Lennox Manuals & User Guides
Lennox is a leading global provider of innovative climate control solutions, including high-efficiency furnaces, air conditioners, heat pumps, and indoor air quality systems.
About Lennox manuals on Manuals.plus
Lennox Industries is a premier provider of climate control products for the heating, ventilation, air conditioning (HVAC), and refrigeration markets. Founded in 1895 by Dave Lennox, the company has built a legacy of innovation and quality, delivering energy-efficient solutions for both residential and commercial applications.
Lennox offers a wide range of products designed to deliver precise comfort, including variable-capacity air conditioners, communicating smart thermostats like the S40, and advanced heat pumps capable of operating in extreme cold climates.
With a focus on sustainability and technological advancement, Lennox systems are engineered to improve indoor air quality and reduce energy consumption. The company supports its products with a robust warranty program and a vast network of professional dealers. Whether for a single-family home or a large commercial facility, Lennox provides reliable, high-performance HVAC equipment designed to maintain optimal environments efficiently.
Lennox manuals
Latest manuals from manuals+ curated for this brand.
LENNOX L10040 Rooftop D Box Units Installation Guide
LENNOX Single Zone High Static Concealed Ducted Indoor Units Instruction Manual
LENNOX EL297DFV070 Elite Gas Furnaces Instruction Manual
LENNOX 24J59 High Performance Economizer Instruction Manual
LENNOX ML296DFV090X Small Split Gas Furnace Instruction Manual
LENNOX SLP99DFV070XV Dave Signature Collection Gas Furnace Series User Guide
LENNOX MDD036M6-1P R-32 Multi-Zone High Static Concealed Ducted Indoor Units User Manual
LENNOX R454B Humiditrol Enhanced Dehumidification Accessory EDA Units Installation Guide
LENNOX Mini Split System Instructions
Lennox EL280UHE Elite Series Gas Furnace Product Specifications
Lennox G21/GSR21 Series Furnace Service Manual and Technical Guide
Lennox ENERGENCE Energy Recovery System Installation Instructions (50P2852xM/H)
Lennox ELXP Elite Series Commercial Heat Pump Outdoor Units Specifications
Lennox Strategos Packaged Rooftop Units: Performance Data & Options Quick Reference
Lennox GCS/CHA16 Series Commercial HVAC Service Literature
LHT/LDT Series Packaged Rooftop Units Installation Instructions
Termostato inteligente S40 Lennox®: Guía de instalación y configuración
Lennox SLP99DFV Gas Furnace Installation Instructions
Lennox Xion LHX Series Packaged Heat Pump: Commercial Rooftop Units (2-6 Tons)
Lennox Merit Series ML17XP1 Heat Pump Installation Instructions
Lennox LDT Enlight Rooftop Units: High-Efficiency Dual-Fuel Commercial HVAC
Lennox manuals from online retailers
Lennox S40 Smart Thermostat (Model 22V24) User Manual
Lennox X6670 Healthy Climate Air Filter Instruction Manual
Lennox 16C01 Fan Blade Instruction Manual
Lennox 10064911 Furnace Blower Motor Instruction Manual
Lennox R10064911 Furnace Blower Motor Instruction Manual
Lennox X0445 MERV 10 Air Filter for PMAC-20C (25" x 20" x 6") Instruction Manual
Lennox 83M00 LB-109531A Sure Light Replacement Kit Instruction Manual
Lennox ComfortSense 5500 Programmable Thermostat User Manual
Lennox 95M57-100438-03 25 Amp 3-Pole Definite Purpose Contactor User Manual
Lennox Smart Room Sensor 22V25 Wireless Sensor Instruction Manual
Lennox iComfort S30/E30 Smart Programmable Thermostat Replacement Screen (Model 19V30) User Manual
Lennox OEM Replacement Furnace Control Board 103085-02 Instruction Manual
Lennox video guides
Watch setup, installation, and troubleshooting videos for this brand.
What is a Lennox Heat Pump? How it Works for Home Heating and Cooling
Day in the Life: Lennox Counter Sales Associate Career Opportunities & Culture
LennoxPros.com Multi-Factor Authentication (MFA) Setup and Management Guide
Lennox International: A Legacy of Innovation in Energy-Efficient Climate Solutions
Lennox International: A Legacy of HVAC Innovation and Climate Solutions
Lennox International's Breakthrough in Cold Climate Heat Pump Technology and Sustainability
Lennox PureAir S Air Purification System: Whole-Home Air Quality & COVID-19 Virus Removal
Lennox LRP16 Rooftop Unit: Customer Testimonial on Utility Savings and Easy Installation
Lennox support FAQ
Common questions about manuals, registration, and support for this brand.
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Where can I find manuals for my Lennox products?
You can find manuals in the directory on this page, or visit the Lennox Owners Resource area on their official website for a comprehensive library of product literature.
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How do I register my Lennox product?
Lennox products can be registered online via the Product Registration page on the Lennox website. Registration helps keep you up to date on product information and warranty offers.
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What is the customer support phone number for Lennox?
You can contact Lennox customer support at 1-800-453-6669.
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What type of refrigerant do new Lennox systems use?
Many newer Lennox systems, such as the Merit Series ML16KP2 and EL22KCV, utilize R-454B refrigerant, which has a lower Global Warming Potential (GWP).
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Where can I look up warranty information for my unit?
Warranty coverage details can be found using the Warranty Lookup tool on the Lennox website, or by reviewing the warranty certificate included with your unit.