Lennox International Inc EL296UHE Electrical, GAS Pipe Capacity FT3/HR kL/HR

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TABLE 10

GAS PIPE CAPACITY - FT3/HR (kL/HR)

Nominal

Internal

 

 

 

 

Length of Pipe - feet (m)

 

 

 

Iron Pipe

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Diameter

 

 

 

 

 

 

 

 

 

 

 

Size

 

 

 

 

 

 

 

 

 

 

 

inches

10

20

30

40

 

50

60

70

80

90

100

inches

 

(mm)

(3.048)

(6.096)

(9.144)

(12.192)

 

(15.240)

(18.288)

(21.336)

(24.384)

(27.432)

(30.480)

(mm)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1/2

.622

172

118

95

81

 

72

65

60

56

52

50

(12.7)

(17.799)

(4.87)

(3.34)

(2.69)

(2.29)

 

(2.03)

(1.84)

(1.69)

(1.58)

(1.47)

(1.42)

 

 

 

 

 

 

 

 

 

 

 

 

 

3/4

.824

360

247

199

170

 

151

137

126

117

110

104

(19.05)

(20.930)

(10.19)

(7.00)

(5.63)

(4.81)

 

(4.28)

(3.87)

(3.56)

(3.31)

(3.11)

(2.94)

 

 

 

 

 

 

 

 

 

 

 

 

 

1

1.049

678

466

374

320

 

284

257

237

220

207

195

(25.4)

(26.645)

(19.19)

(13.19)

(10.59)

(9.06)

 

(8.04)

(7.27)

(6.71)

(6.23)

(5.86)

(5.52)

 

 

 

 

 

 

 

 

 

 

 

 

 

1-1/4

1.380

1350

957

768

657

 

583

528

486

452

424

400

(31.75)

(35.052)

(38.22)

(27.09)

(22.25)

(18.60)

 

(16.50)

(14.95)

(13.76)

(12.79)

(12.00)

(11.33)

 

 

 

 

 

 

 

 

 

 

 

 

 

1-1/2

1.610

2090

1430

1150

985

 

873

791

728

677

635

600

(38.1)

(40.894)

(59.18)

(40.49)

(32.56)

(27.89)

 

(24.72)

(22.39)

(20.61)

(19.17)

(17.98)

(17.00)

 

 

 

 

 

 

 

 

 

 

 

 

 

2

2.067

4020

2760

2220

1900

 

1680

1520

1400

1300

1220

1160

(50.8)

(52.502)

(113.83)

(78.15)

(62.86)

(53.80)

 

(47.57)

(43.04)

(39.64)

(36.81)

(34.55)

(32.844)

 

 

 

 

 

 

 

 

 

 

 

 

 

2-1/2

2.469

6400

4400

3530

3020

 

2680

2480

2230

2080

1950

1840

(63.5)

(67.713)

(181.22)

(124.59)

(99.95)

(85.51)

 

(75.88)

(70.22)

(63.14)

(58.89)

(55.22)

(52.10)

 

 

 

 

 

 

 

 

 

 

 

 

 

3

3.068

11300

7780

6250

5350

 

4740

4290

3950

3670

3450

3260

(76.2)

(77.927)

(319.98)

(220.30)

(176.98)

(151.49)

 

(134.22)

(121.47)

(111.85)

(103.92)

(97.69)

(92.31)

 

 

 

 

 

 

 

 

 

 

 

 

 

NOTE - Capacity given in cubic feet of gas per hour (kilo liters of gas per hour) and based on 0.60 specific gravity gas.

Electrical

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 handling the control.

INTERIOR MAKE-UP BOX INSTALLATION

remove and relocate

plug to unused

opening on left side

MAKE-UP

BOX

Right Side

FIGURE 63

The unit is equipped with a field make-up box. The make- up box may be moved to the right side of the furnace to fa­ cilitate installation. Secure the excess wire to the existing harness to protect it from damage.

Refer to figure 64 for field wiring, schematic wiring diagram and troubleshooting.

The power supply wiring must meet Class I restrictions. Protected by either a fuse or circuit breaker, select circuit protection and wire size according to unit nameplate.

NOTE - Unit nameplate states maximum current draw. Maximum Over-Current Protection allowed is 15 AMP. Holes are on both sides of the furnace cabinet to facilitate wiring.

Install a separate (properly sized) disconnect switch near the furnace so that power can be turned off for servicing. Before connecting the thermostat check to make sure the wires will be long enough for servicing at a later date. Make sure that thermostat wire is long enough to facilitate future removal of blower for service.

Complete the wiring connections to the equipment. Use the provided unit wiring diagram and the field wiring diagram shown in figure 64. Use 18-gauge wire or larger that is suit­ able for Class II rating for thermostat connections.

Electrically ground the unit according to local codes or, in the absence of local codes, according to the current Na­ tional Electric Code (ANSI/NFPA No. 70) for the USA and current Canadian Electric Code part 1 (CSA standard C22.1) for Canada. A green ground wire is provided in the field make-up box.

NOTE - The EL296UHE furnace contains electronic components that are polarity sensitive. Make sure that the furnace is wired correctly and is properly grounded.

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Contents Installation Instructions EL296UHE Table of ContentsEL296UHE Unit Dimensions inches mm TOP ViewSafety Information EL296UHE Gas FurnaceShipping and Packing List Package 1 of 1 containsInstalled in Combination with a Cooling Coil Installation LocationsUse of Furnace as Construction Heater General Combustion, Dilution & Ventilation AirConfined Space Air from InsideUnconfined Space Equipment in Confined Space ALL AIR from InsideEquipment in Confined Space ALL AIR from Outside Air from OutsideEquipment in Confined Space Installation Setting Equipment Shipping Bolt RemovalMoved before the furnace is placed into operation. Af­ EL296 Furnaces with 1/2 HP Blower MotorSetting Equipment Front ViewSide View END ViewReturn Air Guidelines Side Return Air With transition and filterRemoving the Bottom Panel Optional Return Air Base Upflow Applications OnlyFrontBack Horizontal Application Installation Clearances Suspended Installation of Horizontal UnitPlatform Installation of Horizontal Unit Horizontal Suspension KITFilters Pipe & Fittings SpecificationsDuct System Joint Cementing Procedure Piping and Fittings SpecificationsSpecification Primer & Solvent CementVenting Practices Piping Suspension GuidelinesWall Thickness Guidelines Removal of the Furnace from Common VentHorizontal Installation Offset Requirements Vent Piping GuidelinesExhaust Piping Figures 22, 24 Minimum Vent Pipe LengthsPiping Size Process Outdoor Termination Usage Standard ConcentricStandard Termination Elevation 4500 10,000 ft 135Concentric Termination at Elevation 0 4500 ft Maximum Allowable Intake or Exhaust Vent Length in FeetConcentric Termination Elevation 4501 10,000 ft Standard Termination Elevation 4500 10,000 ft Applications Right Hand Discharge Shown Intake Piping General Guidelines for Vent Terminations 32 to 20 to US Installations1 Canadian Installations2 Inside Corner DetailNo minimum to outside corner Direct Vent Roof Termination KIT Exiting Exhaust and Intake Vent Different pressure zonesEL296UHE Alternate Terminations Tee & Forty-Five Degree Elbows Only 51MM 76MM51MM 7MM Vent Pipe SupportFront View Side ViewTop View Exhaust EL296UHE Direct Vent Application Using Existing Chimney NON-DIRECT Vent Roof Termination KITEL296UHE NON-DIRECT Vent Application Using Existing Chimney Condensate PipingCondensate Trap With Optional Overflow Switch Condensate Trap LocationsEL296UHE with Evaporator Coil Using a Common Drain Unit shown in horizontal left-hand discharge positionTrap / Drain Assembly Using 1/2 PVC or 3/4 PVC 178Leak Check Gas PipingPlugged TAP Horizontal Applications Possible Gas Piping Configurations Left Side Piping Standard Right Side Piping AlternatePrecautions and Procedures Interior MAKE-UP BOX InstallationElectrical GAS Pipe Capacity FT3/HR kL/HROn-Board Links and Diagnostic Push Button Figure Typical EL296UHE Wiring Diagram Integrated Control LEDIntegrated Control DIP Switch Settings EL296 Field Wiring Applications With Conventional Thermostat OFF With tstat withHumidity control Heat / 1 CoolSingle Stage Heat PumpComfortSense 7000 L7724UOFF For Your Safety Read Before Operating Unit Start-UpGAS Meter Clocking Chart Gas Pressure AdjustmentDial Proper Combustion High Altitude Information Carbon Monoxide Poisoning Hazard Other Unit Adjustments Heating Sequence of OperationRepair Parts List Cabinet PartsControl Panel Parts Blower PartsService Cleaning The Burner AssemblyBlower FiltersStart-Up & Performance Check List TypicalTemperature Rise Total External Static Drain LineCondensate Line Thermostat Vent PipeRequirements for Commonwealth of Massachusetts Approved Carbon Monoxide Detectors

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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