Carrier Infinity® 21 Air Conditioner

Up to 21 SEER
65 dB
Two-Stage Scroll
Exceptional Cooling Performance / Low Sound Operation

This is the top-of-the-line air conditioner from Carrier. Is this the unit you purchase when you’re planning to sell your home in two years? Probably not. But if you’re looking for exceptional comfort and efficiency, it will deliver. With 21 SEER efficiency and an ultra-low sound level that hits down around 65 dB these are definitely amazing units. They also boast the Carrier Infinity level diagnostics if you use their control.

Carrier 24ANB1 Air Conditioner Details:


  • Up to 21 SEER
  • Up to 15 EER
  • All sizes meet ENERGY STAR® qualifications


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


  • 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

Additional info on the Carrier Infinity® 21 Air Conditioner

We’re not the only ones that think highly of this unit. It’s ENERGY STAR® qualified in all sizes and has earned applause from Consumer’s Digest as a Best Buy® winner.It’s easy to understand why. This model is the 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.Two-stage compression lets the system bring the cool when it’s needed but allows it to function mostly in low-stage, where you get the highest efficiency and the best dehumidification due to longer run times. It’s also quieter in low stage.And if you want to really step up 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.

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Featuring the Carrier 24ANB1 Air Conditioner
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