Residential Outdoor Air Conditioners

American Standard offers a full line of Allegiance® air conditioners, with efficiencies from 13 to 18+ SEER “ among the highest in the industry. The higher the rating, the greater the efficiency, and the more you can save on your energy bills. Our Allegiance® family gives you a wide range of comfort choices, from our single-stage up to our two-compressor, highest efficiency model with its two-stage cooling and humidity control feature.

For our Selection of Allegiance Air Conditioning Systems click here:

*Minimum efficiency established by the Department of Energy. The majority of systems installed prior to 2006 are 10 SEER or lower. Potential energy savings may vary depending on your lifestyle, system settings, equipment maintenance, local climate, home construction and installation of equipment and duct system.