Lennox furnace nomenclature

HS23 TXV. HS23 SERIES CONDENSING UNITS EXPANSION VALVE SYSTEMS. 10.10 to 12.05 SEER *11,100 to 65,500 Btuh (3.3 to 19.2 kW) Cooling Capacity 1 thru 5 Tons (3.5 to 17.6 kW) EXISTING NEGATIVE. *ARI and DOE Certified Ratings. Typical Application. FEATURES. Application — HS23 series condensing units feature high efficiency with minimum operating ...

When it comes to purchasing an HVAC system, one of the most well-known brands is Lennox. However, you may have noticed that prices for Lennox systems can vary greatly depending on ...View and Download Lennox GSR14 service information online. GSR14 furnace pdf manual download. Sign In Upload. Download Table of Contents Contents. Add to my manuals. Delete from my manuals. ... Lennox gas furnace user guide (7 pages) Furnace Lennox G61MPV Service Manual. G61mpv series units (109 pages) Furnace Lennox G61MPV Service Manual. Lennox Price Book for a complete list of thermostats. CABINET Conditioned areas insulated with foil faced insulation to minimize heat loss and reduce operating sound levels. Powder paint for maximum durability. Easy service access. PVC (polyvinyl chloride) coated steel wire guard provides complete coil protection. Jan 2, 2023 · You can identify the Lennox furnace age by serial number. But first, you must find the location and be able to read and decode the Lennox nomenclature. When deciding whether to repair or replace your HVAC unit, it’s a good idea to check out the age of the unit first. Lennox HVAC units have a beneficial life up-to 20 years in general. Lennox Model and Serial Nomenclature - Free download as PDF File (.pdf), Text File (.txt) or read online for free. How to identify Lennox HVAC equipment. Lennox Serial Number Nomenclature - Free download as PDF File (.pdf), Text File (.txt) or read online for free. Lennox serial number decoding

be performed by a licensed professional HVAC in­ staller or equivalent, service agency, or the gas sup­ plier ELECTROSTATIC DISCHARGE (ESD) Precautions and Procedures CAUTION Electrostatic discharge can affect elec­ tronic components. Take precautions to neutralize electrostatic charge by touching your hand and tools to metal prior to ...Product Description. Emerson Lennox/Armstrong/Ducane 5-Speed Furnace BLOWER MOTOR. The part # is 60L22 (also 60L2201) & Emerson #K55HXHGB-8639, K55HXDUE-1249. It's 1/2 HP, 115v, 1075 RPM. The motor is 5 5/8" in diameter (Frame 48Y) and mounts with attached mounting "ears". The shaft is 1/2" in diameter and extends 3.25" out of the motor. Lennox Furnace Model Number Nomenclature - ROMA Heating ... Furnace Lennox G40DF(X) SERIES User's Information Manual Lenoxx owner's manual gas furnace g40df(x) series (6 pages) Furnace Lennox G40DF(X) Series User's Information ManualDue to this, Lennox earns its place as our Best Overall pick, with an impressive 100/100 rating (or 5 out of 5 stars). Reviewing Lennox’s furnace lineup, we found a few models that stood out. For example, the ML196E is an excellent choice for its top-of-the-line efficiency ratings at an unbeatable price.local contractor charging me 5K, seems high. Lennox SL280UH110V60C Furnace $7,986 Saint Paul, MN 3889 sq ft. 80% efficiency, this was a builder's home and is insulated extremely well. Vents straight up through the center of the house. Would have to tear open basement ceiling to vent out the side.Welcome to HVAC-Talk.com, a non-DIY site and the ultimate Source for HVAC Information & Knowledge Sharing for the industry professional! ... Is anybody here familiar with the Mammoth nomenclature? Here are the model numbers: DHEBFRC-162-3256-L275-M24 DHEBFRC-171-G256-L275-M25 DHEBFRC-212-G256-L275-M26 Any information would be greatly ...

Product Overview. Merit ML296V Series. Two-Stage, 96% Variable-Speed Gas Furnace that Heats the Home Evenly and Efficiently. At every turn, the ML296V gas furnace is …Brand info that may help determine an age or era. Select one of the drop-down lists below. that corresponds to the 1st letter. of your HVAC brand name. Then make your selection from the Brand Names list. HVAC - A. HVAC - B. HVAC - C. HVAC - D. safety codes. Cooling system has been rated in the Lennox environ-mental test room in accordance with ARI Standard 210/240-89. In addition, unit has been sound rated in the Lennox reverberant sound test room in accordance with ARI Standard 270-84. All -50 & -75 gas input models meet California Nitrogen Oxides (NOx) standards and 507512. ATTENTION SERVICE PERSONNEL AIR HANDLER CONTROL SET-UP GUIDE PLEASE KEEP WITH UNIT FOR FUTURE USE! 7-SEGMENT DISPLAY AND CONFIGURATION GUIDE. Refer to unit installation instruction for details concerning configuration of unit size code and electric heat. Code.

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Large Splits. Lennox offers an extensive line of split system components that provide reliable performance to meet the demands of a variety of commercial applications. Our systems offer the highest efficiency available while reducing energy bills and maximizing comfort. From heat pumps and air conditioners to high-quality air handlers and ...G71mpp series dave lennox signature collection gas furnace mult−position variable capacity (72 pages) Furnace Lennox G24MCE2-45 Installation Instructions Manual. G24mce series (28 pages) Summary of Contents for Lennox G51MP. Page 1 Lennox DuralokPlust aluminized and stainless steel clamshell-type heat ex- changers. G51MP units are available ...Utility Room Installation With cooling coil, return air cabinet and humidifier. Applications — G20E series gas fired furnaces include ten mod-els with input capacities of 50,000, 75,000, 100,000, 125,000 and 150,000 Btuh (14.7, 22.0, 29.3, 36.6 and 44.0 kW) and energy effi-ciencies (AFUE) of 78.0%. G20E models are available with either ...When it comes to maintaining and repairing your Lennox furnace, one of the most important things you can do is order the correct parts. This ensures that your furnace operates effi...Parts. If you're a homeowner looking for a replacement part for your heating or cooling system, look to your local Lennox ® Dealer. They'll have everything you need to get your system back up and running in no time. Lennox Dealers are specially trained to maintain our high quality standards, keep your Lennox system in good working order, and ...

Optional Accessories 36K Derate Kit (045 models only) Allows 045 (44K input) models input to be reduced to 36K. For use with natural gas only. High Altitude Orifice Kits Required …GAS FURNACES ENGINEERING DATA AFUE − up to 92.4% Input − 50,000 to 125,000 Btuh (14.7 to 36.6 kW) Add−on Cooling − 2 to 5 Tons (7.0 to 17.6 kW) Utility Room Installation With cooling coil, electronic air cleaner and humidifier Typical Applications Closet Installation With cooling coil Factory installed Field Wiring Make−Up Box can be ...Furnace filters have an arrow that point to installation towards the evaporator coil, fan and blower motor located inside the air handler. If there are no arrows on the filter, ins...When it comes to keeping your home warm and cozy during the winter months, a reliable furnace is essential. Lennox furnaces are known for their quality and longevity, but like any ...Upgrade your heat, lower your gas bills. The Power Saver™ constant-torque motor design uses less energy in both heating and cooling modes, helping you save on utility bills. Adjusting airflow based on demand makes the ML193E gas furnace up to 46% more efficient than standard motors.INSTALLATION INSTRUCTIONS G1N80BU, GIN80BR, GIN80BT, CG80UB, CG80RB, & CG80TB 80% Gas-Fired Furnace WARNING Improper installation, adjustment, alteration, service or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional information, consult a qualified installer, service agency, or the gas supplier.SL280UHV(X) series units are 80% efficiency gas furnaces used for upflow or horizontal applications only, manufac-tured with Lennox Duralok heat exchangers formed of aluminized steel. SL280UHV(X) units are available in heat-ing capacities of 66,000 to 132,000 Btuh and cooling ap-Service Literature. G40UH (X) series units are mid−efficiency gas furnaces. used for upflow or horizontal applications only, manufac-. tured with Lennox Duralok Plus heat exchangers formed of. aluminized steel. G40UH (X) units are available in heating. capacities of 44,000 to 154,000 Btuh and cooling applica-. tions up to 5 tons.

Step 2: Identifying the Make, Model, Age, and Size. To identify the make, model, age, and size you will need to find the manufacturers label. Do this on the outdoor unit, whether it’s a split system or package system. On a package system it is usually on the right side of the equipment, near where the gas and power connect to the system.

Solar. SunSource® Commercial Energy System5. Factory. Field. Visit us at www.lennox.com For the latest technical information, www.lennoxcommercial.com Contact us at 1-800-4-LENNOX ©2019 Lennox Industries, Inc. (14G47) 2/19 PC92164. 92164_energence_RTU_qr_guide.indd 2. 3/4/19 9:30 AM.This is a link to a pdf of the Lennox HVAC equipment model number nomenclatures. http://www3.lennox.com/pdfs/Lennox_Model_and_Serial_Nomenclature.pdfCREDITS & REBATES 1. 1 Lennox Industries Inc. ( " Lennox " ) is not acting in the capacity of a legal or tax advisor and does not make any representation, warranty, guarantee or other assurance as to whether a particular matchup qualifies or is eligible for a tax credit or rebate. This document has been prepared for informational purposes only ...A ton of air conditioning equals 12,000 BTU, and 48 divided by 12 equals 4, so the data plate below indicates the system is 4 tons. Here's a rundown of the range you will encounter: 18 = 1.5 tons, 24 = 2 tons, 30 - 2.5 tons, 36 = 3 tons, 42 = 3.5 tons, 48 = 4 tons, and 60 = 5 tons. And this is another one that is rated at 2.5 tons.Lennox (NYSE: LII) is a leader in energy-efficient climate-control solutions. Dedicated to sustainability and creating comfortable and healthier environments for our residential and commercial customers while reducing their carbon footprint, we lead the field in innovation with our cooling, heating, indoor air quality, and refrigeration systems.His image helped spread the word about the Lennox Furnace company during the 1940's and 50's. 19 46 Lennox establishes operations in Canada and expands its product line with the introduction of residential central air-conditioning systems. Lennox was the first to manufacture packaged direct multi-zone rooftop units for heating and cooling ...Brand info that may help determine an age or era. Select one of the drop-down lists below. that corresponds to the 1st letter. of your HVAC brand name. Then make your selection from the Brand Names list. HVAC - A. HVAC - B. HVAC - C. HVAC - D.Using 5621M 99989 as an example, the first two digits (56) indicate which of Lennox's several manufacturing facilities produced the unit. The third and fourth digits (21) are the year in which the unit was made — in this case, 2021. The fifth character is a letter representing the month of manufacture, which here is December.FURNACE AGE CHART Amana For tonnage refer to FLA & RLA. For age, use the serial number and the "B-L-A-C-K-H-O-R-S-E" code wherein S=1969, E=70, B=71, L=72. (Of course, now that they've been bought by ... Lennox . Before 1974, the first two digits indicated the year and the next digit indicated the month (Ex. 732xxx = February 1973). Most of ...Lennox (NYSE: LII) is a leader in energy-efficient climate-control solutions. Dedicated to sustainability and creating comfortable and healthier environments for our residential and commercial customers while reducing their carbon footprint, we lead the field in innovation with our cooling, heating, indoor air quality, and refrigeration systems.

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You can find the model and serial numbers (M/N and S/N) for your furnace by removing the top-front service panel and looking to the left side of the interior cabinet or the top of the blower deck, depending on whether your system is an 80% or 90% AFUE unit. Also, the orientation (horizontal or vertical) and flow direction (down or up) of your ... Deciphering the model number shows that this Amana furnace model is an upflow gas furnace with induced draft, a nominal output of 45K Btuh, that it is not NO x certified, and has an airflow capability of three tons. Table 7.2.1 Amana Furnace Model Number Description G U I D 045 C A 30 Product Type Supply Type Furnace Type Model Features Nominal ... Designed to integrate with PureAirTM S air purification system. Digitally-enabled for easy control at your fingertips. Enhanced humidity control for incomparable comfort. Dual-fuel compatible with Lennox® heat pumps for added cost savings. The Quietest And Most Efficient Furnace You Can Buy1. The Quietest Furnace In Its Class2.the furnace, the control and the technician at the same electrostatic potential. Neutralize electro­ static charge by touching hand and all tools on an unpainted unit surface, such as the gas valve or blower deck, before performing any service pro­ cedure. ELECTROSTATIC DISCHARGE (ESD) Precautions and Procedures CAUTIONBuy your horizontal gas furnace on LennoxPros, a trusted HVAC supplier for contractors. HVAC professionals can shop this constant torque unit online at Pros. en. English (EN) Français (FR) ... Lennox Merit ML180E, ML180UH045E36A, 80% AFUE, 44000 BTU, 3 Ton, 1 Stage Heat, Constant Torque Upflow/Horizontal Gas Furnace. Cat # : 81W21.LENNOX CONDENSING UNIT LENNOX HEATING UNIT OR BLOWER COIL EVAPORATOR UNIT DISCONNECT SWITCH (By Others) THERMOSTAT (Optional) C D A SPECIFICATIONS General Dt Model No. HS26018 HS26024 HS26030 HS26036 HS26042 HS26048 HS26060 Data Nominal Tonnage 1.5 2 2.5 3 3.5 4 5 Connections (t)SL280V Variable-Speed Gas Furnace. Up to 80% AFUE. Two-Stage. SilentComfort™ Technology and Sound Absorbing Insulation. Variable Speed. Insulated. SureLight® Silicon Nitride Ignitor. All Dave Lennox Signature® Collection models come with a 10-Year Limited Warranty on compressor and covered components. Furnace heat exchangers offer …What Is Lennox Serial Number Nomenclature? Lennox furnaces have a serial number that indicates the model, year of manufacture, and date of manufacture. For example, a furnace with the serial number D341209-878 would be a 34SEP09 manufactured on Sept. 12th, 2009.. This is important information for you to know when purchasing a new furnace because it helps identify the warranty as well as which ...determine nominal airflow capacity. Manufacturers often code furnace specifications into their model numbers. This appendix illuminates the furnace specifications from manufacturer model numbers. An Amana model number is as an example of how manufacturers code furnace characteristics. Table 7.2.1 shows the Amana model number "GUID045CA30."Heat pumps and ACs typically have a 15-20 year service life expectancy depending on model, manufacturer, installation, and luck. Air conditioners in hot or coastal regions last only 8-12 years. The life expectancy also depends on the brand/quality, location, maintenance, and type of refrigerant.Lennox add-on indoor coils, high-efficiency air cleaners and humidifiers can easily be added to furnace. Shipped factory assembled with all controls installed and wired. Each unit factory test operated to ensure proper operation. NOTE - FURNACES CANNOT BE TWINNED! Zoning Applications The EL296UHV furnace can be used with the Lennox ….

Page 1 1991 Lennox Industries Inc. Litho U.S.A. Corp. 9121-L7 CHA16 Service Literature 2 to 5 TON Revised 02/99 CHA16 SERIES UNITS 2 THROUGH 5 TON UNITS CHA16 series units in the 2-5 ton sizes were introduced in the spring of 1990. The single package cooling units may be used in both residential and commercial applications.These serial numbers can be found on all of Rheem HVAC equipment including furnaces, boilers, air conditioning units, and on Rheem water heaters. ... Following are 7 styles of serial numbers used by Rheem with explanations of the nomenclature and how to decode the manufacture date. Style #1: 10 Characters – A Letter and 9 Numbers ...With the LennoxPros app, looking up warranty information on the job site is fast and easy. Step 1. Sign into the. Step 2. Tap Warranty. Step 3. Tap the barcode icon and scan the barcode on Lennox equipment to bring up the most recent warranty certificate. That's all there is to it. to work smarter, not harder.All G20 units utilize the BCC blower control. The BCC is a printed circuit board which controls the blower and moni tors primary limit and gas valve operation. The control has a non−adjustable, factory preset on" fan timing. Fan off" timings are adjustable. The board is divided into two sec tions, 120 and 24VAC.A British Thermal Unit (Btu) is a measurement of heat energy. One Btu is the amount of heat required to raise one pound of water by one degree Fahrenheit. Btus per hour (Btuh) is the benchmark used to estimate the capacity of heating systems, such as gas furnaces. Lennox® furnaces are available in heating capacities ranging from 30,000 to ...50HZ T−Class Packaged Gas / Electric − 26 to 44 kW / Page 4. FEATURES AND BENEFITS. CONTROLS. Unit Controller Solid−state microprocessor−based control board that provides flexible control of cooling functions. All control voltage is provided via a 24V (secondary) transformer with built−in circuit breaker protection. You may see revision numbers as high as 14 or even 18. The revision number is very important in repair part identification as a -1 unit may have a different motor than a -8 would. Phase or Voltage Requirement. The P indicates the phase or voltage the unit requires. P equals single phase 208-230 volt where a Y would equal 3 phase 208-230 volt or ... Lennox stamps the model numbers and essential product details on its nameplate. Except for gas and oil furnaces, where the data plate is located inside the cabinet, near the vestibule panel. All Lennox products display the model number outside the unit. Keep on reading the article to know more about Lennox model numbers and other related topics.Lennox (NYSE: LII) is a leader in energy-efficient climate-control solutions. Dedicated to sustainability and creating comfortable and healthier environments for our residential and commercial customers while reducing their carbon footprint, we lead the field in innovation with our cooling, heating, indoor air quality, and refrigeration systems.• A Lennox communicating thermostat must be used in communicating applications. • In non-communicating applications, the Lennox ComfortSense® thermostat may be used, as well as other non-communicating thermostats. In all cases, setup is critical to ensure proper system operation. Field wiring for both communicating and non- Lennox furnace nomenclature, Lennox (NYSE: LII) is a leader in energy-efficient climate-control solutions. Dedicated to sustainability and creating comfortable and healthier environments for our residential and commercial customers while reducing their carbon footprint, we lead the field in innovation with our cooling, heating, indoor air quality, and refrigeration systems., and ignitor work in combination to ensure furnace ignition and ignitor durability. The control provides gas ignition, safety checks and indoor blower control with two-stage gas heating. The furnace combustion air inducer, gas valve and indoor blower are controlled in response to various system inputs such as thermostat signal, pressure and ..., Luxaire® has been setting the HVAC standard since 1939. Learn how our industry-leading residential dealer network and world-class commercial support services continue our legacy of comfort. Luxaire® Advantage. Built for Today, and Tomorrow Through a premier line of high-performance heating and air conditioning products, Luxaire® delivers the ..., This is a link to a pdf of the Lennox HVAC equipment model number nomenclatures. http://www3.lennox.com/pdfs/Lennox_Model_and_Serial_Nomenclature.pdf, FEATURES Item GCS24-953 GCS24-1353 GCS24-1603 GCS24-3003 Air Flow Choice — Bottom (down-flow) or horizontal (side) supply and return air Std. Std. Std. Std. Approvals — A.G.A./C.G.A. certified as combination heating/ cooling unit for outdoor installation, bonded for grounding to meet safety standards for, − Blower data is from unit tests conducted in the Lennox Laboratory air test chamber. − Optional electric heaters are UL and ULC listed and are rated and tested according to DOE test procedures and FTC labeling regulations. − Developed in accordance with ISO 9002 quality standards., Jul 23, 2016 · Did a search for “Lennox nomenclature” and 6 relevant results came back including this thread… and no BS! :lol: imayer (Ian Mayer, CMI) October 11, 2016, 4:31am , Enter the 7-digit CP/Serial Number of the boiler to obtain the manufacturing date and any associated information on the product. If the CP# is only 6 digits, enter a leading zero, e.g. 0137718. This look-up will not give manufacturing information for any other Weil-McLain product but boilers., Upgrade your heat, lower your gas bills. The Power Saver™ constant-torque motor design uses less energy in both heating and cooling modes, helping you save on utility bills. Adjusting airflow based on demand makes the ML193E gas furnace up to 46% more efficient than standard motors., HVAC units are identified by their multiple-character model number that identifies a particular type of unit. Below you will find a partial explanation of the alphanumeric identification code (aka Model Number Nomenclature). Our samples have been simplified to concentrate more on the location of each individual units tonnage and air flow ..., Your customers will enjoy the exceptional comfort that comes with reliable Lennox engineering. The ML180's durable, high-quality design ensures long-lasting performance. And with an efficiency rating of 80%, it will save them in energy costs, especially compared to an older furnace. Downflow, Matching Lennox Furnace - Cabinet Width Designation A A A B C 1 Coil & Furnace Cabinet Width - in. 14-1/2 17-1/2 21 Shipping Data - lbs. Uncased 14 19 18 20 25 Cased 27 35 31 39 OPTIONAL ACCESSORIES - order separately Adjustable Coil Adaptor/Seal - Uncased models only (Ten Pack) 11L09 11L09 11L09 11L09 11L09, Lennox (NYSE: LII) is a leader in energy-efficient climate-control solutions. Dedicated to sustainability and creating comfortable and healthier environments for our residential and commercial customers while reducing their carbon footprint, we lead the field in innovation with our cooling, heating, indoor air quality, and refrigeration systems., Are you in need of replacement parts for your Lennox furnace? Finding the right parts can be a challenge, especially if you don’t know where to start. Fortunately, using the model ..., Lennox, Lennox Serial Number Nomenclature | PDF | Furnace | Air Conditioning. Lennox Serial Number Nomenclature - Free download as PDF File (.pdf), Text File (.txt) or read online …, To place GHR26 furnace into operation: GHR26 units are equipped with a SureLight ignition sys- tem. Do not attempt to manually light burners on these fur- naces. Each time thermostat calls for heat, the burners will be automatically lit. Page 4 Filters used inside the GHR26 series unit are available from Lennox and must be ordered separately ..., 2006 Nomenclature GOODMAN FURNACES Airflow Direction Digits 6-8 045 = 45,000 070 = 70.000 090 = 90,000 115 = 115,000 140 = 140,000 Product Description GOODMAN 80% FURNACES Model Number 80% AFUE Single-Stage Multi-Speed . ... Lennox N: Nordyne P: Carrier/Bryant/ Payne R: Rheem/Ruud T: Trane, A variable-speed fan keeps temperature swings to a bare minimum. Two-stage heating saves gas by adjusting the flame size based on demand. Relax. Save money every month. With a 96% efficiency rating, the ML296V gas furnace uses 2/3 less energy than competitive single-speed units so you pay for perfectly heated air, not wasted energy., Furnaces / A ir H andlers OR Furnace C ab. W idth A = 14.5" B = 17.5" C = 21" D = 24.5" X = non-standard E xcept Furnaces / A ir H andlers OR OPTIONAL ID EN TIFIER G round S ource H .P . S upply A ir T = Top D ischarge E = End Blow S = Straight Thru X = Not Used R e tu rn A ir L = Left H and R = Right Hand X = Not Used H eat E xchanger C ..., View and Download Lennox G20 Series user's information manual online. Lenoxx User's Information Manual Gas Furnace G20. G20 Series furnace pdf manual download. Also for: G20e, G20x., In the case of a furnace, you can find its serial number and model number by following a few steps. First, remove the top-front service panel of the furnace. Then in the interior cabin look on the left side of the interior or at the top of the lower deck to find the serial and model number. The interior depends on whether the system is 80 ..., 1 Lennox Industries Inc. (" Lennox" ) is not acting in the capacity of a legal or tax advisor and does not make any representation, warranty, guarantee or other assurance as to whether a particular matchup qualifies or is eligible for a tax credit or rebate.This document has been prepared for informational purposes only and is not intended to provide, and …, Efficient, economical and reliable gas furnace ML180E GAS FURNACE WITH POWER SAVER™ TECHNOLOGY. www.lennox.com 1-800-9-LENNOX For a complete list of the registered and common law trademarks owned by Lennox Industries Inc., please visit www.lennox.com., The ML14XC1 is designed for smart energy use, factory tested, and backed by a robust factory warranty to deliver peace of mind and comfort. Reliable: Lennox Quantum™ Coil Technology will help deliver years of trouble-free operation. High Efficiency: 14 to 16 SEER performance uses 40-60% less energy than a standard air conditioner., Lennox (NYSE: LII) is a leader in energy-efficient climate-control solutions. Dedicated to sustainability and creating comfortable and healthier environments for our residential and commercial customers while reducing their carbon footprint, we lead the field in innovation with our cooling, heating, indoor air quality, and refrigeration systems., The Lennox CB29M and CB30M Elite® series blower coil units are designed for installation with a matched remote outdoor unit and optional field−installed electric heat. The blower coil units are for indoor installation only. The CB29M and CB30M units, designed for multi−position-al installations, are completely assembled at the factory, The reduction of high energy bills for those who are using old, and out-dated furnaces is a priority. It’s possible to do so through the use of high-efficiency forced-hot-air furna..., The use of fixed jumpers that will provide continuous heating is not allowed. The return air duct must be provided and sealed to the furnace. Return air temperature range between 60°F (16°C) and 80°F (27°C) must be maintained. Air filters must be installed in the system and must be maintained during construction., Lennox Merit ML180E, ML180UH045E36A, 80% AFUE, 44000 BTU, 3 Ton, 1 Stage Heat, Constant Torque Upflow/Horizontal Gas Furnace. Cat # : 81W21. Model/Part # : ML180UH045E36A, EL296UHV(X) Revised 06/2021. icomfort®- ENABLED EL296UHV(X) SERIES UNITS. EL296UHV(X) series units are 90% efficiency gas furnaces used for upflow or horizontal applications only, manufac­ tured with Lennox Duralok heat exchangers formed of aluminized steel. EL296UHV(X) units are available in heat­ ing capacities of 44,000 to 132,000 Btuh ..., Lennox Industries Inc. P.O. Box 799900 Dallas, TX 75379-9900 NOTE - This manual must be left with the equipment user. WARNING. Do not set thermostat below 60°F (16°C) in heating mode.Settingthermostat below 60°F (16°C)reduces the number of heating cycles. Damage to the unit may occur that is not covered by the warranty., The Lennox Basic Limited Warranty Program is a voluntary manufacturer's warranty for residential application. No registration is required and terms and coverage details vary according to the products you own: Dave Lennox Signature® Collection Series products. 10 years on covered components. 10 years on compressor.