Lennox International Inc Elite Series Gas Furnace Upflow/Horizontal Air Discharge, EL280UH

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TABLE 10

Field Wiring Applications

 

DIP Switch Settings and On−Board Links (See figure 33)

 

 

 

 

 

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 Table of Contents Installation Instructions EL280UHSupply AIR Opening Unit Dimensions − inches mmParts Arrangement Safety Information EL280UH Gas FurnaceShipping 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 Setting Equipment Return Air Bracket Duct System FiltersUpflow Position VentingHorizontal Right Position Horizontal Left PositionVent Connection Upflow and Horizontal Position Common Venting Using Metal−Lined Masonry Chimney −1/2 To these instructions and the provided venting tables. If Feet FAN + FAN FAN + NAT 130 Carbon Monoxide Poisoning Hazard Leum gases Gas PipingHorizontal Applications Possible Gas Piping Configurations Interior MAKE−UP BOX Installation ElectricalElectrostatic Discharge ESD Page Field Wiring Applications OFF EL280UH Schematic Wiring Diagram TWO−STAGE Integrated Control Typical EL280UH Field Wiring DiagramIntegrated Control Unit Start−Up For Your Safety Read Before LightingGas Pressure Adjustment Proper CombustionHigh Altitude Manifold Pressure Settings at all Altitudes Heat FAN-OFF Time in Seconds Other Unit AdjustmentsHeating Sequence of Operation Blower Data Pressure Bottom and One Side Electrical SHOCK, Fire Or Explosion Hazard ServiceHeat Exchanger Removal EL280UH BURNER, Combustion AIR Inducer AssemblyPage Repair Parts List Planned ServiceIntegrated Control Diagnostic Codes Flash Code Status / Error DescriptionLED On Next Troubleshooting Heating Sequence of OperationHeating Sequence of Operation U1.40 microamps Or Heat Demand is SATISFIED. a Five Cooling Sequence of Operation Troubleshooting Cooling Sequence of OperationContinuous LOW Speed FAN Sequence of Operation Troubleshooting Continuous Fan Sequence of OperationStart−Up & Performance Check List Drain Line Cooling ModeTemperature Rise Unit Operation
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Elite Series Gas Furnace Upflow/Horizontal Air Discharge, EL280UH specifications

Lennox International Inc. has established itself as a leader in the heating and cooling industry, providing innovative solutions for both residential and commercial environments. One of their notable products is the EL280UH, a high-efficiency gas furnace designed to offer optimal comfort while minimizing energy consumption.

The EL280UH operates with an impressive Annual Fuel Utilization Efficiency (AFUE) rating of up to 80%. This efficiency rating means that 80% of the fuel consumed is converted into heat, making it a cost-effective option for homeowners looking to reduce their utility bills. The furnace’s design is tailored to deliver reliable warmth during the coldest months, ensuring a comfortable home environment.

A key feature of the EL280UH is its two-stage heating capability. This technology allows the furnace to operate at a lower heating output for less demanding conditions, which not only conserves energy but also helps maintain a more consistent temperature in the home. When the demand for heat increases, the furnace can seamlessly transition to its higher output setting, providing quick and effective heating when needed.

Additionally, the EL280UH is equipped with a durable cabinet that minimizes heat loss, enhancing overall performance. The design incorporates several sound-dampening features as well, which contributes to quieter operation, allowing homeowners to enjoy a serene indoor environment.

The furnace also includes an advanced control system that integrates easily with smart home technology. This feature enables users to monitor and adjust their heating settings from anywhere using a smartphone app, creating added convenience and control over home heating.

Safety is another paramount aspect of the EL280UH. It includes an integrated flame sensor and pressure switch, ensuring reliable operation while minimizing risks associated with furnace malfunctions. The design adheres to stringent safety standards, providing users with peace of mind.

In summary, the Lennox EL280UH furnace stands out for its high efficiency, advanced features, and commitment to user safety. Its two-stage heating capability, quiet operation, and smart home integration make it an excellent choice for homeowners looking to enhance their heating system while being energy-conscious. The EL280UH embodies Lennox's dedication to quality and innovation, ensuring that comfort and efficiency go hand in hand.