Here are some of them: Better circulation of heated and cooled air. Most homes are best served by a filter with a MERV rating of 8 to 13, but refer to your system's user manual or with a Trane employee for guidance. That said the contractor has no real incentive to get it right. New XV80 Trane furnace makes noise when blower runs at low - JustAnswer one room doesnt get as warm or as cool as the others. I just moved into a house with a Trane XR80 furnace (several years old). Copyright He owned and operated a manufacturing business building Compact Utility Vehicles for homeowner use. I simply am unable to put my hands on the schematic. One thing I found consistently was that making changes on the RS-485 hydro heat control board and W1-W3 jumpering had notable effects (more CFM's at my test register) while messing with the mainboard DIP switches had little to no effect. -The "AUX Heat" makes sure that there is enough airflow when elect strip heat is called. The gas is shut off and the induction motor stops running while the blower . and as I recall, you have the HW VP IAQ stat. Other than removing the module and seeing burnt components it must be diagnosed by a professional with a techmate tool ( allows you to test the motor and module and determine cause of error). #3. Air flow - American Standard | Air Conditioning and Heating | HVAC Trane XR95 - how to adjust fan speed? - DIY Home Improvement Forum There are often five wire colors coming from your blower to your IFC. Is it Covered Under Homeowners Insurance or a Home Warranty? The system might not work properly. I'll edit my answer and include the exact parameters I'd record every day for a thorough study. How to tell which packages are held back due to phased updates, Linear Algebra - Linear transformation question. A properly fitted filter can also trap unwanted, and oftentimes unseen, pollutants from the air in your home, including: Start with the return vent. However, I like the continually run the fan to even out air temperature in the house. Trane variable speed air handler setting - Houzz Changing the Blower Speed on a Furnace - YouTube If a clear distinction between the blower speeds isn't obvious in the data, then you're probably not going to save much money either way, so go with what's most comfortable for you. It had been set on the higher speed, but that was too harsh, so I lowered it to the slower speed. Most of these are on the bottom left of the control board. Proper Fan Speed Setting During Heating Mode . Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin?). Usually there will be three speeds ranging from 40 to 100% of airflow. Then, carefully switch it to the setting of your choice and push it back into the control board. The best answers are voted up and rise to the top, Not the answer you're looking for? maryland_irisman 14 years ago As suggested by the others, you should balance the air flow and the fan cfm should be matched to the system and duct system. 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. Yes you can change it, how to do it is in the manual, yes there can be downsides, no it probably won't fix your air balancing issues. The company offers a variety of furnaces to suits the needs of every home. Step 4: Take out the inducer motor. Thoroughly rinse the filter. The noise of forced air is annoying. At night with an . According to the manufacturer's documentation, your furnace should have a 3 or 4 speed blower motor. This helps the XR80 conserve more of the heat it produces. R and BK are tied together. Carefully disconnect the wires from the coolant terminal, which is located on the back of the unit. The ignitor glows. To help ensure you're breathing healthier air and supporting your heating and cooling system to operate at an optimal level, follow the simple steps in this video to change your furnace filter assuggested. Remove both of these wires and wire nut them together. Options are, for example, 4 minutes at 80%, or 30 seconds at 50%. The real fix is to add insulation and install a second system on the second floor of most recently constructed homes with an adequate number of true ducted returns as opposed to the leaking stud-space returns contractors are so fond of. Realizing this after a very long period of investigation, I eventually turned up the fan speed dial; this seemed to correct the problem initially, until one night a week later lying in bed I heard it do the same thing but but after a much longer run time. If you know what you are doing, it is very simple to adjust the speed of your furnace fan. However, if your HVAC blower motor isn't too badly damaged, the technician may be able to clean and repair it so you won't have to incur the cost of a replacement. Wires from the 16 pin plug are connected to this board. Dealers can answer questions, help you find the right products for your home, and repair your system. On this control board, there are multiple adjustments for the airflow speeds. Connect and share knowledge within a single location that is structured and easy to search. Yes, there is a way to bring up the speed on the air handler.. Remove the motor and mounting bracket. HVAC Stages - Trane Home Click On under Emergency Heat. When changing the AC or furnace filter, the arrow should face the furnace and point away from the return duct. 01 - Trane Furnace Control Board. So How Do We Adjust Fan Speed? Before you begin this process it is a good idea to make sure that no power is going to the fan. Craig creates educational HVACR articles and videos which are posted at https://www.acservicetech.com & https://www.youtube.com/acservicetechchannel & https://www.facebook.com/acservicetech/. Turn off the emergency HVAC shutoff switch Remove top and bottom cover panels on the air handler / furnace unit (fig.5.1). Since hot air is much lighter . 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. The boiler is feeding a DHW sidearm and furnace plenum HX. If your home has multiple HVAC systems, there will likely be at least one air filter for each unit. How can I check before my flight that the cloud separation requirements in VFR flight rules are met? Connect with our Customer Care team about your products, warranties, and dealer concerns. Continue reading to learn how to lower the fan speed. Why is my furnace blower running at low speed? Can you increase the speed of an ECM AC blower? This will increase the number of air changes per hour (ACH) in the house and also help compensate for a more restrictive whole home air filter like a MERV 16 being installed. Third-stage auxiliary heating for heat pumps and multi-stage furnaces. Note also that there is always just "one blower" but that blower may or may not be variable speed, etc. If it goes out of spec then on "very cold days" (when the furnace runs a lot) it could trigger an automatic shut off when the exchanger doesn't end up getting cooled enough, FWIW. You can change the settings for cfm fan speed, but you have to do it manually at the board. The arrow should face the direction the air is flowing. You may freely link to this site, and use it for non-commercial use subject to our terms of use. To understand how this works, let's look at the wiring on your furnace's blower. Remove two screws from each bracket leg holding the motor. hvac - Why is my furnace blower running at low speed? - Home Where To Find R-22 & R410A Leaks on AC Units! There are often five wire colors coming from your blower to your IFC. 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. I have been reading that the br wire can be used to let the thermostat control the fan speed, or the furnace itself can be programmed to ramp up the fan speed. The house has a 3 ton trane xl20i and an xv80 (4 ton max). 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. and our To subscribe to this RSS feed, copy and paste this URL into your RSS reader. Mine. The airflow adjustments on this board are pictured below. (new Image()).src = 'https://capi.connatix.com/tr/si?token=2ba02a33-c319-4410-bba7-f8321a13bed3&cid=877050e7-52c9-4c33-a20b-d8301a08f96d'; cnxps.cmd.push(function () { cnxps({ playerId: "2ba02a33-c319-4410-bba7-f8321a13bed3" }).render("00499ba9282e4d1b985fa8af14d29c2b"); }); On my furnace IFC, the black (high speed) wire is connected to the air conditioning (cool) terminal, and yellow (medium-high speed) is connected to the (heat) terminal. By regularly changing your filter, you can improve your indoor air quality and extend the life of your heating and cooling system. XB Trane Furnace Is there a fan speed control on the unit. - JustAnswer For business related inquires email us at. I would think adjusting the heating element would save more energy than reducing the blower's electric consumption, but I didn't do a study on it myself. The wire's color will determine the speed settings that the motor will run at. The blower speed for a gas heater is selected so that it is comfortable for the building occupant but also so that the Delta T (Temp Rise) does not continue to rise. It only takes a minute to sign up. 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. 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. Your new AC unit is not collecting water (yet) because the anticondensation coating hasn't been compromised (yet); and that's a good thing. This can be done through an independent dehumidistat or through a thermostat's DEHUM terminal (if available). I guess you are talking about a 3 speed direct drive motor with 1/2 shaft. The MERV rating is typically printed on the filter packaging, but not necessarily on the filter itself. Shay Tilander is a senior editor at Family Handyman. We have a Trane XL80 furnace manual in pdf version that you can download for free. Batch split images vertically in half, sequentially numbering the output files, Using indicator constraint with two variables. To start, ECM stands for Electronically Commutated Motor which means that the motor is capable of electronically controlling it's own speed, and therefore CFM, according to the desired output. The fan speed is controlled on the control board for the furnace. you will get the better dehumidification with the lower setting. 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. The blower motor also begins running, but at low rpm. charts are usually found on the air handler inside door to controls. Adjusting the Airflow Speed on ECM Blower Fan Motors! (Variable & Multi The blower energy draw at a lower speed will be offset by the loss in fan wheel inertia. Possibly you could do the same here (turn down blower and gas). Certified Welder 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. The MERV scale rates filters from 1 to 16. I'm also going to go through and make sure there are no visible leaks or damage to them. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. So the blower motor is dead. Comfort R should be off if you are using . http://www.inspectorsjournal.com/Forum/topic.asp?TOPIC_ID=8998&, We've added a "Necessary cookies only" option to the cookie consent popup. The gas kicks on and is lit by the ignitor. Why do many companies reject expired SSL certificates as bugs in bug bounties? Check out www.acservicetech.com/store. How to use Slater Type Orbitals as a basis functions in matrix method correctly? Connect Y2 on thermostat to BK on furnace, and Y2 on the Condensing unit Cut R-BK jumper at Furnace Install R - O jumper at Furnace Connect W2 on thermostat to W2 on furnace (or alternatively, jumper W1 to W2 at furnace and confirm that dip switches are set correctly for Stage Delay if furnace is desired to automatically control heating stages) If the blower motor is burned out, replace it. 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. It shouldn't take more than a few minutes a day to record the data anyway. These blower motor speeds are programmed at the manufacturer's factory for the specific equipment model number unit it is installed in. Move the high-speed wire to low. How exactly could I test this? The blower/fan seems to be running way to fast. 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. This is done so that the maximum amount of heat is gained in the building from the refrigerant. Trane. What actually happened was that it caused the furnace to short cycle, running for about 4.5 minutes then shutting off and immediately turning on again over and over until it reached the set point. Mine has a wall switch. 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. Note: (High voltage is always going to your blower motor along with the common for the 24 volts. When the R-G circuit is made, the blower motor operates on heating speed. air flow is inadequate to match demand and duct size. The blower fan on this blower has four speeds. DoItYourself.com, founded in 1995, is the leading independent The control board has relays that regulate the voltage to each component in the furnace. Roughly 400 CFM is needed for every 1 ton (12,000 BTU/HR) of Heat Removal Capacity in Air Conditioning Systems. Locate your thermostat on the page and click System Mode. Air filters are typically found behind the return vent door, often located in the ceiling or wall in the central portion of your home. With heating oil at $4.50/gal I can assure you without measuring anything that running my blower on low is NOT more efficient from a $$ perspective. Usually there will be three "speeds" ranging from 40 to 100% of airflow. When one of the taps is powered with 24v, the motor will turn on and run at the selected speed. If you have suggestions or comments they are welcome. Run a jumper from "R" to "Y2" and the blower will run continuously at the second-stage cooling speed. This BTU/HR capacity should be used to set the CFM for the indoor blower motor. 3 of the wires will likely terminate with just a twist on cap. For this reason, pair your Variable Speed AC unit with one of the following components: Hyperion TAM9 Air Handler, XC 80 Gas Furnace, XC 95M Furnace, or S9V2. This will help prevent injury and damage to the furnace fan. Can a furnace with a variable speed blower be used in a multistory house? If 1600 CFM is too high of an airflow volume and only 1200 CFM is needed because the system is a 36,000 BTU/HR air conditioner, we can swap the yellow with the black wire on the motor module. Each is associated with a different blower speed. The installation guide clearly describes how to set airflow for heating mode and cooling mode. If you have any questions or need assistance, please contact Trane Home Customer Support via email at help@tranehome.com or call 1-877-288-7707, Monday-Friday 9 . Top 10 Spots! If you want to learn about refrigerants and how they work in a system, check out our Refrigerant Charging and Service Procedures for Air Conditioning book . Air Filter - Be sure to check the air filter and replace if necessary. Oil Furnaces may have a temp rise of 50-60F. The video will also explain other safety measures, as well as some for a demonstration which I will show. 81K views 2 years ago 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. The fan speed is very low when not heating/cooling. Unlike a conventional systemwhere the furnace goes on, blows hot air into the house at full force for a few minutes, and then shuts offa variable-speed or variable-capacity system runs the blower for longer periods at lower speeds. Furnace Inducer Motor Making Noise? (Possible Causes & Fixes) According to the company, the slower circulation speed reduces energy consumption by 75%. This value is then multiplied by 150 cfm to obtain the required airflow for the furnace in heating operation. The arrow should face the direction the air is flowing. The Trane XR80's heavy steel insulated cabinet has two benefits: Holds in more of the heat that you pay for Decreases operating noise Because of its heavy steel insulated cabinet, the XR80 can experience as little as 1% of air leakage. Trane Furnace - Furnace Blower Not Running - Repair Parts | Repair Clinic These blower motor versions can be found in furnaces, air handlers, and packaged units. Using a filter that's too small or too large will allow debris particles to pass into the HVAC unit, potentially damaging or blocking the system. I'd like to get some second opinions. Another common place with a schematic is on the back of the blower fan door. Turn off power at the main electric panel. Invention prototypes are another of his many accomplishments. 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. Duct Dynasty: Taking the Guesswork Out of Fan Speed Settings It offers three settings: 525 RPM for saving energy, 900 RPM for heating, or 1100 RPM for air conditioning. The induction motor begins running. I was reading the Trane XL824 thermostat installation and setup manual. Remove the air handler. How to Fix a Pressure Switch Error on a Trane | Hunker Step 2: Create a Safe Workspace When working with any unit connected to electricity, it's important to turn off the power to prevent electrocution and damage to your furnace. HVAC filters help remove dust, dander, and harmful particles from the air inside your home. The control board is communicating with the blower module in order to determine the airflow volume needed. Air Filters remove dust, lint, pet dander, and other pollutants so you can breathe easier knowing your indoor air quality is better with Trane. They do this by coupling a sophisticated, programmable thermostat to a variable-speed motor. Thanks for the reply. This control board is out of a variable speed furnace with a modulating gas valve that has a variable speed inducer motor. 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). When changing the AC or furnace filter, the arrow should face the furnace and point away from the return duct. The SW2 indicates the air conditioning size. Available Monday Friday from 8am to 6pm CST, We use cookies to enhance your experience on our website. Western VA. Nov 28, 2009. To adjust the dip switches, turn the power off and take a flat head screw driver to lightly push the dip switches to the on/off desired position for each numbered switch. Locate the speed wires. So clearly, running your furnace blower on low is only more efficient IF-and-ONLY-IF the cost of the heating fuel is much much less then the cost of the electricity to run the blower that little bit faster. How to Replace a Trane Blower Motor - Part 1 - AllThumbsDIY.com XB Trane Furnace: Is there a fan speed control on the unit. 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! Possible to change Trane XR80 blower speed? : r/hvacadvice 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. The system also accounts for blocked vents and dirty furnace filters, and adjusts fan speed as needed to compensate. These blower motor versions can be found in furnaces, air handlers, and packaged units. Which thermostat wires control the furnace fan? How to change the fan motor speed on a gas furnace - YouTube Learn more about Stack Overflow the company, and our products. In terms of heat pumps, running the external blower faster may reduce i2r copper losses and hysteresis iron eddy current losses. These three are connected to the "Cool", "Heat", and "Fan" terminals on the control board. This furnace features the common White-Rodgers Intell-Ignition circuit board. To ensure our content is always up-to-date with current information, best practices, and professional advice, articles are routinely reviewed by industry experts with years of hands-on experience. Black: High; Yellow: Medium-high ; Blue or brown: Medium-low; Red: Low; Presently the settings for the cooling mode is speed 7 (C1.7), heating mode at speed 5 (H1.5), and continuous fan mode is set at the lowest speed (CF.1). problems contact webmaster@doityourself.com. 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. My gas furnace has two options for the blower speed: MED, and MED-HI. Compatible with Trane systems or any standard HVAC system. Electric Furnace Sequencer Replacement Instructions for Home Repair Please note that mounting bracket consists of top and bottom brackets joined by 6 metal screws (fig.6.9). Step 3: Adjust the Pulley on the Blower Drive Motor When the system calls for heat and the inducer fan begins to run, check each pressure switch terminal. This means that any time cooling is called for by the control board, 24v will be present on the #4 terminal of the motor module to turn the motor on and to run at roughly 1200 CFM.