Lennox International Inc Elite Series Gas Furnace, EL296UHE Removing the Bottom Panel, FrontBack

Page 11

Optional Return Air Base (Upflow Applications Only)

AIR FLOW

17−1/2 (446) B Width (50W98)

21 (533) C Width (50W99)

24−1/2 (622) D Width (51W00)

FRONT VIEW

FURNACE

FRONT

INDOOR AIR

QUALITY

CABINET

(PCO, Filter

Cabinet, etc.)

OPTIONAL

RETURN

AIR BASE

IF BASE

3−1/4

 

 

1 23 (584)

 

 

 

 

IS USED

 

 

Overall

 

 

 

 

(83)

 

 

1

 

 

 

WITHOUT

 

(Maximum)

Minimum

 

 

 

 

 

 

 

IAQ CABINET,

 

 

 

 

 

11 (279)

 

 

A SINGLE

 

1 Unit side return air

2 Maximum

1

22−7/16

RETURN AIR

 

 

14 (356)

 

 

 

 

(570)

PLENUM

 

 

Opening

 

 

 

 

 

 

 

 

Overall

MUST

 

 

 

 

 

 

 

 

 

 

 

 

 

(Maximum)

COVER BOTH

 

 

 

 

 

 

UNIT AND

 

 

 

SIDE RETURN

 

 

RETURN

7−1/4

5−5/8

 

 

AIR BASE

AIR OPENINGS

 

 

(143)

 

 

 

OPENINGS

(184)

 

 

 

 

(Either Side)

 

 

 

 

 

 

 

 

 

 

 

 

23

 

 

 

3/4

 

 

 

 

(584)

 

 

 

 

 

 

 

26−7/8

 

 

 

(19)

 

 

 

 

 

 

 

 

 

 

 

 

(683)

 

 

 

 

SIDE VIEW

NOTE- Optional side return air filter kits are not for use with return air base.

1Both the unit return air opening and the base return air opening must be covered by a single plenum or IAQ cabinet.

Minimum unit side return air opening dimensions for units requiring 1800 cfm of air and over (W x H): 23 x 11 in. (584 x 279 mm). The opening can be cut as needed to accommodate plenum or IAQ cabinet while maintaining dimensions shown.

Side return air openings must be cut in the field. There are cutting guides stenciled on the cabinet for the side return air

opening. The size of the opening must not extend beyond the markings on the furnace cabinet.

2To minimize pressure drop, the largest opening height possible (up to 14 inches) is preferred.

FIGURE 14

Removing the Bottom Panel

Screw

Bottom Cap

Bottom Panel

FIGURE 15

Removing the Bottom Panel

Remove the two screws that secure the bottom cap to the furnace. Pivot the bottom cap down to release the bottom panel. Once the bottom panel has been removed, reinstall the bottom cap. See figure 15.

Horizontal Applications

WARNING

Do not install the furnace on its front or back. See figure 16.

FrontBack

FIGURE 16

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Contents Table of Contents Installation Instructions EL296UHETOP View EL296UHE Unit Dimensions inches mmPackage 1 of 1 contains Safety InformationEL296UHE Gas Furnace Shipping and Packing ListUse of Furnace as Construction Heater Installation LocationsInstalled in Combination with a Cooling Coil Combustion, Dilution & Ventilation Air GeneralEquipment in Confined Space ALL AIR from Inside Confined SpaceAir from Inside Unconfined SpaceEquipment in Confined Space Air from OutsideEquipment in Confined Space ALL AIR from Outside EL296 Furnaces with 1/2 HP Blower Motor Installation Setting EquipmentShipping Bolt Removal Moved before the furnace is placed into operation. Af­END View Setting EquipmentFront View Side ViewSide Return Air With transition and filter Return Air GuidelinesFrontBack Optional Return Air Base Upflow Applications OnlyRemoving the Bottom Panel Horizontal Suspension KIT Horizontal Application Installation ClearancesSuspended Installation of Horizontal Unit Platform Installation of Horizontal UnitDuct System Pipe & Fittings SpecificationsFilters Primer & Solvent Cement Joint Cementing ProcedurePiping and Fittings Specifications SpecificationRemoval of the Furnace from Common Vent Venting PracticesPiping Suspension Guidelines Wall Thickness GuidelinesMinimum Vent Pipe Lengths Horizontal Installation Offset RequirementsVent Piping Guidelines Exhaust Piping Figures 22, 24Piping Size Process Standard Concentric Outdoor Termination Usage135 Standard Termination Elevation 4500 10,000 ftConcentric Termination Elevation 4501 10,000 ft Maximum Allowable Intake or Exhaust Vent Length in FeetConcentric Termination at Elevation 0 4500 ft Standard Termination Elevation 4500 10,000 ft Applications Right Hand Discharge Shown Intake Piping General Guidelines for Vent Terminations 32 to 20 to Inside Corner Detail US Installations1 Canadian Installations2No minimum to outside corner EL296UHE Exiting Exhaust and Intake Vent Different pressure zonesDirect Vent Roof Termination KIT 51MM 76MM Alternate Terminations Tee & Forty-Five Degree Elbows OnlySupport 51MM 7MM Vent PipeTop View Side ViewFront View Exhaust NON-DIRECT Vent Roof Termination KIT EL296UHE Direct Vent Application Using Existing ChimneyCondensate Piping EL296UHE NON-DIRECT Vent Application Using Existing ChimneyCondensate Trap Locations Condensate Trap With Optional Overflow SwitchUnit shown in horizontal left-hand discharge position EL296UHE with Evaporator Coil Using a Common Drain178 Trap / Drain Assembly Using 1/2 PVC or 3/4 PVCPlugged TAP Gas PipingLeak Check Left Side Piping Standard Right Side Piping Alternate Horizontal Applications Possible Gas Piping ConfigurationsGAS Pipe Capacity FT3/HR kL/HR Precautions and ProceduresInterior MAKE-UP BOX Installation ElectricalOn-Board Links and Diagnostic Push Button Figure Typical EL296UHE Wiring Diagram LED Integrated ControlIntegrated Control DIP Switch Settings EL296 Field Wiring Applications With Conventional Thermostat Heat / 1 Cool OFFWith tstat with Humidity control7000 L7724U Single StageHeat Pump ComfortSenseOFF Unit Start-Up For Your Safety Read Before OperatingDial Gas Pressure AdjustmentGAS Meter Clocking Chart Proper Combustion High Altitude Information Carbon Monoxide Poisoning Hazard Heating Sequence of Operation Other Unit AdjustmentsBlower Parts Repair Parts ListCabinet Parts Control Panel PartsFilters ServiceCleaning The Burner Assembly BlowerTypical Start-Up & Performance Check ListVent Pipe Temperature RiseTotal External Static Drain Line Condensate Line ThermostatApproved Carbon Monoxide Detectors Requirements for Commonwealth of Massachusetts

EL296UHE, Elite Series Gas Furnace specifications

Lennox International Inc. has long been a trusted name in the heating, ventilation, and air conditioning (HVAC) industry, and their Elite Series Gas Furnace, the EL296UHE, stands out as a remarkable choice for homeowners seeking efficiency and reliability. This gas furnace is designed to deliver exceptional performance while ensuring the comfort of your living space.

One of the most significant features of the EL296UHE is its impressive Annual Fuel Utilization Efficiency (AFUE) rating of up to 96%. This means that a substantial portion of the energy consumed is converted into heat, translating to lower energy bills and a reduced environmental footprint. By minimizing energy waste, homeowners can enjoy both cost savings and greater environmental responsibility.

The EL296UHE is equipped with a two-stage heating process that allows it to operate at different speeds. This dual-stage functionality offers a more consistent temperature throughout the home, minimizing cold spots and enhancing overall comfort. Additionally, this furnace features a variable-speed blower motor, which not only improves the distribution of heated air but also quietly adjusts the airflow to match the heating requirements of your space.

In terms of technology, the EL296UHE incorporates advanced design elements such as a patented ZenBalance™ technology. This innovation further increases efficiency by adjusting the heating output based on real-time demands, ensuring optimal comfort without excessive energy consumption.

Durability is another hallmark of the EL296UHE. Constructed with high-quality materials, this furnace is built to withstand the rigors of daily use. Its stainless-steel heat exchanger is particularly noteworthy, as it enhances the furnace's ability to operate efficiently while maximizing longevity.

Homeowners are also reassured by the EL296UHE's quiet operation. The design minimizes operational noise, making it an ideal choice for those who prefer a peaceful home environment. Furthermore, the furnace is equipped with an ENERGY STAR® certification, a testament to its energy-efficient performance.

Lastly, Lennox offers comprehensive warranties for the EL296UHE, ensuring peace of mind for consumers. The combination of high efficiency, advanced technology, and durability makes the Lennox Elite Series Gas Furnace, EL296UHE, an excellent investment for homeowners looking to enhance their heating systems for optimal comfort and efficiency.
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