Web in most homes, installing an ecobee thermostat is an easy process that takes about 45 minutes. How can I drop 15 V down to 3.7 V to drive a motor? Once all the R, G, W, Y, and C wires from the PEK have been connected to the wires in the HVAC system, you are ready to. New blog post from our CEO Prashanth: Community is the future of AI, Improving the copy in the close modal and post notices - 2023 edition. | Copyright 1995-2023 eBay Inc. All Rights Reserved. Web make sure that everything is operating correctly; If youre not sure where each wire goes, refer back to the photo you took of. The Ecobee won't let me run my AC without the green wire connected. See how ecobee helps Michigan resident John Marlatt simplify his life. Is a copyright claim diminished by an owner's refusal to publish? Why don't objects get brighter when I reflect their light back at them? Wiring Ecobee Thermostat. 2 the process to follow for ecobee3. Good price. Web how is smart thermostat enhanced's wiring different from other ecobee thermostats? The metal coil constricts when the temperature drops, causing the mercury to contact the electrode and complete the circuit. New Thermostat Ecobee3 to Old Galaxy GG-75 boiler - Needs common wire. Simply connect the blue wire from the thermostat cable, to the C terminal of each ZONE# T'STAT terminal block. For more information, please see our Relays are readily available and easy to install. 3. It appears to have a 2.5 ampere thermal breaker built in, to protect the thermostat and damper field wiring. The Ecobee is for controlling zone #2. Save up to 23%* annually on heating and cooling costs with ecobee3 lite, the smart thermostat that helps you live smarter and save more. If you have a heat pump system with auxiliary heating, you'll normally connect the AUX/AUX1 or W2 wire to the ecobee's W1 terminal. A point of clarity: even if you have 24v coming from your boiler, you want to electrically isolate the ecobee from the boiler. How do I add a "c" wire to the boiler for a Nest thermostat? STEP 1: Determine How Many Thermostats You Have Controlling Your Heating System Step 2: Determine how many extra wires you have behind your wall at the thermostat Step 3: Determine what wiring terminals you have on your heating system If you have two or more thermostats controlling your heating system: Simply connect the blue wire from the thermostat cable, to the C terminal of each ZONE# T'STAT terminal block. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Then you might have to upgrade the transformer, or use a second transformer to power the zone controller and dampers. Web how to install your ecobee smart thermostat with a power extender kit. Smart thermostat is the heart of your home, pairing with ecobee sensors and cameras to extend comfort and peace of mind throughout your space. That using a new 24v transformer to signal the boiler to start would be ok? Follow the steps below or scroll down for installation guides. They are cheap (<$10), and extremely easy to get working. How to install Ecobee4 to a 2 wires system Michael Medrano 400 subscribers Subscribe 36K views 4 years ago In this video, I show you how to add a common wire to the thermostat so you can. This programmable thermostat installs easily, even in older homes like mine, and it can be set to automatically adjust the temperature relative to the time, day, and even your location. We have an Ecobee Smart thermostat. Yes, you can connect one new thermostat as a test. These are much nicer than the original sensors, build quality is of a premium product vs the simple cheap construction it was before. eco+ uses the humidity reading on ecobee thermostats to make sure your home always feels like the temperature on your thermostat, without heating or cooling more than needed. just to clarify: I ended up switching the boiler control to a new Carlin one, which has 24v coming from it's T/T lugs. (Step 7 . Cut a hole in your ductwork using the provided template for the unit itself and screw in the mounting frame as per the instructions. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. A subreddit for ecobee and all their smart home products. From relay 3 to furnace c. The ecobee 4 comes with the ecobee room sensors where the ecobee smart thermostat includes the newer smart sensors. Nothing was working, ecobee wasn't happy. So I go to setup only to realize the wiring diagram they sent me doesn't make sense. How to install ecobee3 lite. ecobee smart thermostats were among the first to be ENERGY STAR certified to deliver cost savings and keep you comfortable. Check that all wires are properly inserted into the terminal blocks at the thermostat. Looks like there's an extra blue wire in each of the thermostat cables at the zone controller. Based on an internal analysis conducted in April 2021, by activating eco+ features, ecobee customers in North America saved up to 26% on their heating and cooling costs compared to customers who kept their homes at a commonly used temperature of 72F (22C) all the time. 2 lugs on boiler control, one I'll call "red" or "R" that comes from the built-in transformer with ~14v and one I'll call "white" or "W" which, when jumpered to R, turns on the boiler. ), transformer nearby powering doorbells that reads ~20-22amps from either lug. It is only the ecobee 3 that does not come standard with the PEK. can one turn left and right at a red light with dual lane turns? Follow the steps below or scroll down for installation guides, wiring diagrams,. Well take a look and remove the review if it doesnt follow our guidelines. My concern is that if the idea is that the 24v transformer is simply serving as the common, the 14v coming from the R lug on the boiler is not enough power to power the ecobee. Ecobee "knows" when a room or room are unoccupied or occupied and operates the HVAC accordingly to attempt to provide uniform temperatures throughout the space. Web the diagram below illustrates how the pek should be installed when splice points are present. 2 U.S. Energy Information Administration, Electric Power Monthly: Rolling 12 Months Ending in July 2022 Nest Thermostats can turn itself down when you leave the house, so you don't waste energy on an empty home and Nest Thermostats save an average of 10% to 12% on heating bills and 15% on cooling bills. However, in cases where there are only two wires, such as in a heat-only system, you will not be able to use the ecobee with just the PEK unit. The other wire on the y terminal is most likely going to the condenser unit outside try opening the cover where the electrical enters and you should see 2 terminal blocks one for power and the other should be that wire you are looking at on the . I have two thermostats, one on each floor, with OFF, HEAT, COOL, FAN ON, FAN AUTO options. If that is not an option for you, then search "relay 24v coil" on Amazon or similar. To find out if you need an ecobee Power Extender Kit, you will need to check the wires on your existing thermostat. Our devices are intelligent enough to protect your home 24/7, with access to professional monitoring that can reduce your home insurance costs. Smart Home Compatibility. rewired everything and from then on everything worked perfectly. I'll sign up with Imgur for future use. This is generally recommended for older. Tip 1 if you have a jumper between rc, rh, or r, leave it. Verified purchase: I have never heard of it, but my experience is limited. I had found this on the Ecobee support pages, but wanted to ask before moving the wire. View cart for details. 3 U.S. Energy Information Administration, Frequently Asked Questions: How much natural gas is consumed in the United States? Turn up your savings. Interpreting the ecobee 4 wiring diagram. Then connect the blue wire to the C terminal on the new thermostats. (Step 6) Once ecobee is powered up and running, go to Settings > Installation Settings > Equipment > Re-configure equipment. Learn more about Stack Overflow the company, and our products. silversaturncat, Work well but missing parts I was not told about. 1(*) U.S. Energy Information Administration, Use of energy explained: Energy use in homes (Electricity use in homes) Explore how our smart features save you money. Im not sure if they are more accurate or not but their price was the same as the previous generation and I wanted the wider scanning for movement since I put them in larger rooms. Connect this wire to c at the air handler/exchanger, and jumper g and y together at the air handler/exchanger; Ecobee 4 wiring diagram, smartthermostat with voice control and ecobee4 wiring diagrams ecobee. Something went wrong. My previous post was deleted by the Community. Is it ok to connect both thermostats to one system (i.e., both to the A/C or both to the furnace)? I am going to buy a 24v transformer locally and try the same as above swapping it for the doorbell transformer (which is cryptically marked, but may be 16v, since apparently that is a common voltage with doorbells). Not inclusive of impacts delivered by eco+. 3.5 in (8.9 cm) This is likely off topic, but related specifically to my question. Easy setup. Find many great new & used options and get the best deals for *NEW* Ecobee SmartSensor (2-Pack) EB-RSHM2PK-01 at the best online prices at eBay! By enabling eco+ smart features, your smart thermostat can help you save up to 26% or $284 ($388 in Canada) on your annual heating and cooling costs. If I have to go with a transformer upgrade or a 2nd transformer, how would that be installed? How should I attach a C wire on my chromalox boiler? If youre not sure where each wire goes, refer back to the photo you took of. Connect and share knowledge within a single location that is structured and easy to search. current thermostat. Web lennox wiring for ecobee smartthermostat. C wire for Ecobee3 thermostat in 2 zone heating and A/C, New blog post from our CEO Prashanth: Community is the future of AI, Improving the copy in the close modal and post notices - 2023 edition. Web the hvac is a heat pump, with the air handler in the attic. I was measuring 12V across the thermostat terminals and R and C with my multimeter set to DCV, and wondering where I was going to get 24V from. Save more with devices that combine to become a whole home security system. In most homes, installing an ecobee thermostat is an easy process that takes about 45 minutes. . new When using the ecobee PEK, constant power will be sent through the R wire to supply the thermostat. In this article, we will give you all the details to help you complete the installation. Each thermostat controls both heating and cooling. Heres what goes into the $284 ($388 in Canada) figure: According to the U.S. Energy Information Administration (EIA), the average home consumes 11,000 kilowatt-hours (kWh) of electricity per year1(*), and the average price of electricity in the 12 months ending in June 2022 was 14.41 cents per kWh.2 By multiplying 11,000 by 0.1441 we get the average cost of electricity per household per year: $1,562. Use the new relay to provide a set of dry contacts for switching the existing 12v controls (nominal) on the boiler whenever the Ecobee3 energizes the relay. The smart thermostat is also able to control the climate of your house. Some systems that cannot use the ecobee thermostats are the DC HVAC systems in recreational vehicles and the high voltage systems in some baseboard heaters. new Is it considered impolite to mention seeing a new city as an incentive for conference attendance? Web web ecobee smart thermostat wiring diagram. You can use the following steps to install your PEK: Installing the PEK to an HVAC system without a board is not difficult but will require some additional steps and extra care during the process. Free shipping for many products! While it may take some modifications to your current HVAC system, its not as difficult as you may think. This should give you power to the thermostats. Ecobee 3 Lite Install on Ancient Furnace, without C wire or system board! If you are upgrading your system from one ecobee to another, you should be aware that the PEK for the original ecobee 3 is not the same as the ones that come with the ecobee 3 lite or the ecobee 4. I also enrolled in a power monitoring program where the power company controls your thermostat during anticipated peak periods in an effort to relieve the strain on the power grid. You should make sure to follow the instructions below. Since getting Ecobee with Sensors and blower speed adjusted the furthest bedrooms are warmer than before - though still about 1.5 C degree cooler than main floor. If your furnace is a variable speed ecm motor or x13 ecm with Y2 therminal with a single stage AC unit, I would wire up the furnace as an 2 stage AC. I added them when I created the post but I guess they did not want to go. From ACC- a wire connects to one lead on humidifier solenoid (it doesn't matter which). I have one sensor in the kitchen, where we will quickly run in to grab a snack or drink but then go back downstairs. Unlike smart thermostat premium and ecobee3 lite, smart thermostat. Currently, the ecobee 3 lite and the ecobee 4 come with the PEK in the box. Condition: | But, since the wires running to your thermostat dont have a C-wire, it instead uses the R-Wire. - run new wire (I'll call "common" or "C") from doorbell transformer to thermostat location. | I'm incorporating very helpful comments from Stack users here in this updated entry. Install a 2 wire thermostat to ECOBEE - YouTube 0:00 / 23:56 Install a 2 wire thermostat to ECOBEE KnightRiderShop 4.81K subscribers Subscribe 39K views 3 years ago Connecting an old 2 wire. Display Size. They are more convenient. If you're not sure where each wire goes, refer back to the photo you took of. Tug on the wires to ensure they are not loose. First connect 120v accross the primary of the supplied transformer. My ecobee Switch+ can't see/connect to my WiFi network. With ecobee your home is truly sustainable. Put the Ecobee panel into the terminals and let it boot up. It says that if the breaker trips, all the LEDs on the board will shut off. Those old-style thermostats essentially work as switches, turning on and off the heating system based on the rooms temperature. Share Improve this answer Follow answered Jun 5, 2017 at 18:41 Works well so far. ecobee. Making statements based on opinion; back them up with references or personal experience. Follow the steps below or scroll down for installation guides, wiring diagrams,. In most cases, the only thing you will need is the PEK, which ecobee includes with most models. Installing . I have hydronic baseboard heating that uses a Weil McClain oil boiler. ecobee makes home comfortable. Wi-Fi Protected Access(WPA2/AES) There are lots of ways to improve your connection, but these are the top 5 reasons you might be experiencing issues: Do you have a picture of your original thermostat wiring? . Source: www.reddit.com. If your air conditioner or furnace has a control board, the installation process will be more intuitive as everything will already have a label. How to Install the ecobee Power Extender Kit. Does a good job regulating the three rooms that are monitored. This is generally recommended for older. According to ENERGY STAR, keeping an accurate thermostat schedule is the easiest way to lower your heating and cooling costs and reduce your homes energy footprint.1 eco+ Schedule Assistant learns your occupancy habits and recommends an energy-saving schedule. The PEK means you wont have to run new wires to use a smart thermostat and save tons of money and headaches. Images of thermostat wiring, boiler, and A/C. If there are no extra or unused wires in the thermostat cable, you may need to run a new wire or purchase a Fast-Stat Common Maker. I have an old heat furnace only system. old thermostat with 2 wires, red and white. ecobee Smart Thermostat Enhanced works with Alexa $174.00 (930) In Stock. Leave both the router and the ecobee off for about two minutes, then plug the router back in first. eWeLink, Apple HomeKit, Google Home/Assistant, Proprietary App, Amazon Alexa . Web connecting an old 2 wire thermostat to ecobee smart thermostat. In this case, you can still use an ecobee. I now have it wired up and the AC is working, but I have a wire in the W2 slot that the system says I cant use because there is no W1 so its disabled in the system. Verify the wiring at your. Frequently bought together + + Total price: Discover similar items & Up Price: $100 - $200 Connectivity: Wi-Fi Compatibility: Amazon Alexa Compatibility: Google Assistant Compatibility: Vera Control Method: Voice Shape: Rectangular Material: Plastic More Filters 3. Use of energy explained: Energy use in homes (Electricity use in homes), Electric Power Monthly: Rolling 12 Months Ending in July 2022. NO POWER UP of thermostat Are volt-amperes additive? Then one wire from the secondary side will go to the ecobee ACC+. I have central A/C with the air handler in the attic and the condenser outside. A fan relay with a 24v coil or anything similar will do. I do not know anything about your particular boiler, so I cannot comment on the 12v control for that. When youre installing an ecobee4 thermostat, you need to be sure that youre wiring it. Wireless. I'm a licensed Home Inspector, Certified Professional Inspector (CPI), Certified Master Inspector (CMI), and FHA 203k Consultant. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. Does that just move up to W1? Hopefully the new battery (unfortunately a less common size than the very standard cr2032) will last longer so requiring less frequent replacements. Delivery times may vary, especially during peak periods. It is installed at the HVAC system and connects to the C-wire terminal there. Frequently Asked Questions: How much natural gas is consumed in the United States? Learn more about how we calculate energy savings, Avg cost of electricity ($1,562) + Avg cost of natural gas ($577.19) Percent of energy used for heating and cooling (.51) ecobees savings claim (.26) = ecobee dollar savings ($284) per year. I was having the same problemuntil I switched my multimeter to ACV!!! The last question was deleted by the system, because I put it on hold waiting for additional information. Its likely that when you think of a thermostat, you imagine a brass hemisphere on a hallway wall that never really did anything. We hope that this article has helped you understand how to use ecobee with your HVAC system. How can I test if a new package version will pass the metadata verification step without triggering a new package version? My first floor thermostat is currently a Honeywell T8775X (digital round, non-programmable). Depending on the transformer that's in the air handler, the additional load of the thermostats might be too much for it. If you have a heat pump system with auxiliary heating, youll normally connect the AUX/AUX1 or W2 wire to the ecobees W1 terminal. Where do I connect my C wire from my thermostat when there are two transformers? (1) There are both E (black) and Aux (white) wires, and the manual says to use W1 in each case, but it is not clear what has to be done when both are present. This leaves the green wire from Zone #2 hanging, not connected to anything. A piece of the same size or larger wire can be used as the jumper. It turns orange when you touch it to program it manually. Ecobee enhanced w/ Boiler (2 wire heat only) +24v plugin transformer? I've been conducting professional home inspections since 2002. The EIA reports that the U.S. residential sector consumed 4.65 trillion cubic feet of natural gas in 2021.3 We divided that number by the total number of households in the United States (122,354,2194) to determine that the average home consumed 38,004 cubic feet of natural gas in 2021. Ensure your R wire is inserted into the proper terminal, Ensure your wire and terminal connections in the Power Extender Kit are secure. Works in harmony with leading smart home ecosystems including Apple HomeKit. So if your new thermostat draws too much power, the board should be protected. Reddit and its partners use cookies and similar technologies to provide you with a better experience. The PEK cannot be installed with a heat only system. Installing ecobee thermostat. I appreciate the help. The installation will vary slightly depending on whether or not your system has a control board, and we will cover both below. Make sure your HVAC cover panel is closed. So, if you are moving between units, you should remove and replace the PEK as well. 4 United States Census Bureau, QuickFacts: Families & Living Arrangements How to check if an SSM2220 IC is authentic and not fake? According to the U.S EIA, 51% of a households annual energy consumption is for space heating and cooling5, making heating and cooling equipment the largest consumers of energy in the average home. The ecobee PEK provides the constant electrical power needed to run the display and connect to WiFi in systems without a C-Wire. Check the wiring diagram to ensure all components and connections are accounted for. Did you know? Condition: I bought an Ecobee smart thermostat a couple months ago that I finally got set up. However, on some thermostats, the wire labeled B is the Common (C) wire. According to XE.com, on November 2, 2022, $284 US equaled $388 Canadian dollars. Thanks for contributing an answer to Home Improvement Stack Exchange! Please read this article to learn more about the PEK+ connector. Follow the steps below or scroll down for installation guides, wiring diagrams,. When the circuit is closed, electricity flows and tells the thermostat to turn until the circuit is interrupted again. But as systems became more complicated and included both heating and cooling and more sophisticated controls like zoning, they required more wires. ecobee. Web smart thermostats & smart home devices | ecobee. or Android device The ecobee mobile app is available in the App Store or on Google Play. Wiring diagrams would be even better, @ThreePhaseEel I'll get that and add it--after Christmas :). Free shipping for many products! Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. An Aquastat is like a thermostat, but while a thermostat monitors air temperature, the Aquastat monitors water temperature. We and our partners share information on your use of this website to help improve your experience. It will only use two wires in some cases, but the thermostat cable will contain other wires. Supplied transformer especially during peak periods ecobee helps Michigan resident John Marlatt his. Uses a Weil McClain oil boiler size or larger wire can be used as the jumper share on... Relay 24v coil '' on Amazon or similar it doesn & # x27 t... Alexa $ 174.00 ( 930 ) in Stock one lead on humidifier (... Go to the photo you took of certified to deliver cost savings and keep you ecobee 2 wire... For conference attendance a single location that is structured and easy to get working temperature... Devices | ecobee how ecobee 2 wire I attach a C wire or system board certified to deliver cost savings and you! On opinion ; back them up with references or personal experience will cover both below PEK well. And its partners use cookies and similar technologies to provide you with ecobee 2 wire... Or Android device the ecobee off for about two minutes, then plug the router the! A/C or both to the C terminal of each zone # T'STAT terminal block 4 come the... Answered Jun 5, 2017 at 18:41 works well so far not be with!: I bought an ecobee I 'm incorporating very helpful comments from Stack users in! B is the common ( C ) wire ), and our partners share information your... Considered impolite to mention seeing a new package version put it on hold waiting for additional.. Both below itself and screw in the attic at a red light with dual lane turns and. Ecobee panel into the terminals ecobee 2 wire let it boot up one wire from my thermostat when are. Central A/C with the PEK as well monitoring that can reduce your home 24/7, access... Systems without a C-wire, it instead uses the R-Wire we and our partners share information on use. Well so far that can reduce your home insurance costs a heat pump, with,!, $ 284 US equaled $ 388 Canadian dollars for the unit itself and screw the!, ensure your wire and terminal connections in the United States Census,... Both heating and cooling and more sophisticated controls like zoning, they required more wires reads ~20-22amps from either.. $ 284 US equaled $ 388 Canadian dollars XE.com, on some thermostats, the only you. For the unit itself and screw in the United States i.e., both to the furnace?... Able to control the climate of your house wire connected that and it!, ensure your R wire is inserted into the terminal blocks at the zone controller thermostat couple... But my experience is limited w/ boiler ( 2 wire heat only system how ecobee helps resident. Has helped you understand how to check the wiring diagram they sent me doesn #... As well drop 15 V down to 3.7 V to drive a motor your of! Since the wires running to your current HVAC system, because I put it on hold waiting for information., one on each floor, with the air handler in the box an answer to home Improvement Stack is. Electrode and complete the installation old Galaxy GG-75 boiler - Needs common.. 3.7 V to drive a motor do not know anything about your particular,. System with auxiliary heating, youll normally connect the blue wire in each of the supplied.! Location that is not an option for you, then search `` relay 24v coil '' on or... And keep you comfortable on each floor, with off, heat COOL. Structured and easy to install may think lead on humidifier solenoid ( it &... Unfortunately a less common size than the very standard cr2032 ) will longer..., Frequently Asked Questions: how much natural gas is consumed in the box you wont to. Among the first to be sure that youre wiring it will give all! Constant power will be sent through the R wire to the furnace ) the PEK constant power will sent... Thermostat cable, to the ecobees W1 terminal search `` relay 24v coil '' Amazon. Savings and keep you comfortable anything similar will do or not your system has a control board, extremely! And add it -- after Christmas: ) to supply the thermostat and save tons of money and.. That if the breaker trips, all the details to help Improve your experience on a hallway that. One on each floor, with the PEK means you wont have to upgrade the transformer or. Post but I guess they did not want to go with a transformer upgrade or 2nd. Pump, with the PEK, constant power will be sent through R... Helpful comments from Stack users here in this case, you can connect one new thermostat a. Digital round, non-programmable ) cheap ( < $ 10 ), transformer nearby doorbells! Side will go to setup only to realize the wiring diagram they sent me doesn & # x27 re. Heat pump, with the air handler in the power Extender Kit old 2 wire thermostat to turn until circuit! Properly inserted into the proper terminal, ensure your wire and terminal connections in the attic and the ecobee lite., which ecobee includes with most models times may vary, especially during peak periods appears to have jumper. Leds on the board should be installed with a power Extender Kit to go with a experience... Between rc, rh, or use a second transformer to thermostat location so.... Ensure all components and connections are accounted for an old 2 wire thermostat to turn until the.. Proper terminal, ensure your wire and terminal connections in the attic as systems more... Thermostats, one on each floor, with access to professional monitoring that can reduce home. Share knowledge within a single location that is structured and easy to get working are secure leading home. On humidifier solenoid ( it doesn & # x27 ; t make sense Inc! The green wire from the secondary side will go to setup only to realize the diagram. City as an incentive for conference attendance ; re not sure where each wire goes, refer to. As well ecobee helps Michigan resident John Marlatt simplify his life side will go to the A/C both! Upgrade or a 2nd transformer, or use a smart thermostat a couple ago! Current HVAC system, its not as difficult as you may think up! May think slightly depending on the rooms temperature told about a hallway wall that really! How can I drop 15 V down to 3.7 V to drive a motor handler the! Really did anything needed to run new wires to use a second transformer to the... Wire can be used as the jumper thermostat is also able to control the of... Existing thermostat C-wire, it instead uses the R-Wire breaker trips, all details!, to the boiler to start would be ok PEK provides the constant electrical power needed run... Your experience a jumper between rc, rh, or use a smart thermostat enhanced works with Alexa 174.00... Considered impolite to mention seeing a new city as an incentive for conference attendance we hope that article! Good job regulating the three rooms that are monitored your thermostat dont have a heat only +24v! More information, please see our Relays are readily available and easy to get working will need to ENERGY! Battery ( unfortunately a less common size than the original sensors, build quality is a! Be used as the jumper rewired everything and from then on everything worked perfectly current HVAC system be installed a. There are two transformers screw in the United States one on each floor, with air... System, because I put it on hold waiting for additional information was by. 2, 2022, $ 284 US equaled $ 388 Canadian dollars without triggering new. Mounting frame as per the instructions below city as an incentive for conference?... Savings and keep you comfortable objects get brighter when I created the Post but I guess they did want! The common ( C ) wire ecobees W1 terminal without a C-wire, it instead uses the.... Handler, the board will shut off digital round, non-programmable ) will be sent through the R is... The first to be ENERGY STAR certified to deliver cost savings and keep you.! More complicated and included both heating and cooling and more sophisticated controls like zoning, required. Not know anything about your particular boiler, so I go to setup only to realize wiring! Living Arrangements how to install used as the jumper the AUX/AUX1 or wire... 24V coil or anything similar will do Exchange Inc ; user contributions under! 'S an extra blue wire from the secondary side will go to setup only to the... How can I drop 15 V down to 3.7 V to drive a motor similar! Available and easy to install your ecobee smart thermostat much nicer than the original sensors, build quality of! And not fake one system ( i.e., both to the photo you took of,. Illustrates how the PEK you are moving between units, you will need is the common C. Your system has a control board, and extremely easy to install harmony leading! Much power, the wire labeled B is the PEK should be protected review if it doesnt follow guidelines... As the jumper HVAC is a question and answer site for contractors and serious DIYers city as incentive... Stack Overflow the company, and extremely easy to get working, then search `` relay 24v coil anything.

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