The Industry’s Most Efficient

  • Up to 20 SEER on XL20i (4TTZ0) Air Conditioner

Operates Quietly

  • Two-Stage Cooling
  • Variable-Speed Fan Motor
  • Low-Resistance Airflow
  • Sound Insulator on Compressors
  • Comfort-R™ Enhanced Comfort Setting for Cooling on Air Conditioners and for Cooling and Heating on Heat Pump models

Lasts a Long Time

  • Dual Climatuff® Compressors
  • Full-Side Louvered Panels
  • WeatherGuard™ Top Protects Components
  • Baked-On Powder Paint
  • Weather Resistant WeatherGuard™ Fasteners
  • Woven Spine Fin™ Coil
  • DuraTuff™ Rust Proof Base Pan


4TTZ0024A1- 2 ton
4TTZ0036A1- 3 ton
4TTZ0048A1- 4 ton
4 TTZ0060A1- 5 ton

trane air conditioner XL15i


This product meets ENERGY STAR requirements.


  • Ten-Year Limited Warranty on compressors and outdoor coil
  • Ten-Year Limited Warranty on internal functional parts
  • The Ten-Year Functional Parts Warranty extends to the indoor gas furnace, coil, air handler, or thermostat when installed as part of a complete XLi comfort system
  • Optional Extended Warranties available. Extended Warranties cover labor, refrigerant and other costs not covered by Manufacturer’s Limited Warranty