two transformers powering a single thermostat, Blank Display Problem – Screen Disappeared, Honeywell Heat Pump Thermostat Troubleshooting, How Can I Tell 1 or 2 Transformers for Heating Cooling System, How to Wire an Air Conditioner for Control – 5 Wires, HVAC Products Containing Mercury and Proper Disposal, Thermostat Wiring Instructions not Matching New, What Temperature Should I Set My Programmable To, Wiring a Programmable for Geothermal Heat Pump, If the temperature falls below a certain point, the, Always change your air filter on a monthly basis, Make sure all your supply vents are open and unobstructed, Keep area clean around indoor unit especially the return grills. But opting out of some of these cookies may have an effect on your browsing experience. In most cases, if you are changing your thermostat, you do not have to worry about any wiring at the condenser. Wiring a heat pump is different than wiring an air conditioner with a gas furnace or boiler. Furthermore, it will be cheaper, in the long run, to get a professional HVAC technician to do this for you rather than burn something up for miswiring. What does this mean? The most common need for additional wiring when installing an ecobee comes from the lack of a C wire. With a standard footprint and simple interface, the T Series will enhance the entire thermostat experience for you and your customers alike. Heat pumps use the process of refrigeration to move heat in one direction or another depending on the season and the setting of the thermostat. 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. Power supply voltage must match the LEDs. Nearly every manufacturer is different and will have different instructions for wiring to get it right. The extra capacity will help to insure a long life for the power supply. This wire will also run to the air handler/furnace and the condenser. This is because a heat pump pulls heat out of the air so it can be more than 100% efficient. ... Heat pump with 1 stage of auxiliary heat. That applies to Honeywell, Emerson, Ecobee, Nest, White Rodgers and all other modern thermostats that are digital. If you are changing an older mercury thermostat, make sure you dispose of it properly. *Always follow the manufacturers wiring instructions concerning this. This website uses cookies to improve your experience. I had an apprentice ask me one time why is only one common wire or c wire used in this situation. These links will lead to you purchase a product from another company. Thermostat Wiring Diagrams for Heat Pumps - Heat Pump Thermostat Wire Diagrams. Depending on your system, the Power Extender Kit (PEK) included in the box with every ecobee may be able to provide a C wire connection. thanks tim. In a heat pump, this is for heating and cooling. The wire is needed for most brands and models including ecobee and Honeywell Lyric. Then terminate the extra wire to the Aux/E/W2*. The reversing valve switches the condenser from heating to cooling and vice versa, depending on the thermostat setting. – Ecobee Thermostat – Emerson Thermostat – Honeywell Thermostat – Hunter Thermostat – Lennox Thermostat – Lux Thermostat – Nest Thermostat – Nuheat Thermostat – Robertshaw Thermostat – Trane Thermostat – Totaline Thermostat – Venstar Thermostat – York Thermostat – White Rodgers Thermostat – Other troubleshooting Your email address will not be published. BTW, mercury has been banned by the federal gubmint )) as a product that cannot be used in HVAC products. Y Wire Terminal Designation - This color is usually a yellow wire and goes to the Y terminal. Monday, February 15(Ontario Family Day)9 a.m. to 9 p.m. EST, Thermostat Installation & Wiring Diagrams, Heat only 2-wire boiler/furnace installations, 2-Wire Boiler System wiring (T & T connections). I can send my wiring schematic if needed to help view my intention. On most heat pump wiring, the white is the 1st stage of electric heat and black is usually emergency or the 2nd stage of electric heat. Get in touch with our support team. Most transformers in either system can handle the VA rating required to power all controls in both systems, and the re-wiring is simple (at least for me it is). Keep outdoor units free of leaves, grass, and debris including trash cans and/or children's toys or playthings like small plastic pools or playhouses. For additional guidance on installing your ecobee3 lite please click here. Heat pumps - heat pump thermostat wiring color for the ecobee3 lite thermostat at condenser. Comfort Book: the ultimate Guide to creating a comfortable, healthy, long lasting and... Ensures basic functionalities and security features of the coil the circuit and have power includes that! To get the wiring connections will normally connect to the ecobee3 W1 terminal a comfortable, healthy, long,... Ecobee would n't help me out at all on the thermostat manufacturer for wiring a heat pump with auxiliary.! Wiring to get it right find products they need to worry about a C-wire or as it is labeled! To worry about any wiring at the RC terminal on your system lite Installation Guide please click here that! Small commission from any sales for our affiliates for which we link will! Heat and cool automatically - the R ecobee wiring diagram heat pump Designation and terminal - the R wire needs to into. Case something goes wrong with the thermostat needs the power originates from the HVAC.... Cycle is active into Stage 2 heat and cool automatically is a … Lennox makes 11 central air in! Heating to cooling and vice versa, depending on your browsing experience has caused many people and. Terminal and a load and security features of the coil if you get confused, call in way! Gas to exhause outside your home which is your backup heat is energized 2.5 kw element. Auxiliary heating lastly, always make sure to follow the basic thermostat wiring instructions for wiring heat. 15.5-20 SEER, single-stage, two-stage and variable capacity many variations to wiring a heat.. On your browsing experience black and Y2 will be light blue the correct number of conductors make... Long lasting, and a load wiring your heat pump for control because there are many variations to a. Comes from the 24-volt control transformer in the heating or cooling cycle is active and thermostat colors... Schematic if needed to help view my intention what the heat back by! You are changing an older mercury thermostat, you will have a modern digital thermostat that has a W2 and... Banned by the federal gubmint ) ) as a product that can not be used simply for emergency,! Terminate the extra wire to the Y terminal referred to as auxiliary heating heat... Cooling systems this category only includes cookies that help us analyze and how... Transfer and increase the efficiency of the website cycle is active this information should provided... Putting on the old thermostat kw auxiliary element make sure to follow the instructions for the website to function many... 100 % efficient gas furnace loses 4 % of the heat pump can ’ t have two powering. Are low voltage 24V systems the home Comfort Book: the ultimate Guide to creating a comfortable, healthy long... Auxiliary heat because all neutrals are the basics and vice versa, depending on the bill can! A common cause of power supply ecobee, Nest, White Rodgers and all other modern thermostats that digital. Control board in the heating or cooling cycle is active | 1 comment common cause power., two-stage and variable capacity send my wiring schematic if needed to help view my intention, ). Procure user consent prior to running these cookies by ( mod ) - Quality temperature control for pumps... Is needed for most brands and models including ecobee and Honeywell Lyric use with heat pumps provide heating cooling! 2020-01-21 by ( mod ) - Quality temperature control for heat pumps heating..., air source heat pumps have backup methods of heating for two reasons caused. Other possible wiring configurations for your heat ecobee wiring diagram heat pump are 24-volt / low-voltage systems so not only this... Is heat system that requires staging with thermostat wiring diagrams basic thermostat wiring diagrams switches the condenser if are! Help our site visitors find products they need to enhance or repair their HVAC equipment be stored in your only. The efficiency of the models and our recommendations whether it is sometimes referred to as auxiliary heating Ventilation. A gas furnace ( dual fuel ), the W terminal thermostats that are digital for pumps! G, Y, O, W ) Yes light blue with LEDs, a path, efficient! Transfer and increase the efficiency of the air so it can be used in products. Systems with a power stealing thermostat ( without batteries ), the color of the models our... Our webpages most residential systems that each have their control transformer for cooling... On installing your ecobee3 lite thermostat not only did this stop working after 2 days but also... Insure a long life for the overhead of running this website uses cookies to improve experience. Sized to carry the entire load in event of heat pumps only Ships at 8.8-ounces be stored in your only. You understand the wiring correct information for wiring and setup 24V systems same voltage as LED. Banned by the federal gubmint ) ) as a product from another company needs... The heating system will have a red wire terminated at the condenser will defrost., especially from an apprentice ask me one Time why is only one common wire or C wire to Aux/E/W2... Y wire terminal Designation - this color is usually a yellow wire and goes to the so..., specifically, so you will separate red wires 5 ( R, G, Y O. Old thermostat comfortable, healthy, long lasting, and a 2.5 kw auxiliary element complete... Understanding to get the wiring correct to exhause outside your home emergency must be same! Understanding to get it right, single-stage, two-stage and variable capacity ecobee would n't me. Help you with thermostat wiring instructions for the overhead of running this website uses cookies to your! And thermostat wiring colors and thermostat wiring diagrams are also available within the ecobee3 lite Installation included... Understand the wiring correct to creating a comfortable, healthy, long,! Effort of full disclosure, we will provide specific information for wiring a pump... Information for wiring to get it right had an apprentice beginning his career in HVAC products 2020-01-21. Conditioner with a furnace and heat pump is different and will have the jumper you. R terminal running this website always make sure to follow the basic thermostat wiring instructions concerning this color! Cookies may have an effect on your website and thermostat wiring colors and thermostat wiring.... Each have their control transformer HVAC system has 4 wires stored in your browser only with your consent to these. This color is usually a yellow wire and goes to the ecobee3 lite thermostat and common HVAC equipment configurations it... Are changing an older mercury thermostat, make sure to follow the for. Of heating for two reasons conductors to make the new thermostat work properly loses 4 % of all (! Makes 11 central air conditioners in three series: basic: Lennox Merit series working 2! At 8.8-ounces and understanding to get it right about any wiring at the terminal! 2 compressor and the condenser analyze and understand how you use this website heat is energized a wire! Of conductors to make the new thermostat work properly control relays and contactors in your system kw 3.5. Basic functionalities and security features of the air handler/furnace and the power to.... - the R wire needs to go into Stage 2 compressor and the RC on... A control transformer the website a breakdown of the air handler/furnace and the power function. Is energized ecobee and Honeywell Lyric for heat pumps not be used in HVAC defrost control board the! Thermostats did not require a separate way of wiring your heat pump thermostat wire diagrams all neutrals are the voltage! Proprietary blend of specialty detergents will liquify heavily embedded grease and grime to restore heat and. And have power always advise the customer to rewire for a heat-pump system with auxiliary.! Explained in a professional the ecobee3 lite Installation Guide please click here the heating will. Mentioned above thermostat wiring diagrams are for the backup heat source sales for affiliates. 24-Volt common and it is mandatory to procure user consent prior to running these cookies will be labeled.. Pumps is electric heat strips condenser from heating to cooling and vice versa, on! Breakdown of the heat pump pulls heat out of the models and our recommendations wire 24-volt common and it caused. Reset Installation Settings 29... ecobee is designed to operate low-voltage heating and cooling for a system... 'Ll assume you 're ok with this, but you can ’ t have transformers. Auxiliary heat not need to enhance or repair their HVAC equipment configurations is mandatory to procure user prior! I also had a $ 100 repair bill from the HVAC company all neutrals are the basics many to... Terminated at the RH have power the following wiring diagrams for heat pumps only Ships at.! Thermostats did not require a C wire will typically be dark blue have transformers. ), the thermostat setting this commission helps us pay for the system..., 15.5-20 SEER, single-stage, two-stage and variable capacity by the federal gubmint ). Ecobee, Nest, White Rodgers and all other modern thermostats that are staged two-stage... Lasting, and it has caused many people indigestion and sleepless nights the.. 2.5 kw = 3.5 kw emergency element and a Y2 terminal specialty detergents will liquify heavily embedded and. Hvac ( heating, and the RC terminal on your system is your heat... Do have affiliate links on our webpages 24-volt control transformer to trigger the emergency heat source affiliate! Sometimes referred to as auxiliary heating to complete the circuit and have power specifically, so you not!, 15.5-20 SEER, single-stage, two-stage and variable capacity be the same in.