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Lennox EL180UH060NE36A User Manual

Lennox EL180UH060NE36A
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Page 1
INSTALLATION
INSTRUCTIONS
EL180UHNE
507647-04
08/2021
Supersedes 507646-03
THIS MANUAL MUST BE LEFT WITH THE
HOMEOWNER FOR FUTURE REFERENCE
This is a safety alert symbol and should never be
ignored. When you see this symbol on labels or in man-
uals, be alert to the potential for personal injury or death.
IMPORTANT
DO NOT use the heat exchanger tubes to lift, drag or
pull the furnace to its installation location.
Doing so may damage or bend the tubes causing noise
and or unsafe operation.
HeatExchanger Tubes
© 2021 Lennox Industries Inc.
Dallas, Texas USA
ELITE
®
SERIES GAS FURNACE
UPFLOW / HORIZONTAL AIR DISCHARGE
Contents
Unit Dimensions .............................................................2
EL180UHN Gas Furnace................................................3
Shipping and Packing List ..............................................3
Safety .............................................................................3
Use of Furnace as a Construction Heaterl .....................4
General ...........................................................................5
Combustion, Dilution, Ventilation Air...............................5
Setting Equipment ..........................................................8
Filters ............................................................................ 11
Duct System ................................................................. 11
Venting..........................................................................14
Gas Piping ....................................................................18
Electrical .......................................................................20
Integrated Control .........................................................24
Unit Start-Up .................................................................25
Gas Pressure Measurement.........................................26
Proper Combustion.......................................................26
High Altitude .................................................................26
Other Unit Adjustments.................................................27
Service..........................................................................28
Start-Up Checklist.........................................................30
Blower Data ..................................................................33

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Lennox EL180UH060NE36A Specifications

General IconGeneral
ModelEL180UH060NE36A
TypeGas Furnace
Heating Capacity60, 000 BTU
Efficiency Rating80% AFUE
Fuel TypeNatural Gas
StagesSingle-Stage
Ignition TypeHot Surface Ignition
Heat Exchanger MaterialAluminized Steel
Weight120 lbs
Blower Motor TypeECM
Filter TypeDisposable

Summary

Safety Information

General Installation Guidelines

Combustion, Dilution & Ventilation Air

Explains the critical need for adequate air for combustion and ventilation in modern tight homes.

Confined Space Air Requirements

Setting Equipment

Return Air - Upflow Applications

Filters & Duct System

Venting

Venting Requirements

Covers general venting rules, classification, and prohibits horizontal venting for this model.

Venting Using a Masonry Chimney

Details specific requirements for venting the furnace into a masonry chimney.

Masonry Chimney Venting Details

General Venting Requirements

Gas Piping & Supply

Gas Piping Requirements

Details rules for gas pipe sizing, routing, slope, support, and drip legs.

Gas Supply Connection

Explains gas supply connection procedures, torque specifications, and pipe size recommendations.

Leak Check & Electrical Precautions

Gas Leak Check Procedure

Instructions for checking all gas piping connections for leaks using appropriate solutions.

Electrical & Generator Use

Thermostat & Indoor Blower Speeds

Integrated Control

Integrated Control Diagnostics

Details diagnostic codes and status indicators provided by the integrated control unit.

Unit Start-Up

Unit Start-Up Procedure

Step-by-step instructions for safely starting up the furnace, including gas valve operation.

Failure To Operate Troubleshooting

Common checks and potential causes if the furnace fails to operate correctly.

Gas Pressure Adjustment & Proper Combustion

Gas Pressure Adjustment

Guides on checking and adjusting gas manifold pressure for optimal furnace performance.

Proper Combustion Analysis

Procedures for checking combustion sample (CO2%) and comparing to specified values.

High Altitude & Other Unit Adjustments

Service & Maintenance

Annual Furnace Maintenance

Checklist for annual maintenance tasks to ensure efficient and safe furnace operation.

General Service Procedures

Guidelines for performing service, including electrical safety and system checks.

Start-Up & Performance Check List

Unit Operation Checks

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