The Trane XL20i is discontinued and has a rating of up to 19.00 SEER and 9.0 HSPF. The XL20i features two-stage cooling and heating and has a multi-speed motor that changes speeds to maximize comfort. The WeatherGuard top protects components, and the DuraTuff base pan is rust-proof. The XL20 has a sound insulator on the compressors to provide quiet performance. When matched with a Trane variable-speed indoor unit, the XL20i gives greater humidity control when cooling and provides warmer air during heating start up. By running the fan at a slower speed during start up, temperature variances are reduced, providing optimum home comfort.
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