Lennox International Inc EL280DF installation instructions Field Wiring Applications

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TABLE 9

Field Wiring Applications

 

DIP Switch Settings and On−Board Links (See figure 21)

 

 

 

 

 

W915

 

 

 

 

Thermostat

DIP Switch 1

Two−Stage

W951

 

Wiring Connections

 

Cooling

Heat Pumps

 

 

 

 

 

 

 

 

1 Heat / 1 Cool

ON

Intact

Intact

S1

CONTROL

OUTDOOR

NOTE − Use DIP

 

 

 

T’STAT

TERM. STRIP

UNIT

 

 

 

 

 

 

switch 2 to set sec-

 

 

 

 

 

 

ond−stage heat ON

 

 

 

 

 

 

delay.

 

 

 

 

 

 

OFF10 minutes.

 

 

 

 

 

 

ON−15 minutes.

 

 

 

 

 

 

1 Heat / 2 Cool

ON

Cut

Intact

S1

CONTROL

OUTDOOR

NOTE − Use DIP

 

 

 

T’STAT

TERM. STRIP

UNIT

 

 

 

 

 

 

switch 2 to set sec-

 

 

 

 

 

 

ond−stage heat ON

 

 

 

 

 

 

delay.

 

 

 

 

 

 

OFF−10 minutes.

 

 

 

 

 

 

ON−15 minutes.

 

 

 

 

 

 

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Contents Installation Instructions EL280DF Table of ContentsUnit Dimensions − inches mm TOP ViewShipping and Packing List Safety InformationEL280DF Gas Furnace Use of Furnace as Construction Heater GeneralCombustion, Dilution & Ventilation Air Equipment in Confined Space ALL AIR from Inside Equipment in Confined Space Combustible Floor Opening Size Downflow InstallationNON−COMBUSTIBLE Floor Opening Size Setting Equipment Filters Duct System VentingTables for installations Mm of connector diameter as follows MIN MAX FAN + FAN FAN + NAT Gas Piping Carbon Monoxide Poisoning HazardGas Pipe Capacity − ft3/hr m3/hr Electrostatic Discharge ESD Interior MAKE−UP BOX InstallationElectrical Page Field Wiring Applications OFF EL280DF Schematic Wiring Diagram Integrated Control TWO−STAGE Integrated ControlFor Your Safety Read Before Lighting Unit Start−UpGas Pressure Adjustment GAS Meter Clocking ChartEL280DF DialProper Combustion High AltitudeOther Unit Adjustments Heat FAN-OFF Time in SecondsHeating Sequence of Operation Service Electrical SHOCK, Fire Or Explosion HazardHeat Exchanger Removal Repair Parts ListEL280DF BURNER, Combustion AIR Inducer Assembly Start−Up & Performance Check List Cooling Mode Temperature RiseUnit Operation Drain Line
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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.