These blower motor versions can be found in furnaces, air handlers, and packaged units. The best answers are voted up and rise to the top, Not the answer you're looking for? The heat exchanger warms up the incoming air and a blower or air handler sends the warm air throughout the home. Adjust blower/fan speed from Thermostat? - HVAC-Talk: Heating, Air rev2023.3.3.43278. By pressing "submit", I understand that I am providing express consent for Trane Residential to contact me about this request or similar topics. Connect the black wire to the manometer. Copyright 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. We have been heating the crawl space in our house for several winters because the ductwork was all torn up from rats. Being an bms/controls guy I rarely have enough cfm in large buildings. It is about 1300-1400 sq feet, but then the basement was finished at some point, more or less doubling the square footage. Dave. Before you begin this process it is a good idea to make sure that no power is going to the fan. I'm also going to go through and make sure there are no visible leaks or damage to them. If the ohm meter comes back with an open line reading, the switch is bad and needs replaced. As a side note, lowering furnace (heating) blower speed should apparently only be done if it doesn't reduce the "heat rise" (difference in temperature between the intake and supply air, if I understand it, also known as the "delta T") past the manufacturer recommended value for that furnace. Should I Run Furnace Fan on AUTO or Circulate? - HouseholdAir However, I like the continually run the fan to even out air temperature in the house. 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. I'm getting a new s9v2. I'll just run the heat pump through the leaky ductwork and heat the crawl space. He has been DIY since childhood and is now a septuagenarian. Choose the Trane owner guide thats specific to your unit for detailed instructions on locating and changing yourairfilter. At night with an . Most homes have a standard split-system air conditioning unit with two main fans. 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). Of course all that heat was lost because of the ridiculous number of vents in our foundation. Connect the ohm meter to the pressure switch. Each is associated with a different blower 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. The factory may only set two or three of these colors as actual speeds. - The "Continuous Fan" refers to when the G terminal is powered for the fan only to run. The NET difference of the above two figures is your savings or cost. one room doesnt get as warm or as cool as the others. Here are how my dip switches are set: Did the installer tie in a humidistat there on that V/S blower . 3.5 x 400 = 1400 CFM. The wires that are used will determine the speed settings that the motor will run at. Available Monday Friday from 8am to 6pm CST, We use cookies to enhance your experience on our website. Typical setups include these wire colors with associated blower speeds. 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 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. There is no humidistat. Follow us on Facebook for Quick Tips and Updates here! -The "AUX Heat" makes sure that there is enough airflow when elect strip heat is called. DoItYourself.com, founded in 1995, is the leading independent home improvement and repair website. Step 2: Remove the panel cover of the furnace. 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. Enabling and Disabling Emergency Heat - Trane Home Locate the wire for the new speed setting ("medium" or "low"), remove the wire nut from its end and use wire strippers to strip 1/2-inch of insulation from the end of the wire. Step 3. Thanks for all your continued support! Heres What It Means, Why You Should Monitor the Humidity Levels In Your Home. #3. The arrow should face the direction the air is flowing. 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. When you purchase through links on our site, we may earn commissions at no cost to you. Check out our free Quizzes to test your knowledge here! Carefully disconnect the wires from the coolant terminal, which is located on the back of the unit. the module must be a trane furnace model specific programmed and is available separate from the motor. (FYI Filter was clean and furnace was recently serviced all prior to my initial investigation of the short cycling). If you do, you may not have enough air flow over the heat exchanger, resulting in overheating and eventually a shorter exchanger life span. The S8X1 blower has 9 speeds. The manometer tells you the CFM number. Identify those arcade games from a 1983 Brazilian music video. It would have no affect on the Heat settings. 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. Our Privacy Policy governs the use of your information. 'Fan On' Speed for Trane AH - DoItYourself.com Community Forums to this site, and use it for non-commercial use subject to our terms of use. Heat exchange takes time. In order to measure air flow you could use a flow capture hood, a rotating vane anemometer, or a hot wire anemometer. -The BTU/HR size is selectable between 48,000 42,000 36,000 or 30,000 BTU/HR. I know I need to replace a dying blower motor in a 1992 Trane XL80 gas furnace. Well, it does make sense that lowering the blower speed would reduce its electrical consumption. and our air flow is inadequate to match demand and duct size. home improvement and repair website. Since I first posted this thread, my installer called Trane to get an answer to my original question. You may freely link This is a follow-up to our other article on "Adjusting the Furnace/AC Airflow Speed on a 120v PSC Blower Motor". Proper Fan Speed Setting During Heating Mode -The "Blower-on and Blower-off delay" time period can be selected. Slowly flashing shows your furnace is on and does not need heat. Electric Furnace Sequencer Replacement Instructions for Home Repair The blower is set for 400 cfm for a 4 ton outdoor unit, and comfort-R is not enabled (all factory). Craig is a licensed Teacher of HVACR, Sheet Metal, and Building Maintenance in the State of New Jersey of the USA. homininet 8 mo. What is the result of a higher blower speed? - Houzz and as I recall, you have the HW VP IAQ stat. 3 of the wires will likely terminate with just a twist on cap. Trane is a top rated US company of HVAC systems that offer quality and reliability. Trane TAM7 DIP switch settings Heating Help: The Wall Second-stage auxiliary heating for heat pumps and multi-stage furnaces. In other units, it may be 2, 3, and 4 that are programmed. Wires from the 16 pin plug are connected to this board. Trane. But I'm reasonably sure it uses less to run on high vs low then it uses to run on low vs OFF. Use dish soap and a soft-bristle brush or sponge to remove stuck-on debris. To understand how this works, lets look at the wiring on your furnaces blower. However, they are limited based on the total external static pressure (TESP) in the duct. On the motor, only one of the 5 numbered taps has 24v power at a time based on the speed desired at the control board. Can a furnace with a variable speed blower be used in a multistory house? In humid climates, 350 CFM per ton can be selected in order to remove more moisture from the air. STEP-BY-STEP REPLACEMENT GUIDE Turn off air conditioning / heat from the thermostat. How To Adjust The Fan Speed On A Furnace? - HVACseer.com 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.. 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. Running your furnace fan all the time isn't exactly a bad thing. Know your limits. Air Filters remove dust, lint, pet dander, and other pollutants so you can breathe easier knowing your indoor air quality is better with Trane. HVAC Stages - Trane Home There are often five wire colors coming from your blower to your IFC. Only swap these two wires. 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. All rights reserved. On the furnace / air handler board you should have two wires on the "Y2" connection, assuming a two-stage cooling system. My gas furnace has two options for the blower speed: MED, and MED-HI. (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. A slim, removable cover will reveal the filter location. Your AC or furnace is designed for a specific type of filter. Switch the power back on and test it. There is another way to wire this, but I can not find it back.. Please note that mounting bracket consists of top and bottom brackets joined by 6 metal screws (fig.6.9). Connect and share knowledge within a single location that is structured and easy to search. Slowing the blower speed reduced the noise but I take it you would still like it to be more silent. Trane s9v2 should thermostat control blower speed? - HVAC-Talk: Heating 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. On this control board, there are multiple adjustments for the airflow speeds. I.e., maybe more heat is now escaping through the exhaust. When changing the AC or furnace filter, the arrow should face the furnace and point away from the return duct. You may freely link to this site, and use it for non-commercial use subject to our terms of use. Here are some of them: Better circulation of heated and cooled air. 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 . There are often five wire colors coming from your blower to your IFC. With a one-gallon-per-hour burner nozzle that saves me AT-LEAST 30% on fuel oil plus another 20-30 min of blower run time or at least 30-50% run time savings. variable speed trane blower motor - DIY Home Improvement Forum The airflow adjustments on this board are pictured below. 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. All information is provided "AS IS." Most of these are on the bottom left of the control board. in this thread in this sub-forum in the entire site. No problem with the boiler. She has experience researching and creating a wide range of home improvement and garden projects, and especially enjoys learning about fireplaces and exterior design. First, make sure that power is getting to the motor. Oil Furnaces may have a temp rise of 50-60F. 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. 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) you will get the better dehumidification with the lower setting. He is committed to outdoor cooking in a Bar-B-Q pit he welded together several years ago. One of these wires will be coming from the thermostat and the other will go to the outside unit. Trane XR80 Troubleshooting After examining the flashing system you should check the green light speed. I assume you are speaking about dip switch settings. You can verify the actual CFM by measuring the TESP of the system and comparing it to the manufacturer's airflow data sheet. Roughly 400 CFM is needed for every 1 ton (12,000 BTU/HR) of Heat Removal Capacity in Air Conditioning Systems. 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). The noise is there in heat or AC. Does Nest utilize all the benefits of a communicating furnace, Low speed furnace fan blower motor will not shut off, How to calculate efficiency of old Westinghouse furnace VS new variable speed Furnace. The continuous fan is marked SW3. Access the control board. Does a summoned creature play immediately after being summoned by a ready action? 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. Possibly you could do the same here (turn down blower and gas). Furnace Inducer Motor Making Noise? (Possible Causes & Fixes) Select your preferred wire with the warm temperature and connect it to the 'heat' port. If your home has multiple HVAC systems, there will likely be at least one air filter for each unit. Trane XV80 Blower speed settings - HVAC-Talk: Heating, Air If the blower motor hums, check the blower fan to ensure that it spins freely. 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. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. That said the contractor has no real incentive to get it right. (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! We welcome your comments and suggestions. There are several tutorials on Youtube about how to do this step for specific inducer motor brands. Make sure power is off when doing any adjustment. You have to switch the wires to the blower motor. 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. All Logos & Trademark Belongs To Their Respective Owners, Maintaining temperature over a longer period of time is more efficient than getting a room to temperature quickly, A lower fan speed ensures your heat pump will run for longer periods of time which is required for the system to go into whats called a defrost mode (. 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. XB Trane Furnace Is there a fan speed control on the unit. - JustAnswer Warmup.com mentions that it was the original design of radiant floor heat systems by the Romans. These three are connected to the "Cool", "Heat", and "Fan" terminals on the control board. PSC - The Permanent Split Capacitor Motor is still the most commonly used. Variable Speed Blower Motor ( Genteq 2.3, 16 pin connector). He has several years experience as a professional cabinet builder, and he is an accomplished auto repairman, having operated an auto repair business for many years. It allows three constant fan speeds as well as an automatic fan speed and a variable burn rate and compressor and fan speed. Usually there will be three "speeds" ranging from 40 to 100% of airflow. A properly fitted filter can also trap unwanted, and oftentimes unseen, pollutants from the air in your home, including: Start with the return vent. Use tab to navigate through the menu items. 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. 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!" 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 company offers a variety of furnaces to suits the needs of every home. 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. -The "System Type" is the CFM per ton to be adjusted between low, normal and high. I was reading the Trane XL824 thermostat installation and setup manual. Thoroughly rinse the filter. Solution: Install a new sequencer AND a new fan relay, just to be safe. Now that its gotten cold, we've noticed that several of the heat register barely have any air coming out of them. If you have suggestions or comments they are welcome. The Trane XR80 Furnace - Features | Fire & Ice Air Filter - Be sure to check the air filter and replace if necessary. ECM blower motors do not require an external capacitor to operate. Western VA. Nov 28, 2009. Each is associated with a different blower speed. Filters help protect the many parts of your heating and cooling unit from debris and buildup that can shorten the working life of the system. Sometimes less cmf will give the air more time in the heat exchanger thus letting it get hotter. How can I change the speed of the blower on the Trane model X39641170 - Answered by a verified HVAC Technician . *Based on third party testing of particle removal efficiency down to 0.3 microns (2005). Furnace Blower Motor Replacement Cost - Costimates I connected a second thermostat to the circuit board to run the blower (R to G). When he's not enjoying family time with his wife and three boys, he loves tinkering with projects and geeking out on electronics. Website operating 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. The system might not work properly. For business related inquires email us at info@acservicetech.com. Turn off the emergency HVAC shutoff switch Remove top and bottom cover panels on the air handler / furnace unit (fig.5.1). Sign up for our email newsletter to learn helpful HVAC tips and tricks before your purchase your system. 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 only alternative is to raise the discharge temperature. 01 - Trane Furnace Control Board. Cookie Notice Adjusting the Airflow Speed on ECM Blower Fan Motors! Secure the old speed wire by twisting a wire nut over the end. Your OP was a noise complaint. 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). @Dave: Those were my thoughts as well. Variable Speed Furnaces | Everything You Need to Know | HVAC.com 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. Mine has a wall switch. Can you increase the speed of an ECM AC blower? Changing the fan wire connection between the fan-on relay and the fan motor, selecting a high, medium, or low speed right on the fan motor itself Changing jumper positions on the control board (printed circuit board shown below) in the air handler Changing a dip switch or small slider switch position provided on some air handler control boards 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. You could also use the Temp Rise Formula which you can learn about in our "HVAC Temp Rise Formula used to Measure Airflow CFM" video. Additionally, they can be identified by the presence of a removable module/bell on the end of the motor. How To Adjust Blower Speed on a Furnace | Enerny Diagnostics Can I retrofit a 2-speed or variable speed blower on a Payne PG8UAA forced air furnace? A continuous green light means the IFC circuit board needs replacing. 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. Cut the wire's terminal connector off with wire cutters. You will also see the red E icon under Emergency . How to tell which packages are held back due to phased updates, Linear Algebra - Linear transformation question. By regularly changing your filter, you can improve your indoor air quality and extend the life of your heating and cooling system. To clean a reusable filter, remove the filter from the air cleaning device. Control Humidity by Optimizing Fan Speed | Priority Energy The constant air turn over at a lower set point keeps the house comfortable. The higher the MERV rating, the better the filter is at capturing specific pollutants from the air. XV18 TruComfort Variable Speed Air Conditioner - Trane Residential Bundle Packs are a great way to save and get faster shipping! During "Fan On", the fan runs at 50% of whatever the maximum speed of the fan is. There is no mechanism to change this. Based on some randomly googled comments here: http://www.inspectorsjournal.com/Forum/topic.asp?TOPIC_ID=8998& seems to agree it decreases efficiency but may increase comfort [ex: cold spots or noise level] :). PDF Setting Blower Speeds - Ferguson HVAC Heating, Cooling, Air Conditioning, Ventilation and T-Stat Controls, 3-Speed, 4-Wire Ceiling Fan Switch Wiring. The heat exchanger can be overheated and burned out if the blower does not remove enough heat. 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. 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. How to use Slater Type Orbitals as a basis functions in matrix method correctly? Options are, for example, 4 minutes at 80%, or 30 seconds at 50%. The video will also explain other safety measures, as well as some for a demonstration which I will show. The A/C will run according to the thermostat settings. You need to follow the wiring diagram inside the HVAC unit. Top Ten Interview Tips to Land that HVAC/R Job! On this motor module, the speed wires are red, orange, blue, yellow, and black. 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. View our Privacy Policy here. 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 The blower fan on this blower has four speeds. But, in looking up the manual for this furnace (TUD1B100A9361), it looks like there are 4 blower speeds. The blower/fan seems to be running way to fast. Privacy Policy. They do this by coupling a sophisticated, programmable thermostat to a variable-speed motor. Is It Okay to Run Your Furnace Fan Continuously? A 90 percent-plus furnace needs 150 cfm per 10,000 Btu of input. Now that would turn the blower speed down on you. So if you are actually moving 1250 CFM then you are at 357 CFM/ton, which is a good setup for dehumidifying. If you know what you are doing, it is very simple to adjust the speed of your furnace fan. On the furnace / air handler board you should have two wires on the "Y2" connection, assuming a two-stage cooling system. In the manual, it lists some settings, e.g. Why is there a voltage on my HDMI and coaxial cables? 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? In order for the filter to work properly, the right size is crucial. After a bit of research, (translated: "mad google skills") I found an article claiming that lowering the blower speed may increase efficiency.
