UNIT OPERATION

 

 

 

 

 

(typical)

 

 

Combustion CO2

 

 

 

 

2

 

 

SUPPLY

 

 

 

 

 

 

 

 

 

 

AIR

 

Gas Manifold Pressure

7

Thermostat

 

Temperatures

 

 

 

 

 

 

 

6

 

 

 

 

 

 

1

 

 

upflow furnace shown

 

 

 

 

 

4

 

 

 

 

 

Filter

Blower Motor Amps

 

 

 

 

 

 

 

 

 

Duct Static

 

3

 

 

 

 

 

 

 

 

RETURN

5

 

 

 

 

AIR

 

 

 

 

 

 

HEATING MODE

 

COOLING MODE

 

 

 

1

GAS MANIFOLD PRESSURE .C._____

3

INDOOR BLOWER AMPS______

 

 

 

 

4

TEMPERATURE DROP

2 COMBUSTION SAMPLE CO2%______CO PPM_______

Return Duct Temperature _________

 

 

 

 

 

3 INDOOR BLOWER AMPS______

 

Supply Duct Temperature _ _______

 

Temperature Drop = _________

 

 

 

 

 

4

TEMPERATURE RISE

 

5

TOTAL EXTERNAL STATIC (dry coil)

 

Supply Duct Temperature ________

 

Supply External Static _______

 

 

 

 

Return Duct Temperature _ _____

 

Return External Static + ______

 

Temperature Rise = ________

 

Total External Static = _______

 

 

 

5 TOTAL EXTERNAL STATIC (dry coil)

6

DRAIN LINE

 

 

 

Supply External Static _______

 

Leak Free

 

 

 

 

Return External Static + ______

 

 

 

Total External Static = _______

7

THERMOSTAT

 

 

 

 

 

 

 

 

Adjusted and Programmed

 

 

 

 

 

Operation Explained to Owner

 

Contractor’s: Name_________________________Telephone_____________Checklist Completed____________________

 

Job Address_____−________________________________Technician’s Name___________________________________

Page 32

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Image 32
Lennox International Inc EL280DF Unit Operation, Cooling Mode, Temperature Rise, Drain Line, Thermostat

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.