Our most configurable system, the L Series can be built to meet your specification so you get exactly what you want. Just let us know your needs.
For over 100 years, Lennox has been keeping you comfortable in all kinds of weather. And because we build according to the internationally recognized ISO 9002 Manufacturing standards, we back our products with some of the best warranties the industry has to offer. With a manufacturing and engineering commitment to excellence like ours, it's no wonder you can expect only the best from Lennox

• Up to 11.5 EER
• Quick Access (Hinged Panels, Slide Out Blower Deck, Tool-less Access) for Easier Maintenance - Standard on Every Unit
• IMC Board for Monitoring and Troubleshooting
• Surpasses Most Utility Rebate Minimum Levels
• Optional High Efficiency Motors Factory Installed
• Color Coded and Hot Stamped Wiring for Easier Service and Maintenance
• 00F Low Ambient Operation - Standard
• More Factory Installed Options For Reduced Installation Costs
• Configure to Order Product to Meet Your Exact Specifications/Application
• Thermal Expansion Valves with Removable Heads as Standard
• Common Components for Fewer Service Parts
• 3-30 Tons with Only 5 Footprints and 4 Roof Mounting Frames
• Through the Base Power all Models
• Through the base Gas Entry (Except 3-6 Ton)
• Full Perimeter Base Rails for Structural Integrity and Easier Handling
• 3-Year Integrated Modular Control Limited Warranty
• 5-Year Compressor Limited Warranty
• 10-Year Aluminized/15-Year Stainless Steel Heat Exchanger Limited Warranty

Lowest LifeCycle Costs™ means when you add up the installed cost, the operating costs, the maintenance and service costs... L Series units comes out way ahead.

TECHNOLOGY

For over 100 years, people have trusted Lennox to make their lives more comfortable, both on the job and at home. That tradition continues with the L Series^® product line.

Imagine a product line that offers 14 cooling capacities, ranging from 3 to 30 tons, in only 4 different footprints. Units that feature smaller compressor circuits for quicker refrigerant recovery, slab coils for easy cleaning, and through-the-base power and gas entry.

In fact, the L Series product line has a remarkable amount of factory installed options, which means simpler, less-costly installations. Factory installed options range from gear-driven economizers to smoke detectors, Direct Digital Control (DDC) options, stainless steel heat exchangers and disconnects. And thanks to our innovative manufacturing process, we can build and deliver your built-to-order L Series units in weeks, not months.

PERFORMANCE
You can depend on the L Series product line to provide many years of dependable service. When it comes to reliability, Lennox leads the way. Thanks to Lennox' high standard of manufacturing excellence and quality engineering, the L Series product line offers the lowest life cycle cost of any commercial rooftop product line in the marketplace.

In addition, Lennox provides customer service that is unsurpassed in the industry. Our trained staff of commercial professionals stand ready to service requests, ensure follow-up, and provide solutions.

EFFICENCY
With efficiency ratings as high as 11.5 EER and IPLV (Integrated Parts Load Value) ratings up to 13.3, L Series^® package units feature energy efficiencies that are unsurpassed in the industry. In fact, L Series units qualify for most utility company rebates. Our optional high-efficiency blower motors exceed federal standards, and our multiple-compressor configuration enables each unit to meet the comfort demands while delivering lower energy bills.

ENERGY SAVINGS
Simply put, the higher the efficiency rating, the greater the energy savings. So, what you invest on the front end by purchasing a more efficient unit, you earn back each month in lower energy costs. Over time, the savings will be an additional comfort, especially when your investment in high efficiency products is returned within a few years.

Ask your Lennox representative or independent contractor for an estimate of actual savings in your area.

We build according to internationally recognized ISO 9002 standards. And, we stand behind our products with some
of the best warranties in the industry. The L Series^® units are backed by a 15-year limited warranty on our stainless steel gas heat exchanger, a 10-year limited warranty on our aluminized gas heat exchangers and a 5-year limited warranty on the compressors. The integrated modular control carries a 3-year limited warranty. All remaining covered components carry a 1-year limited warranty. That's one more reason to trust Lennox.

Quality Components



1. Thermostatic Expansion Valves–Offer greater reliability over a variety of operating conditions.
   
2. Direct-Drive Fan–This precision-balanced, direct-drive outdoor condenser fan is designed to run slower for quieter and more durable performance.
3. Slide Out Blower Deck–Improves service access for blower and motor.
   
4. Common Components–Common components are used throughout the L Series product line which means fewer parts to stock on the service truck or at the shop.
5. Isolated Compressor Compartment–Allows performance check during normal compressor operation, without disrupting airflow.
6. Integrated Modular Control–Solid-state control manages every function with digital accuracy. With its sophisticated diagnostic capabilities, the Integrated Modular Control identifies problems, lowers operating costs, and reduces stress on the unit. In addition, it is compatible with third-party control systems, providing our customers with unlimited flexibility.
   • Low Ambient Protection–Every L Series unit comes standard with low ambient protection down to 0°F.
   • looks good year after year.

   OPTIONAL

7. Factory Installed Options–Gear-driven economizer, power exhaust, disconnects, 115 volt GFI, service valves and even more options that reduce field labor and simplify installation. The GFI option provides a convenient receptacle for power tool hook-up. Gas/Electric and Cooling Only service valves allow unit pump-down without having to recover HCFC-22.
8. Optional Horsepower, Drive and Efficiencies–Optional blower motor horsepower and drives yield a wider range of operating static and air volumes. High efficiency option reduces operating cost and qualifies for certain rebates.
9. Easy Access–Hinged access panels are standard on the entire product line and allow easier and quicker access to unit components.

   EASY MAINTENANCE

10. Common Cabinet Sizes–Cooling only and Gas/Electric units share the same cabinet. Multiple efficiencies are obtained in the same cabinet, providing greater design and installation flexibility.
11. Bottom or Side Gas and Power Entry–Convenient, flexible installation. Bottom entry eliminates need for additional roof penetrations.
12. Full Perimeter Base Rail–Provides greater unit structural integrity. Easier to handle the unit when rigging and transporting.

    LOOKS GOOD YEAR ROUND

13. Corrosion-Resistant Cabinet–A durable, baked-on enamel finish protects the heavy-gauge, galvanized steel cabinet against rust and corrosion.

FACTORY INSTALLED OPTIONS

Alternate motors and drives

CONFIGURE TO ORDER

The L Series line has a remarkable amount of factory-installed options along with a host of standard items all of which means simpler, less-costly installations. With configured to-order manufacturing, you can order it the way you want it.

MORE FACTORY INSTALLED OPTIONS

Stainless Steel Heat Exchanger — With a standard 15 year warranty and a minimum mixed air temperature of 30°F, the stainless steel heat exchanger is ideal for application requiring a large percentage of outside air.

Filter Status Switch — Signals that the filter in the unit needs to be changed.

Return Air and Supply Air — Smoke detectors can be installed at the factory or in the field offering greater job flexibility.

Disconnect — Eliminates the need for field installation, which saves time and money at the job site.

Exhaust Options — Both gravity and powered exhaust are available from the factory, which minimizes field labor and offers the flexibility needed to meet job requirements.

Blower Status Switch — Ensures that the fan is operating, if not, this switch will signal the IMC to shut the unit down.

MORE STANDARD FEATURES

Scroll Compressor (High Efficiency Models) — Delivers lower operating costs at efficiency ratings of 11.5 EER and 13.3 IPLV. As well as providing quieter and more reliable operation.

 Slab Condenser Coil — Easier cleaning results in more cost efficient operation. (8.5-30 Ton gas/electric and cooling only models)

Color Coded Labeled Wiring — Provides easy identification and tracing which simplifies service and maintenance.

CO2 Strategy — The IMC is designed to monitor CO2 levels and adjust the economizer dampers to maintain ideal fresh air during periods of less than design occupancy. Requires field-installed CO2 Sensor (Picture shown).

© Copyright Lennox Industries Inc., 1999