Lennox ELITE Series Installation Instructions Manual
  1. Manuals
  2. Brands
  3. Lennox Manuals
  4. Furnace
  5. Elite series
  6. Installation instructions manual

Lennox ELITE Series Installation Instructions Manual

Gas furnace downflow air discharge
Hide thumbs Also See for ELITE Series:
Table of Contents

Advertisement

Quick Links

Download this manual
© 2020 Lennox Industries Inc.
Dallas, Texas USA
Contents
Unit Dimensions - inches (mm) ......................................2
EL196DFE Gas Furnace ................................................3
Shipping and Packing List ..............................................3
Safety .............................................................................3
General ...........................................................................5
Combustion, Dilution, Ventilation Air...............................5
Setting Equipment ..........................................................8
Filters ............................................................................ 11
Duct System .................................................................12
Pipe Fittings Specifications...........................................12
Joint Cementing Procedure ..........................................14
Venting Practices ..........................................................15
INSTALLATION
INSTRUCTIONS
EL196DFE
ELITE
SERIES GAS FURNACE
®
DOWNFLOW AIR DISCHARGE
507766-03
06/2019
Supersedes 507766-02
THIS MANUAL MUST BE LEFT WITH THE
HOMEOWNER FOR FUTURE REFERENCE
This is a safety alert symbol and should never be
ignored. When you see this symbol on labels or in man-
uals, be alert to the potential for personal injury or death.
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
equivalent), service agency or the gas supplier.
As with any mechanical equipment, contact with sharp
sheet metal edges can result in personal injury. Take
care while handling this equipment and wear gloves and
protective clothing.
Gas Piping ....................................................................33
Electrical .......................................................................35
Unit Start Up .................................................................39
Gas Pressure Measurement.........................................40
Proper Combustion.......................................................41
High Altitude .................................................................41
Other Unit Adjustments.................................................42
Service..........................................................................43
Repair Parts List ...........................................................45
Start Up Check List.......................................................47
Blower Data ..................................................................49
Page 1
WARNING
CAUTION

Advertisement

Table of Contents
loading

Related Manuals for Lennox ELITE Series

Summary of Contents for Lennox ELITE Series

  • Page 1: Table Of Contents

    INSTALLATION INSTRUCTIONS EL196DFE © 2020 Lennox Industries Inc. Dallas, Texas USA ELITE SERIES GAS FURNACE ® DOWNFLOW AIR DISCHARGE 507766-03 06/2019 Supersedes 507766-02 THIS MANUAL MUST BE LEFT WITH THE HOMEOWNER FOR FUTURE REFERENCE This is a safety alert symbol and should never be ignored.

  • Page 2: Unit Dimensions - Inches (Mm)

    Unit Dimensions - inches (mm) 9/16 (14) COMBUSTION Flue Condensate Trap Assembly AIR INTAKE Furnished for external field installation (178) RETURN AIR on either side of unit. OPENING EXHAUST AIR (See installation instructions OUTLET for additional information.) 2-1/16 (52) 2-1/4 9/16 (14) (57)

  • Page 3: El196Dfe Gas Furnace

    EL196DFE Gas Furnace Shipping and Packing List Package 1 of 1 contains The EL196DFE Category IV gas furnace is shipped ready for installation in the downflow position. 1 - Assembled EL196DFE unit The furnace is equipped for installation in natural gas applica- 1 - Bag assembly containing the following: tions.

  • Page 4: Use Of Furnace As A Construction Heaterl

    In the absence of local codes, units must be installed In Canada, all electrical wiring and grounding for the unit according to the current National Fuel Gas Code (AN- must be installed according to the current regulations of SI-Z223.1/NFPA 54). The National Fuel Gas Code is avail- the Canadian Electrical Code Part I (CSA Standard C22.1) able from the following address: and/or local codes.

  • Page 5: General

    FAILURE TO FOLLOW THE ABOVE INSTALLATION IN- Chlorine base swimming pool chemicals STRUCTIONS VOIDS THE MANUFACTURER’S EQUIP- Water softening chemicals MENT LIMITED WARRANTY. LENNOX DISCLAIMS ALL LIABILITY IN CONNECTION WITH INSTALLER’S De-icing salts or chemicals FAILURE TO FOLLOW THE ABOVE INSTALLATION IN- Carbon tetrachloride STRUCTIONS.
  • Page 6 When the furnace is installed so that supply ducts car- CAUTION ry air irculated by the furnace to areas outside the space containing the furnace, the return air must be handled by Do not install the furnace in a corrosive or contaminated ducts which are sealed to the furnace casing and which atmosphere.
  • Page 7 Air from Outside EQUIPMENT IN CONFINED SPACE If air from outside is brought in for combustion and ventila- (Inlet Air from Ventilated Crawlspace and Outlet Air to Outside) tion, the confined space shall be provided with two perma- nent openings. One opening shall be within 12” (305mm) Roof Terminated of the top of the enclosure and one within 12”...

  • Page 8: Setting Equipment

    Shipping Bolt Removal EQUIPMENT IN CONFINED SPACE - ALL AIR FROM OUTSIDE Units with 1/2 and 3/4 hp blower motor are equipped (All Air Through Ventilated Attic) with three flexible legs and one rigid leg. The rigid leg is equipped with a shipping bolt and a flat white plastic washer (rather than the rubber mounting grommet used ROOF TERMINATED VENTILATION LOUVERS...
  • Page 9 WARNING WARNING Blower access panel must be securely in place when Improper installation of the furnace can result in personal blower and burners are operating. Gas fumes, which injury or death. Combustion and flue products must could contain carbon monoxide, can be drawn into living never be allowed to enter the return air system or air space resulting in personal injury or death.
  • Page 10 The unit may be installed three ways in downflow applica- TABLE 1 tions: on non-combustible flooring, on combustible floor- NON-COMBUSTIBLE FLOOR OPENING SIZE ing using an additive base, or on a reverse-flow cooling coil cabinet. Do not drag the unit across the floor in the Front to Rear Side to Side Cabinet...

  • Page 11: Filters

    FURNACE FURNACE SUPPLY AIR PLENUM PROPERLY COMBUSTIBLE SIZED FLOOR FLOORING BASE COOLING COIL OPENING PROPERLY SIZED FLOOR OPENING PLENUM Figure 15 2 - After opening is cut, set the combustible flooring Figure 16 base into opening. 3 - Check fiberglass strips on the combustible flooring PLENUM SECURE FROM base to make sure they are properly glued and...

  • Page 12: Duct System

    Before using any filter with this system, check the specifications provided by the filter manufacturer against the data given in the appropriate Lennox Product Specifications bulletin. Additional information is provided in Service and Application Note ACC002 (August 2000).
  • Page 13 CAUTION IMPORTANT Solvent cements for plastic pipe are flammable liquids EL196DFE exhaust and intake connections are made and should be kept away from all sources of ignition. of PVC. Use PVC primer and solvent cement when Do not use excessive amounts of solvent cement when using PVC vent pipe.

  • Page 14: Joint Cementing Procedure

    TABLE 5 OUTDOOR TERMINATION USAGE* STANDARD CONCENTRIC Flush Wall Ring Wall Kit 1-1/2 inch 2 inch 3 inch Mount Kit Vent Pipe 2 inch 3 inch 2 inch Input Size Field 51W11 71M80 69M29 60L46 Dia. in. 22G44 44J40 Fabricated (US) (US) (US)

  • Page 15: Venting Practices

    1 - In areas where piping penetrates joists or interior Venting Practices walls, hole must be large enough to allow clearance on all sides of pipe through center of hole using a hanger. Piping Suspension Guidelines 2 - When furnace is installed in a residence where unit SCHEDULE 40 is shut down for an extended period of time, such PVC - 5'...
  • Page 16 Table 7 lists the maximum pipe lengths permitted. NOTE - Exhaust piping should be checked carefully to make sure there NOTE - Lennox offers a glueless vent adapter kit 17H92 as an are no sags or low spots. option for exhaust exiting at the furnace top cap coupling.
  • Page 17 TABLE 7 NOTE - Size intake and exhaust pipe length separately. Values in table are for Intake OR Exhaust, not combined total. Both Intake and Exhaust must be same pipe size. NOTE - Additional vent pipe and elbows used to terminate the vent pipe outside the structure must be included in the total vent length calculation. Standard Termination at Elevation 0 - 4500 ft 1-1/2”...
  • Page 18 TABLE 7 continued NOTE - Size intake and exhaust pipe length separately. Values in table are for Intake OR Exhaust, not combined total. Both Intake and Exhaust must be same pipe size. NOTE - Additional vent pipe and elbows used to terminate the vent pipe outside the structure must be included in the total vent length calculation. Concentric Termination at Elevation 0 - 4500 ft 1-1/2”...
  • Page 19 TABLE 8 Maximum Allowable Exhaust Vent Lengths With Furnace Installed in a Closet or Basement Using Ventilated Attic or Crawl Space For Intake Air in Feet NOTE - Additional vent pipe and elbows used to terminate the vent pipe outside the structure must be included in the total vent length calculation.
  • Page 20 TYPICAL EXHAUST PIPE CONNECTIONS 045/070 Only 2” 1−1/2” 2” 2” 2” TRANSITION 2” 2” Exhaust Exhaust 3” DO NOT transition from larger to smaller pipe in horizontal runs TRANSITION of exhaust pipe. INTAKE EXHAUST DO NOT transition from smaller *2” to larger pipe size in horizontal TOP VIEW runs of exhaust pipe.
  • Page 21 Intake Piping TYPICAL AIR INTAKE PIPE CONNECTIONS The EL196DFE furnace may be installed in either direct NON−DIRECT VENT APPLICATIONS vent or non-direct vent applications. In non-direct vent applications, when intake air will be drawn into the furnace INTAKE SCREEN from the surrounding space, the indoor air quality must be (Provided) considered.
  • Page 22 In Direct Vent applications, combustion air is taken from EQUIPMENT IN CONFINED SPACE outdoors and the flue gases are discharged to the out- (Inlet Air from Ventilated Attic and Outlet Air to Outside) doors. The EL196DFE is then classified as a direct vent, Category IV gas furnace.
  • Page 23 TABLE 9 Maximum Allowable Exhaust Vent Pipe Length (in ft.) Without Insulation In Unconditioned Space For Winter Design Temperatures Single - Stage High Efficiency Furnace Winter Design Vent Pipe Unit Input Size Temperatures1 °F (°C) Diameter 1-1/2 in 32 to 21 2 in (0 to -6) 2-1/2 in...
  • Page 24 ‡ Permitted only if veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor. Lennox recommends avoiding this location if possible. Figure 29...
  • Page 25 ‡ Permitted only if veranda, porch, deck or balcony is fully open on a minimum of two sides beneath the floor. Lennox recommends avoiding this location if possible. Figure 30 Page 25...
  • Page 26 Details of Intake and Exhaust Piping Terminations for 3”(76mm) MAX. Direct Vent Installations Inches(mm) NOTE - In Direct Vent installations, combustion air is taken UNCONDITIONED from outdoors and flue gases are discharged to outdoors. ATTIC SPACE 8” (203mm) MIN NOTE - Flue gas may be slightly acidic and may adverse- ly affect some building materials.
  • Page 27 7 - If intake and exhaust piping must be run up a side wall to position above snow accumulation or other obstructions, iping must be supported. At least one 12” EXHAUST bracket must be used within 6” from the top of the (305mm) VENT 5-1/2”...
  • Page 28 FIELD FABRICATED WALL TERMINATION NOTE − FIELD−PROVIDED REDUCER MAY BE 2” (51mm) 3” (76mm) REQUIRED TO ADAPT LARGER VENT PIPE SIZE Vent Pipe Vent Pipe TO TERMINATION A− Minimum clearance above grade or average 12” (305 mm) 12” (305 mm) snow accumulation B−...
  • Page 29 SEAL CHIMNEY Crawl Space and Extended Horizontal Venting Lennox provides kit 51W18 (USA) and kit 15Z70 (Cana- da) to install 2” or 3” PVC exhaust piping through the floor NOTE - Do joists and into the the crawl space. See figure 41.
  • Page 30 1 - Determine which side condensate piping will exit and line. Heat cable kit is available from Lennox in various the unit, location of trap, field-provided fittings and lengths;...
  • Page 31 Furnace with Evaporator Coil Condensate Trap With Optional Overflow Switch Using a Separate Drain From Evaporator Coil HorizontalFurnace4” Min. to 5” Max.above condensatedrain connection) Field Provided Vent 1” min. 2” max. above condensate drain. Condensate FurnaceCondensate Drain Connection DrainConnection Optional Evaporator Drain Line (vent required) Drain...
  • Page 32 TRAP / DRAIN ASSEMBLY USING 1/2” PVC OR 3/4” PVC Optional Condensate Drain Connection Adapter 3/4 inch slip X 3/4 inch mpt (not furnished) 90° Street Elbow 3/4 inch PVC (not furnished) Adapter 3/4 inch slip X 3/4 inch mpt (not furnished) Condensate Drain Connection In Unit 1 (25 mm) Min.

  • Page 33: Gas Piping

    IMPORTANT Gas Piping Gas supply piping should not allow more than 0.5”W.C. Compounds used on threaded joints of gas piping must drop in pressure between gas meter and unit. Supply gas be resistant to the actions of liquified petroleum gases. pipe must not be smaller than unit gas connection.
  • Page 34 Left Side Piping AUTOMATIC MANUAL (Standard) GAS VALVE MAIN SHUT-OFF MANUAL (with manual VALVE AUTOMATIC MAIN SHUT-OFF shut-off valve) (1/8 in. NPT GAS VALVE VALVE plugged tap (with manual (1/8 in. NPT shown) shut-off valve) plugged tap shown) GROUND JOINT UNION GROUND JOINT...

  • Page 35: Electrical

    Removal of the Furnace from Common Vent Electrical In the event that an existing furnace is removed from a ELECTROSTATIC DISCHARGE (ESD) venting system commonly run with separate gas applianc- Precautions and Procedures es, the venting system is likely to be too large to properly CAUTION vent the remaining attached appliances.
  • Page 36 Install a separate (properly sized) disconnect switch near One 24V ”H” 1/4” spade terminal is provided on the fur- the furnace so that power can be turned off for servicing. nace integrated control. See figure 54 for integrated con- trol configuration. The terminal is energized in the heating Before connecting the thermostat or the power wiring, mode when the combustion air inducer is operating and check to make sure the wires will be long enough for ser-...
  • Page 37 TYPICAL EL196DFE WIRING DIAGRAM Figure 53 Page 37...
  • Page 38 TABLE 12 INTEGRATED CONTROL (Automatic Hot Surface Ignition System) 1/4” QUICK CONNECT TERMINALS 120HUM Humidifier 120VAC LINE 120VAC XFMR Transformer 120VAC CIRC Indoor blower 120VAC Indoor air qualityaccessory 120VAC NEUTRAL Common 120VAC HUM24 Humidifier 24VAC 3/16” QUICK CONNECT TERMINALS COOL Cooling tap 24VAC HEAT Heating tap 24VAC...

  • Page 39: Unit Start Up

    6 - Adjust the thermostat to deactivate the heating Unit Start-Up demand and wait for the combustion air inducer to FOR YOUR SAFETY READ BEFORE OPERATING stop. At this point, the trap should be primed with sufficient water to ensure proper condensate drain WARNING operation.

  • Page 40: Gas Pressure Measurement

    Failure To Operate Furnace should operate at least 5 minutes before check- ing gas flow. Determine time in seconds for two revolu- If the unit fails to operate, check the following: tions of gas through the meter. (Two revolutions assures a 1 - Is the thermostat calling for heat? more accurate time).

  • Page 41: Proper Combustion

    Proper Combustion High Altitude Information Furnace should operate minimum 15 minutes with correct NOTE - In Canada, certification for installations at eleva- manifold pressure and gas flow rate before checking com- tions over 4500 feet (1372 m) is the jurisdiction of local bustion.

  • Page 42: Testing Non Direct Vent Appliances For Proper Air

    8 - If improper venting is observed during any of the Testing of Non-Direct Vent Applications for Proper above tests, the venting system must be corrected Venting and Sufficient Combustion Air or sufficient combustion/make-up air must be provided. The venting system should be re-sized WARNING to approach the minimum size as determined by using the appropriate tables in appendix G in the...

  • Page 43: Service

    Figure 56 Blower Speeds At the beginning of each heating season, and to comply with the Lennox Limited Warranty, your system should be Follow the steps below to change the blower speeds. checked as follows: 1 - Turn off electrical power to furnace.
  • Page 44 10- Inspect the furnace intake and exhaust pipes to make Cleaning the Burner Assembly sure they are in place, structurally sound, without If cleaning the burners becomes necessary, follow the holes, blockage or leakage and the exhaust pipe steps below: is sloped toward the furnace.

  • Page 45: Repair Parts List

    ADDENDUM FOR ALL PROVINCES OF CANADA See below for venting in all provinces of Canada. Lennox approves the following termination for use in all provinces of Canada. 12”...
  • Page 46 Requirements for Commonwealth of Massachusetts Modifications to NFPA-54, Chapter 10 4 - INSPECTION. The state or local gas inspector of the side wall, horizontally vented, gas-fueled equipment Revise NFPA-54 section 10.8.3 to add the following shall not approve the installation unless, upon requirements: inspection, the inspector observes carbon monoxide For all side wall, horizontally vented, gas-fueled equip-...

  • Page 47: Start Up Check List

    Start-Up & Performance Check List UNIT SET UP (typical) Furnace: Model Number_______________ Serial Number_________________ SUPPLY Line Voltage GAS SUPPLY LP Propane Gas Natural Gas Piping Connections Tight Leak Tested Flter Supply Line Pressure “W.C.________ RETURN AIR Gas Supply Pressure DUCT SYSTEM SUPPLY AIR DUCT Sealed INTAKE / EXHAUST PIPE...
  • Page 48 UNIT OPERATION HEATING MODE COOLING MODE GAS MANIFOLD PRESSURE “W.C._____ INDOOR BLOWER AMPS______ COMBUSTION SAMPLE CO CO PPM_______ TEMPERATURE DROP ______ Return Duct Temperature _________ INDOOR BLOWER AMPS______ Supply Duct Temperature _______ Temperature Drop = _________ TEMPERATURE RISE TOTAL EXTERNAL STATIC (dry coil) Supply Duct Temperature ________ Supply External Static _______ Return Duct Temperature...

  • Page 49: Blower Data

    Blower Data EL196DF045XE36B PERFORMANCE (Less Filter) Air Volume / Watts at Various Blower Speeds External High Medium-High Medium Medium-Low Static (Black) (Brown) (Blue) (Yellow) (Red) Pressure in. w.g. Watts Watts Watts Watts Watts 0.00 1455 1275 1175 0.10 1425 1250 1145 0.20 1395...
  • Page 50 Blower Data EL196DF090XE48C PERFORMANCE (Less Filter) Air Volume / Watts at Various Blower Speeds External High Medium-High Medium Medium-Low Static (Black) (Brown) (Blue) (Yellow) (Red) Pressure in. w.g. Watts Watts Watts Watts Watts 0.00 1760 1555 1405 1315 1190 0.10 1730 1515 1375...

This manual is also suitable for:

Elite el196dfeEl196df045xe36bEl196df070xe48bEl196df090xe48c

Table of Contents