how to change fan speed on a trane furnace how to change fan speed on a trane furnace

They have a built in or attached capacitor that will allow the motor to turn on, turn off and run at a constant speed when running. The automatic feature rarely kicks in once at set point. Thanks for the reply. My heat is running cold! charts are usually found on the air handler inside door to controls. Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? Sometimes less cmf will give the air more time in the heat exchanger thus letting it get hotter. This video is to show how you can figure out the blower speed setup in your HVAC system, and what you can do do adjust said speeds. One of these wires will be coming from the thermostat and the other will go to the outside unit. Here's the sequence: Furnace gets call for heat. Make sure power is off when doing any adjustment. I'm not sure exactly the formula I'd use to normalize the results, but I'm pretty confident I could come up with some correlation if I had the data to play with. No: you will not save on gas/oil costs by running your blower on low. There are several tutorials on Youtube about how to do this step for specific inducer motor brands. H.R. The main difference is that the fan ON setting means that the fan is set to run as long as the furnace is switched ON. Example: Rated Btu Input = 60,000 / 10,000 = 6 x 150 = 900 cfm of required furnace airflow. Dave. ago. A MERV rating speaks to the filters ability to capture large particles. The air handler houses the fan and fan motor and is usually located in the basement or attic. Also, if you are looking for a video to better help understand this topic, check out our "Adjusting HVAC Blower Speed CFM on Furnace & AC Units!" For instance, here's the procedure to change a furnace's fan speed with a PSC blower motor: Use a multimeter to measure the resistances of each speed wire. The only alternative is to raise the discharge temperature. I needed to go the opposite direction and increase fan speed. Especially with a high efficiency furnace, however, it may be that the decreased electric bill saves enough to offset the "loss up the flue" not sure. 3.5 x 400 = 1400 CFM. Click On under Emergency Heat. low would be 350 CFMs/ton, medium 400 CFMs/ton, high 450 CFMs/ton. Usually there will be three "speeds" ranging from 40 to 100% of airflow. Each is associated with a different blower speed. But, in looking up the manual for this furnace (TUD1B100A9361), it looks like there are 4 blower speeds. Only swap these two wires. There are often five wire colors coming from your blower to your IFC. Changing your HVAC and furnace air filter is a vital part of home maintenance. The low pitched whine stops when fan is in high speed. Typical setups include these wire colors with associated blower speeds. Therefore for anybody thinking to adjust their blower speed to a low setting be mindful and use caution and listen carefully as to how the system is running. According to the company, the slower circulation speed reduces energy consumption by 75%. I hope this helps you understand how to adjust the airflow speed on ECM Blower Motors! I do know that my entire furnace runs safely on a 15amp breaker with the blower on high, the burner running, the humidifier running, and the water pump to empty the humidifier running. Cockroaches and waterbugs coming in through the vents was my big clue there. A 1.5 ton AC unit may not be large enough to cool the . problems contact webmaster@doityourself.com. Third-stage auxiliary heating for heat pumps and multi-stage furnaces. This control board is out of a variable speed furnace with a modulating gas valve that has a variable speed inducer motor. It provides quieter and more even and comfortable heat than a conventional furnace and doesnt consume electricity unnecessarily. 1 to 1.5 hours | Install the new motor, adjust it (multispeed and variable speed blowers only), run and test the furnace Installing a blower wheel with the motor shouldn't affect installation time, since the old wheel typically has to be removed to replace the motor. For business related inquires email us at info@acservicetech.com. A dirty air filter can cause your HVAC system to go into overdrive and result in costly energy bills. If the relay that controls the blower motor fails while it is closed, it will send continuous voltage to the blower motor, causing the motor to run continuously. In his particular case it was "too much volume" of air so I presume just moving air filters isn't enough (typically you'd need to adjust blower level AFAICT). ECM Multi-Speed Blower Motor (Genteq X-13). These two losses comprise the magnitude of heat losses. Stage 2 Aux Heating. Top 10 Spots! I've already had a few HVAC vendors give me some specious arguments about moisture buildup, another even told me he'd "lose his license" if he touched the job. How to change blower speed on furnace - Trane XB 2018 Ryan W 794 subscribers Subscribe 185 44K views 4 years ago A quick description on how to change the blower speed on your furnace. Remove the air handler. #3. They do this by coupling a sophisticated, programmable thermostat to a variable-speed motor. You can change the settings for cfm fan speed, but you have to do it manually at the board. Connect the black wire to the manometer. Be sure to check out our previous article on "Adjusting the Furnace/AC Airflow Speed on a 120v PSC Blower Motor" if you haven't read it yet! In the manual, it lists some settings, e.g. The blower/fan seems to be running way to fast. And I'd guess you're not supposed to push it too close to the limits as things may change slightly over time (filter will get dirtier, blades dirtier). Now that its gotten cold, we've noticed that several of the heat register barely have any air coming out of them. There are only a few steps required for most units and having the control will allow you to get your unit to give you the service you need. The wire's color will determine the speed settings that the motor will run at. HVAC system for small church has twin Trane XR90 units installed in 2009 to replace a unit with a much larger single blower. It accounts for the amount of air in circulation for precision airflow. In fact, there's no need to worry about the fan wearing out or breaking down because it's designed to run continuously, and there's an array of benefits connected to this. Does a summoned creature play immediately after being summoned by a ready action? He is committed to outdoor cooking in a Bar-B-Q pit he welded together several years ago. Usually, gas furnaces have a temp rise of 50F. Yes: you will save electricity costs by running your blower on low. By clicking '. DoItYourself.com, founded in 1995, is the leading independent home improvement and repair website. Many gas-fired, high-efficiency furnaces also save on the electricity required to power the blower motor, though this savings is not factored into the AFUE rating. Usually there will be three speeds ranging from 40 to 100% of airflow. Can I retrofit a 2-speed or variable speed blower on a Payne PG8UAA forced air furnace? Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin?). Its a common occurrence in the heat of the summer or the cold of the winter one room doesnt get as warm or as cool as the others. So I continued to play around with different combinations tonight. Here are some of them: Better circulation of heated and cooled air. All information is provided "AS IS." To learn more, see our tips on writing great answers. I think I had it on my hard drive, and the hard drive crashed on us last winter. If you have an HVACR relatedquestion, drop it in the comment section of one of theYouTube videos at theAC Service Tech YouTube Channel and I will do my best to respond. The factory may only set two or three of these colors as actual speeds. Not every AC or furnace filter will have an arrow printed on the frame, but when it does the arrow indicates the direction the filter must face. Thoroughly rinse the filter. A description of how to change motor speeds with a multiple speed fan motor on an IFC controlled furnace.This video is part of the heating and cooling series of training videos made to accompany my websites: www.graycoolingman.com and www.grayfurnaceman.com to pass on what I have learned in many years of service and repair. We are no longer supporting IE (Internet Explorer). Tied from R to BK in air handler. During the awake hours I Hold the fan speed at either low or medium. The wires that are used will determine the speed settings that the motor will run at. Check out our free Quizzes to test your knowledge here! In other units, it may be 2, 3, and 4 that are programmed. For example, on a package unit, only taps 3, 4 and 5 may be programmed. Blower on delay settings, which evidently have an impact on the duration and speed of the blower fan. We welcome your comments and A MERV 16 filters particles at a level near that or a HEPA. There is another way to wire this, but I can not find it back.. Choose the Trane owner guide thats specific to your unit for detailed instructions on locating and changing yourairfilter. In the example above, an ECM 2.3 16 pin variable speed motor is connected to an air handler control board. The constant torque/multispeed motor will have the smallest module. But the 'real' one will be the one connected with a twist on cap to the fan motor. This helps the XR80 conserve more of the heat it produces. Another common place with a schematic is on the back of the blower fan door. Learn more about Stack Overflow the company, and our products. Can this be adjusted The installation guide clearly describes how to set airflow for heating mode and cooling mode. Locate your thermostat on the page and click System Mode. Should I upgrade to a pcm br compatible thermostat? When changing the AC or furnace filter, the arrow should face the furnace and point away from the return duct. CFM stands for "cubic feet per minute." Click System Options. She has experience researching and creating a wide range of home improvement and garden projects, and especially enjoys learning about fireplaces and exterior design. Bus Driver/Substitute Teacher Bundle Packs are a great way to save and get faster shipping! -The "System Type" is the CFM per ton to be adjusted between low, normal and high. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Id check that out first. The wires are several different colors. How exactly could I test this? The best answers are voted up and rise to the top, Not the answer you're looking for? We recommend our users to update the browser. Most of these are on the bottom left of the control board. When the system calls for heat and the inducer fan begins to run, check each pressure switch terminal. Its time to clear the air. A properly fitted filter can also trap unwanted, and oftentimes unseen, pollutants from the air in your home, including: Start with the return vent. In order to measure air flow you could use a flow capture hood, a rotating vane anemometer, or a hot wire anemometer. Tools that we use: www.amazon.com/shop/acservicetech. Soak the filter in warm water in a bathtub or sink. Pollen, dust, clothing and carpet fibers, hair spray, mold spores, Pollen, dust, clothing and carpet fibers, hair, mold spores, legionella, pet dander, Pollen, dust, clothing and carpet fibers, hair spray, mold spores, bacteria, pet dander, cooking oil, most tobacco smoke, smog, Air filters are the first defense against the pollutants in your air, but building a complete air filtration system can help support an even higher quality of indoor air. He is experienced in wood and metal construction, having designed and built several houses and metal buildings. Various advertisements for variable speed high efficiency furnaces call them "more energy efficiency" (note also the difference between a variable speed blower and a high efficiency furnace, they're separate, for instance you can have a variable speed blower on a low efficiency furnace). However, during the time period while the compressor is not engaged I need to circulate more air on the second floor or it becomes stale. how to change fan speed on furnace to get more heat from your unit HVAC STARTUP TECHNICIAN 4.6K views 1 year ago Trane XV80 or XC80 Variable Speed Motor Blower Fan Not Working - $9. video below! Of course all that heat was lost because of the ridiculous number of vents in our foundation. Variable Speed units continuously communicate with each other and your Trane thermostat to provide optimal efficiency. By rejecting non-essential cookies, Reddit may still use certain cookies to ensure the proper functionality of our platform. These adjustments can be made by pulling the single wire connector and moving it to another single tab positioned horizontally in each row. The remaining colored wires are the speed selectors for this blower motor.). How to use Slater Type Orbitals as a basis functions in matrix method correctly? enjoys making jams and jellies during fruit season along with cooking meals. I'm getting a new s9v2. BS in Industrial Technology, If you know what you are doing, it is very simple to adjust the speed of, Before you begin this process it is a good idea to make sure that no power is going to the fan. DoItYourself.com, founded in 1995, is the leading independent I have a Trane XV90 propane furnace with a variable speed blower. If you remove the common and place it on another terminal, it can burn out your motor not how you want the new furnace season to begin. It is a Trane S8X1 single stage furnace and air handler, paired with an XR16 3 ton AC unit. STEP-BY-STEP REPLACEMENT GUIDE Turn off air conditioning / heat from the thermostat. Its not advisable to slow your furnace blower speed. That will give you the most reliable results for your particular system. It offers three settings: 525 RPM for saving energy, 900 RPM for heating, or 1100 RPM for air conditioning. I Tried a Hands-Free Dog Leash, and I No Longer Dread Walking My Dog, This Simple Trick Can Refresh Your Entire Home, 30 Spring Cleaning Tasks to Add to Your Checklist, Do not Sell or Share My Personal Information. The manometer tells you the CFM number. On this motor module, the speed wires are red, orange, blue, yellow, and black. At night with an even lower set point I switch the fan speed to automatic. A 90 percent-plus furnace needs 150 cfm per 10,000 Btu of input. Now, I haven't done the measurement to learn how much electricity my blower uses on low vs high. Again, this can usually be found in the upper-left corner. 80% would be great for me. My gas furnace has two options for the blower speed: MED, and MED-HI. ECM blower motors do not require an external capacitor to operate. To recap: The service technician might be able to increase (or decrease) the blower speed, but that would probably lower the AC's cooling efficiency. Run a jumper from "R" to "Y2" and the blower will run continuously at the second-stage cooling speed. This value is then multiplied by 150 cfm to obtain the required airflow for the furnace in heating operation. Once you cut the power, you can remove the cover of your furnace to get access to the control board. Iappreciate all the comments, questions, and responses that Ireceive from each of you. Not every AC or furnace filter will have an arrow printed on the frame, but when it does the arrow indicates the direction the filter must face. On my furnace the schematic showed there were three speed settings. Trane. Typically the colors are: White = neutral speed Red = low speed Yellow = medium speed Black = high speed We welcome your comments and suggestions. Cross country truck driver -- over dimensional freight When the humidity is high for what its set at. Know your limits. I want to increase volume flow if possible. Trane XR80 Troubleshooting After examining the flashing system you should check the green light speed. Thus, my blower can't be using that much electricity on high. To understand how this works, let's look at the wiring on your furnace's blower. Is it suspicious or odd to stand by the gate of a GA airport watching the planes? Our Privacy Policy governs the use of your information. You need to follow the wiring diagram inside the HVAC unit. I know I need to replace a dying blower motor in a 1992 Trane . Here are common Trane AC repairs not listed in the guide and their repair cost for parts and labor: Leaking coil and refrigerant: $1,150-$1,750 Thermostatic expansion valve (TXV): $275-$450 Compressor and refrigerant (after ten years, typically): $1,150-$1,600 Failed solder connection on refrigerant lines and refrigerant: $875-$1,220 I understand that the higher speed is probably for cooling (for which we have a separate duct system and handler), but is it the case that the speed can be switched to a higher fan speed? Asking for help, clarification, or responding to other answers. Cookie Notice (Variable & Multi-Speed Types), In this HVAC training article, we will be discussing how to adjust the fan speeds on an indoor, In order to measure air flow you could use a flow capture hood, a rotating vane anemometer, or a, I hope this helps you understand how to adjust the airflow speed on ECM Blower Motors! When one of the taps is powered with 24v, the motor will turn on and run at the selected speed. I've gone through the process of adjusting the manual zone louvres on the main ducts (and on registers) and checked them with my camera for blockages. Remove the motor and mounting bracket. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. Standard blower motors operate at a single speed and cost around $450 to replace, including parts and labor, while variable-speed motors cost $600 and up. Step 2: Remove the panel cover of the furnace. Radiant floor heat web sites are mysteriously silent on this simple and cheap modification of pre-exisiting systems to accomplish the same goal. The system might not work properly. In this video, we are changing the blower speed on a Trane XR 95 furnace so that the forced air furnace circulates more air on heat mode. Disconnect between goals and daily tasksIs it me, or the industry? How do I check if this furnace switch the blower to second speed. with a wiring harness for the fan. The fan speed is very low when not heating/cooling. you will get the better dehumidification with the lower setting. If the furnace manufacturer supplies different burners for that unit you may be risking premature failure. I'd like to get some second opinions. The house cools off quick - too quick - and feels humid (not sure of the rh%). Change the speed. Most furnaces have a relay switch on the door cover. 01 - Trane Furnace Control Board. This trick only works on gas furnace systems with a multi-speed blower. This will cause the "Cool" terminal on the control board to be connected to to the #4 terminal on the motor module via the black wire. A slim, removable cover will reveal the filter location. Anyone? There is a modification that will allow the VS fan to run on high speed at all times while in the AC mode and with the fan "ON" mode. If you know what you are doing, it is very simple to adjust the speed of your furnace fan. If the terminals are present at the motor module (ECM X-13) you can switch speeds at the blower motor location. There are two types of fan motors found in furnaces: 1.) It shouldn't take more than a few minutes a day to record the data anyway. Can a furnace with a variable speed blower be used in a multistory house? Variable speed furnaces only operate at . The SW2 indicates the air conditioning size. The boiler is feeding a DHW sidearm and furnace plenum HX. When the R-G circuit is made, the blower motor operates on heating speed. Switched it to heat (in which case the furnace board is in control of the fan, not the stat) - got fire, no fan. For homeowners who want to upgrade rather than replace an existing furnace, Emerson Electric offers an exclusive replacement blower motor called the Mark Z that can be set by the homeowner on a continuous, slower-than-normal speed. When you purchase through links on our site, we may earn commissions at no cost to you. Remove two screws from each bracket leg holding the motor. The line voltage and 24v common are connected at the top and are labeled as C, L, G, N. The 24v common is C and the ground wire is G. For a 120v unit, the L is the 120v hot and the N is the 120v neutral. How can I check before my flight that the cloud separation requirements in VFR flight rules are met? By Pressing submit, I consent that my information be shared with Trane approved affiliates and third party partners, including connecting me with a local Trane dealer to be contacted about products and services. The manual document include instructions and informations on how to troubleshoot the system. The A/C will run according to the thermostat settings. . How does a furnace work? Wires from the 16 pin plug are connected to this board. In my searching I have found out that there is a stupid little thermistor that burns out on the motor circuit board (it's a variable speed blower), and replacing it is a permanent fix.. Ilook forward to responding to many more! Because the slower air velocity over the heat element is transferring fewer BTU units into the circulated air and they simply go up the exhaust pipe. If the instructions are not with the furnace, you can look up the model number of the unit and search for the installation manual via a google search. Meanwhile, the Circulate setting is a hybrid and auto that keeps the fan running throughout heating cycles and then again for a few minutes every hour even when the furnace is off. Website operating The control board has relays that regulate the voltage to each component in the furnace. When you open the panel, it kills the power to the furnace. In support of this: I found the mfr owner's manual for my furnace and in it, it states, "if you have an air-conditioning coil installed, you should switch the furnace blower speed to high to accommodate the decreased air-flow caused by the cooling coil in the plenum.". Slowing the blower speed reduced the noise but I take it you would still like it to be more silent. Remove both of these wires and wire nut them together. View our Privacy Policy here. In the pictured example above, if the #5 speed tap is programmed for 1600 CFM and #4 is programmed for 1200 CFM and #5 is presently connected to the "Cool" terminal on the control board via the black wire, we know that the unit is running at around 1600 CFM as long as the TESP across the unit is not too high.