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Lennox News Room

Already the Most Energy-Efficient Rooftop Unit, Lennox' S-Class™ Line Now Offers Even More

DALLAS, TX — March 14, 2005 — Now the industry's most energy-efficient rooftop units3 are available with an even wider selection of capacities and options to reduce lifecycle costs and meet an increasing range of application needs.

New additions to the S-Class™ rooftop product line include:

  • 35-, 45- and 50-ton capacities
  • Gas/electric or cooling only models
  • Efficiency levels up to 10.5 EER and 12.6 IPLV, as verified by third-party testing

Additional factory-installed options are also available to help Lennox' customers improve unit performance, installation and serviceability while better controlling the indoor environment.

Added high-performance factory options include:

  • Horizontal Discharge decreases field conversion work for applications requiring horizontal rooftop units
  • Spring Isolation reduces noise by isolating components using two-inch vibration isolation springs (available on supply fan, high static power exhaust fan or compressors)
  • Phase Monitor helps prevent damage to electrical components from single phasing, phase reversal and low voltage conditions
  • Export Packaging facilitates shipping in overseas containers
  • Powered Ground Fault Circuit Interrupter (115v factory-wired service outlet) supplies power directly from the unit to hand tools

To learn more about the most recent innovations in Lennox' line of S-Class packaged rooftop units, contact a Lennox field sales representative or visit www.lennox.com.

About Lennox Industries

A worldwide leader in residential and commercial heating and air-conditioning systems, Lennox Industries Inc. is based near Dallas, Texas. Lennox Industries is a subsidiary of Lennox International Inc., which operates in over 100 countries and is a global leader in the heating, ventilation, air conditioning and refrigeration markets. Lennox International stock is traded on the New York Stock Exchange under the symbol "LII".


* When considering stead state efficiency (EER) for single packaged rooftop units, 35-50 tons, G/E, E/E or cooling only, 3 phase voltage. Established through competitive literature review, July 2004. Claim pertains to 10.8 EER rating for the SGA480H4B unit.

© 2019 Lennox International Inc.