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Lennox XC21 Air Conditioner

Lennox Signature ® Collection

 XC21 Air Conditioner

An Even Greater Level Of Comfort And Efficiency

   XC21 Air Conditioner

 XC21 Air Conditioner

Want to beat the heat and high utility bills, without sacrificing comfort? The XC21 air conditioner takes cooling technology to new heights, so your utility bills can reach new lows. Enhanced with innovative features, the XC21 provides ultra-high-efficiency cooling with two stages of operation. 80% of the time, it runs at low stage to reduce energy costs and sound levels. Two-stage operation and exclusive SilentComfort™ technology provide optimal performance for efficient, quiet cooling.

Efficient, Quiet and Responsible.
With industry-leading efficiencies of up to 20.50 SEER, the XC21 can save you hundreds of dollars each year on utility bills. With a patent-pending fan design, two-stage operation, and an insulated compressor compartment keeping sound at a minimum, the XC21 is approximately 13 times quieter than a standard air conditioner. And, it conserves energy while preserving the environment by using R410A refrigerant which meets the EPA’s standards for ozone and environmental safety.

Reliable and Customizable.
The XC21 features the exclusive Lennox® Systems Operations Monitor. Similar to automobile diagnostics, this monitor continually measures system performance which helps technicians solve problems faster and more accurately. It can even let you know when service is needed. That’s the kind of worry-free performance Lennox’s promise of quality delivers. The XC21 is also optimized for use with the Humiditrol® whole-home dehumidification system, giving you the flexibility to improve comfort and indoor air quality. This customizing option also saves you money because dehumidified air feels cooler, allowing you to set your thermostat setting higher. According to the U.S. Department of Energy, you can save 5-7% on your monthly cooling bill for every two degrees you raise your thermostat. Dehumidified air also reduces the opportunity for mold and mildew problems.

Outstanding Features

  1. SilentComfort™ Fan Grille – Uses patent-pending, vortex suppression technology to reduce sound of airflow exiting the unit, providing a quieter environment outside your home.
  2. Factory-Installed Lennox® System Operations Monitor – Continually reviews system performance to allow fast troubleshooting, which assures you of worry-free maintenance.
  3. SilentComfort™ Fan Blade with Variable Speed Direct-Drive Blower – Provides ultra-quiet, energy-efficient operation with patent-pending design.
  4. Insulated Compressor Compartment – Minimizes operating sounds with innovative materials and industry-leading, vibration-isolating mounts.
  5. Two-Stage Compressor – Operates at low stage most of the time for quieter, more efficient performance. Plus, it cools your home using ozone-responsible R410A refrigerant.
  6. High-Efficiency Outdoor Coil – Provides exceptional heat transfer and low air resistance for high-efficiency operation that can lower your cooling bills.
  7. SmartHinge™ Louvered Coil Protection – Allow quick, easy access to interior components from all sides, so the unit can be serviced in minimal time, saving you money.

Lennox® heating, cooling and indoor air quality products are designed to provide efficient, economical comfort – not only as individual units, but also together as an integrated system. This combined network of products delivers on every front, from consistent temperatures and balanced humidity to improved indoor air quality. The Lennox XC21 Air Conditioning System is no exception.



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Smyth Air Conditioning
3718 23rd Ave S.
Lake Worth, FL 33461


Monday - Friday
8AM - 5PM


Services from Boca to Stuart

Office: (561) 533-6066

Office: (772) 569-5182

Fax: (561) 533-9912