Lennox International Inc EL180UHE Electrical, Leak Check, Electrostatic Discharge ESD

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Horizontal Applications

Possible Gas Piping Configurations

 

MANUAL

 

MAIN SHUT-OFF

 

VALVE

MANUAL

 

MAIN SHUT-OFF

Horizontal Application

VALVE

Left-Side Air Discharge

 

 

GROUND

 

JOINT

 

UNION

GROUND

 

JOINT

DRIP LEG

UNION

 

DRIP LEG

 

 

 

MANUAL

 

 

MAIN SHUT-OFF

 

 

VALVE

 

 

GROUND

 

 

JOINT

 

FIELD

UNION

 

 

 

PROVIDED

 

Horizontal Application

AND INSTALLED

 

 

 

Right-Side Air Discharge

NOTE - BLACK IRON PIPE ONLY TO BE ROUTED INSIDE OF CABINET

DRIP LEG

FIGURE 26

Leak Check

After gas piping is completed, carefully check all piping connections (factory- and field-installed) for gas leaks. Use a leak detecting solution or other preferred means.

NOTE - If emergency shutoff is necessary, shut off the main manual gas valve and disconnect the main power to the furnace. The installer should properly label these devices.

MANUAL MAIN

SHUT-OFF VALVE WILL NOT HOLD NORMAL TEST PRESSURE

1/8 NPT PLUG

CAP

ISOLATE

GAS VALVE

FURNACE

CAUTION

FIGURE 27

Electrical

Some soaps used for leak detection are corrosive to certain metals. Carefully rinse piping thoroughly af­ ter leak test has been completed. Do not use matches, candles, flame or other sources of ignition to check for gas leaks.

The furnace must be isolated by closing its individual manual shut‐off valve and disconnecting from from the gas supply system during any pressure testing of the gas sup­ ply system at pressures greater than 1/2 psig (3.48 kPa, 14 inches w.c.).

IMPORTANT

When testing pressure of gas lines, gas valve must be disconnected and isolated. See figure 27. Gas valves can be damaged if subjected to pressures greater than 1/2 psig (3.48 kPa, 14 inches w.c.).

ELECTROSTATIC DISCHARGE (ESD)

Precautions and Procedures

CAUTION

Electrostatic discharge can affect elec­ tronic components. Take precautions to neutralize electrostatic charge by touching your hand and tools to metal prior to handling the control.

The unit is equipped with a field make-up box on the left hand side of the cabinet. The make-up box may be moved to the right side of the furnace to facilitate installation. If the make-up box is moved to the right side, clip the wire ties that bundle the wires together. The excess wire must be pulled into the blower compartment. Secure the excess wire to the existing harness to protect it from damage.

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Contents Installation Instructions EL180UHE Table of ContentsUnit Dimensions inches mm OpeningEL180UHE Gas Furnace Safety InformationShipping and Packing List Use of Furnace as Construction Heater Installed in Combination with a Cooling CoilGeneral Combustion, Dilution & Ventilation Air Unconfined SpaceAir from Inside Confined SpaceAir from Outside Equipment in Confined Space Setting Equipment Upflow ApplicationsWith transition and filter Return Air -- Upflow ApplicationsSingle Side Return Air Horizontal Applications Removing the Bottom PanelReturn 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 DischargeHorizontal Right Position Venting Using a Masonry ChimneySide Vent Discharge no modifications necessary Common Venting Using Metal-Lined Masonry Chimney Vent Connection Upflow and Horizontal PositionConnector Length feet m Connector Diameter Maximum HorizontalGeneral Venting Requirements Page MIN FAN + FAN FAN + NAT Removal of the Furnace from Common Vent Gas PipingGas 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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