Lennox International Inc EL280UH Unit Dimensions − inches mm, Supply AIR Opening

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Unit Dimensions − inches (mm)

1NOTE − 60C and 60D size units that require air volumes over 1800 cfm (850 L/s) must have one of the following:

1.Single side return air with transition, to accommodate 20 x 25 x 1 in. (508 x 635 x 25 mm) cleanable air filter. Required to maintain proper air velocity.

2.Single side return air with optional Return Air Base

3.Bottom return air.

4.Return air from both sides.

5.Bottom and one side return air.

See Blower PerformanceTables for additional information.

D

FLUE OUTLET (Top)

3−1/8 (79)

SUPPLY AIR

OPENING

2Flue outlet may be horizontal but furnace must be vented vertically

3Optional External Side Return Air Filter Kit is not for use with the optional Return Air Base.

3 OPTIONAL

 

 

 

 

23−3/4

 

 

 

 

EXTERNAL

 

 

 

 

 

 

 

 

 

(603)

SIDE RETURN

 

 

 

 

 

 

25

AIR FILTER KIT

 

(Either Side)

 

 

 

(635)

 

3/4

(19)

 

 

 

TOP VIEW

 

 

 

1−1/2 (38)

27−3/4

 

A

 

Front Panel

(705)

 

 

 

3−1/4 (83)

 

B

9/16 (14)

3 (76) Right

19−7/16

 

 

7 (178) Left

(494)

 

 

 

 

2 FLUE OUTLET

 

 

 

9−1/8 (232) Right

(Either Side)

 

 

3 OPTIONAL

GAS PIPING INLET

 

 

8−5/8 (219) Left

 

 

EXTERNAL

 

(Either Side)

 

 

SIDE RETURN

 

 

 

 

AIR FILTER KIT

 

 

 

 

(Either Side)

5−3/8 (137) Right

 

 

 

33

ELECTRICAL INLET

 

 

2−3/4 (70) Left

 

 

(838)

(Either Side)

 

 

 

 

23

 

 

14−3/4

 

(584)

 

 

(375)

 

1 Side Return

14

 

 

 

 

16

 

Air Opening

(356)

 

(406)

 

(Either Side)

 

AIR FLOW

 

 

1−15/16 (49)

 

 

 

 

5/8

 

 

 

C

3/4 (16)

3−1/4

23−1/2

 

(19)

(83)

(597)

 

 

 

1 Bottom Return

 

 

1 Bottom Return

 

Air Opening

 

 

Air Opening

 

FRONT VIEW

 

 

SIDE VIEW

 

9/16

(14)

1−1/2

(38)

EL280UH Model No.

 

A

 

B

 

C

 

D

in.

 

mm

in.

 

mm

in.

 

mm

in.

 

mm

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

070P24A

14−1/2

 

368

13−3/8

 

340

13

 

330

4−3/4

 

121

070(X)P36A

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

090P36B

17−1/2

 

446

16−3/8

 

416

16

 

406

6−1/4

 

159

090(X)P48B

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

110P48C

21

 

533

19−7/8

 

504

19−1/2

 

495

8

 

203

110(X)P60C

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

135P60D

24−1/2

 

622

23−3/8

 

546

23

 

584

9−3/4

 

248

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Contents Installation Instructions EL280UH Table of ContentsUnit Dimensions − inches mm Supply AIR OpeningParts Arrangement Shipping and Packing List Safety InformationEL280UH Gas Furnace Use of Furnace as Construction Heater GeneralCombustion, Dilution & Ventilation Air Equipment in Confined Space ALL AIR from Inside Equipment in Confined Space Setting Equipment Return Air Bracket Filters Duct SystemVenting Upflow PositionHorizontal Left Position Horizontal Right 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 Gas Piping Leum gasesHorizontal Applications Possible Gas Piping Configurations Electrostatic Discharge ESD Interior MAKE−UP BOX InstallationElectrical Page Field Wiring Applications OFF EL280UH Schematic Wiring Diagram Typical EL280UH Field Wiring Diagram TWO−STAGE Integrated ControlIntegrated Control For Your Safety Read Before Lighting Unit Start−UpHigh Altitude Gas Pressure AdjustmentProper Combustion Manifold Pressure Settings at all Altitudes Other Unit Adjustments Heat FAN-OFF Time in SecondsHeating Sequence of Operation Blower Data Pressure Bottom and One Side Service Electrical SHOCK, Fire Or Explosion HazardEL280UH BURNER, Combustion AIR Inducer Assembly Heat Exchanger RemovalPage Planned Service Repair Parts ListLED Integrated Control Diagnostic CodesFlash Code Status / Error Description Troubleshooting Heating Sequence of Operation On NextHeating Sequence of Operation U1.40 microamps Or Heat Demand is SATISFIED. a Five Troubleshooting Cooling Sequence of Operation Cooling Sequence of OperationTroubleshooting Continuous Fan Sequence of Operation Continuous LOW Speed FAN Sequence of OperationStart−Up & Performance Check List Unit Operation Cooling ModeTemperature Rise Drain Line
Related manuals
Manual 7 pages 50.25 Kb

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.
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