Infinity 21 Central Air Conditioner – 24ANB1

We’re not the only ones that think highly of this unit. It’s earned the ENERGY STAR Most Efficient 2012 designation (select sizes) along with applause from Consumer’s Digest as a Best Buy winner.It’s easy to understand why. This model is the quietest, most efficient air conditioner we make for starters. Add to that the fact that its two-stage compressor can make a real comfort difference when it comes to managing indoor humidity.And if you want the ultimate in comfort, make sure you combine the 24ANB1 with an Infinity indoor unit featuring a comfort-inducing variable-speed blower motor and manage it all with an Infinity control. It’s the best way to assure you get the highest level of efficiency and cool comfort.


  • Up to 21 SEER cooling efficiency
  • Sound: as low as 65 decibels1
  • Superior humidity and temperature control
  • Two-stage compressor operation for ultimate comfort and quiet
  • Compressor sound blanket and Silencer System II design
  • Filter drier system protection from moisture and contaminants
  • WeatherArmor Ultra protection
  • Non-ozone depleting Puron refrigerant
  • 10-year parts limited warranty


Noise in Decibels
Seasonal Energy Efficiency Ratio
Heating Seasonal Performance
Energy Efficiency Rating


  • Up to 21 SEER
  • Up to 15 EER
  • All sizes meet ENERGY STAR qualifications1
  • Select sizes achieve ENERGY STAR Most Efficient 2012 designation


  • Compressor enhanced summer dehumidification when managed by the Infinity control
  • Sound: as low as 65 decibels2


  • Two-stage scroll compressor
  • System protecting high and low pressure switches
  • Sound reduction: compressor sound blanket, Silencer System II design and forward swept fan blades
  • Filter drier
  • Infinity level advanced diagnostic intelligence
  • Recommended control: Infinity control


  • 2-5 ton


  • 208-230 V


  • Heavy-gauge, galvanized steel construction
  • Baked-on, durable powder coat paint
  • Steel, louvered coil guard

Split System Air Conditioners

Split System Air Conditioners Product Category page


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