Welcome to the Rooftop Revolution

Introducing the new Lennox Model L™ , the most powerful, most advanced rooftop unit in the industry! The Model L rooftop unit uses an innovative unit controller and advanced variable-speed technology to maximize utility rebates and energy savings. Premium diagnostic features reduce installation, service and maintenance expenses to provide the lowest total cost of ownership in the industry.

Product Features:

  • Energy Optimization: Model L rooftop units deliver the lowest total cost of ownership through variable-speed components and intelligent operation.
  • Engineered Intelligence: The Lennox® CORE Control System delivers connected service, open integration, reliable performance, and efficiency optimization to empower all parts of your organization.
  • Complete Comfort: Advanced technologies deliver premium comfort and indoor air quality in a wide range of applications.
  • Simple Services: Model L rooftop units maximize the efficiency of maintenance and service operations, reducing operational costs and minimizing downtime.
  • Advanced HVAC Solutions: Includes variable speed technologies, Humiditrol+, enhanced dehumidification, and DirectPlus™ blower.
  • Ultimate Indoor Air Quality System: Can be factory or field installed.

Read more about Model L product features here.

Download this informational brochure for additional information.


Climate Systems provides fresh Sioux Falls HVAC innovations to the area. Call 605.334.2164, email info@climatesystemsinc.com or visit climatesystemsinc.com to learn more.

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