PRODUCT SPECIFICATIONS GAS FURNACES EL80DFE ELITE SERIES Downflow - High Efficiency Blower Motor Bulletin No. 2066 July 208 Supersedes February 208 AFUE - 80% Input - 44,000 to 0,000 Btuh Nominal Add-on Cooling -.5 to 5 Tons MODEL NUMBER IDENTIFICATION EL 80 DF 070 E 36 B Unit Type ML = Elite Series Stages = Single-Stage AFUE 80 = 80% Configuration DF = Downflow Nominal Gas Heat Input 045 = 44,000 Btuh 070 = 66,000 Btuh 090 = 88,000 Btuh 0 = 0,000 Btuh Cabinet Width A = 4-/2 in. B = 7-/2 in. C = 2 in. Nominal Add-On Cooling Capacity 36 =.5-3 tons 48 = 2.5-4 tons 60 = 3-5 tons Blower E = High Efficiency Constant Torque Blower Motor Downflow indoor coils with the same letter designation will physically match the furnace supply air opening.
FEATURES CONTENTS Blower Data... 0 H Dimensions... 7 Dimensions - Furnace/Coil Combined Dimensions... 9 Features... 2 Gas Heat Accessories... 5 High Altitude Derate... 6 Installation Clearances... 6 Model Number Identification... Optional Accessories... 5 Optional Accessory Dimensions... 8 Specifications... 5 K B I L F G J E C D NOTE - EL80DFE FURNACES ARE NOT AVAILABLE IN CANADA! WARRANTY Duralok Aluminized Steel Heat Exchanger - Limited twenty year warranty in residential applications, ten years in non-residential applications. All other covered components - Limited five year warranty in residential applications, one year in nonresidential applications. Refer to Lennox Equipment Limited Warranty certificate included with equipment for details. APPROVALS Units are Certified by AHRI. Units tested and rated according to US DOE test procedures and FTC labeling regulations. ISO 900 Registered Manufacturing Quality System. Blower data from unit tests conducted in Lennox Laboratory air test chamber. APPLICATIONS Input capacities of 44,000, 66,000, 88,000 and 0,000 Btuh. Energy efficiency (AFUE) of 80%. Compact cabinet for downflow applications without any internal modifications to the unit. 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. EL80DFE / Page 2
FEATURES B C D E F G HEATING SYSTEM Lennox Duralok Heat Exchanger Assembly Heavy gauge aluminized steel heat exchanger. Crimped seam clamshell type design. Designed for normal expansion and contraction. Minimum resistance to air flow. Heat exchanger has been laboratory life cycle tested in excess of industry standards. Compact size of heat exchanger permits low overall design of furnace cabinet. Inshot Burners Aluminized steel inshot burners provide efficient, trouble-free operation. Burner venturi mixes air and gas in correct proportion for proper combustion. Burner assembly is removable from the unit as a single component for ease of service. SureLight Hot Surface Ignitor Tough, reliable, long-life, trouble-free performance. Silicon nitride ignitor. Cemented to steatite block for protection against current leakage. Ignition leads are constructed of nickel plated copper and are enclosed in high temperature Teflon insulation for dependable operation. Gas Control Valve 24 volt redundant combination gas control valve combines manual shut off switch (On-Off), automatic electric valve (dual) and gas pressure regulation into a compact combination control. Combustion Air Inducer Shaded pole heavy duty blower prepurges heat exchanger and safely vents flue products. Pressure switch proves blower operation before allowing gas valve to open. Operates only during heating cycle. Flame Rollout Switch Manual reset switch is factory installed inside burner box. Switches provides protection from abnormal operating conditions. Limit Controls Automatic reset, primary and secondary limits are accurately located. Primary limit factory installed on vestibule panel on all units, secondary limit factory installed on blower housing. H I Optional Accessories High Altitude Pressure Switch Kit Required on most units for proper unit operation at altitudes from 4,50 to 7500 ft. Natural Gas to LPG/Propane Conversion Kit Required for field changeover from natural gas to LPG/ Propane. LPG/Propane to Natural Gas Conversion Kit Required for field changeover from LPG/Propane to natural gas. BLOWER Direct drive blower. Statically and dynamically balanced. Resiliently mounted. Blower assembly easily removed for servicing. Power Saver Constant Torque Blower Motor DC Brushless Motor High Efficiency Constant Torque. ECM (Electronically Commutated Motor). Motor is programmed to provide constant torque at each of the selectable speeds. Motor is controlled by the Integrated Furnace Control. Blower speeds are easily changed on the integrated furnace control. See blower performance tables. CONTROLS SureLight Integrated Furnace Control Control contains all necessary controls and relays to operate furnace. Combustion air inducer is operated by the integrated furnace control. Prior to ignition, a pre-purge cycle for 5 seconds is initiated. After the main burners are turned off, a post-purge cycle for 5 seconds is run. Flame sensor assures safe and reliable operation. Should loss of flame occur the integrated furnace control will initiate 4 re-attempts at ignition before locking out unit operation for 60 minutes. Watchguard type circuit automatically resets ignition controls after one hour of continuous thermostat demand after unit lockout, eliminating nuisance calls for service. Fan control consists of adjustable blower timed-off delay (60, 90, 20, 80 seconds - factory setting 90 seconds) and fixed blower timed-on delay (30 seconds - heating, 2 seconds - cooling). For air-conditioning applications, blower is automatically energized on thermostat demand for cooling. Control has low speed continuous blower speed setting for humidifier or air cleaner operation. EL80DFE / Page 3
FEATURES J CONTROLS (continued) Two accessory terminals furnished for additional power supply requirements for 20 volt (less than amp) power humidifiers and powered air cleaners. One addiitonal terminal is furnished for power supply requirements for 24V (less than 0.5 amp) low voltage accessories. Ignition control has single red LED to indicate status and as an aid in troubleshooting. Last five codes are stored in non-volatile memory (accessible by recall button on control for servicing. 24 Volt Transformer Furnished and factory installed on outside of control box. 40VA transformer has circuit breaker wired in series. Field Wiring Make-up Box Furnished for line voltage wiring. Factory installed internally on left side of furnace. Box may be installed on right side of furnace. Optional Accessories Blower Relay Kit (For Use With Two-Stage Outdoor Units) Allows furnace blower speed changes when matched with two-stage air conditioners or heat pumps. Furnace Twinning Kit Required to operate two furnaces simultaneously. Kit consists of twinning relays, quick connect terminals and mounting hardware. Used for single-stage heating/single-stage cooling with a single-stage thermostat. Thermostat Thermostat (programmable/non-programmable) is not furnished with unit. See Thermostat bulletins in Controls Section and Lennox Price Book for selection. Night Service Kit Contains most commonly used service parts: Furnace Control Ignitor Flame sensor Gas valve Transformer K L CABINET Low-profile, narrow width cabinet allows easy installation in downflow applications. Heavy-gauge, cold rolled steel construction. Pre-painted cabinet finish. Flanges provided on supply air opening for ease of plenum connection or alignment with indoor coil. Fully insulated cabinet with foil faced insulation on sides and back of heating compartment and mat faced insulation in blower compartment. Sealed blower compartment. Inner blower compartment access panel seals blower compartment from air leakage. Cabinet door can be removed without any tools. Complete service access. Safety interlock switch automatically shuts off power to unit when blower compartment access panel is removed. Gas piping and electrical inlets are provided in both sides of cabinet. Coil Match-up All Lennox downflow indoor coils will physically match the furnace supply air opening with the same letter designation (A, B, C, D) as in the furnace model number. Low Leakage Cabinet All models have less than 2% air leakage and meet ANSI/ASHRAE Standard 93-200 Method of Test for Determining the Air Tightness of HVAC Equipment. Optional Accessories Downflow Combustible Flooring Base Required for heating only units installed on combustible floors. Not required in add-on cooling applications. See Dimension Drawing. FILTER (not furnished) Filter and provisions for external mounting must be field provided. Optional Accessories Downflow Filter Cabinet Filter cabinet mounts directly on top of furnace. A width cabinet includes one filter. B and C width cabinets have two filters. Filter rails are furnished. Front access for servicing. Cleanable filter(s) are furnished. EL80DFE / Page 4
SPECIFICATIONS Gas Heating Performance Model No. EL80DF045E36A EL80DF070E36B EL80DF090E48B EL80DF0E60C AHRI Reference No. 572705 572706 572707 572708 AFUE 80% 80% 80% 80% Input - Btuh 44,000 66,000 88,000 0,000 Output - Btuh 36,000 54,000 72,000 90,000 Temperature rise range - F 5-45 30-60 30-60 30-60 Gas Manifold Pressure (in. w.g.) 3.5 / 0.0 3.5 / 0.0 3.5 / 0.0 3.5 / 0.0 Nat. Gas / LPG/Propane High Static - in. w.g. 0.50 0.50 0.50 0.50 Connections Flue connection - in. round 4 4 4 4 in. Gas pipe size IPS /2 /2 /2 /2 Indoor Wheel nom. dia. x width - in. 0 x 8 0 x 0 0 x 0 -/2 x 0 Blower Motor Type DC Brushless DC Brushless DC Brushless DC Brushless Motor output - hp /2 /2 3/4 Tons of add-on cooling.5-3.5-3 2.5-4 3-5 Air Volume Range - cfm 355-430 430-475 680-750 990-240 Electrical Voltage 20 volts - 60 hertz - phase Data Blower motor full load amps 6.8 6.8 8.4 0.9 Maximum overcurrent protection 5 5 5 5 Shipping Data lbs. - package 3 28 40 60 NOTE - Filters and provisions for mounting are not furnished and must be field provided. Annual Fuel Utilization Efficiency based on DOE test procedures and according to FTC labeling regulations. Isolated combustion system rating for non-weatherized furnaces. OPTIONAL ACCESSORIES - ORDER SEPARATELY A Width Models B Width Models C Width Models CABINET ACCESSORIES Downflow Combustible Flooring Base M59 M60 M6 CONTROLS Blower Relay Kit (for two-stage outdoor units) 85W66 85W66 85W66 Furnace Twinning Kit 6W72 6W72 6W72 FILTERS Downflow Filter Cabinet 5W06 5W07 5W08 No. and Size of filter - in. () 20 x 20 x (2) 20 x 6 x (2) 20 x 6 x SERVICE KIT Night Service Kit 84W47 84W47 84W47 Cleanable polyurethane, frame-type filter. GAS HEAT ACCESSORIES Input High Altitude Pressure Switch Kit Natural Gas to LPG/Propane Kit LPG/Propane to Natural Gas Kit Natural Gas High Altitude Orifice Kit 0-4500 ft. 450-7500 ft. 750-0,000 ft. 0-7500 ft. 750-0,000 ft. 0-7500 ft. 750-0,000 ft. 045 No Change No Change 80W5 K49 K44 73W8 73W37 070 No Change 80W52 80W5 K49 K44 73W8 73W37 090 No Change No Change 80W5 K49 K44 73W8 73W37 0 No Change 80W52 80W5 K49 K44 73W8 73W37 EL80DFE / Page 5
HIGH ALTITUDE DERATE NOTE - Units may be installed at altitudes up to 4500 ft. above sea level without any modifications. At altitudes above 4500 ft. units must be derated to match information in the shaded areas shown below. NOTE - This is the only permissible derate for these units. Input Gas Manifold Pressure (Outlet) in. w.g. 0-4500 Feet 450-7500 Feet 750-0,000 ft. Minimum Natural Gas LPG/ Propane Natural Gas LPG/ Propane Natural Gas LPG/ Propane Natural Gas Line Pressure - in. w.g. LPG/ Propane Maximum 045 3.5 0 3.5 0 3.5 0 4.5 3 070 3.5 0 3.3 0 3.5 0 4.5 3 090 3.5 0 3.3 0 3.5 0 4.5 3 0 3.5 0 3.3 0 3.5 0 4.5 3 Natural Gas High Alitude Orifice Kit required. INSTALLATION CLEARANCES Vent Type Type B Type C Sides 0 in. (0 mm) 0 (0) Rear 0 in. (0 mm) 0 (0) Top in. (25 mm) (25) Front 2-/4 in. (57 mm) 2-/4 (57) Front (service/alcove) 24 in. (60 mm) 24 (60) Floor 2 Combustible 2 Combustible Flue in. (25 mm) 6 (52) NOTE Air for combustion must conform to the methods outlined in the National Fuel Gas Code (NFPA 54/ANSI-Z223.). NOTE In the U.S. flue sizing must conform to the methods outlined in the current National Fuel Gas Code (NFPA 54/ANSI-Z223.) or applicable provisions of local building codes. Left side requires 4 in. if single wall vent is used on 4-/2 in. A width cabinets, 2 in. on 7-/2 in. B width cabinets. 2 Clearance for installation on combustible floor if Optional Downflow Combustible Flooring Base is installed between furnace and combustible floor. Not required in add-on cooling applications if installed in accordance with local codes, National Fuel Gas Code ANSI-Z223. or National Standard of Canada CAN/CSA-B49. and CAN/CSA-B49.2 Installation Code for Gas Burning Appliances. Do not install the furnace directly on carpeting, tile, or other combustible materials other than wood flooring. EL80DFE / Page 6
DIMENSIONS - INCHES (MM) 3-/8 (79) 9/6 (4) D FLUE OUTLET (Top) B RETURN AIR OPENING 9-7/6 (494) 9/6 (4) 9/6 (4) TOP VIEW A B 9/6 (4) -/2 (38) Front Panel 27-3/4 (705) 9-7/6 (494) 9/6 (4) AIR FLOW 33 (838) 5-3/8 (37) Right 2-3/6 (56) Left ELECTRICAL INLET (Either Side) GAS PIPING INLET (Either Side) 6-5/8 (68) Right 7-/8 (8) Left 3/4 (9) C Supply Air 3/4 (9) 9-/4 (489) Supply Air 3/4 (9) FRONT VIEW SIDE VIEW Model No. A B C D in. mm in. mm in. mm in. mm EL80DF045E36A 4-/2 368 3-3/8 340 3 330 4-3/4 2 EL80DF070E36B EL80DF090E48B 7-/2 446 6-3/8 46 6 406 6-/4 59 EL80DF0E60C 2 533 9-7/8 505 9-/2 495 8 203 EL80DFE / Page 7
OPTIONAL ACCESSORY DIMENSIONS - INCHES (MM) DOWNFLOW FILTER CABINET A WIDTH FURNACES (Single Filter) B AND C WIDTH FURNACES (Two Filters) 20-/2 (52) 4-/2 (368) 20-/2 (52) 7-/2 (445) B Box 2 (533) C Box FILTER () 2 (533) FILTERS (2) 7-/2 (445) 54 (372) 50-/2 (283 ) 33 (838) 33 (838) FILTER ACCESS DOOR FURNACE FURNACE FILTER ACCESS DOOR NOTE: Return Air Opening (W x D) A Box 3-/2 x 9-5/8 (343 x 498) B Box 6-/2 x 9-5/8 (49 x 498) C Box 20 x 9-5/8 (508 x 498) EL80DFE / Page 8
OPTIONAL ACCESSORY DIMENSIONS - INCHES (MM) DOWNFLOW COMBUSTIBLE FLOORING BASE -/2 (38) SUPPLY AIR OPENING DOWN FLOW FURNACE -/2 (38) B 9-3/6 (503) -/2 (38) 27-/4 (692) 2-3/6 (554) Front Of Furnace A -/2 (38) TOP VIEW SIDE VIEW DOWNFLOW COMBUSTIBLE FLOORING BASE FLOOR OPENING Cabinet Width Catalog Number A B C in. mm in. mm in. mm A M59 6-9/6 42 3-9/6 344 5-3/4 400 B M60 9-9/6 497 6-9/6 42 8-3/4 476 C M6 23-/6 586 20-/6 50 22-/4 565 22 (559) C DIMENSIONS - INCHES (MM) - FURNACE/COIL COMBINED DIMENSIONS Furnace Width Coil Width 33 (838) Coil Height Overall Height Model Number Coil Width Furnace Width Coil Height Overall Height in. mm in. mm in. mm in. mm CR33-8A-F 7-/2 446 4-/2 368 4-/8 359 47-/8 97 CR33-24A-F 7-/2 446 4-/2 368 4-/8 359 47-/8 97 CR33-24B-F 7-/2 446 7-/2 446 4-/8 359 47-/8 97 CR33-30/36A-F 7-/2 446 4-/2 368 6-/8 40 49-/8 248 CR33-30/36B-F 7-/2 446 7-/2 446 6-/8 40 49-/8 248 CR33-30/36C-F 2 533 2 533 6-/8 40 49-/8 248 CR33-48B-F 2 533 7-/2 446 20 508 53 346 CR33-48C-F 2 533 2 533 20 508 53 346 CR33-50/60C-F 24-/2 622 2 533 23-5/8 600 56-5/8 2276 EL80DFE / Page 9
BLOWER DATA EL80DF045E36A PERFORMANCE (Less Filter) External Air Volume / Watts at Various Blower Speeds Static High Medium-High Medium Medium-Low Low Pressure in. w.g. cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts 0.00 430 285 25 80 035 20 995 0 930 00 0.0 400 285 75 85 995 30 885 00 850 90 0.20 375 300 45 200 950 40 840 0 725 85 0.30 335 35 20 20 95 45 790 5 665 95 0.40 320 325 075 220 870 55 745 25 625 00 0.50 275 335 045 230 835 65 75 35 565 05 0.60 245 345 000 235 785 70 655 40 520 5 0.70 25 355 970 245 745 80 605 50 355 30 0.80 75 365 925 255 695 85 555 55 400 30 EL80DF070E36B PERFORMANCE (Less Filter) External Air Volume / Watts at Various Blower Speeds Static High Medium-High Medium Medium-Low Low Pressure in. w.g. cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts 0.00 475 275 345 70 225 35 85 25 0 05 0.0 430 290 275 75 90 45 55 35 005 95 0.20 400 295 230 90 25 60 0 50 900 00 0.30 360 30 205 205 085 60 055 55 845 5 0.40 30 325 55 20 050 75 000 65 790 5 0.50 280 335 0 220 985 85 950 80 705 30 0.60 250 350 060 235 935 95 865 85 645 35 0.70 220 355 000 245 865 205 85 95 590 40 0.80 65 365 935 250 795 20 750 200 480 45 EL80DF090E48B PERFORMANCE (Less Filter) External Air Volume / Watts at Various Blower Speeds Static High Medium-High Medium Medium-Low Low Pressure in. w.g. cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts 0.00 750 385 550 265 430 205 355 85 95 30 0.0 725 390 495 270 390 220 320 95 45 40 0.20 695 405 470 285 340 235 280 20 05 45 0.30 660 45 425 300 290 240 225 25 040 60 0.40 65 430 395 30 250 255 85 230 005 70 0.50 570 450 360 325 20 265 45 240 945 80 0.60 545 465 295 340 65 280 085 255 865 85 0.70 N/A N/A 265 350 20 295 040 265 80 200 0.80 N/A N/A 25 365 080 305 000 275 755 20 EL80DF0E60C PERFORMANCE (Less Filter) External Air Volume / Watts at Various Blower Speeds Static High Medium-High Medium Medium-Low Low Pressure in. w.g. cfm Watts cfm Watts cfm Watts cfm Watts cfm Watts 0.00 240 625 2095 405 875 295 700 225 635 80 0.0 2385 630 200 45 830 30 60 240 505 90 0.20 2325 650 200 440 760 330 570 255 375 95 0.30 2280 675 940 460 705 340 500 260 320 20 0.40 2235 690 895 475 635 365 440 285 265 225 0.50 265 70 845 490 595 380 380 300 200 235 0.60 225 735 800 50 545 390 320 30 70 250 0.70 2090 740 755 530 50 405 285 325 00 260 0.80 2035 760 700 540 460 425 255 345 030 275 EL80DFE / Page 0
REVISIONS Sections Controls Specifications Description of Change Added Furnace Twinning Kit. Added AHRI reference numbers. Visit us at www.lennox.com For the latest technical information, www.lennoxpros.com Contact us at -800-4-LENNOX NOTE - Due to Lennox ongoing commitment to quality, Specifications, Ratings and Dimensions subject to change without notice and without incurring liability. Improper installation, adjustment, alteration, service or maintenance can cause property damage or personal injury. Installation and service must be performed by a qualified installer and servicing agency. 208 Lennox Industries, Inc.