He owned and operated a manufacturing business building Compact Utility Vehicles for homeowner use. That said the contractor has no real incentive to get it right. My gas furnace has two options for the blower speed: MED, and MED-HI. A second filter location for most HVAC systems and furnaces is the air handler portion of the system. Heres What It Means, Why You Should Monitor the Humidity Levels In Your Home. When the R-G circuit is made, the blower motor operates on heating speed. Air Conditioner + Furnace Matched Systems, Air Conditioner + Air Handler Matched Systems, Does Your Air Conditioner Smell? Yes: you will save electricity costs by running your blower on low. Trane XR80 Troubleshooting After examining the flashing system you should check the green light speed. We have a Trane XL80 furnace manual in pdf version that you can download for free. 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. The gas is shut off and the induction motor stops running while the blower . Remove the air handler. 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. We welcome your comments and When changing the AC or furnace filter, the arrow should face the furnace and point away from the return duct. Invention prototypes are another of his many accomplishments. Measured the temperature of the air before the coil and after the coil and used DeltaT (change in temperature) to determine the blower setting. This lower blower speed enhances Allow the filter to completely dry before returning it to the device. 1995-2023 MH Sub I, LLC dba Internet Brands. 01 - Trane Furnace Control Board. It wasn't the noise that was bothering me, it was the desert-like sensation of swirling dry air. He built every permanent building on his current homestead and did all the plumbing and electrical work. Slowing the blower speed reduced the noise but I take it you would still like it to be more silent. Options are, for example, 4 minutes at 80%, or 30 seconds at 50%. 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. 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] :). If you really wanted to be scientific, you could perform an experiment and post the results here. The wire's color will determine the speed settings that the motor will run at. Then switch the jumper to your desired speed. I am currently heavily invested in studying and learning the subject as I commit myself to reducing my winter energy costs this year. The heat exchanger warms up the incoming air and a blower or air handler sends the warm air throughout the home. One of these wires will be coming from the thermostat and the other will go to the outside unit. . The most important factor is temperature differential - the difference between the inside temperature and outside temperature. Bundle Packs are a great way to save and get faster shipping! Variable Speed Blower Motor ( Genteq 2.3, 16 pin connector). 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. Copyright Change the speed. home improvement and repair website. The installation instructions for this furnace are needed in order to be able to know how to set these dip switches. The constant air turn over at a lower set point keeps the house comfortable. Trane. Proper duct sizing can resolve the issue you are having. Put the air handler back. This control board is out of a variable speed furnace with a modulating gas valve that has a variable speed inducer motor. Cookie Notice The house has a 3 ton trane xl20i and an xv80 (4 ton max). in this thread in this sub-forum in the entire site. I want to do what is best. You may freely link to this site, and use it for non-commercial use subject to our terms of use. These connected to (park) terminals, which are not used and simply hold those two additional wire speeds. Here's the sequence: Furnace gets call for heat. Press Apply to save and exit. Black: High; Yellow: Medium-high ; Blue or brown: Medium-low; Red: Low; The product data guide, and label on the inside panel indicate the air . This is a follow-up to our other article on "Adjusting the Furnace/AC Airflow Speed on a 120v PSC Blower Motor". This BTU/HR capacity should be used to set the CFM for the indoor blower motor. These blower motor versions can be found in furnaces, air handlers, and packaged units. Radiant floor heat web sites are mysteriously silent on this simple and cheap modification of pre-exisiting systems to accomplish the same goal. Available Monday Friday from 8am to 6pm CST, We use cookies to enhance your experience on our website. 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. It helps to have over 50 years of farming and ranching experience. Then, carefully switch it to the setting of your choice and push it back into the control board. That is incorrect. 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. Know your limits. Follow us on Facebook for Quick Tips and Updates here! video below! 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 (. 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). 3.5 x 400 = 1400 CFM. For 240v units, both the L and N are hots. The BTU/HR capacity or tonnage of the air conditioning system should be included within the model number of the outdoor unit. Again, this can usually be found in the upper-left corner. Trane is a top rated US company of HVAC systems that offer quality and reliability. Locate your thermostat on the page and click System Mode. 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. The air handler houses the fan and fan motor and is usually located in the basement or attic. Continue reading to learn how to lower the fan speed. There are two types of fan motors found in furnaces: 1.) How do I check if this furnace switch the blower to second speed. (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.) Its time to clear the air. At night with an even lower set point I switch the fan speed to automatic. with a wiring harness for the fan. I know that it has been done. 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. (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. http://www.inspectorsjournal.com/Forum/topic.asp?TOPIC_ID=8998&, We've added a "Necessary cookies only" option to the cookie consent popup. Stage 3 Aux Heating. 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. Why do many companies reject expired SSL certificates as bugs in bug bounties? Disconnect between goals and daily tasksIs it me, or the industry? There is no humidistat. ECM blower motors do not require an external capacitor to operate. 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. How to use Slater Type Orbitals as a basis functions in matrix method correctly? Oil Furnaces may have a temp rise of 50-60F. 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! Proper returns are rarely a thought. 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. The A/C will run according to the thermostat 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. He maintains fruit and nut trees along with helping his wife with a vegetable garden. Slowly flashing shows your furnace is on and does not need heat. The blower motor also begins running, but at low rpm. 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? I think I had it on my hard drive, and the hard drive crashed on us last winter. Being an bms/controls guy I rarely have enough cfm in large buildings. 10 Reasons a Blower Fan Won't Start in a Furnace, AC or Heat Pump. I guess you are talking about a 3 speed direct drive motor with 1/2 shaft. Stage 2 Aux Heating. 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. Can airtags be tracked from an iMac desktop, with no iPhone? We welcome your comments and suggestions. If you have any questions or need assistance, please contact Trane Home Customer Support via email at [email protected] or call 1-877-288-7707, Monday-Friday 9 . After understanding what speed each tap is programmed for, we can make proper airflow adjustments. Switched it to heat (in which case the furnace board is in control of the fan, not the stat) - got fire, no fan. Certified Welder When it is flashing fast there is heat throughout your home. How can I check before my flight that the cloud separation requirements in VFR flight rules are met? 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. DoItYourself.com, founded in 1995, is the leading independent I'm in the process of re-wiring my blower to run on high with the furnace. He is experienced in wood and metal construction, having designed and built several houses and metal buildings. How to tell which packages are held back due to phased updates, Linear Algebra - Linear transformation question.