Variable Speed Blower Motor ( Genteq 2.3, 16 pin connector). We have a Trane XL80 furnace manual in pdf version that you can download for free. The variable speed furnace delivers the proper amount of airflow based on the heating and cooling needs of your home. 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. Once you have located the panel, remove it. Step 3: Find the furnace draft inducer. 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? 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. Heat exchange takes time. The constant air turn over at a lower set point keeps the house comfortable. Cockroaches and waterbugs coming in through the vents was my big clue there. and our Bundle Packs are a great way to save and get faster shipping! The blower motor also begins running, but at low rpm. Your R value shouldn't change, and daily average wind speed and precipitation should have a minimal effect on the convection coefficient. Follow us on Facebook for Quick Tips and Updates here! ECM Multi-Speed Blower Motor (Genteq X-13). Thanks for contributing an answer to Home Improvement Stack Exchange! Options are, for example, 4 minutes at 80%, or 30 seconds at 50%. Allow the filter to completely dry before returning it to the device. First, make sure that power is getting to the motor. (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.) Privacy Policy. A slim, removable cover will reveal the filter location. Most homes have a standard split-system air conditioning unit with two main fans. Dave. Air Filter - Be sure to check the air filter and replace if necessary. When you open the panel, it kills the power to the furnace. Most furnaces have a relay switch on the door cover. 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. We recommend our users to update the browser. 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. AC Service Tech HVAC Training is made possible by continued support from our visitors, customers, and support from these Sponsors! 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 blower is set for 400 cfm for a 4 ton outdoor unit, and comfort-R is not enabled (all factory). 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. 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. *Based on third party testing of particle removal efficiency down to 0.3 microns (2005). Making statements based on opinion; back them up with references or personal experience. The control board has relays that regulate the voltage to each component in the furnace. On this control board, there are multiple adjustments for the airflow speeds. 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). you will get the better dehumidification with the lower setting. -The BTU/HR size is selectable between 48,000 42,000 36,000 or 30,000 BTU/HR. Home House & Components Systems Heating & Cooling System Air Conditioners. The blower fan on this blower has four speeds. That said the contractor has no real incentive to get it right. To understand how this works, let's look at the wiring on your furnace's blower. Fortunately, theres a simple fix if you look at your furnaces Integrated Furnace Control (IFC) board. 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 verify the actual CFM by measuring the TESP of the system and comparing it to the manufacturer's airflow data sheet. -The "AC/HP CFM Adjust" is the airflow volume to be set for system, efficiency, comfort. 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. He also builds custom tools for metal working. Questions of a Do It Yourself nature should be submitted to our "DoItYourself.com Community Forums". The ignitor glows. 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. I'm not completely convinced on this, since the claim is made by a company that sells variable speed blowers for retrofitting HVAC systems. Here are some of them: Better circulation of heated and cooled air. 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. I have a Carrier furnace/heat pump with an expensive control thermostat that talks directly to the heat pump. To begin, turn off the power to your furnace. 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. These connected to (park) terminals, which are not used and simply hold those two additional wire speeds. Solution: Install a new sequencer AND a new fan relay, just to be safe. There is no humidistat. Your AC or furnace is designed for a specific type of filter. BarnArtist, locate the wiring schematic on your furnace. Most of these are on the bottom left of the control board. Remove the motor and mounting bracket. This lower blower speed enhances Therefore I again adjusted the speed upward a bit and that seemingly has corrected the problem. According to the manufacturer's documentation, your furnace should have a 3 or 4 speed blower motor. Blower on delay settings, which evidently have an impact on the duration and speed of the blower fan. The question is would the trade-off be in favor of less blower energy consumption and more loss through exhaust, or more blower energy consumption and less loss through exhaust. 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/. There are often five wire colors coming from your blower to your IFC. Where To Find R-22 & R410A Leaks on AC Units! When he's not enjoying family time with his wife and three boys, he loves tinkering with projects and geeking out on electronics. It was working a week ago but just recently when it runs it blows out cold air. In a gas furnace, (the most common type of furnace used in homes) natural gas is ignited in the burner and the flames heat up the heat exchanger. ECM blower motors do not require an external capacitor to operate. Mutually exclusive execution using std::atomic? 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. Connect with our Customer Care team about your products, warranties, and dealer concerns. I was reading the Trane XL824 thermostat installation and setup manual. It is important to know that you cant go by a normal color code to determine the speeds. 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. H.R. You can change the settings for cfm fan speed, but you have to do it manually at the board. Switch the power back on and test it. For business related inquires email us at info@acservicetech.com. All rights reserved. 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. Dealers can answer questions, help you find the right products for your home, and repair your system. Which thermostat wires control the furnace fan? 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. I just had a Trane system installed last week and I've been very happy with it! Adjusting the Airflow Speed on ECM Blower Fan Motors! 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 (. Example: 1200 CFM is needed for a 3 ton 36,000 BTU/HR system. Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin?). Cross country truck driver -- over dimensional freight Adjust the fan speed, and if you're still experiencing problems, contact your local American Standard Customer Care dealer. the module must be a trane furnace model specific programmed and is available separate from the motor. How to change the fan motor speed on a gas furnace grayfurnaceman 148K subscribers Subscribe 190K views 10 years ago Furnace blowers A description of how to change motor speeds with a. 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. Does that have any impact on the efficiency of the unit? ECM Multi-Speed Blower Motor (Broad Ocean Type), For an ECM blower motor with wires exiting the module (shown above), the speed is changed at the control board by moving the colored wire terminals. In order to measure air flow you could use a flow capture hood, a rotating vane anemometer, or a hot wire anemometer. Remove battery from the thermostat (or disconnect thermostat altogether). The noise is there in heat or AC. Connect the common wire to the neutral terminal of the furnace's control board. 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. Changing your HVAC and furnace air filter is a vital part of home maintenance. 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. Soak the filter in warm water in a bathtub or sink. So the blower motor is dead. Then switch the jumper to your desired speed. (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. By accepting all cookies, you agree to our use of cookies to deliver and maintain our services and site, improve the quality of Reddit, personalize Reddit content and advertising, and measure the effectiveness of advertising. There are several tutorials on Youtube about how to do this step for specific inducer motor brands. 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) The wires that are used will determine the speed settings that the motor will run at. Are there downsides to this. How exactly could I test this? Id check that out first. So I continued to play around with different combinations tonight. -The "Blower-on and Blower-off delay" time period can be selected. There are only a few steps required for most units and having the control will allow you to get your unit to give you the service you need. The A/C will run according to the thermostat settings. 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). Comfort R should be off if you are using . There are two types of fan motors found in furnaces: 1.) He has been DIY since childhood and is now a septuagenarian. rev2023.3.3.43278. During the awake hours I Hold the fan speed at either low or medium. Running your furnace fan all the time isn't exactly a bad thing. 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. http://www.inspectorsjournal.com/Forum/topic.asp?TOPIC_ID=8998&, We've added a "Necessary cookies only" option to the cookie consent popup. (Heat transfer wasn't one of my favorite classes in college - I focused more on dynamic systems, sorry.). You have to switch the wires to the blower motor. You may freely link On my furnace the schematic showed there were three speed settings. By pressing "submit", I understand that I am providing express consent for Trane Residential to contact me about this request or similar topics. My heat is running cold! For 240v units, both the L and N are hots. That will give you the most reliable results for your particular system. Before you begin this process it is a good idea to make sure that no power is going to the fan. 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. Second-stage auxiliary heating for heat pumps and multi-stage furnaces. XB Trane Furnace: Is there a fan speed control on the unit. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. Western VA. Nov 28, 2009. 80% would be great for me. Third-stage auxiliary heating for heat pumps and multi-stage furnaces. Press Apply to save and exit. 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. STEP-BY-STEP REPLACEMENT GUIDE Turn off air conditioning / heat from the thermostat. submitted to our "DoItYourself.com Community Forums". Access the control board. - The "Continuous Fan" refers to when the G terminal is powered for the fan only to run. If the ohm meter comes back with an open line reading, the switch is bad and needs replaced. It allows three constant fan speeds as well as an automatic fan speed and a variable burn rate and compressor and fan speed. Now, I haven't done the measurement to learn how much electricity my blower uses on low vs high. 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 . On the furnace / air handler board you should have two wires on the "Y2" connection, assuming a two-stage cooling system. Trane is a top rated US company of HVAC systems that offer quality and reliability. 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). This will show what speed each numbered tap is programmed as. But, in looking up the manual for this furnace (TUD1B100A9361), it looks like there are 4 blower speeds. These three are connected to the "Cool", "Heat", and "Fan" terminals on the control board. Website operating The blower energy draw at a lower speed will be offset by the loss in fan wheel inertia. If you need assistance determining the best filter for your unit, a Trane employee would be happy to assist you. I hope this helps you understand how to adjust the airflow speed on ECM Blower Motors! Stack Exchange network consists of 181 Q&A communities including Stack Overflow, the largest, most trusted online community for developers to learn, share their knowledge, and build their careers. Top Ten Interview Tips to Land that HVAC/R Job! air flow is inadequate to match demand and duct size. Select your preferred wire with the warm temperature and connect it to the 'heat' port. I simply am unable to put my hands on the schematic. The BTU/HR capacity or tonnage of the air conditioning system should be included within the model number of the outdoor unit. Can this be adjusted I miscalculated. Why is there a voltage on my HDMI and coaxial cables? However, a higher MERV rating may not be best for your system. Measured the temperature of the air before the coil and after the coil and used DeltaT (change in temperature) to determine the blower setting. The boiler is feeding a DHW sidearm and furnace plenum HX. The wires are several different colors. 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 system also accounts for blocked vents and dirty furnace filters, and adjusts fan speed as needed to compensate. I understand the reason for slowing the air to remove humidity. I installed a Thermo Control 2000 boiler and first fired it up this Friday. HVAC system for small church has twin Trane XR90 units installed in 2009 to replace a unit with a much larger single blower. Slowly flashing shows your furnace is on and does not need heat. *NOTE* If you attempt this, be absolutely sure that you have no power going to your system, especially before changing wires. Only 3 of the 5 colored wires may be used at a time. Mine has a wall switch. Compatible with Trane systems or any standard HVAC system. Narrowing that hysteresis loop will: Leading to a smaller Hysteresis loop, increasing motor efficiency by reducing iron eddy current losses. American Standard air handler troubleshooting I recently had have a trane xl 90 want to adjust speed of blower fan blower motor has 4 wires white going to neutral black unhooked blue to high speed yellow to I have a Trane Indoor Air Handler Model No. It is about 1300-1400 sq feet, but then the basement was finished at some point, more or less doubling the square footage. During the awake hours I Hold the fan speed at either low or medium. Warmup.com mentions that it was the original design of radiant floor heat systems by the Romans. homininet 8 mo. 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. Remember that CFM stands for Cubic Feet Per Minute. However, they are limited based on the total external static pressure (TESP) in the duct. The gas kicks on and is lit by the ignitor. The constant air turn over at a lower set point keeps the house comfortable. If the terminals are present at the motor module (ECM X-13) you can switch speeds at the blower motor location. 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. 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. One of these wires will be coming from the thermostat and the other will go to the outside unit. If you want to solve the air noise problem, move the return air filters out of their hallway locations back to the upstream side of the return air duct at the furnace. Here are how my dip switches are set: Did the installer tie in a humidistat there on that V/S blower . Identify the blower fan and the speed wires. She has experience researching and creating a wide range of home improvement and garden projects, and especially enjoys learning about fireplaces and exterior design. Black: High; Yellow: Medium-high ; Blue or brown: Medium-low; Red: Low; It only takes a minute to sign up. It had been set on the higher speed, but that was too harsh, so I lowered it to the slower speed. I'll just run the heat pump through the leaky ductwork and heat the crawl space. 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. 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. By clicking '. Cut the wire's terminal connector off with wire cutters. By regularly changing your filter, you can improve your indoor air quality and extend the life of your heating and cooling system. The manual document include instructions and informations on how to troubleshoot the system. Since hot air is much lighter . Anyone? The video will also explain other safety measures, as well as some for a demonstration which I will show. The air handler houses the fan and fan motor and is usually located in the basement or attic. Its not advisable to slow your furnace blower speed. 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. 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. 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. Another common place with a schematic is on the back of the blower fan door. There is another way to wire this, but I can not find it back.. Yes--the efficiency of the heat exchanger will decrease. Remove both of these wires and wire nut them together. 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. The low pitched whine stops when fan is in high speed. He is also an HVACR Contracting Business owner of 16 years and holds an NJ HVACR Master License. Trane XR80 Troubleshooting After examining the flashing system you should check the green light speed. 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.". I have a Trane XV90 propane furnace with a variable speed blower. Remember that a heat pump in heating mode will need to run with roughly the same airflow speed as during AC mode even though it may not be comfortable for the building occupant. Here's hoping for some good answers. Is it Covered Under Homeowners Insurance or a Home Warranty? I just moved into a house with a Trane XR80 furnace (several years old). I'm in the process of re-wiring my blower to run on high with the furnace. According to the company, the slower circulation speed reduces energy consumption by 75%. 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. 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 To understand how this works, lets look at the wiring on your furnaces blower. -The "AUX Heat" makes sure that there is enough airflow when elect strip heat is called. We welcome your comments and 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. A 1.5 ton AC unit may not be large enough to cool the . The blower/fan seems to be running way to fast. Inventor with two patents (weight training – anti-rollback for manual wheelchair) I am just clueless, could it be the thermostat (really old) or something that is going to cost a billion dollars to fix? Wires from the 16 pin plug are connected to this board. I have posted an inquiry under the Air Conditioning forum. The airflow adjustments on this board are pictured below. suggestions. Variable speed furnaces only operate at . . Most of these are on the bottom left of the control board. These blower motor versions can be found in furnaces, air handlers, and packaged units. In order for the filter to work properly, the right size is crucial. 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. one room doesnt get as warm or as cool as the others. These two losses comprise the magnitude of heat losses. 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. I have also measured that on low speed my furnace requires AT-LEAST 1 hour of constant running to raise my home temp by 6 deg F. On high speed it takes 30-40 min. I want to do what is best. 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. The automatic feature rarely kicks in once at set point. No: you will not save on gas/oil costs by running your blower on low. 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). 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. To clean a reusable filter, remove the filter from the air cleaning device. 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 . The NET difference of the above two figures is your savings or cost. I got the sv96 100k btu 2stage furnace with variable fan and the xl18 4ton ac unit. 4TEE3C10A1 That is excessivly loud. I'd like to get some second opinions. We also have quick reference cards for use out in the field! To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 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. Trane. The higher the MERV rating, the better the filter is at capturing specific pollutants from the air. It would have no affect on the Heat settings. He maintains fruit and nut trees along with helping his wife with a vegetable garden. Be sure to check out our previous article on ", If you want to learn about refrigerants and how they work in a system, check out our. It is a Trane S8X1 single stage furnace and air handler, paired with an XR16 3 ton AC unit. (Without enclosing my house in a climate-controlled bubble). When changing the AC or furnace filter, the arrow should face the furnace and point away from the return duct. Then switch the jumper to your desired speed. Copyright A second filter location for most HVAC systems and furnaces is the air handler portion of the system. I have a Trane Variable Speed Air Handler (TWE049E13FB2). Thus, my blower can't be using that much electricity on high. He built every permanent building on his current homestead and did all the plumbing and electrical work. Thanks for the reply.
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