Lennox International Inc EL280DF installation instructions Equipment in Confined Space

Page 7

EQUIPMENT IN CONFINED SPACE

ALL AIR FROM OUTSIDE

(Inlet Air from Crawlspace and Outlet Air to Ventilated Attic)

CHIMNEY OR

GAS VENT

VENTILATION LOUVERS

(Each end of attic)

FURNACE

VENTILATION

LOUVERS

(For unheated crawl space)

OUTLET

AIR

WATER

HEATER

INLET

AIR

NOTE−The inlet and outlet air openings shall each have a free area of at least one square inch (645 mm2) per 4,000 Btu (1.17 kW) per hour of the total input rating of all equipment in the enclosure.

FIGURE 3

 

 

 

 

EQUIPMENT IN CONFINED SPACE

 

 

 

 

 

 

 

ALL AIR FROM OUTSIDE

CHIMNEY

 

 

 

 

(All Air Through Ventilated Attic)

OR GAS

 

 

 

 

 

 

 

 

 

 

 

 

VENT

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

VENTILATION LOUVERS

 

 

 

 

 

 

 

 

 

 

 

 

(Each end of attic)

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

OUTLET

AIR

FURNACE

INLET AIR

 

 

(Ends 12 in.

 

above bottom)

 

WATER

 

HEATER

NOTE−The inlet and outlet air openings shall each have a free area of at least one square inch (645 mm2) per 4,000 Btu (1.17 kW) per hour of the total input rating of all equip- ment in the enclosure.

EQUIPMENT IN

CONFINED SPACE

ALL AIR FROM

OUTSIDE

CHIMNEY

OR GAS

VENT WATER

HEATER

OUTLET AIR

FURNACE

INLET AIR

NOTE − Each air duct opening shall have a free area of at least one square inch (645 mm2) per 2,000 Btu (.59 kW) per hour of the total input rating of all equipment in the enclosure. If the equipment room is located against an outside wall and the air openings communicate directly with the outdoors, each open- ing shall have a free area of at least one square inch (645 mm2) per 4,000 Btu (1.17 kW) per hour of the total input rating of all other equipment in the enclosure.

FIGURE 4

FIGURE 5

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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.
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