4 Ton Two Stage Convertible Packaged Heat Pump Unit, Volts: 208-230, Hertz: 60, Phase: 1, Refrigerant: R410A, Factory Charge: 170 oz, EER2: 11.2, Department of Energy Guide SEER2 (Range): 15.2, CFM: 1800, Overall Dims: 42-3/4''H X 47''W X 51''D, Weight: 499 lbs ***Compatible Heat Kit: HKP-(05-20)C, HKR-08C (Not Included)***