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Lennox ELO183UF Series - User Manual

Lennox ELO183UF Series
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506901−01
*P506901-01*
04/12
*2P0412*
Page 1
E 2012 Lennox Industries Inc.
Dallas, Texas, USA
RETAIN THESE INSTRUCTIONS
FOR FUTURE REFERENCE
IMPORTANT
This unit must be serviced annually by a licensed
professional technician, or equivalent.
WARNING
Improper installation, adjustment, alteration, ser-
vice, or maintenance can cause injury or property
damage. Refer to this manual. For assistance or
additional information, consult a licensed profes-
sional installer, or equivalent, or service agency.
WARNING
Do not store or use gasoline or other flammable va-
pors and liquids in the vicinity of this or any other ap-
pliance.
CAUTION
When venting this appliance, keep vent terminal free
of snow, ice and debris.
CAUTION
As with any mechanical equipment, personal injury
can result from contact with sharp sheet metal
edges. Be careful when you handle this equipment.
INSTALLATION
INSTRUCTIONS
ELO183UF SERIES UNITS
OIL UNITS
506901−01
04/2012
Table of Contents
General 1. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Shipping & Packing 1. . . . . . . . . . . . . . . . . . . . . . . . . .
ELO183UF Unit Dimensions 2. . . . . . . . . . . . . . . . . . . . .
ELO183UF Start−Up & Performance Check List 2. .
ELO183UF Unit Parts Arrangement 3. . . . . . . . . . . . . . . .
ELO183UF Oil
Burner Parts Arrangement 3. . . . . . . . .
Requirements 4. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Combustion Air 5. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Locate & Level the Unit 6. . . . . . . . . . . . . . . . . . . . . . .
Adjustments 7. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Indoor Coil Placement 8. . . . . . . . . . . . . . . . . . . . . . . .
Venting 8. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Flue Connections 9. . . . . . . . . . . . . . . . . . . . . . . . . . . .
Supply & Return Air Plenums 10. . . . . . . . . . . . . . . . .
Oil Supply Line Sizing 10. . . . . . . . . . . . . . . . . . . . . . . .
Oil Supply Line & Filter Connections 12. . . . . . . . . . .
Leak Check 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Electrical Wiring 12. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Unit Start-Up & Adjustments 14. . . . . . . . . . . . . . . . . .
Service 16. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Troubleshooting 18. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
General
These instructions are intended as a general guide and do
not supersede local codes in any way. Only licensed pro-
fessional technicians, or equivalent, can install and service
the Lennox Elite
®
Series ELO183UF oil furnaces. In Cana-
da, refer to CSA B139 for recommended installation proce-
dures. Consult authorities who have jurisdiction before
installation.
CAUTION
Never burn garbage or paper in the heating system.
Never leave papers near or around the unit.
Shipping & Packing List
1 − Assembled oil furnace
1 − Barometric draft control
1 − Oil nozzle (used with ELO183UF−86, −114 and −150
only)
Check the components for shipping damage. If you find any
damage, immediately contact the last carrier.
Litho U.S.A.

Table of Contents

Questions and Answers

  • K
    Kathy ChapmanSep 15, 2025
    How to fix fouled or shorted electrodes in Lennox ELO183UF Furnace?
    • E
      erikagoodwinSep 16, 2025
      If the electrodes in your Lennox Furnace are fouled or shorted, clean or replace them.
  • W
    wendygouldAug 25, 2025
    How to fix plugged oil line filter in Lennox ELO183UF?
    • S
      ssalinasAug 25, 2025
      If the oil line filter in your Lennox Furnace is plugged, replace the filter cartridges.
  • R
    Rachel HerreraAug 25, 2025
    What to do if there is no oil in tank of Lennox ELO183UF Furnace?
    • J
      johnsonmarkAug 26, 2025
      If there is no oil in the tank of your Lennox Furnace, fill the tank.
  • W
    Warren ValdezAug 26, 2025
    What to do if Lennox ELO183UF Furnace pump loses prime due to air leak in supply line?
    • R
      Rita HarrisonAug 27, 2025
      If the Lennox Furnace pump loses prime due to an air leak in the supply line, check the supply line for loose connections and tighten the fittings.
  • G
    Gregory CarterSep 16, 2025
    How to fix Partially plugged nozzle or nozzle strainer in Lennox ELO183UF Furnace?
    • N
      Nathaniel WellsSep 16, 2025
      If the nozzle or nozzle strainer is partially plugged in your Lennox Furnace, replace the nozzle.
  • F
    Felicia DavisSep 23, 2025
    How to fix High smoke reading more than a trace in Lennox ELO183UF Furnace?
    • P
      Paula ColonSep 23, 2025
      If there is a high smoke reading (more than a trace) in your Lennox Furnace, clean the heat exchanger.
  • N
    Natalie FordSep 8, 2025
    What to do if Burner motor overload tripped in Lennox Furnace?
    • D
      Devin ScottSep 8, 2025
      If the burner motor overload has tripped on your Lennox Furnace, push the reset button on the pump motor.
  • W
    William MccormickSep 9, 2025
    What to do if Primary control tripped on safety in Lennox Furnace?
    • O
      oriosSep 9, 2025
      If the primary control tripped on safety in your Lennox Furnace, reset the primary control.
  • K
    Kayla FisherSep 2, 2025
    How to fix primary control circuit failed in Lennox Furnace?
    • C
      Chelsea NguyenSep 2, 2025
      If the primary control circuit has failed in your Lennox Furnace, replace the primary control.
  • P
    Phillip FrancisAug 31, 2025
    What to do if flame detector leads are shorted in Lennox Furnace?
    • T
      tscottSep 1, 2025
      If the flame detector leads are shorted in your Lennox Furnace, separate the leads.

Summary

Unit Overview and Setup Checklist

ELO183 UF Unit Dimensions and Specifications

Provides detailed measurements, diagrams, and key specifications for the unit.

ELO183 UF Start-Up & Performance Checklist

A crucial checklist for ensuring proper initial operation and performance verification.

Installation Requirements and Clearances

Installation Requirements

Outlines essential conditions, codes, and standards for installing the furnace.

Installation Clearances

Specifies minimum distances required around the unit for safety and service access.

Combustion Air and Ventilation

Combustion Air Requirements

Details specific air volume needs for combustion based on installation location and type.

Unit Location and Airflow

Locate & Level the Unit

Instructions for positioning and ensuring the unit is level for proper function.

Burner Adjustment Procedures

Burner Adjustments and Nozzle Setting

Procedures for fine-tuning the burner and setting the oil nozzle for optimal performance.

Venting and Coil Placement

Venting Requirements

Critical instructions for safely venting combustion byproducts.

Indoor Coil Placement

Guidance on positioning the indoor coil in heating/cooling applications.

Flue and Vent Connections

Flue Connections and Venting

Procedures and safety notes for connecting the furnace to the venting system.

Oil Supply Piping and Installation

Oil Supply Line Sizing and Installation

Guidelines for selecting tubing size and installing the oil supply line.

Oil System and Electrical Setup

Oil Supply Line & Filter Connections

Steps for connecting the oil supply line and installing filters.

Electrical Wiring and Safety

Instructions for proper electrical connections and safety precautions.

Unit Wiring Diagram

Typical ELO183 UF Wiring Diagram

A schematic illustrating the electrical connections for the unit.

Unit Start-Up and Burner Operation

Unit Start-Up & Adjustments

Steps for initiating operation and making initial adjustments.

Burner Start-Up Procedure

Detailed instructions for safely starting the oil burner assembly.

Burner and Fan Performance Tuning

Burner Adjustment and Testing

Essential procedures for tuning the burner for efficiency and preventing sooting.

Service and Component Cleaning

Service and Filter Replacement

General guidance for servicing, including filter checks and replacement.

Heat Exchanger Cleaning

Procedures for cleaning the internal heat exchanger components.

Primary Burner Control System

Beckett Genisys Primary Burner Control

Details on the Beckett Genisys™ 7505B primary burner control, its buttons, and lights.

Operational Sequences and Troubleshooting Introduction

Heating Sequence - Actions & Responses

Describes the furnace's operational steps during a heating call.

Troubleshooting Overview

General introduction to diagnosing and resolving furnace operational issues.

Troubleshooting Fan Operation

Fan Operating Sequence Troubleshooting

Lists system responses to various fan operating conditions and potential issues.

Troubleshooting Burner Start Issues

Burner Fails to Start Troubleshooting

Guides on diagnosing why the burner will not initiate operation.

Troubleshooting Flame Establishment

Burner Starts, No Flame Established Troubleshooting

Steps to diagnose issues when the burner starts but fails to establish a flame.

Troubleshooting Safety Lockouts and Flame Loss

Burner Lockout on Safety Troubleshooting

Diagnosing reasons for burner lockouts due to safety controls.

Flame Loss Lockout Troubleshooting

Steps to resolve flame loss leading to safety lockouts.

Troubleshooting Cycling and Continuous Run Issues

Burner Short Cycling Troubleshooting

Diagnosing causes for the burner cycling on and off too frequently.

Burner Continuous Run Troubleshooting

Steps to resolve issues where the burner runs constantly without reaching setpoint.

Troubleshooting Insufficient Heat Output

Burner Runs Continuously (Too Little Heat) Troubleshooting

Diagnosing causes for continuous burner operation resulting in insufficient heat.

Lennox ELO183UF Series Specifications

General IconGeneral
BrandLennox
ModelELO183UF Series
CategoryFurnace
LanguageEnglish

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