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

The heat exchanger warms up the incoming air and a blower or air handler sends the warm air throughout the home. Usually, gas furnaces have a temp rise of 50F. I am just clueless, could it be the thermostat (really old) or something that is going to cost a billion dollars to fix? The house has a 3 ton trane xl20i and an xv80 (4 ton max). The higher the MERV rating, the better the filter is at capturing specific pollutants from the air. He currently has a home shop where he sharpens and rebuilds saws, repairs lawn mowers, mobility scooters, hydraulic jacks, and anything else that comes along. I'm not in enhanced mode. Carefully disconnect the wires from the coolant terminal, which is located on the back of the unit. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. How to use Slater Type Orbitals as a basis functions in matrix method correctly? I want it for the same reason as cliff--the top floor of my house is colder than the main floor and I'd like to even things out by moving more air around. For example, on a package unit, only taps 3, 4 and 5 may be programmed. to this site, and use it for non-commercial use subject to our terms of use. How exactly could I test this? 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. 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. 4TEE3C10A1 That is excessivly loud. To learn more, see our tips on writing great answers. (Trust me, the worst thing that happens to me on the job is having inconclusive results due to insufficient data collection during an expensive and time-intensive study.) Connect the black wire to the manometer. 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). Thanks for all your continued support! When the humidity is high for what its set at. 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. The noise is there in heat or AC. Measured the temperature of the air before the coil and after the coil and used DeltaT (change in temperature) to determine the blower setting. If you have not read that yet, I would encourage you to do so! Test your knowledge with our 1,000 question workbook along with the answer key! XB Trane Furnace: Is there a fan speed control on the unit. First, make sure that power is getting to the motor. Identify those arcade games from a 1983 Brazilian music video. Thus, my blower can't be using that much electricity on high. Helm is an accomplished DIY craftsman. Sometimes less cmf will give the air more time in the heat exchanger thus letting it get hotter. The most important factor is temperature differential - the difference between the inside temperature and outside temperature. Continue reading to learn how to lower the fan speed. with a wiring harness for the fan. A MERV rating speaks to the filters ability to capture large particles. Match the positions to the desired pictures within the manufacturer's installation literature. 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). Sometimes you have to add more ducts to achieve the proper pressure and velocity. submitted to our "DoItYourself.com Community Forums". When your AC unit is working properly, the blower inside your furnace or AC will blow cold air.The cold air is sent through ducts to the living areas and then returns air to be cooled by the evaporator coil. Yes: you will save electricity costs by running your blower on low. Air Filter - Be sure to check the air filter and replace if necessary. I think I had it on my hard drive, and the hard drive crashed on us last winter. Here are how my dip switches are set: Did the installer tie in a humidistat there on that V/S blower . New XV80 Trane furnace makes noise when blower runs at low speed. To understand how this works, let's look at the wiring on your furnace's blower. 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). When the R-G circuit is made, the blower motor operates on heating speed. 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. The ohm meter should read very close to zero. It accounts for the amount of air in circulation for precision airflow. 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. Western VA. Nov 28, 2009. But you will have a tough time measuring either on your basement Trane. Only swap these two wires. The blower motor also begins running, but at low rpm. 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. Home House & Components Systems Heating & Cooling System Air Conditioners. *NOTE* If you attempt this, be absolutely sure that you have no power going to your system, especially before changing wires. I know I need to replace a dying blower motor in a 1992 Trane XL80 gas furnace. Tools that we use: www.amazon.com/shop/acservicetech. I'm also a little concerned that this furnace might be a little undersized for our house (if I understand correctly, its a 100 BTU unit). The blower/fan seems to be running way to fast. It was working a week ago but just recently when it runs it blows out cold air. Questions of a Do It Yourself nature should be My heat is running cold! Then switch the jumper to your desired speed. 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. Allow the filter to completely dry before returning it to the device. Well, it does make sense that lowering the blower speed would reduce its electrical consumption. A second filter location for most HVAC systems and furnaces is the air handler portion of the system. All rights reserved. ECM Multi-Speed Blower Motor (Genteq X-13). Your R value shouldn't change, and daily average wind speed and precipitation should have a minimal effect on the convection coefficient. I hope this helps you understand how to adjust the airflow speed on ECM Blower Motors! 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. If you do, you may not have enough air flow over the heat exchanger, resulting in overheating and eventually a shorter exchanger life span. video below! 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. 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. Variable Speed units continuously communicate with each other and your Trane thermostat to provide optimal efficiency. Does lowering the blower speed of a forced-air furnace lower its efficiency? Disconnect between goals and daily tasksIs it me, or the industry? The continuous fan is marked SW3. Turn off the emergency HVAC shutoff switch Remove top and bottom cover panels on the air handler / furnace unit (fig.5.1). He maintains fruit and nut trees along with helping his wife with a vegetable garden. The hot air will rise and heat the floor from beneath, a DIY form of radiant floor heating. One of these wires will be coming from the thermostat and the other will go to the outside unit. There is no humidistat. lower efficiency furnace) it is drafting exhaust up the flue which can't be good. Test the new speed. Upon initial installation, these dip switches need to be adjusted for the particular unit, size, and application. He has been DIY since childhood and is now a septuagenarian. Changing your HVAC and furnace air filter is a vital part of home maintenance. Website operating I was reading the Trane XL824 thermostat installation and setup manual. Since I first posted this thread, my installer called Trane to get an answer to my original question. It provides quieter and more even and comfortable heat than a conventional furnace and doesnt consume electricity unnecessarily. The boiler is feeding a DHW sidearm and furnace plenum HX. A dirty air filter can cause your HVAC system to go into overdrive and result in costly energy bills. STEP-BY-STEP REPLACEMENT GUIDE Turn off air conditioning / heat from the thermostat. It offers three settings: 525 RPM for saving energy, 900 RPM for heating, or 1100 RPM for air conditioning. I'm also going to go through and make sure there are no visible leaks or damage to them. suggestions. Trane. 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. 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. http://www.inspectorsjournal.com/Forum/topic.asp?TOPIC_ID=8998&, We've added a "Necessary cookies only" option to the cookie consent popup. No need for direct trane replacment motor. ASE Certified Master Auto Technician Sign up for our email newsletter to learn helpful HVAC tips and tricks before your purchase your system. Connect and share knowledge within a single location that is structured and easy to search. There are several tutorials on Youtube about how to do this step for specific inducer motor brands. If the blower motor hums, check the blower fan to ensure that it spins freely. H.R. Using a hammer, lightly tap out the blower motor shaft (fig.6.7) to loosen the blower motor from the fan shroud (fig.6.8). Usually there will be three speeds ranging from 40 to 100% of airflow. Compatible with Trane systems or any standard HVAC system. When the summer air conditioning season transitions to the fall heating season, increase the blower speed by switching the wires on the cool and heat terminals. 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. 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. Also related, with for instance a variable speed furnace, since it runs continuously and reduces "cold spots" you might find you can set it at a lower degree setting than the off/on kind. Comfort R should be off if you are using . All information is provided "AS IS." American Standard air handler troubleshooting Example: Rated Btu Input = 60,000 / 10,000 = 6 x 150 = 900 cfm of required furnace airflow. 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. If you have suggestions or comments they are welcome. Locate the speed wires. This will increase the number. What sort of strategies would a medieval military use against a fantasy giant? Slowing the blower speed reduced the noise but I take it you would still like it to be more silent. Turn off power at the main electric panel. Additionally, they can be identified by the presence of a removable module/bell on the end of the motor. If the terminals are present at the motor module (ECM X-13) you can switch speeds at the blower motor location. *Based on third party testing of particle removal efficiency down to 0.3 microns (2005). Move the high-speed wire to low. Solution: Install a new sequencer AND a new fan relay, just to be safe. homininet 8 mo. Typical setups include these wire colors with associated blower speeds. For 240v units, both the L and N are hots. Check back regularly as we are always updating and improving thiswebsite! 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) This covers speed adjustment on a PSC motor. The wire's color will determine the speed settings that the motor will run at. We also have quick reference cards for use out in the field! Can this be adjusted AC Service Tech HVAC Training is made possible by continued support from our visitors, customers, and support from these Sponsors! Oil Furnaces may have a temp rise of 50-60F. Once you cut the power, you can remove the cover of your furnace to get access to the control board. Motor is an ECM and it makes a low pitched whine sound when in CIRC or when the blower is ramping up or slowing down to stop. Step 3: Find the furnace draft inducer. ECM blower motors do not require an external capacitor to operate. This is a follow-up to our other article on "Adjusting the Furnace/AC Airflow Speed on a 120v PSC Blower Motor". home improvement and repair website. Since hot air is much lighter . 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. Craig is a licensed Teacher of HVACR, Sheet Metal, and Building Maintenance in the State of New Jersey of the USA. Privacy Policy. Making statements based on opinion; back them up with references or personal experience. (Variable & Multi-Speed Types) In this HVAC training article, we will be discussing how to adjust the fan speeds on an indoor ECM variable speed blower motor and an ECM constant torque/multi-speed blower motor. I'm getting a new s9v2. Why do many companies reject expired SSL certificates as bugs in bug bounties? air flow is inadequate to match demand and duct size. Check out www.acservicetech.com/store. A 1.5 ton AC unit may not be large enough to cool the . By pressing "submit", I understand that I am providing express consent for Trane Residential to contact me about this request or similar topics. In this HVAC training article, we will be discussing how to adjust the fan speeds on an indoor ECM variable speed blower motor and an ECM constant torque/multi-speed blower motor. When it is flashing fast there is heat throughout your home. To switch the jumper, you will need to hold onto it gently as you pull it out of its current setting. If you are a homeowner looking to repair your own appliance, understand that the voltages can be lethal, the fuels are highly flammable and high pressures are used. View our Privacy Policy here. Remove both of these wires and wire nut them together. If the pressure switch is functioning properly . In humid climates, 350 CFM per ton can be selected in order to remove more moisture from the air. There are often five wire colors coming from your blower to your IFC. During "Fan On", the fan runs at 50% of whatever the maximum speed of the fan is. Of course all that heat was lost because of the ridiculous number of vents in our foundation. Your OP was a noise complaint. Example: 1200 CFM is needed for a 3 ton 36,000 BTU/HR system. You need to find the wires that determine blower speed inside your furnace. 10 Reasons a Blower Fan Won't Start in a Furnace, AC or Heat Pump. Copyright 1995-document.write(new Date().getFullYear()) MH Sub I, LLC dba Internet Brands. you will get the better dehumidification with the lower setting. Remove the air handler. Air filters are measured by Minimum Efficiency Reporting Values (MERV). Click System Options. Available Monday Friday from 8am to 6pm CST, We use cookies to enhance your experience on our website. The remaining colored wires are the speed selectors for this blower motor.). 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. 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. Wires from the 16 pin plug are connected to this board. 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 fan speed is very low when not heating/cooling. We are no longer supporting IE (Internet Explorer) as we strive to provide site experiences for browsers that support new web standards and security practices. To begin, turn off the power to your furnace. I could imagine possibly fewer "warm up cycles" (which also include having to power on the fan) might save something (as well as lower fan speed=less electricity)but as others have noted, while its running (esp. I guess you are talking about a 3 speed direct drive motor with 1/2 shaft. enjoys making jams and jellies during fruit season along with cooking meals. This will help prevent injury and damage to the furnace fan. (FYI Filter was clean and furnace was recently serviced all prior to my initial investigation of the short cycling). HVAC filters help remove dust, dander, and harmful particles from the air inside your home. It only takes a minute to sign up. Most furnaces have a relay switch on the door cover. 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. The constant air turn over at a lower set point keeps the house comfortable. This is an old thread but I am going to post my experience: I have an oil furnace, at some point someone (a furnace tech) adjusted the blower to run slower thinking it would provide more hot air by slowing the air to heat up more before supplying the house. If power is getting to the blower motor, but the motor does not run, the motor may be burned out. Air Filters remove dust, lint, pet dander, and other pollutants so you can breathe easier knowing your indoor air quality is better with Trane. During the awake hours I Hold the fan speed at either low or medium. DoItYourself.com, founded in 1995, is the leading independent home improvement and repair website. 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. Soak the filter in warm water in a bathtub or sink. Reddit and its partners use cookies and similar technologies to provide you with a better experience. The ignitor glows. The blower fan on this blower has four speeds. Once you have located the panel, remove it. The arrow should face the direction the air is flowing. During the awake hours I Hold the fan speed at either low or medium. 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. I simply am unable to put my hands on the schematic. Follow us on Facebook for Quick Tips and Updates here! I understand the reason for slowing the air to remove humidity. 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. These adjustments can be made by pulling the single wire connector and moving it to another single tab positioned horizontally in each row. If the control board is at fault, replace it. It allows three constant fan speeds as well as an automatic fan speed and a variable burn rate and compressor and fan speed. If the furnace manufacturer supplies different burners for that unit you may be risking premature failure. The wires are several different colors. 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 BTU/HR size is selectable between 48,000 42,000 36,000 or 30,000 BTU/HR. The house cools off quick - too quick - and feels humid (not sure of the rh%). Switch the power back on and test it. The SW2 indicates the air conditioning size.