With a SEER rating of up to 18, the Infinity 18 air conditioner features a two-speed compressor that operates on low speed 80 percent of the time for greater efficiency. The system is insulated to operate with sound ratings as low as 69 decibels. The Infinity system allows the homeowner to control temperature, humidity, air quality, fan speed, and ventilation and detects when the filter needs replacing. The Infinity 18 uses environmentally friendly Puron refrigerant. 800.227.7437. www.carrier.com. Circle 160.
