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I'm also going to go through and make sure there are no visible leaks or damage to them. 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. Measured the temperature of the air before the coil and after the coil and used DeltaT (change in temperature) to determine the blower setting. Recently I did a blower speed adjustment on the 2nd floor air. This is NOT a user servicable item. Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin?). These blower motor versions can be found in furnaces, air handlers, and packaged units. Now that would turn the blower speed down on you. I assume you are speaking about dip switch settings. Follow us on Facebook for Quick Tips and Updates here! My heat is running cold! (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.) These blower motor speeds are programmed at the manufacturer's factory for the specific equipment model number unit it is installed in. enjoys making jams and jellies during fruit season along with cooking meals. Click On under Emergency Heat. This lower blower speed enhances The product data guide, and label on the inside panel indicate the air . Certified Welder The blower is set for 400 cfm for a 4 ton outdoor unit, and comfort-R is not enabled (all factory). Now, I haven't done the measurement to learn how much electricity my blower uses on low vs high. ago. 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. Air Filters remove dust, lint, pet dander, and other pollutants so you can breathe easier knowing your indoor air quality is better with Trane. 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. Radiant floor heat web sites are mysteriously silent on this simple and cheap modification of pre-exisiting systems to accomplish the same goal. 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. Additionally, they can be identified by the presence of a removable module/bell on the end of the motor. But I guess my question is, can the air flow problem really be a simple as upping the blower speed? Continue reading to learn how to lower the fan speed. He built every permanent building on his current homestead and did all the plumbing and electrical work. The gas is shut off and the induction motor stops running while the blower . 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) Any takers? The house has a 3 ton trane xl20i and an xv80 (4 ton max). 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. Mine. Privacy Policy. The system might not work properly. One fan is inside the house, and one is outside the home. (Although it wouldn't hurt to record those too.) 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). There are often five wire colors coming from your blower to your IFC. Each is associated with a different blower speed. During the awake hours I Hold the fan speed at either low or medium. The video will also explain other safety measures, as well as some for a demonstration which I will show. CFM stands for "cubic feet per minute." Change the speed. 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. A 1.5 ton AC unit may not be large enough to cool the . 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. All rights reserved. Variable Speed units continuously communicate with each other and your Trane thermostat to provide optimal efficiency. For more information, please see our (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! If the furnace manufacturer supplies different burners for that unit you may be risking premature failure. In the example of an ECM 3.0 with a 4 pin connector, the wires are not switched or moved to adjust the airflow settings. 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. The most important factor is temperature differential - the difference between the inside temperature and outside temperature. The S8X1 blower has 9 speeds. The control board is communicating with the blower module in order to determine the airflow volume needed. The NET difference of the above two figures is your savings or cost. Variable Speed Blower Motor (Genteq ECM 3.0, 4 pin connector). Bundle Packs are a great way to save and get faster shipping! Website operating problems contact Webmaster. We are no longer supporting IE (Internet Explorer). Black: High; Yellow: Medium-high ; Blue or brown: Medium-low; Red: Low; 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. Running your furnace fan all the time isn't exactly a bad thing. home improvement and repair website. No need for direct trane replacment motor. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. 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 (. If the blower motor hums, check the blower fan to ensure that it spins freely. When he's not enjoying family time with his wife and three boys, he loves tinkering with projects and geeking out on electronics. I'd go with logging temperature differential (inside temp - outside temp) vs. energy consumption every day for a month with the blower on high and then for a month with the blower on low. Where To Find R-22 & R410A Leaks on AC Units! According to the company, the slower circulation speed reduces energy consumption by 75%. Thus, my blower can't be using that much electricity on high. Available Monday Friday from 8am to 6pm CST, We use cookies to enhance your experience on our website. . In terms of heat pumps, running the external blower faster may reduce i2r copper losses and hysteresis iron eddy current losses. Compatible with Trane systems or any standard HVAC system. Making statements based on opinion; back them up with references or personal experience. Check out our free Quizzes to test your knowledge here! The fan speed is controlled on the control board for the furnace. Step 2: Remove the panel cover of the furnace. Here's what to record, in order of importance: The last two (5 and 6) aren't as important, but more data is always better. Here are some of them: Better circulation of heated and cooled air. He farmed commercial garden produce for several years. 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. View our Privacy Policy here. The MERV scale rates filters from 1 to 16. Related: a two stage furnace works by actually shooting less gas out, which might improve its efficiency. Match the positions to the desired pictures within the manufacturer's installation literature. 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. Turn off the power source that is connected to the furnace blower. Test the new speed. Available from Trane Dealers in select locations. Most require that you open a box (2 screws?) Air Conditioner + Furnace Matched Systems, Air Conditioner + Air Handler Matched Systems, Does Your Air Conditioner Smell? 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. It is important to know that you cant go by a normal color code to determine the speeds. Identify those arcade games from a 1983 Brazilian music video. The hot air will rise and heat the floor from beneath, a DIY form of radiant floor heating. I know I need to replace a dying blower motor in a 1992 Trane . Heating, Cooling, Air Conditioning, Ventilation and T-Stat Controls, 3-Speed, 4-Wire Ceiling Fan Switch Wiring. 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). 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! It provides quieter and more even and comfortable heat than a conventional furnace and doesnt consume electricity unnecessarily. 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). These two losses comprise the magnitude of heat losses. You need to find the wires that determine blower speed inside your furnace. On the furnace / air handler board you should have two wires on the "Y2" connection, assuming a two-stage cooling system. Trane. 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. Turn off power at the main electric panel. If you are having problems, find your fans users manual and use it as a guide. 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. Usually there will be three "speeds" ranging from 40 to 100% of airflow. 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.". 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. (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. 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. On this board, pins 3, 4, and 5 on the SW1/1 through SW1/8 dip switch block have to do with air flow. I'm getting a new s9v2. All rights reserved. Air filters are typically found behind the return vent door, often located in the ceiling or wall in the central portion of your home. charts are usually found on the air handler inside door to controls. After a bit of research, (translated: "mad google skills") I found an article claiming that lowering the blower speed may increase efficiency. I'm not in enhanced mode. Stage 2 Aux Heating. The wires that are used will determine the speed settings that the motor will run at. Check out www.acservicetech.com/store. It is a Trane S8X1 single stage furnace and air handler, paired with an XR16 3 ton AC unit. It only takes a minute to sign up. Learn more about Stack Overflow the company, and our products. Connect the black wire to the manometer. Typical setups include these wire colors with associated blower speeds. Website operating Turn off the emergency HVAC shutoff switch Remove top and bottom cover panels on the air handler / furnace unit (fig.5.1). This covers speed adjustment on a PSC motor. I installed a Thermo Control 2000 boiler and first fired it up this Friday. The company offers a variety of furnaces to suits the needs of every home. Does a summoned creature play immediately after being summoned by a ready action? A 90 percent-plus furnace needs 150 cfm per 10,000 Btu of input. lower efficiency furnace) it is drafting exhaust up the flue which can't be good. Dave. I understand the reason for slowing the air to remove humidity. In the manual, it lists some settings, e.g. Does that have any impact on the efficiency of the unit? The constant air turn over at a lower set point keeps the house comfortable. 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. homininet 8 mo. Ilook forward to responding to many more! The constant torque/multispeed motor will have the smallest module. If the pressure switch is functioning properly . 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. 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. to this site, and use it for non-commercial use subject to our terms of use. 4TEE3C10A1 That is excessivly loud. Should I upgrade to a pcm br compatible thermostat? bean. Carefully disconnect the wires from the coolant terminal, which is located on the back of the unit. Test your knowledge with our 1,000 question workbook along with the answer key! It allows three constant fan speeds as well as an automatic fan speed and a variable burn rate and compressor and fan speed. You will need to look at what the programmed speed designations are for M1/M2/M3/M4/M5 on the wiring diagram of the HVAC unit. Remove two screws from each bracket leg holding the motor. In humid climates, 350 CFM per ton can be selected in order to remove more moisture from the air. Locate your thermostat on the page and click System Mode. This will allow you to access the control board. All information is provided "AS IS." I have posted an inquiry under the Air Conditioning forum. If the blower motor is burned out, replace it. 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. Of course all that heat was lost because of the ridiculous number of vents in our foundation. There are several tutorials on Youtube about how to do this step for specific inducer motor brands. Thoroughly rinse the filter. Cut the wire's terminal connector off with wire cutters. Allow the filter to completely dry before returning it to the device. The gas kicks on and is lit by the ignitor. You will need to find the main cover panel on your fan. 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. one room doesnt get as warm or as cool as the others. When the humidity is high for what its set at. I know that it has been done. Most of these are on the bottom left of the control board. The installation guide clearly describes how to set airflow for heating mode and cooling mode. But, in looking up the manual for this furnace (TUD1B100A9361), it looks like there are 4 blower speeds. The air handler houses the fan and fan motor and is usually located in the basement or attic. You may freely link Has anyone done this and can anyone give me a reason why I shouldn't do this? 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. I just had a Trane system installed last week and I've been very happy with it! To clean a reusable filter, remove the filter from the air cleaning device. Know your limits. We have been heating the crawl space in our house for several winters because the ductwork was all torn up from rats. Thanks for the reply. @Dave: Those were my thoughts as well. It is about 1300-1400 sq feet, but then the basement was finished at some point, more or less doubling the square footage. Yes--the efficiency of the heat exchanger will decrease. There are two types of fan motors found in furnaces: 1.) Anyone? 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. Are there downsides to this. allows the furnace's circulator blower to operate at a slightly lower speed (85% of desired speed) during a combined thermostat call for cooling and dehumidistat call for dehumidification. These connected to (park) terminals, which are not used and simply hold those two additional wire speeds. 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. A slim, removable cover will reveal the filter location. How to tell which packages are held back due to phased updates, Linear Algebra - Linear transformation question. Disconnect between goals and daily tasksIs it me, or the industry? He is committed to outdoor cooking in a Bar-B-Q pit he welded together several years ago. You will also see the red E icon under Emergency . On this control board, there are multiple adjustments for the airflow speeds. low would be 350 CFMs/ton, medium 400 CFMs/ton, high 450 CFMs/ton. I was reading the Trane XL824 thermostat installation and setup manual. (Heat transfer wasn't one of my favorite classes in college - I focused more on dynamic systems, sorry.). Yes: you will save electricity costs by running your blower on low. Example: 1200 CFM is needed for a 3 ton 36,000 BTU/HR system. Your new AC unit is not collecting water (yet) because the anticondensation coating hasn't been compromised (yet); and that's a good thing. http://www.inspectorsjournal.com/Forum/topic.asp?TOPIC_ID=8998&, We've added a "Necessary cookies only" option to the cookie consent popup. Once you have located the panel, remove it. You have to switch the wires to the blower motor. 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). These adjustments can be made by pulling the single wire connector and moving it to another single tab positioned horizontally in each row. In order to measure air flow you could use a flow capture hood, a rotating vane anemometer, or a hot wire anemometer. 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. I thought of a way to prevent the nasty smell been coming through the vents, keep the cockroaches and rats out, and heat the house without having to go down and repair the ductwork, all at the same time: seal up the foundation vents with insulation and replace the thermostat with a remote bulb thermostat locating the sensor under the house. This furnace features the common White-Rodgers Intell-Ignition circuit board. Remove both of these wires and wire nut them together. HVAC filters help remove dust, dander, and harmful particles from the air inside your home. 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. By clicking '. Connect the common wire to the neutral terminal of the furnace's control board. 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. Most residential furnaces were installed by the low bidder. In the example above, an ECM 2.3 16 pin variable speed motor is connected to an air handler control board. According to the manufacturer's documentation, your furnace should have a 3 or 4 speed blower motor. Adjusting the Airflow Speed on ECM Blower Fan Motors! I am currently heavily invested in studying and learning the subject as I commit myself to reducing my winter energy costs this year. My gas furnace has two options for the blower speed: MED, and MED-HI. (FYI Filter was clean and furnace was recently serviced all prior to my initial investigation of the short cycling). 3 of the wires will likely terminate with just a twist on cap. Variable Speed Blower Motor ( Genteq 2.3, 16 pin connector). 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. The following list refers to each adjustment starting from the bottom and moving upward. 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. 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. Connect with our Customer Care team about your products, warranties, and dealer concerns. On the furnace / air handler board you should have two wires on the "Y2" connection, assuming a two-stage cooling system. The automatic feature rarely kicks in once at set point. The airflow adjustments on this board are pictured below. I got the sv96 100k btu 2stage furnace with variable fan and the xl18 4ton ac unit. I know I need to replace a dying blower motor in a 1992 Trane XL80 gas furnace. Here's hoping for some good answers. Why do many companies reject expired SSL certificates as bugs in bug bounties? Which thermostat wires control the furnace fan? Electric Furnace Sequencer Replacement Instructions for Home Repair Blower fan will not run: A failing sequencer may have a burnt contact and is unable to switch the fan and heating coils ON. This will show what speed each numbered tap is programmed as. Before you begin this process it is a good idea to make sure that no power is going to the fan. Switch the Jumper On most control boards there will be a jumper that is marked to show that it controls the speed. If your home has multiple HVAC systems, there will likely be at least one air filter for each unit. By regularly changing your filter, you can improve your indoor air quality and extend the life of your heating and cooling system. I guess you are talking about a 3 speed direct drive motor with 1/2 shaft. 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. Asking for help, clarification, or responding to other answers. We welcome your comments and Your OP was a noise complaint. One of these wires will be coming from the thermostat and the other will go to the outside unit. Typical setups include these wire colors with associated blower speeds. Can this be adjusted BarnArtist, locate the wiring schematic on your furnace. Top Ten Interview Tips to Land that HVAC/R Job! Western VA. Nov 28, 2009. 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. No: you will not save on gas/oil costs by running your blower on low. Divide the rated Btu input by 10,000. How to Lower the Ouptut of Oversized Furnace. All information is provided "AS IS." Top 10 Spots! There is another way to wire this, but I can not find it back.. To switch the jumper, you will need to hold onto it gently as you pull it out of its current setting.