
Dave Lennox Signature® Collection
XC21 Air Conditioner

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Brochure
Overview:
- Up to 21 SEER
- Multi-Stage scroll Compressor for finely tuned comfort and humidity levels
- As low as 69 dB
XC21 Air Conditioner
The most efficient two-stage central air conditioner you can buy*

Here are some of the top features of the XC21:
Efficiency rating of up to 21.20 SEER can save you hundreds of dollars each year*, compared to a standard air conditioner.
SunSource® Solar-Ready option allows you to add solar modules and create a solar powered system that generates electricity for your air conditioner and more.
Two-Stage cooling allows the XC21 to run more efficiently and produce more even temperatures than a conventional single-stage system.
SilentComfort™ technology delivers sound levels as low as 69 dB, approximately 20% quieter than a standard air conditioner.†
SilentComfort™ Outdoor Fan Motor with Composite Fan Blades provides extremely reliable starting and running performance, even under the harshest outdoor conditions.
Quiet Operation
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- The quietest two-stage central air conditioner you can buy3
SilentComfort™ technology delivers sound levels as low as 69 dB, approximately 20% quieter than a standard air conditioner.†
- Precision-balanced, direct-drive fan—delivers ultra quiet operation with a patent-pending fan design
- SilentComfort fan grille—provides vortex suppression to reduce sound of airflow exiting unit
- Insulated compressor compartment—minimizes operating sounds with innovative, industry-leading materials and sound-isolating mounts
Home Comfort
- Dependable scroll compressor with Silent Comfort technology—provides smooth, efficient and reliable operation
- Humiditrol® whole-home dehumidification system****; compatible—allowing the system to manage the moisture in your home’s air for greater comfort and improved indoor air quality
Environmentally Responsible
- Renewable energy resource—delivers environmental benefits when upgraded to a SunSource® Home Energy System that turns solar energy into electricity for your home
- Chlorine-free R-410A refrigerant—provides exceptional comfort without exacting a costly environmental toll
- Listed in the GreenSpec® Directory—a leading resource of environmentally responsible products
Reliable Performance
- SilentComfort™ Outdoor Fan Motor with Composite Fan Blades—provides extremely reliable starting and running performance, even under the harshest outdoor conditions
- PermaGuard™ Cabinet—heavy-gauge, galvanized steel construction, louver coil guard, baked-on powder finish and durable zinc-coated steel base provide long-lasting protection against rust and corrosion.
- SmartHinge™ louver design—allows quick, easy access to interior components from all sides for cleaning and maintenance. Protects coils from damage and provides clean appearance
- 10-Year Limited Warranty on covered components including compressor
- 10-Year Limited Warranty on covered components including compressor
Energy Efficiency (SEER): Up to 21.2
SEER The Seasonal Energy Efficiency Ratio is a cooling efficiency rating for air conditioners. The higher the SEER, the better the energy performance, the more you save.
- The most efficient two-stage central air conditioner you can buy3
- Efficiency ratings of up to 21.20 SEER—can save you hundreds of dollars a year, compared to a standard air conditioner
- SunSource® Solar-Ready option—allows you to add solar modules and create a solar powered system that generates electricity for your air conditioner and more, reducing energy consumption and utility costs
- iComfort®-enabled technology—allows the air conditioner, when installed with the easy-to-use programmable iComfort Wi-Fi® Touchscreen Thermostat, to exchange information and make adjustments as needed to optimize performance and efficiency**
- High-efficiency outdoor coil—provides exceptional heat transfer and low air resistance for high-efficiency operation
- Federal, state and local tax rebates and incentives may be available with a SunSource solar installation.***





