Infinity Series Central Air Conditioner Models: 38TDB Ratings Energy Efficiency Quiet Level Durability Key Features Up to 21 SEER 70 db Superior humidity control Improved indoor air quality Two stage operation for ultimate comfort Infinity™ Control Board for maximum performance Silencer System II™ WeatherArmorUltra™ System Up to 23 diagnostic checkpoints Environmentally sound Puron® Refrigerant 10-year compressor limited warranty 5-year parts limited warranty Click here to read more. Performance Series Central Air Conditioner Models: 38TSA Ratings Energy Efficiency Ouiet Level Durability Key Features Up to 15 SEER 67 db WeatherArmorUltra™ Protection System Environmentally sound Puron® Refrigerant or R-22 Refrigerant 10-year compressor limited warranty 5-year parts limited warranty Click here to read more. Comfort™ 10 Air Conditioner - Model 38TKB/38TKW Energy efficiency of 10.0 SEER Freon 22® refrigerant Protected by Carrier's WeatherArmorTM coil guard 10-year compressor warranty 5 year parts limited warranty Read more about 38TKB

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