Luxaire® Optimum™ Choice Rooftop Units

Up to 15-27.5 Ton

Luxaire® Optimum™ Choice Rooftop Units lead the industry with the most economical comfort cooling in the 15-27.5 ton range.

  • A/C downflow models
  • Standard-efficiency models (up to 11.1 EER/14.8 IEER)
  • Constant volume, IntelliSpeed™ single-zone VAV and VAV airflow options
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Reduce Energy and Operating Costs

Luxaire® Optimum™ Choice Rooftop Units provide up to 23% greater part-load efficiency than our comparable, standard-efficiency legacy units and nearly 15% higher IEER ratings than some competitive high-efficiency units. The remarkable performance of Choice rooftop units exceeds Department of Energy (DOE) 2018 guidelines by up to 25% and already surpasses future DOE 2023 part-load standards by almost 10%. A lightweight design and direct replacement footprint reduce up-front costs and simplify installation.
Reduce Energy and Operating Costs


  • A broad range of outdoor air options, including low-leak damper economizers, constant volume powered exhaust and modulating powered exhaust
  • Industry exclusive, optional Continuous Reset Single Zone (CRSZ) control
  • A wide range of gas heat options including full modulating gas heat with a 2.85 to 1 turndown ratio
  • Accessible connections, coils and compressors that simplify service
  • Multiple airflow strategies, including exclusive IntelliSpeed™ discrete fan control (DFC) with 2-stage and 4-stage options
  • Smart Equipment controls aid in reliability and ease of use
  • Independent circuits help avoid full unit shutdowns and a lead-lag compensator helps balance system wear and tear


Reduced Operating Costs And Code Compliance

Efficient performance exceeds DOE 2018 guidelines by up to 25% and surpasses DOE 2023 part-load standards by almost 10%.

Simplified Installation

Units weigh up to 33% less than other Luxaire® models and 22% less than competing products, reducing the need for structural reinforcements.

Reduced Up-Front Costs

Units fit nearly 70% of the competitive installed base, minimizing the need for costly transition curbs.

American Quality

Luxaire® Optimum™ Choice units are designed, engineered and assembled in the United States at the Johnson Controls Rooftop Center for Excellence in Norman, OK.

Airflow Strategies Lower Operating Costs

Standard-efficiency Luxaire Optimum™ Choice Rooftop Units with the optional 4-stage IntelliSpeed™ fan control have better efficiency than even the "high-efficiency" models from competitors.
Bar chart showing how the YORK Sun Choice rooftop unit achieves a higher part-load (IEER) efficiency than competitors.
York Sun Choice platform directly fits a large percentage of competitors Rooftop unit footprints

Direct Replacement Capability

Luxaire Optimum™ Choice platform directly fits a large portion of the installed market without the need for costly transition curbs. Be sure to confirm your models with your sales rep.

Verasys Controls

Luxaire Optimum™ Choice Rooftop Units are Verasys enabled, making it easy to improve comfort, efficiency and operating costs. Verasys offers remote connectivity for secure access anytime, anywhere. BACnet®-based, it connects seamlessly to Smart Equipment throughout your facility via wireless compatibility.

Learn More About Verasys
Verasys controls showing the configuration and performance of a building's YORK packaged rooftop unit.

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