Lennox International Inc EL180UHE Repair Parts List, ML180UHE Burner Assembly & Removal

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2 - Label the wires from gas valve, rollout switches, prima­ ry limit switch and make-up box then disconnect them.

3 - Disconnect gas supply piping. Remove the screw se­ curing the burner box cover and remove cover. Re­ move the four screws securing the burner manifold as­ sembly to the vestibule panel and remove the assembly from the unit.

4 - To clean burners, run a vacuum cleaner with a soft brush

attachment over the face of burners. Visually inspect in­ side the burners and crossovers for any blockage caused by foreign matter. Remove any blockage. Figure 33 shows burner detail.

5 - Reinstall burner box, manifold assembly and burner box cover.

6 - Re-install gas supply and turn on electrical pwer to fur­ nace.

 

ML180UHE BURNER ASSEMBLY & REMOVAL

Rollout Switches

Retention Rings

(-090, -110 -135 units)

 

Rollout Switches

Ignitor

 

(-045 and -070 units)

 

 

 

 

Cross Over

Sensor

 

 

 

Manifold And Gas Valve

 

FIGURE 33

Repair Parts List

The following repair parts are available through independent Lennox dealers. When ordering parts, include the complete furnace model number listed on the CSA International nameplate -- Example: EL180UH045E36A-01. All service must be

performed by a licensed professional installer (or equivalent), service agency, or gas supplier.

Cabinet Parts

Upper access panel

Blower panel

Top cap

Control Panel Parts

Transformer

Integrated control

Door interlock switch

Circuit breaker

Blower Parts

Blower wheel

Blower housing

Motor

Motor mounting frame

Motor power choke

Blower housing cutoff plate

Heating Parts

Flame sensor

Heat exchanger assembly Gas manifold Combustion air inducer Gas valve

Main burner cluster Main burner orifices Pressure switch Ignitor

Primary limit control Flame rollout switch (s) Secondary limit

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Contents Installation Instructions EL180UHE Table of ContentsUnit Dimensions inches mm OpeningSafety Information EL180UHE Gas FurnaceShipping and Packing List Installed in Combination with a Cooling Coil Use of Furnace as Construction HeaterGeneral Combustion, Dilution & Ventilation Air Unconfined SpaceConfined Space Air from InsideAir from Outside Equipment in Confined Space Setting Equipment Upflow ApplicationsReturn Air -- Upflow Applications With transition and filterSingle Side Return Air Removing the Bottom Panel Horizontal ApplicationsReturn Air -- Horizontal Applications Duct System Horizontal Application Unit Installed on PlatformFilters Supply Air PlenumMounting Screws Location VentingReturn Air Plenum Upflow PositionRight Side Vent Discharge Horizontal Left PositionLeft Side Vent Discharge Side Vent DischargeVenting Using a Masonry Chimney Horizontal Right PositionSide Vent Discharge no modifications necessary Common Venting Using Metal-Lined Masonry Chimney Vent Connection Upflow and Horizontal PositionConnector Diameter Maximum Horizontal Connector Length feet mGeneral Venting Requirements Page MIN FAN + FAN FAN + NAT Gas Piping Removal of the Furnace from Common VentGas Supply Gas Pipe Capacity ft3/hr m3/hr 103.92 97.69 92.31Electrical Horizontal Applications Possible Gas Piping ConfigurationsPrecautions and Procedures Leak CheckGenerator Use Voltage Requirements Interior MAKE-UP BOX InstallationAccessory Terminals ThermostatEL180UHE Schematic Wiring Diagram Integrated Control Diagnostic Codes / Status of FurnaceIntegrated Control Automatic Hot Surface Ignition SystemFor Your Safety Read Before Lighting Unit Start-UpProper Combustion Gas Pressure AdjustmentGAS Meter Clocking Chart High AltitudeOther Unit Adjustments Service Control Panel Parts Repair Parts ListML180UHE Burner Assembly & Removal Blower PartsStart-Up & Performance Check List Temperature Rise Cooling ModeTemperature Drop Unit Operation

EL180UHE specifications

Lennox International Inc. has long been a leader in providing innovative heating and cooling solutions, and the EL180UHE represents a notable advancement in their line of high-efficiency gas furnaces. Designed to meet the demands of residential heating, this unit combines advanced technology with user-friendly operation and significant energy savings.

One of the standout features of the EL180UHE is its efficiency rating, with an Annual Fuel Utilization Efficiency (AFUE) of up to 80%. This high efficiency not only helps homeowners save on energy bills but also reduces their carbon footprint. The furnace is equipped with a reliable, multi-speed blower motor, which enhances comfort levels by maintaining consistent air circulation throughout the home.

The EL180UHE employs advanced combustion technologies, such as Lennox's low-NOx burner, which minimizes nitrogen oxide emissions, contributing to a cleaner environment. The unit is also designed with a sealed combustion system that draws air directly from the outdoors rather than from inside the home, leading to improved indoor air quality and increased safety.

Another significant characteristic of the EL180UHE is its whisper-quiet operation. This is achieved through well-engineered insulation and a design that minimizes noise levels, allowing for a comfortable living environment without disruptive sounds. Many homeowners appreciate the quiet performance, especially during the night or in spaces where noise is a concern.

The installation process is straightforward, supported by Lennox's user-friendly design. The EL180UHE is compatible with various home configurations and can easily integrate with existing HVAC systems. Additionally, it has a compact footprint, making it suitable for homes with space constraints.

Further enhancing its appeal, this gas furnace features robust warranty options, reflecting Lennox's commitment to quality and customer satisfaction. Homeowners can rest assured that they are investing in a durable product that has been built to last.

In conclusion, Lennox International Inc.'s EL180UHE gas furnace exemplifies the company's dedication to innovation, efficiency, and reliability in home heating solutions. With its high AFUE rating, advanced combustion technology, quiet operation, and user-friendly design, the EL180UHE is an excellent choice for homeowners looking to enhance their comfort while minimizing energy costs.
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