Rated at over 20.5 SEER, the XC21 air conditioning unit is in the Signature™ Collection. Features include a two-stage scroll compressor and high-efficiency outdoor coil. This unit uses R-410A. Designed with SilentComfort™ technology, the unit includes noise-reduction features such as a patent-pending fan design, compressor with vibration insulators, sound-dampening fan grille, and Hushtone® cabinet. It has a new, distinctive cabinet design, including SmartHinge™ louvered panels. According to the manufacturer, the company's system operations monitor reviews system performance similar to diagnostic systems in an automobile.

Lennox, Dallas, TX; www.lennoxinternational.com.

eProduct #184