Move the high-speed wire to low. On my furnace the schematic showed there were three speed settings. video below! Does lowering the blower speed of a forced-air furnace lower its efficiency? Trane XL80 blower motor part number? - DIY Home Improvement Forum 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. I think the best bet would be to actually test it for a few months and see. However, a higher MERV rating may not be best for your system. In order for the filter to work properly, the right size is crucial. Air Conditioner + Furnace Matched Systems, Air Conditioner + Air Handler Matched Systems, Does Your Air Conditioner Smell? Furnace Blower Motor Replacement Cost - Costimates The blower is set for 400 cfm for a 4 ton outdoor unit, and comfort-R is not enabled (all factory). This covers speed adjustment on a PSC motor. Radiant floor heat web sites are mysteriously silent on this simple and cheap modification of pre-exisiting systems to accomplish the same goal. http://www.inspectorsjournal.com/Forum/topic.asp?TOPIC_ID=8998&, We've added a "Necessary cookies only" option to the cookie consent popup. Slowing the blower speed reduced the noise but I take it you would still like it to be more silent. Compatible with Trane systems or any standard HVAC system. Website operating Most homes have a standard split-system air conditioning unit with two main fans. In order to measure air flow you could use a flow capture hood, a rotating vane anemometer, or a hot wire anemometer. If you remove the common and place it on another terminal, it can burn out your motor not how you want the new furnace season to begin. During the awake hours I Hold the fan speed at either low or medium. Step 3: Find the furnace draft inducer. This helps the XR80 conserve more of the heat it produces. Recently I did a blower speed adjustment on the 2nd floor air handler and thought to show how it can be done. 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. 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. Solution: Install a new sequencer AND a new fan relay, just to be safe. This will increase the number. If the terminals are present at the motor module (ECM X-13) you can switch speeds at the blower motor location. However, I like the continually run the fan to even out air temperature in the house. air flow is inadequate to match demand and duct size. 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. Employment/Education Highlights On this board, pins 3, 4, and 5 on the SW1/1 through SW1/8 dip switch block have to do with air flow. Match the positions to the desired pictures within the manufacturer's installation literature. If you have not read that yet, I would encourage you to do so! A 1.5 ton AC unit may not be large enough to cool the . 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. The MERV scale rates filters from 1 to 16. The heat exchanger warms up the incoming air and a blower or air handler sends the warm air throughout the home. You need to follow the wiring diagram inside the HVAC unit. ECM Multi-Speed Blower Motor (Genteq X-13). 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. @Dave: Those were my thoughts as well. There are often five wire colors coming from your blower to your IFC. Note also that there is always just "one blower" but that blower may or may not be variable speed, etc. Check out our free Quizzes to test your knowledge here! (Although it wouldn't hurt to record those too.) Most furnaces have a relay switch on the door cover. Now, I haven't done the measurement to learn how much electricity my blower uses on low vs high. 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. It had been set on the higher speed, but that was too harsh, so I lowered it to the slower speed. Invention prototypes are another of his many accomplishments. Design Engineer/Project Manager for injection molded plastic company 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. The video will also explain other safety measures, as well as some for a demonstration which I will show. Furnace fan air speed-I need a way to slow it down Duct Dynasty: Taking the Guesswork Out of Fan Speed Settings I'm not completely convinced on this, since the claim is made by a company that sells variable speed blowers for retrofitting HVAC systems. one room doesnt get as warm or as cool as the others. The wires are several different colors. I installed a Thermo Control 2000 boiler and first fired it up this Friday. If the blower motor hums, check the blower fan to ensure that it spins freely. 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). PDF Setting Blower Speeds - Ferguson HVAC Can airtags be tracked from an iMac desktop, with no iPhone? Can you increase the speed of an ECM AC blower? On this control board, there are multiple adjustments for the airflow speeds. Cut the wire's terminal connector off with wire cutters. the module must be a trane furnace model specific programmed and is available separate from the motor. H.R. After a bit of research, (translated: "mad google skills") I found an article claiming that lowering the blower speed may increase efficiency. It accounts for the amount of air in circulation for precision airflow. I know I need to replace a dying blower motor in a 1992 Trane XL80 gas furnace. This furnace features the common White-Rodgers Intell-Ignition circuit board. Has anyone done this and can anyone give me a reason why I shouldn't do this? You may freely link One of these wires will be coming from the thermostat and the other will go to the outside unit. 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! 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. How to use Slater Type Orbitals as a basis functions in matrix method correctly? Run a jumper from "R" to "Y2" and the blower will run continuously at the second-stage cooling speed. Your new AC unit is not collecting water (yet) because the anticondensation coating hasn't been compromised (yet); and that's a good thing. It only takes a minute to sign up. One fan is inside the house, and one is outside the home. For 240v units, both the L and N are hots. (new Image()).src = 'https://capi.connatix.com/tr/si?token=2ba02a33-c319-4410-bba7-f8321a13bed3&cid=877050e7-52c9-4c33-a20b-d8301a08f96d'; cnxps.cmd.push(function () { cnxps({ playerId: "2ba02a33-c319-4410-bba7-f8321a13bed3" }).render("00499ba9282e4d1b985fa8af14d29c2b"); }); On my furnace IFC, the black (high speed) wire is connected to the air conditioning (cool) terminal, and yellow (medium-high speed) is connected to the (heat) terminal. XB Trane Furnace Is there a fan speed control on the unit. - JustAnswer I think that when it is in enhanced mode the fan only runs at 50%, you can try changing your dip switches to see. The control board has relays that regulate the voltage to each component in the furnace. 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. Top 10 Spots! 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. View our Privacy Policy here. 4TEE3C10A1 That is excessivly loud. It allows three constant fan speeds as well as an automatic fan speed and a variable burn rate and compressor and fan speed. 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. Recently I did a blower speed adjustment on the 2nd floor air. Please note that mounting bracket consists of top and bottom brackets joined by 6 metal screws (fig.6.9). To learn more, see our tips on writing great answers. Upon initial installation, these dip switches need to be adjusted for the particular unit, size, and application. 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. So the blower motor is dead. How exactly could I test this? 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. How to Replace a Trane Blower Motor - Part 1 - AllThumbsDIY.com 10 Reasons a Blower Fan Won't Start in a Furnace, AC or Heat Pump. The line voltage and 24v common are connected at the top and are labeled as C, L, G, N. The 24v common is C and the ground wire is G. For a 120v unit, the L is the 120v hot and the N is the 120v neutral. Can a furnace with a variable speed blower be used in a multistory house? Air filters are measured by Minimum Efficiency Reporting Values (MERV). If you do, you may not have enough air flow over the heat exchanger, resulting in overheating and eventually a shorter exchanger life span. Also related, with for instance a variable speed furnace, since it runs continuously and reduces "cold spots" you might find you can set it at a lower degree setting than the off/on kind. He farmed commercial garden produce for several years. All information is provided "AS IS." I was reading the Trane XL824 thermostat installation and setup manual. 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. Thanks for all your continued support! At night with an . During "Fan On", the fan runs at 50% of whatever the maximum speed of the fan is. 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 . Since hot air is much lighter . Mine. suggestions. To understand how this works, let's look at the wiring on your furnace's blower. The blower fan on this blower has four speeds. I assume you are speaking about dip switch settings. I'll edit my answer and include the exact parameters I'd record every day for a thorough study. R and BK are tied together. Once you cut the power, you can remove the cover of your furnace to get access to the control board. This will help prevent injury and damage to the furnace fan. Switch the power back on and test it. 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. Comfort R should be off if you are using . Why is there a voltage on my HDMI and coaxial cables? My main questions are. When one of the taps is powered with 24v, the motor will turn on and run at the selected speed. All rights reserved. This control board is out of a variable speed furnace with a modulating gas valve that has a variable speed inducer motor. It provides quieter and more even and comfortable heat than a conventional furnace and doesnt consume electricity unnecessarily. Its time to clear the air. Trane XV80 Blower speed settings - HVAC-Talk: Heating, Air I got the sv96 100k btu 2stage furnace with variable fan and the xl18 4ton ac unit. I have a Trane Variable Speed Air Handler (TWE049E13FB2). Of course all that heat was lost because of the ridiculous number of vents in our foundation. Mutually exclusive execution using std::atomic? 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 control board is at fault, replace it. On this motor module, the speed wires are red, orange, blue, yellow, and black. Remove both of these wires and wire nut them together. 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. Anyone? Most residential furnaces were installed by the low bidder. Copyright 1995-document.write(new Date().getFullYear()) MH Sub I, LLC dba Internet Brands. 'Fan On' Speed for Trane AH - DoItYourself.com Community Forums Thoroughly rinse the filter. Connect the ohm meter to the pressure switch. Should I upgrade to a pcm br compatible thermostat? However, they are limited based on the total external static pressure (TESP) in the duct. He maintains fruit and nut trees along with helping his wife with a vegetable garden. 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. 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. Wires from the 16 pin plug are connected to this board. To recap: The service technician might be able to increase (or decrease) the blower speed, but that would probably lower the AC's cooling efficiency. 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). This will help prevent injury and. 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. The noise of forced air is annoying. What is the result of a higher blower speed? - Houzz These are not switched off but are live all the time. 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. How to change the fan motor speed on a gas furnace - YouTube Why are Suriname, Belize, and Guinea-Bissau classified as "Small Island Developing States"? A MERV rating speaks to the filters ability to capture large particles. I have another question about my new Trane XV95 Furnace. See our Privacy Policy for more information. It is a Trane S8X1 single stage furnace and air handler, paired with an XR16 3 ton AC unit. Bundle Packs are a great way to save and get faster shipping! Example: 1200 CFM is needed for a 3 ton 36,000 BTU/HR system. The hot air will rise and heat the floor from beneath, a DIY form of radiant floor heating. Why is my furnace blower running at low speed? BarnArtist, locate the wiring schematic on your furnace. 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. Stage 3 Aux Heating. The MERV rating is typically printed on the filter packaging, but not necessarily on the filter itself. I have a Trane XV90 propane furnace with a variable speed blower. The blower motor also begins running, but at low rpm. 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.". The airflow adjustments on this board are pictured below. Changing the Blower Speed on a Furnace - YouTube Yes, there is a way to bring up the speed on the air handler.. Sometimes you have to add more ducts to achieve the proper pressure and velocity. Adjusting the Airflow Speed on ECM Blower Fan Motors! Air filters are typically found behind the return vent door, often located in the ceiling or wall in the central portion of your home. After understanding what speed each tap is programmed for, we can make proper airflow adjustments. The NET difference of the above two figures is your savings or cost. Can you increase the speed of an ECM AC blower? Allow the filter to completely dry before returning it to the device. 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. There are two types of fan motors found in furnaces: 1.) I know that it has been done. You can verify the actual CFM by measuring the TESP of the system and comparing it to the manufacturer's airflow data sheet. How to Fix a Pressure Switch Error on a Trane | Hunker There is no humidistat. Identify the blower fan and the speed wires. Trane XL80 Furnace Manual - PDF - Daily Heating and Air Conditioning A continuous green light means the IFC circuit board needs replacing.