Lennox furnace installation manual

April 28, 2022. We had the Lennox Elite Series EL296V, 2-stage, variable speed, high efficiency gas furnace installed 3 weeks ago. This unit is much more quiet than the 20 year old Rheem 90 series that it replaced. It took approximately one week for the "new burner" smell to go away. We also replaced our old manual thermostat with an EcoBee ...

Lennox furnace installation manual. Lennox, makes people feel comfortable in their homes. Lennox makes the air cooler, warmer, dryer, cleaner and better, with innovation. Service and repair parts for all your Lennox heating and air-conditioning equipment are here at HvacPartsShop.com. Need technical assistance? Contact us via Live Chat or call us at 1-866-215-3831.

View and Download Lennox ML196UHE installation instructions manual online. ML196UHE furnace pdf manual download. Also for: Merit series, Ml196uh030xe36b, …

View and Download Lennox ELITE EL297UH070XV36B installation instructions manual online. ELITE EL297UH070XV36B furnace pdf manual download. Also for: Elite el297uh045xv36b, Elite el297uhv series, Elite el297uh090xv36c, Elite el297uh090xv48c, Elite el297uh090xv60c, Elite el297uh110xv48c,...E 2015 Lennox Industries Inc. Dallas, Texas, USA 506525-01 ML180UH 01/2015 Supersedes 10/2012 SERIES GAS FURNACE WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Installation and service must be performed by a licensed professional installer (or Litho U.S.A.Jun 17, 2019 ... Did you know that heat pumps can both heat and cool your home? New heat pumps are very energy efficient, which can help you save on your ...2013 lennox industries inc. dallas, texas, usa air flow upflow air flow air flow horizontal left horizontal right installation instructions el296uhe elite® series gas furnace upflow / horizontal air discharge 507067-01 02/2013 supersedes 01/2012 this manual must be left with the homeowner for future referenceML193UH Parts Identification. NOTE − This manual is the property of the homeowner and must be left with the equipment user. This furnace is equipped with safety devices that protect you and your property. If one or more of these devices is activated, furnace operation will stop.Drill a 5/16" (8 mm) test hole into the air supply duct connected to the coil. (test hole 2 in figure 15). Connect the zero end of the draft gauge scale to the furnace end of the coil. Insert the hoses so that 1/4" (6 mm) extends inside the duct or end seal. Seal around holes with Permagum.

Properly label these devices. NOTE - Install an 1/8 inch NPT plugged tap into the field piping. Page 17 The furnace must be isolated from the gas supply system by closing its individual manual shut off valve during any pressure testing of the gas supply system at pressures equal to or greater than 1/2 psig (3.48 kPa). NOTE-Capacity given in ... Spectra CI2000HT. Installation And Operation Manual. Show all Lennox Wood stove manuals. View & download of more than 9636 Lennox PDF user manuals, service manuals, operating guides. Air Conditioner, Furnace user manuals, operating guides & specifications. Lennox GSR21Q and GSR21V Lennox Pulse Gas Furnace User's Manuals from 1998, supercedes the 1996 manuals, Lennox # 503.073M; Lennox GSR21Q Lennox Pulse Furnace Manual from 1991, Lennox # 502.694M 8/91; LENNOX G12 / G12E SERIES FURNACE INSTALLATION MANUAL [PDF] using one of 3 types of fan limit controls: Camstat, Cemco, or Honeywell.This manual is also suitable for: View and Download Lennox Allied Air A96UH2E installation instructions manual online. Warm Air Gas Furnace. Allied Air A96UH2E furnace pdf manual download. Also for: 030-08, 045-12, 070-12, 090-16, 110-20.Drill a 5/16" (8 mm) test hole into the air supply duct connected to the coil. (test hole 2 in figure 15). Connect the zero end of the draft gauge scale to the furnace end of the coil. Insert the hoses so that 1/4" (6 mm) extends inside the duct or end seal. Seal around holes with Permagum.The Elite ® Series model EL18XCV variable-speed air conditioner is your digital bridge into a world of perfect air. In fact, it’s the first variable-speed air conditioner of its kind. When paired with an iComfort ® -enabled furnace or air handler and an iComfort ® S30 thermostat, it maximizes its 18-SEER efficiency with modern ...©2017 Lennox Industries Inc. Dallas, Texas, USA 506476-01 04/2017 Supersedes 03/2017 ML193DF SERIES GAS FURNACE WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Installation and service must be performed by a licensed professional HVAC installer or

standard gas-fired furnace heat exchanger and at least 4" away from any drum-type or oil-fired furnace heat ex-changer. Closer spacing may damage the drain pan and cause a leak. Refer to the Product Specification bulletin (EHB) for the proper use of these coils with specific furnaces, air han-dlers and line sets.Lennox iHarmony Zoning System Applications - Minimum blower speed is 450 cfm. Page 38 First stage COOL (two-stage air conditioning units only) is approximately 70% of the same second stage COOL speed position. Continuous Fan Only speed is selectable at 28%, 38%, 70% and 100% of the selected second stage cooling speed - minimum 450 cfm.EL297UH045XV36B furnace pdf manual download. Also for: El297uhv series, El297uh070xv36b, El297uh090xv36c, El297uh090xv48c, El297uh090xv60c, El297uh110xv48c, El297uh110xv60c, El297uh135xv60d. ... Furnace Lennox EL296UHV Installation Instructions Manual. Elite series (66 pages) Furnace Lennox EL296UHV …This will damage the iComfort®S30 and void the warranty. Install HD Display/Mag-Mount on outside walls or in direct sunlight. Install Smart Hub to indoor unit or equipment that could induce unit vibration to the unit. Exceed 300 feet (91m) run when using 18 GAUGE thermostat wire or larger. Inspect the condensate drain and trap for leaks and cracks. Check any additional traps such as in the crawl space exhaust. The drain and trap must also be cleaned and the trap must be primed with water. Remove the rubber hoses from the cold end header box and inspect for any blockage, clean as needed.

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This furnace design has not been CSA International certified for installation in mobile homes, recreational vehicles, or outdoors. Use of Furnace as Construction Heater Lennox does not recommend the use of ML180UHE units as a construction heater during any phase of construction. Very low return air temperatures, harmful vapors and op­For installation in a residential garage, the furnace must be<br />. installed so that the burner (s) and the ignition source are<br />. located no less than 18 inches (457 mm) above the floor.<br />. The furnace must be located or protected to avoid physical<br />.See the Lennox Service and Application Notes #C-08-1 for further details and information. Table 3. Torque Requirements Parts Recommended Torque Service valve cap 8 ft.- lb. 11 NM Sheet metal screws 16 in.- lb. 2 NM Machine screws #10 28 in.- lb. 3 NM Compressor bolts 90 in.- lb. 10 NM Gauge port seal cap 8 ft.- lb. 11 NM USING MANIFOLD GAUGE SETThe EL280UH furnace may be installed in alcoves, closets, attics, basements, garages, crawl spaces and utility rooms in the upflow or horizontal position. This furnace design has not been CSA International certified for installation in mobile homes, recreational vehicles, or outdoors. Use of Furnace as Construction Heater 3 Blower Data. Download this manual. Service Literature. ML296UHV (X) series units are 90% efficiency gas fur­. naces used for upflow or horizontal applications only, manufactured with Lennox Duralokt heat exchangers. formed of aluminized steel. ML296UHV (X) units are avail­. able in heating capacities of 44,000 to 132,000 Btuh and. Lennox

MANUAL ©2017 Lennox Industries Inc. Dallas, Texas, USA 506476-01 04/2017 Supersedes 03/2017 ML193DF SERIES GAS FURNACE WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Installation and service must be performed by a licensed professional …Page 2: Unit Dimensions. EL296UHV Unit Dimensions - inches (mm) EXHAUST AIR 3−1/4 NOTE − 60C and 60D size units that require air OUTLET (83) volumes 1800 cfm or over (850 L/s) must have one of the following 1−7/8 (48) 1. Single side return air with transition, to accommodate 20 x 25 x 1 in.Page 2: Unit Dimensions. EL296UHV Unit Dimensions - inches (mm) EXHAUST AIR 3−1/4 NOTE − 60C and 60D size units that require air OUTLET (83) volumes 1800 cfm or over (850 L/s) must have one of the following 1−7/8 (48) 1. Single side return air with transition, to accommodate 20 x 25 x 1 in.For installation in a residential garage, the furnace must be installed so that the burner(s) and the ignition source are located no less than 18 inches (457 mm) above the floor. The furnace must be located or protected to avoid physical damage by vehicles. When a furnace is installed in a public garage, hangar, or other building that has aManually calculating the monthly payments on a given loan is fairly simple, but it does require some basic algebra skills—or access to the Internet. The formula to calculate a mort...All Around Comfort. The SL297NV ultra-low NOx gas furnace with our revolutionary design provides reliable comfort, while producing 65% lower NOx emissions than standard low NOx furnaces. So, while you’re staying cozy and warm, you’re also helping to protect the environment. Learn more. ML193UH Parts Identification. NOTE − This manual is the property of the homeowner and must be left with the equipment user. This furnace is equipped with safety devices that protect you and your property. If one or more of these devices is activated, furnace operation will stop. DAVE LENNOX SIGNATURE® COLLECTION GAS FURNACE UPFLOW / HORIZONTAL AIR DISCHARGE 506610−01 05/2011 Supersedes 12/2010 THIS MANUAL MUST BE LEFT WITH THE HOMEOWNER FOR FUTURE REFERENCE This a safety alert symbol and should never be ignored. When you see this symbol on labels or in manuals, be alert to the potential for personal injury or death ...

G60UH(X) Gas Furnace The G60UH(X) gas furnace is equipped with a two−stage integrated control. Each G60UH(X) unit is shipped ready for installation in the upflow or horizontal position (left or right). The furnace is shipped with the bottom panel in place. The bottom panel must be removed if the unit is to be installed in a horizontal ...

Properly label these devices. NOTE - Install an 1/8 inch NPT plugged tap into the field piping. Page 17 The furnace must be isolated from the gas supply system by closing its individual manual shut off valve during any pressure testing of the gas supply system at pressures equal to or greater than 1/2 psig (3.48 kPa). NOTE-Capacity given in ...2015 Lennox Industries Inc. Dallas, Texas, USA RETAIN THESE INSTRUCTIONS FOR FUTURE REFERENCE General This XC20 outdoor air conditioner is designed for use with HFC-410A refrigerant only. This unit must be installed with an approved indoor air handler or coil. See the Lennox XC20 Product Specifications bulletin (EHB) for approved indoor ... Drill a 5/16" (8 mm) test hole into the air supply duct connected to the coil. (test hole 2 in figure 15). Connect the zero end of the draft gauge scale to the furnace end of the coil. Insert the hoses so that 1/4" (6 mm) extends inside the duct or end seal. Seal around holes with Permagum. Oct 13, 2018 ... Welcome to my YouTube channel! For all your business management needs, I highly recommend using Jobber. Whether you're an HVAC professional ...Apr 4, 2020 ... Lennox XC20 VARIABLE SPEED HVAC Unit Full Installation of AIR HANDLER CBA38MV-48 LENNOX ... Disconnecting 15kw Electric Furnace and Thermostat ...©2019 Lennox Industries Inc. Dallas, Texas, USA THIS MANUAL MUST BE LEFT WITH THE HOMEOWNER FOR FUTURE REFERENCE NOTICE ! For more in-depth information, consult the Installa­ tion and Service Procedures manual, available as Corp. 1502-L7 on LennoxPros.com or through the Technical Support Department at 800-453-6669. INSTALLATION INSTRUCTIONSPage 6: General. P.O. Box 799900 Dallas, TX 75379−9900 CAUTION Front Back SLP98UHV unit should not be installed in areas nor- mally subject to freezing temperatures. FIGURE 4 These instructions are intended as a general guide and do Upflow Applications not supersede local codes in any way.

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E30 Smart Hub with Cover Removed. Figure 2. Smart Hub LED Indicators. Unit Type Jumpers. Set the unit type jumper for the type of indoor unit being used (see “Figure 1. Smart Hub External Components” on page 3 and “Table 3. Unit Type Jumpers Positions”). The factory default setting is IFC. that can be used with a Lennox communicating thermostat as part of a communicating comfort system. All SLP99UHV units meet the California Nitrogen Oxides (NOx) Standards and California Seasonal Efficiency requirements. All specifications in this manual are subject to change. Pro­ cedures outlined in this manual are presented as recom­ • Furnace must be in its final location. The vent system must be permanently installed per these installation in-structions. • Furnace must be installed as a two pipe system and one hundred percent (100%) outdoor air must be pro-vided for combustion air requirements during construc-tion. • A room thermostat must control the furnace. The useCOMFAIR HC80. Operating Manual. COMFAIR HC90. Operating Manual. Comfair HD. Installation Operating & Maintenance Manual. Download 2929 Lennox Air Conditioner PDF manuals. User manuals, Lennox Air Conditioner Operating guides and Service manuals.NOTE - For installation on combustible floors, the furnace shall not be installed directly on carpeting, tile, or other combustible material other than wood flooring. For installation in … 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. ML193UH Parts Identification. NOTE − This manual is the property of the homeowner and must be left with the equipment user. This furnace is equipped with safety devices that protect you and your property. If one or more of these devices is activated, furnace operation will stop.E 2015 Lennox Industries Inc. Dallas, Texas, USA 506525-01 ML180UH 01/2015 Supersedes 10/2012 SERIES GAS FURNACE WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury or loss of life. Installation and service must be performed by a licensed professional installer (or Litho U.S.A.EL297UH045XV36B furnace pdf manual download. Also for: El297uhv series, El297uh070xv36b, El297uh090xv36c, El297uh090xv48c, El297uh090xv60c, El297uh110xv48c, El297uh110xv60c, El297uh135xv60d. ... Furnace Lennox EL296UHV Installation Instructions Manual. Elite series (66 pages) Furnace Lennox EL296UHV … This will damage the iComfort®S30 and void the warranty. Install HD Display/Mag-Mount on outside walls or in direct sunlight. Install Smart Hub to indoor unit or equipment that could induce unit vibration to the unit. Exceed 300 feet (91m) run when using 18 GAUGE thermostat wire or larger. We have 27 Lennox Elite series manuals available for free PDF download: Installation Instructions Manual, Installation And Operation Manual, Owner's Manual, Care And …What are manual transmission synchronizers? Visit HowStuffWorks.com to learn more about manual transmission synchronizers. Advertisement When you shift gears in your manual-transmi... ….

G60UH(X) Gas Furnace The G60UH(X) gas furnace is equipped with a two−stage integrated control. Each G60UH(X) unit is shipped ready for installation in the upflow or horizontal position (left or right). The furnace is shipped with the bottom panel in place. The bottom panel must be removed if the unit is to be installed in a horizontal ... What you need to know about furnace installation begins with understanding the type of furnace that best suits your needs. Goodman Company offers a large selection of furnaces desi...ML193UH Parts Identification. NOTE − This manual is the property of the homeowner and must be left with the equipment user. This furnace is equipped with safety devices that protect you and your property. If one or more of these devices is activated, furnace operation will stop. Lennox Furnace 16L23 Installation instructions manual (8 pages) 9. Lennox 16L24. Lennox Furnace 16L24 Installation instructions manual (8 pages) 10. Lennox 16L25. Lennox Furnace 16L25 Installation instructions manual (8 pages) 11. Lennox LB-89657A. INSTALLATION INSTRUCTIONS G1D91BT, CG90TB, & G1D93BT High Efficiency 90+ Condensing Gas Furnace WARNING Improper installation, adjustment, alteration, service, or maintenance can cause injury or property damage. Refer to this manual. For assistance or additional informa- tion, consult a qualified installer, service agency, or the gas supplier.Lennox ML193UH Instruction Manual. Merit series upflow / horizontal gas furnaces. Also See for ML193UH: Installation instructions manual (51 pages) , User's information manual (7 pages) , Installation instructions manual (51 pages) 1.In the winter time, a good heating furnace can make all the difference in keeping you and your family warm. Goodman furnaces are one reputable line of furnaces for the cold months....Buying a mobile home can be a great investment for some. The option of designing your own living space, having it built and shipped to you is a big attraction. It can also be more ... Lennox furnace installation manual, Heating Sequence. 28. Continued on Next Page. 29. Cooling Sequence of Operation. 31. Advertisement. Lennox G32Q3-75 Pdf User Manuals. View online or download Lennox G32Q3-75 Installation Instructions Manual., What you need to know about furnace installation begins with understanding the type of furnace that best suits your needs. Goodman Company offers a large selection of furnaces desi..., Save energy every month. An energy-efficient design means this furnace keeps your home comfortable and saves on monthly utility bills. Plus, when paired with a programmable thermostat, you could save up to 35% in utility costs., With the help of the Lennox S40 Smart Thermostat ultra smart thermostat, the SLP99V gas furnace unlocks a world of connectivity. It stays finely tuned to your home by using sensors to react, diagnose, and troubleshoot—all while remaining in constant contact with your dealer to ensure proactive responses. Geofencing technology ensures your air ..., With the help of the Lennox S40 Smart Thermostat ultra smart thermostat, the SLP99V gas furnace unlocks a world of connectivity. It stays finely tuned to your home by using sensors to react, diagnose, and troubleshoot—all while remaining in constant contact with your dealer to ensure proactive responses. Geofencing technology ensures your air ..., that can be used with a Lennox communicating thermostat as part of a communicating comfort system. All SLP99UHV units meet the California Nitrogen Oxides (NOx) Standards and California Seasonal Efficiency requirements. All specifications in this manual are subject to change. Pro­ cedures outlined in this manual are presented as recom­, View and Download Lennox SIGNATURE SLP99DFV installation instructions manual online. SIGNATURE SLP99DFV furnace pdf manual download. Also for: Signature slp99df070v36, Signature slp99df090v36c, Signature slp99df090v48c, Signature slp99df090v60c, Signature slp99df110v60c., 2021 Lennox Industries Inc. Dallas, Texas, USA Page 1 THIS MANUAL MUST BE LEFT WITH THE HOMEOWNER FOR FUTURE REFERENCE WARNING Improper …, This furnace design has not been CSA International certified for installation in mobile homes, recreational vehicles, or outdoors. Use of Furnace as Construction Heater Lennox does not recommend the use of ML180UHE units as a construction heater during any phase of construction. Very low return air temperatures, harmful vapors and op­, 43. IV-Heating System Service Checks. 44. VI-Maintenance. 49. Advertisement. Lennox ML196UH090XE48C Pdf User Manuals. View online or download Lennox ML196UH090XE48C Unit Information, Installation Instructions Manual., Page 2: Unit Dimensions. EL296UHV Unit Dimensions - inches (mm) EXHAUST AIR 3−1/4 NOTE − 60C and 60D size units that require air OUTLET (83) volumes 1800 cfm or over (850 L/s) must have one of the following 1−7/8 (48) 1. Single side return air with transition, to accommodate 20 x 25 x 1 in., The EL280DFE furnace may be installed in alcoves, clos-ets, attics, basements, garages, and utility rooms in the downflow position. This furnace design has not been CSA International certified for installation in mobile homes, recreational vehicles, or outdoors. Safety Lennox does not recommend the use of EL280DFE units, Page 6: G24−200 Gas Furnace. 100MBH and each operating in a two- stage (low heat/high heat) mode. The C17−090/120 cooling coil has been designed for use with this furnace and can be connected to either a single condensing unit or to two con- densing units. Page 7 18 inches (457 mm) above the floor., SL297UHNV Gas Furnace The SL297UHNV Category IV gas furnace is shipped ready for installation in the upflow or horizontal position. The furnace is shipped with the bottom panel in place. The bottom panel must be removed if the unit is to be installed in horizontal or upflow applications with bottom return air., We have 3 Lennox SIGNATURE SLP99UH110XV60C manuals available for free PDF download: Unit Information, Manual, Installation Instructions Manual Lennox SIGNATURE SLP99UH110XV60C Manual (83 pages) Brand: Lennox | Category: Furnace | Size: 4.27 …, In some areas, the local code requires that a licensed HVAC contractor install your furnace. Check your local building code enforcement agency to ensure you can do the job yourself..., Manual Away. The user can manually put the system into away mode by pressing the “away” icon. When the system is in away mode, the horseshoe is grayed-out and shows the “away” status text. In order to exit away mode, the user can press the “cancel” icon. In away mode, the away set points are used to control the system., Lennox ML193UH Instruction Manual. Merit series upflow / horizontal gas furnaces. Also See for ML193UH: Installation instructions manual (51 pages) , User's information manual (7 pages) , Installation instructions manual (51 pages) 1., View and Download Lennox ELO183UF Series installation instructions manual online. ELO183UF Series furnace pdf manual download. Also for: Elo183uf68/86p36, Elo183uf101/114p48, Elo183uf135/150p60. ... Installation of Lennox oil−fired furnaces must conform with cabinet front 4 (120) 4 (120) the National Fire Protection Association …, With the help of the Lennox S40 Smart Thermostat ultra smart thermostat, the SLP99V gas furnace unlocks a world of connectivity. It stays finely tuned to your home by using sensors to react, diagnose, and troubleshoot—all while remaining in constant contact with your dealer to ensure proactive responses. Geofencing technology ensures your air ..., View and Download Lennox Merit Series installation instructions manual online. GAS FURNACE UPFLOW / HORIZONTAL AIR DISCHARGE. Merit Series furnace pdf manual download. Also for: Merit ml296uhv series, Merit ml296uh045xv36b, Merit ml296uh070xv36b, Merit ml296uh090xv48c, Merit..., When you own a home or a business with a furnace, eventually you’ll be checking out the price for a new furnace, and wondering how much installation will cost. Use this simple guid..., G61MPV Gas Furnace The G61MPV category IV gas furnace is equipped with a two−stage, variable speed integrated control. This control ensures compatibility with Lennox’ Harmony III zone con-trol system, as well as a thermostat which provides humid-ity control. Each G61MPV is shipped ready for installation, View and Download Lennox SLP99DFV Series manual online. SLP99DFV Series furnace pdf manual download. Also for: Slp99df070xv36b, Slp99df090xv36c, Slp99df090xv48c, Slp99df090xv60c, Slp99df110xv60c. ... Furnace Lennox SLP98DFV Installation Instructions Manual. Gas furnace downflow air discharge (64 pages), Lennox Industries Inc. P.O. Box 799900 Dallas, TX 75379−9900 WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, person-al injury or loss of life. Installation and service must be performed by a qualified installer or service agency. Installation of Lennox oil−fired furnaces must conform with , G27M series units are mid-efficiency gas furnaces. manufactured with tubular aluminized steel heat ex. changers. G27M units are available in heating capaci. ties of 60,000 to 120,000 Btuh (17.6 to 35.2 kW) and cool. ing applications from 1.5 through 5 tons (3.5 through. 17.6 kW). Refer to Engineering Handbook for proper siz., Pre-service checklist. Before a visit from your Lennox Dealer, it may be helpful to review this list of tips so that you are well prepared. Take a look at our …, For installation in a residential garage, the furnace must be installed so that the burner(s) and the ignition source are located no less than 18 inches (457 mm) above the floor. The furnace must be located or protected to avoid physical damage by vehicles. When a furnace is installed in a public garage, hangar, or other building that has a, The EL280DFE furnace may be installed in alcoves, clos-ets, attics, basements, garages, and utility rooms in the downflow position. This furnace design has not been CSA International certified for installation in mobile homes, recreational vehicles, or outdoors. Safety Lennox does not recommend the use of EL280DFE units, INSTALLATION INSTRUCTIONS E 2013 Lennox Industries Inc. Dallas, Texas, USA ML193UH ® MERIT SERIES GAS FURNACE UPFLOW / HORIZONTAL AIR DISCHARGE 507121-01 Litho U.S.A. 08/2013 Supersedes 06/2013 THIS MANUAL MUST BE LEFT WITH THE HOMEOWNER FOR FUTURE REFERENCE This is a safety alert symbol …, The SLP99UHV furnace may be installed in alcoves, clos-ets, attics, basements, garages, and utility rooms. This furnace is not designed for installation in mobile homes, …, The EL195UH furnace may be installed in alcoves, closets, attics, basements, garages, crawl spaces and utility rooms in the upflow or horizontal position. This furnace design has not been CSA certified for installa-tion in mobile homes, recreational vehicles, or outdoors. Use of Furnace as Construction Heater, ML195UH. MERIT®SERIES. Upflow / Horizontal. Bulletin No. 210591 March 2019. Supersedes September 2018. AFUE - 95% Input - 44,000 to 132,000 Btuh Nominal Add-on Cooling - 2 to 5 Tons. MODEL NUMBER IDENTIFICATION. ML 1 95 UH 070 X P 36 B. Unit Type ML = Merit®Series Stages 1 = One-Stage Nominal Gas Heat InputBlower.