Lennox Manuals & User Guides

LENNOX Single Zone High Static Concealed Ducted Indoor Units Instruction Manual

December 29, 2025

MDDD DUCTED | Single-Zone High Static | Concealed Ducted Indoor Units | R-32 | 60 Hz RESIDENTIAL / COMMERCIAL PRODUCT SPECIFICATIONS (EHB) Single Zone High Static Concealed Ducted Indoor Units MDDD High Static Ducted Unit (Shown with Optional Programmable Wired…

Brand: Lennox

LENNOX EL297DFV070 Elite Gas Furnaces Instruction Manual

December 28, 2025

LENNOX EL297DFV070 Elite Gas Furnaces MODEL NUMBER IDENTIFICATION FEATURE HIGHLIGHTS Lennox Duralok Plus™ Heat Exchanger Secondary Heat Exchanger Inshot Burners Two-Stage Gas Control Valve Two-Speed Combustion Air Inducer SureLight® Integrated Furnace Control Variable Speed Direct Drive Blower Insulated Cabinet Safety…

Brand: Lennox

LENNOX 24J59 High Performance Economizer Instruction Manual

December 25, 2025

DOWNFLOW ECONOMIZERS 508843-01 24J59 HIGH PERFORMANCE ECONOMIZER 24J59 High Performance Economizer INSTALLATION INSTRUCTIONS FOR HIGH PERFORMANCE ECONOMIZER USED WITH ZC, ZG, ZH 036, 048, 060, 074 UNITS Shipping and Packing List Package 1 of 1 contains: 1 - Economizer damper…

Brand: Lennox

LENNOX ML296DFV090X Small Split Gas Furnace Instruction Manual

December 17, 2025

LENNOX ML296DFV090X Small Split Gas Furnace Specifications Model: ML296DFV(K) Heating Type: Gas Furnace Configuration: Downflow Heating Stages: Two-Stage Blower: Variable Speed Refrigerant Detection: Yes AFUE: 96% Input Range: 44,000 to 88,000 Btuh Nominal Cooling Capacity: 3 to 5 Tons Product…

Brand: Lennox

LENNOX SLP99DFV070XV Dave Signature Collection Gas Furnace Series User Guide

December 16, 2025

LENNOX SLP99DFV070XV Dave Signature Collection Gas Furnace Series Specifications AFUE: 97.5% Input: 66,000 to 110,000 Btuh Nominal Add-on Cooling: 2 to 5 Tons Blower: Variable Speed Frequency: 60Hz Product Usage Instructions Installation Ensure proper ventilation and clearances according to the installation…

Brand: Lennox

LENNOX MDD036M6-1P R-32 Multi-Zone High Static Concealed Ducted Indoor Units User Manual

December 15, 2025

LENNOX MDD036M6-1P R-32 Multi-Zone High Static Concealed Ducted Indoor Units MODEL NUMBER IDENTIFICATION APPROVALS AND WARRANTY APPROVALS Indoor units and components ETL and CEC bonded for grounding to meet safety standards for servicing WARRANTY All covered components Limited five years…

Brand: Lennox

LENNOX R454B Humiditrol Enhanced Dehumidification Accessory EDA Units Installation Guide

December 10, 2025

LENNOX R454B Humiditrol Enhanced Dehumidification Accessory EDA Units Installation Guide   NOTE - EDA is not applicable to variable-capacity outdoor units! WARNING Improper installation, adjustment, alteration, service or maintenance can cause property damage, personal injury, or loss of life. Installation…

Brand: Lennox

LENNOX Mini Split System Instructions

December 10, 2025

LENNOX Mini Split System Specifications Brand: Lennox Equipment Type: Mini-Split System Warranty Coverage: Varies based on model and installation date Product Usage Instructions Extended Limited Warranty Information: Congratulations on your purchase of a Lennox mini-split system. Please ensure you register…

Brand: Lennox

LENNOX SGH Series Gas and Cooling Packaged Units Instruction Manual

December 9, 2025

LENNOX SGH Series Gas and Cooling Packaged Units Product Specifications Model: SGH120 Cooling Capacity: 10 TON Refrigerant: R-454B Mobile Service App: Included Gas Type: Natural Gas Refrigerant Type: A2L Product Usage Instructions Installation Instructions Before starting the installation process, ensure…

Brand: Lennox

LENNOX Mini Split Plus Wall Mount Mini Split Air Handler User Guide

December 7, 2025

MINI-SPLIT + LENNOX HOME APP SET-UP Mini Split Plus Wall Mount Mini Split Air Handler Sign-in or up for Samsung account via Samsung SmartThings CLICK HERE TO SIGN-IN OR SIGN-UP Connect your Samsung Smart AC to Samsung SmartThings CLICK HERE…

Brand: Lennox

Lennox ML180DFE Merit Series Gas Furnace Specifications and Features

Technical Specification • December 31, 2025

Detailed specifications, features, installation clearances, dimensions, and blower data for the Lennox ML180DFE Merit Series residential gas furnace. Includes information on heating performance, electrical data, and optional accessories.

Brand: Lennox

Lennox Integrated Furnace Control (IFC) Addendum - Wiring and Diagnostics for Ultra Lox Nox Furnaces

Installation Instructions Addendum • December 31, 2025

Addendum to installation instructions for Lennox Ultra Lox Nox Furnaces, detailing the Integrated Furnace Control (IFC) wiring, configuration, optional accessories, and diagnostic codes for HVAC systems.

Brand: Lennox

Lennox LRP13GEK Series Residential Packaged Unit Installation and Maintenance Manual

Installation and Maintenance Manual • December 30, 2025

Comprehensive guide for the installation, operation, and maintenance of Lennox LRP13GEK Series residential packaged gas/electric units. Covers safety, procedures, and technical specifications.

Brand: Lennox

Lennox PureAir S Air Purification System Installation Instructions

Installation Instructions • December 30, 2025

Detailed installation instructions for the Lennox PureAir S Air Purification System, covering models PCO3S-14-16, PCO3S-16-16, and PCO3S-20-16. Includes parts identification, dimensions, specifications, installation steps, wiring, control functions, and troubleshooting.

Brand: Lennox

Lennox Economizer Installation Instructions for KG/KC/KH 092-150 B Box Units

Installation Guide • December 28, 2025

Comprehensive installation instructions for Lennox KG/KC/KH 092-150 B Box Unit economizers, covering both standard and high-performance models. Includes parts lists, safety warnings, application details, wiring diagrams, sensor configurations, setup procedures, and sequence of operation for optimal HVAC system performance.

Brand: Lennox

Manual de Usuario Aire Acondicionado Tipo Cassette LENNOX | Guía de Instalación y Mantenimiento

User Manual • December 27, 2025

Este manual de usuario de LENNOX proporciona instrucciones detalladas para la instalación, operación, mantenimiento y solución de problemas de los aires acondicionados tipo Cassette Serie U-Match Inverter.

Brand: LENNOX

Lennox Thermostat Adapter VSTAT09P-1 User Manual

user manual • December 27, 2025

User manual for the Lennox Thermostat Adapter VSTAT09P-1, providing installation instructions, configuration options, wiring examples, and troubleshooting tips for HVAC systems.

Brand: Lennox

Lennox MDDD Single-Zone High Static Concealed Ducted Indoor Units Product Specifications

Product Specification Sheet • December 27, 2025

Detailed product specifications for Lennox MDDD Single-Zone High Static Concealed Ducted Indoor Units, including model identification, features, optional accessories, dimensions, sound data, and blower data.

Brand: Lennox

Lennox EL280UH(X)EK Elite Series Gas Furnace Installation Instructions

Installation Instructions • December 27, 2025

Comprehensive installation instructions for the Lennox EL280UH(X)EK Elite Series Gas Furnace. This guide covers unit dimensions, safety protocols, installation for upflow and horizontal configurations, venting, gas piping, electrical, and start-up procedures.

Brand: Lennox

Lennox LGT Series Commercial HVAC Units: Service Literature and Specifications

Service Manual • December 26, 2025

Comprehensive service literature and specifications for Lennox LGT Series commercial rooftop HVAC units, covering models LGT092H through LGT150H. Includes installation, operation, maintenance, electrical data, and parts information.

Brand: Lennox

Lennox MWLD Series Cold Climate Mini-Split Heat Pump Product Specifications

Technical Specification • December 26, 2025

Detailed product specifications for the Lennox MWLD series cold climate, high-efficiency, single-zone wall-mounted mini-split heat pump outdoor units. Includes features, applications, technical data, dimensions, and performance charts.

Brand: Lennox

Lennox SureLight Ignition Control Replacement Kit Installation Guide

Installation Guide • December 21, 2025

Detailed installation instructions and wiring diagrams for replacing a Lennox SureLight ignition control board in gas furnaces. Includes safety precautions, parts list, cross-reference tables, and diagnostic codes.

Brand: Lennox

Lennox 95M57-100438-03 25 Amp 3-Pole Definite Purpose Contactor User Manual

95M57-100438-03 • December 27, 2025 • Amazon

Comprehensive user manual for the Lennox 95M57-100438-03 25 Amp 3-Pole Definite Purpose Contactor, providing installation, operation, maintenance, and specification details.

Brand: Lennox

Lennox Smart Room Sensor 22V25 Wireless Sensor Instruction Manual

22V25 • December 14, 2025 • Amazon

Comprehensive instruction manual for the Lennox Smart Room Sensor 22V25, covering setup, operation, maintenance, troubleshooting, and specifications for optimal climate control with your S40 thermostat.

Brand: Lennox

Lennox iComfort S30/E30 Smart Programmable Thermostat Replacement Screen (Model 19V30) User Manual

19V30 • December 10, 2025 • Amazon

Comprehensive user manual for the Lennox 19V30 S30 Smart Thermostat Replacement Screen, detailing installation, operation, features, and maintenance for optimal home climate control.

Brand: Lennox

Lennox OEM Replacement Furnace Control Board 103085-02 Instruction Manual

103085-02 • December 5, 2025 • Amazon

Instruction manual for the Lennox OEM Replacement Furnace Control Board model 103085-02, covering setup, operation, maintenance, and troubleshooting.

Brand: Lennox

Lennox OEM Replacement Furnace Control Board 94W83 User Manual

94W83 • December 4, 2025 • Amazon

Comprehensive instruction manual for the Lennox 94W83 OEM Replacement Furnace Control Board (103085-03), covering installation, operation, maintenance, and troubleshooting.

Brand: Lennox

Lennox S40 (22V24) Smart Thermostat User Manual

S40 • December 2, 2025 • Amazon

Comprehensive instruction manual for the Lennox S40 (22V24) Smart Thermostat, covering installation, operation, features, specifications, and warranty information.

Brand: Lennox

Lennox Healthy Climate UVC-24V Replacement UV Bulb Instruction Manual

Y0390 • November 22, 2025 • Amazon

Comprehensive guide for installation, operation, and maintenance of your Lennox Healthy Climate UVC-24V compatible UV bulb.

Brand: Lennox

Lennox 32M8801 Furnace Control Board Instruction Manual

32M8801 • November 18, 2025 • Amazon

This manual provides instructions for the installation, operation, maintenance, and troubleshooting of the Lennox 32M8801 OEM Replacement Furnace Control Board.

Brand: Lennox

Lennox 40K82 BDC3-1 Circuit Board HVAC Furnace Control Manual

40K82 BDC3-1 • November 18, 2025 • Amazon

Comprehensive instruction manual for the Lennox 40K82 BDC3-1 Circuit Board, covering installation, operation, maintenance, and troubleshooting for HVAC furnace systems.

Brand: Lennox

Lennox 80M51 Limit Switch Instruction Manual

80M51 • November 14, 2025 • Amazon

Comprehensive instruction manual for the Lennox 80M51 Limit Switch, including installation, operation, maintenance, and specifications.

Brand: Lennox

Lennox 43W85 Inducer Motor Assembly Instruction Manual

43W85 • November 12, 2025 • Amazon

Comprehensive instruction manual for the Lennox 43W85 Inducer Motor Assembly, covering installation, operation, maintenance, troubleshooting, and specifications.

Brand: Lennox

Lennox 19W94 LB-84495B 33J62 Ignition Conversion Kit Instruction Manual

19W94 • November 11, 2025 • Amazon

Instruction manual for the Lennox 19W94 LB-84495B 33J62 Ignition Control Conversion Kit, providing setup, operation, maintenance, and troubleshooting information.

Brand: Lennox