Infinity 21 Air Conditioner 24ANB1

Infinity Series

Ultra Efficient Air Conditioner Built for Total Home Comfort

The Infinity Series central air conditioner is engineered to be the best, with our highest SEER rating (up to 21). When combined with the advanced Infinity System, it is our most energy-efficient heating and cooling system, based on stringent ARI cost standards.

The 24ANA1 includes:

  • Up to 21 SEER
  • Sound as low as 65db
  • Superior Humidity Control
  • Improved indoor air quality
  • Two-stage operation for ultimate comfort
  • Infinity© Control for Maximum performance
  • Silencer System II™
  • WeatherArmor Ultra™ System
  • Enhanced diagnostics with Infinity Control
  • Environmentally-sound Puron© refrigerant™

As an ENERGY STAR partner, Carrier Corporation has determined that the Infinity 21 air conditioners that achieve system combinations of 14.5 SEER and 12 EER or higher meet the ENERGY STAR guidelines for energy efficiency. Proper sizing and installation of equipment is critical to achieve optimal performance. Split system air conditioners and heat pumps must be matched with appropriate coil components to meet ENERGY STAR criteria. Ask your contractor for details or visit the ENERGY STAR Web site.

Performance Efficiency

  • SEER: up to 21


  • Quiet Level: As low as 65 dB
  • Features: Compressor Blanket


  • Controls Supported: 2nd generation Infinity Control
  • Diagnostics: Enhanced diagnostics with Infinity control


  • Refrigerant: Puron refrigerant
  • Compressor: Two-stage scroll
  • Cooling Capacity: 2 - 5 (tons)
  • Pressure Switches: High and Low


  • Protection: WeatherArmor Ultra System
  • Construction: Heavy gauge galvanized steel
  • Paint: Powder-coated, baked-on
  • Coil Guard: Steel Louver Coil Guard

10-year parts limited warranty when properly registered*

*To the original owner, the Carrier Infinity Series Central Air Conditioner is covered by a 10-year parts limited warranty upon timely registration of your new equipment. Ask your Carrier dealer about optional extended warranties, which may include labor. Warranty period is 5 years if not registered within 90 days. Jurisdictions where warranty benefits cannot be conditioned on registration will automatically receive a 10-year parts limited warranty. See warranty certificate at for complete details.


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