Mine has a wall switch. Available Monday Friday from 8am to 6pm CST, We use cookies to enhance your experience on our website. I think that when it is in enhanced mode the fan only runs at 50%, you can try changing your dip switches to see. This will help prevent injury and. 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. Most homes have a standard split-system air conditioning unit with two main fans. 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 . Blower on delay settings, which evidently have an impact on the duration and speed of the blower fan. The video will also explain other safety measures, as well as some for a demonstration which I will show. you will get the better dehumidification with the lower setting. If the blower motor hums, check the blower fan to ensure that it spins freely. The ohm meter should read very close to zero. Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? 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. By pressing "submit", I understand that I am providing express consent for Trane Residential to contact me about this request or similar topics. 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. 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 have to switch the wires to the blower motor. When the system calls for heat and the inducer fan begins to run, check each pressure switch terminal. But you will have a tough time measuring either on your basement Trane. 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. Home Improvement Stack Exchange is a question and answer site for contractors and serious DIYers. 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. Air Filters remove dust, lint, pet dander, and other pollutants so you can breathe easier knowing your indoor air quality is better with Trane. I simply am unable to put my hands on the schematic. We welcome your comments and suggestions. Step 3: Adjust the Pulley on the Blower Drive 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. Black: High; Yellow: Medium-high ; Blue or brown: Medium-low; Red: Low; 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. There are often five wire colors coming from your blower to your IFC. Well, it does make sense that lowering the blower speed would reduce its electrical consumption. 4TEE3C10A1 That is excessivly loud. 80% would be great for me. He owned and operated a manufacturing business building Compact Utility Vehicles for homeowner use. The hot air will rise and heat the floor from beneath, a DIY form of radiant floor heating. 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. This is NOT a user servicable item. It is important to know that you cant go by a normal color code to determine the speeds. Western VA. Nov 28, 2009. How exactly could I test this? We recommend our users to update the browser. Yes: you will save electricity costs by running your blower on low. I think the best bet would be to actually test it for a few months and see. Questions of a Do It Yourself nature should be To clean a reusable filter, remove the filter from the air cleaning device. Does that have any impact on the efficiency of the unit? Variable Speed Blower Motor (Genteq ECM 3.0, 4 pin connector). I'll just run the heat pump through the leaky ductwork and heat the crawl space. The problem is, the furnace control module doesn't use a separate speed when the unit is running in continuous FAN mode. I.e., maybe more heat is now escaping through the exhaust. 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). Why is my furnace blower running at low speed? Variable Speed units continuously communicate with each other and your Trane thermostat to provide optimal efficiency. Its a common occurrence in the heat of the summer or the cold of the winter one room doesnt get as warm or as cool as the others. 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] :). Wires from the 16 pin plug are connected to this board. CFM stands for "cubic feet per minute." After understanding what speed each tap is programmed for, we can make proper airflow adjustments. 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. If the Delta T continues to rise, this is due to low indoor airflow. That said the contractor has no real incentive to get it right. 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. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. 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. Trane s9v2 should thermostat control blower speed? This will allow you to access the control board. with a wiring harness for the fan. the module must be a trane furnace model specific programmed and is available separate from the motor. *NOTE* If you attempt this, be absolutely sure that you have no power going to your system, especially before changing wires. Home House & Components Systems Heating & Cooling System Air Conditioners. Does lowering the blower speed of a forced-air furnace lower its efficiency? Now that would turn the blower speed down on you. XB Trane Furnace: Is there a fan speed control on the unit. I just moved into a house with a Trane XR80 furnace (several years old). In terms of heat pumps, running the external blower faster may reduce i2r copper losses and hysteresis iron eddy current losses. Remove the air handler. 01 - Trane Furnace Control Board. For 240v units, both the L and N are hots. 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/. 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. The control board has relays that regulate the voltage to each component in the furnace. New XV80 Trane furnace makes noise when blower runs at low speed. A 90 percent-plus furnace needs 150 cfm per 10,000 Btu of input. Tools that we use: www.amazon.com/shop/acservicetech. I was reading the Trane XL824 thermostat installation and setup manual. Therefore I again adjusted the speed upward a bit and that seemingly has corrected the problem. The variable speed furnace delivers the proper amount of airflow based on the heating and cooling needs of your home. Website operating I have posted an inquiry under the Air Conditioning forum. Certified Welder That will give you the most reliable results for your particular system. He maintains fruit and nut trees along with helping his wife with a vegetable garden. Oil Furnaces may have a temp rise of 50-60F. 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. He has been DIY since childhood and is now a septuagenarian. Turn off the emergency HVAC shutoff switch Remove top and bottom cover panels on the air handler / furnace unit (fig.5.1). You will need to find the main cover panel on your fan. I installed a Thermo Control 2000 boiler and first fired it up this Friday. Yes--the efficiency of the heat exchanger will decrease. 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. 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. Continue reading to learn how to lower the fan speed. (FYI Filter was clean and furnace was recently serviced all prior to my initial investigation of the short cycling). Published: 05/19/2021 Author: Craig Migliaccio, About the Author: Craig is the owner of AC Service Tech LLC and the Author of the book Refrigerant Charging and Service Procedures for Air Conditioning. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. The following list refers to each adjustment starting from the bottom and moving upward. 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. The blower is set for 400 cfm for a 4 ton outdoor unit, and comfort-R is not enabled (all factory). If the terminals are present at the motor module (ECM X-13) you can switch speeds at the blower motor location. Locate the speed wires. When changing the AC or furnace filter, the arrow should face the furnace and point away from the return duct. 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. Disconnect between goals and daily tasksIs it me, or the industry? - Answered by a verified HVAC Technician . This furnace features the common White-Rodgers Intell-Ignition circuit board. This value is then multiplied by 150 cfm to obtain the required airflow for the furnace in heating operation. I am currently heavily invested in studying and learning the subject as I commit myself to reducing my winter energy costs this year. 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. 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. I have a Carrier furnace/heat pump with an expensive control thermostat that talks directly to the heat pump. 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. Sometimes you have to add more ducts to achieve the proper pressure and velocity. Identify those arcade games from a 1983 Brazilian music video. 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. I know I need to replace a dying blower motor in a 1992 Trane XL80 gas furnace. These three are connected to the "Cool", "Heat", and "Fan" terminals on the control board. Example: Rated Btu Input = 60,000 / 10,000 = 6 x 150 = 900 cfm of required furnace airflow. Proper duct sizing can resolve the issue you are having. A continuous green light means the IFC circuit board needs replacing. Related: a two stage furnace works by actually shooting less gas out, which might improve its efficiency. Remove both of these wires and wire nut them together. 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. Website operating problems contact Webmaster. The manometer tells you the CFM number. Typical setups include these wire colors with associated blower speeds. 3.5 x 400 = 1400 CFM. 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. I got the sv96 100k btu 2stage furnace with variable fan and the xl18 4ton ac unit. It shouldn't take more than a few minutes a day to record the data anyway. 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. Inventor with two patents (weight training – anti-rollback for manual wheelchair) At night with an even lower set point I switch the fan speed to automatic. A MERV 16 filters particles at a level near that or a HEPA. Upon initial installation, these dip switches need to be adjusted for the particular unit, size, and application. This is done so that the maximum amount of heat is gained in the building from the refrigerant. Know your limits. How to tell which packages are held back due to phased updates, Linear Algebra - Linear transformation question.
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