WH1T SERIESConstant Torque Motor (ECM)Efficiencies up to 14 SEERFeatures: WH1T feature a Constant Torque motor (ECM) which provides enhanced SEER performance with most WeatherKing outdoor units Versatile 4-way convertible design for upflow, downflow, horizontal left and horizontal right applications Factory-installed indoor coil. Sturdy cabinet construction with 1.0 inch (25.4 mm) of foil faced insulation for excellent sound and insulating characteristics. Field-installed auxiliary electric heater kits provide exact heat for indoor comfort. Kits include circuit breakers which meet U.L. and cUL requirements for service disconnect. 1 1/2 ton (5.3 kW) through 5 ton (17.6 kW) models are between 42 1/2 to 57' (1080 to 1448 mm) tall and 22' (559 mm) deep. All models meet or exceed 330 to 400 CFM (156 to 189 L/s) per ton at .3' (.7 kPa) of external static pressure. Enhanced airflow up to .7' external static pressure. Evaporator is constructed of aluminum fins bonded to internally grooved aluminum tubing. Suitable for application in mobile homes.