AL21 21 SEER Variable Capacity Air Conditioner
Our most efficient, most advanced air conditioner.
| Price Range | $$$$ |
| Efficiency Range | Up to 20 SEER2 |
| Sound Levels | As low as 53 dBA |
| Warranties | Lifetime compressor, 10-year parts |
Premium Comfort with Lower Energy Use
The advanced design of the Champion® Momentum™ AL21 21 SEER Variable Capacity Air Conditioner dynamically adjusts capacity and airflow to precisely match changing needs for maximum comfort and minimized power consumption. In fact, these ENERGY STAR® Most Efficient qualified models can significantly cut energy costs compared to older, lower SEER units. A suite of leading-edge technologies provide quiet operation, maximized efficiency and long-term, premium comfort you expect from an industry leader.
Features
- ENERGY STAR® Most Efficient qualifying efficiency up to 21 SEER
- Charge Guard™ allows for faster, more accurate installations
- Unit pairing with Champion® Hx™ and Hx™3 Touch-screen Thermostats enhances comfort and improves control of your system
- ShadowDrive™ system silences vibrations with swept wing fan and composite base, while variable-speed compressor provides quiet and efficient operation
- Climate Mark™ maximizes overall efficiency and provides improved comfort by fine-tuning the system to the indoor and outdoor environment
- Integrates with the Hx™3 Communicating Zoning System
Benefits
LOWER COSTS OF OWNERSHIP
These 21 SEER, ENERGY STAR® Most Efficient qualified models can cut energy costs significantly compared to older units.
PRECISE, CONSISTENT TEMPERATURES
Climate Mark™ tunes the system to the indoor and outdoor environment for maximized efficiency and improved comfort.
PEACE OF MIND
Innovative, built-in Charge Guard™ allows for faster, more accurate installations and provides integrated refrigerant charge monitoring.
CONFIDENCE GUARANTEED
Industry-leading warranties ensure years of dependability.
Warranty
With a Champion® residential system, comfort is more than a feeling – it’s a promise. Because Champion® home comfort systems are built to the highest standards and backed by the best warranties.
Register Your Warranty 
Related Products
*To receive the extended 10-year parts warranty or premium system warranty for qualifying units, you must register online at www.upgproductregistration.com. Registration must be completed within 90 days of installation or 90 days of the closing date for new home construction. Failure to register online within 90 days results in a standard 5-year parts warranty. Failure to return the registration card does not affect rights under the standard warranty.