Third-stage auxiliary heating for heat pumps and multi-stage furnaces. Then switch the jumper to your desired speed. Slowly flashing shows your furnace is on and does not need heat. Copyright 1995-document.write(new Date().getFullYear()) MH Sub I, LLC dba Internet Brands. The SW2 indicates the air conditioning size. Access the control board. 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. I'd like to get some second opinions. 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. Craig is a licensed Teacher of HVACR, Sheet Metal, and Building Maintenance in the State of New Jersey of the USA. The most important factor is temperature differential - the difference between the inside temperature and outside temperature. 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? By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. XB Trane Furnace: Is there a fan speed control on the unit. How To Troubleshoot A Trane Furnace | American Home Water & Air HVAC system for small church has twin Trane XR90 units installed in 2009 to replace a unit with a much larger single blower. (Heat transfer wasn't one of my favorite classes in college - I focused more on dynamic systems, sorry.). When he's not enjoying family time with his wife and three boys, he loves tinkering with projects and geeking out on electronics. Possible to change Trane XR80 blower speed? : r/hvacadvice The higher the MERV rating, the better the filter is at capturing specific pollutants from the air. AC Service Tech HVAC Training is made possible by continued support from our visitors, customers, and support from these Sponsors! He maintains fruit and nut trees along with helping his wife with a vegetable garden. DoItYourself.com, founded in 1995, is the leading independent home improvement and repair website. 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). That will give you the most reliable results for your particular system. Identify the blower fan and the speed wires. If the Delta T continues to rise, this is due to low indoor airflow. Variable Speed Blower Motor (Genteq ECM 3.0, 4 pin connector). 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. This control board is out of a variable speed furnace with a modulating gas valve that has a variable speed inducer motor. Top Ten Interview Tips to Land that HVAC/R Job! To start, ECM stands for Electronically Commutated Motor which means that the motor is capable of electronically controlling it's own speed, and therefore CFM, according to the desired output. All rights reserved. The low pitched whine stops when fan is in high speed. They do this by coupling a sophisticated, programmable thermostat to a variable-speed motor. Design Engineer/Project Manager for injection molded plastic company Then switch the jumper to your desired speed. 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. Before you begin this process it is a good idea to make sure that no power is going to the fan. Privacy Policy. Step 2: Remove the panel cover of the furnace. Connect the ohm meter to the pressure switch. You should now see a red E icon in the System Mode screen next to Auto and Heating modes. I have posted an inquiry under the Air Conditioning forum. 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. Air Filters remove dust, lint, pet dander, and other pollutants so you can breathe easier knowing your indoor air quality is better with Trane. 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. Once you have located the panel, remove it. Most furnaces have a relay switch on the door cover. Various advertisements for variable speed high efficiency furnaces call them "more energy efficiency" (note also the difference between a variable speed blower and a high efficiency furnace, they're separate, for instance you can have a variable speed blower on a low efficiency furnace). The manometer tells you the CFM number. Bundle Packs are a great way to save and get faster shipping! Locate the speed wires. 01 - Trane Furnace Control Board. Trane S8X1 single stage - Continuous Fan speed adjustable? The noise of forced air is annoying. How to adjust the fan speed and the new Trane furnaces model - YouTube Certified Welder I think that when it is in enhanced mode the fan only runs at 50%, you can try changing your dip switches to see. to this site, and use it for non-commercial use subject to our terms of use. 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. When one of the taps is powered with 24v, the motor will turn on and run at the selected speed. When it is flashing fast there is heat throughout your home. ECM blower motors do not require an external capacitor to operate. 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 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. The problem is, the furnace control module doesn't use a separate speed when the unit is running in continuous FAN mode. 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. I just moved into a house with a Trane XR80 furnace (several years old). (Without enclosing my house in a climate-controlled bubble). My question was whether the efficiency of heat transfer thru the exchanger would be somewhat compromised due to the reduced airflow. -The "Blower-on and Blower-off delay" time period can be selected. Remove both of these wires and wire nut them together. ASE Certified Master Auto Technician Connect the black wire to the manometer. 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) I'll edit my answer and include the exact parameters I'd record every day for a thorough study. What sort of strategies would a medieval military use against a fantasy giant? Step 3. Typically the colors are: White = neutral speed Red = low speed Yellow = medium speed Black = high speed Roughly 400 CFM is needed for every 1 ton (12,000 BTU/HR) of Heat Removal Capacity in Air Conditioning Systems. If power is getting to the blower motor, but the motor does not run, the motor may be burned out. Trane XR80 Troubleshooting After examining the flashing system you should check the green light speed. We have been heating the crawl space in our house for several winters because the ductwork was all torn up from rats. Proper Fan Speed Setting During Heating Mode Follow us on Facebook for Quick Tips and Updates here! (FYI Filter was clean and furnace was recently serviced all prior to my initial investigation of the short cycling). Shay Tilander is a senior editor at Family Handyman. We have a Trane XL80 furnace manual in pdf version that you can download for free. 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. If you have suggestions or comments they are welcome. The BTU/HR capacity or tonnage of the air conditioning system should be included within the model number of the outdoor unit. Reddit and its partners use cookies and similar technologies to provide you with a better experience. Its not advisable to slow your furnace blower speed. The heat exchanger warms up the incoming air and a blower or air handler sends the warm air throughout the home. If you do, you may not have enough air flow over the heat exchanger, resulting in overheating and eventually a shorter exchanger life span. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. The house has a 3 ton trane xl20i and an xv80 (4 ton max). The blower motor also begins running, but at low rpm. Cross country truck driver -- over dimensional freight In humid climates, 350 CFM per ton can be selected in order to remove more moisture from the air. variable speed trane blower motor - DIY Home Improvement Forum It accounts for the amount of air in circulation for precision airflow. The arrow should point toward the unit. I'm also going to go through and make sure there are no visible leaks or damage to them. Thanks for the reply. Once you cut the power, you can remove the cover of your furnace to get access to the control board. 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. These adjustments can be made by pulling the single wire connector and moving it to another single tab positioned horizontally in each row. The variable speed furnace delivers the proper amount of airflow based on the heating and cooling needs of your home. This will show what speed each numbered tap is programmed as. Euler: A baby on his lap, a cat on his back thats how he wrote his immortal works (origin?). Match the positions to the desired pictures within the manufacturer's installation literature. My heat is running cold! 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. The Trane XR80 Furnace - Features | Fire & Ice New XV80 Trane furnace makes noise when blower runs at low speed. 'Fan On' Speed for Trane AH - DoItYourself.com Community Forums Has anyone done this and can anyone give me a reason why I shouldn't do this? video below! We welcome your comments and By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Is it suspicious or odd to stand by the gate of a GA airport watching the planes? Turn off the power source that is connected to the furnace blower. Locate your thermostat on the page and click System Mode. How to Convert a Furnace Blower Fan Into a Stand Alone Fan, What to Do When a Furnace Blower Fan Won't Start, How to Replace the Resistor on Air Conditioner Blower Fans. Dealers can answer questions, help you find the right products for your home, and repair your system. Inventor with two patents (weight training – anti-rollback for manual wheelchair) Learn more about Stack Overflow the company, and our products. Here are how my dip switches are set: Did the installer tie in a humidistat there on that V/S blower . Check out our free Quizzes to test your knowledge here! American Standard air handler troubleshooting How do I check if this furnace switch the blower to second 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. 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. 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.