Lennox International Inc EL280DF installation instructions Start−Up & Performance Check List

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Start−Up & Performance Check List

UNIT SET UP

(typical)

2

2

Unit Model Number_______________

Serial Number___________________

Line Voltage

5

SUPPLY

AIR

upflow furnace shown

1

Gas Supply Pressure

1

4

3

Filter

RETURN

AIR

1GAS SUPPLY

Natural Gas

LP/Propane Gas

Piping Connections Tight

Leak Tested

Supply Line Pressure .C.________

2VENT / EXHAUST PIPE

Secure to Unit

Elbows Secured to Pipe

Roof Flashing (water tight)

Vent Pipe Supported

3DUCT SYSTEM

SUPPLY AIR DUCT

Sealed

Insulated (if necessary)

Registers Open and Unobstructed

RETURN DUCT

Sealed

Filter Installed and Clean

Grilles Unobstructed

4INTEGRATED CONTROL

DIP Switches Set (if applicable) Appropriate Links in Place (if applicable)

5VOLTAGE CHECK Supply Voltage _____

Electrical Connections Tight

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Contents Table of Contents Installation Instructions EL280DFTOP View Unit Dimensions − inches mmEL280DF Gas Furnace Safety InformationShipping and Packing List General Use of Furnace as Construction HeaterCombustion, Dilution & Ventilation Air Equipment in Confined Space ALL AIR from Inside Equipment in Confined Space NON−COMBUSTIBLE Floor Opening Size Downflow InstallationCombustible Floor Opening Size Setting Equipment Filters Venting Duct SystemTables for installations Mm of connector diameter as follows MIN MAX FAN + FAN FAN + NAT Carbon Monoxide Poisoning Hazard Gas PipingGas Pipe Capacity − ft3/hr m3/hr Electrical Interior MAKE−UP BOX InstallationElectrostatic Discharge ESD Page Field Wiring Applications OFF EL280DF Schematic Wiring Diagram TWO−STAGE Integrated Control Integrated ControlUnit Start−Up For Your Safety Read Before LightingDial Gas Pressure AdjustmentGAS Meter Clocking Chart EL280DFHigh Altitude Proper CombustionHeat FAN-OFF Time in Seconds Other Unit AdjustmentsHeating Sequence of Operation Electrical SHOCK, Fire Or Explosion Hazard ServiceEL280DF BURNER, Combustion AIR Inducer Assembly Repair Parts ListHeat Exchanger Removal Start−Up & Performance Check List Drain Line Cooling ModeTemperature Rise Unit Operation
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EL280DF specifications

Lennox International Inc. has been a leader in the HVAC (Heating, Ventilation, and Air Conditioning) industry for decades, consistently delivering high-quality and energy-efficient products. Among their lineup, the Lennox EL280DF Gas Furnace stands out as an excellent option for homeowners seeking reliable heating solutions.

The EL280DF is a two-stage gas furnace that offers improved efficiency and comfort, making it an ideal choice for moderate climates. One of the main features of the EL280DF is its energy efficiency, boasting an AFUE (Annual Fuel Utilization Efficiency) rating of up to 80%. This means that a significant portion of the fuel consumed is converted into heating energy, resulting in lower energy bills and reduced environmental impact.

Another noteworthy characteristic of the EL280DF is its quiet operation. Equipped with advanced sound-dampening technologies, the furnace operates with minimal noise, ensuring that your home remains a serene environment. This is especially important during the colder months when the furnace is often in frequent use.

The EL280DF also employs a two-stage heating system, which allows it to operate at a lower capacity during milder temperatures and ramp up to full capacity during the coldest days. This feature not only enhances comfort by maintaining a more consistent temperature but also contributes to energy savings by reducing unnecessary energy consumption.

In terms of installation, the EL280DF is designed for flexibility. It can be configured for various types of homes and installations, making it suitable for both new constructions and system replacements. Its compact size allows it to fit in tight spaces, providing versatility in home design.

Moreover, the EL280DF is equipped with a durable heat exchanger that ensures longevity and reliability. Lennox has also included features like a self-diagnostic control board, making troubleshooting easier and enhancing the overall reliability of the system.

In conclusion, the Lennox EL280DF Gas Furnace is a remarkable combination of efficiency, quiet operation, and versatility. With its two-stage heating capabilities and advanced technologies, it stands as a solid choice for homeowners looking to invest in a durable and energy-efficient heating solution. Whether building a new home or upgrading an old system, the EL280DF promises comfort and reliability during the coldest months of the year.