"To ensure optimum efficiency and operation of your system, this Trane 2 Ton 20 SEER XV20i 24000 BTU Variable Stage Heat Pump 4TWV0024A1000C enables the HVAC system in your home to communicate with other components and automate adjustments. With Trane TruComfort™ technology at heart, the 20 SEER XV20i is able to ensure that minor adjustments can be made to quickly optimize for comfort and efficiency throughout the day. This helps you get the highest comfort while significantly lowering your energy costs. And, this is entirely possible due to the presence of the Climatuff® Variable Speed Inverter Compressor, which is able to make precise changes through its 750 incremental stages. Together, these additional features make it so that your 24000 BTU Variable Stage Heat Pump operates at 20 SEER efficiency, which is the best from Trane’s lineup. In addition to efficiency, Trane has ensured that the condenser is extremely durable. First off, they have ensured that all the panels are galvanized, which helps significantly in preserving your airflow efficiency. Next, Trane has equipped its 20 SEER XV20i with WeatherGuard™ Fasteners, which are zinc-coated to resist corrosion. Features of Trane 2 Ton 20 SEER XV20i 24000 BTU Variable Speed Outdoor Heat Pump 4TWV0024A1000C ComfortLink™ II Capability Louvred Panels for maximum protection Climatuff® Variable Speed Inverter Compressor with high precision due to 750 stages. Capable compressor sound insulator for low noise levels Woven SpineFin™ Coil Variable Speed Fan Motor Swept Fan Blade 20 SEER rating, among the highest in Trane’s lineup of Heat Pumps Specifications of Trane 2 Ton 20 SEER XV20i 24000 BTU Outdoor Variable Stage Heat Pump 4TWV0024A1000C Heat Pump Specifications Nominal Capacity 2 Ton Cooling Capacity 24000 BTU Horsepower 1/3 HP Compressor CLIMATUFF®- SCROLL Coil Spine Fin TM"