5 TON CONVERTIBLE NATURAL GAS/ELECTRIC PACKAGED UNIT, VOLTS: 208-230, HERTZ: 60, PHASE: 1, REFRIGERANT: R410A, FACTORY CHARGE: 72 OZ, STAGE: SINGLE, DEPARTMENT OF ENERGY GUIDE SEER (RANGE): 14, EER: 11, CFM: 2000, BTU INPUT: 72000, BTU OUTPUT: 76760, COOLING BTU: 57000, HEATING BTU: 96000, RETURN DIMS: 13.5''H X 16''W, SUPPLY DIMS: 16''H X 13.5''W, OVERALL DIMS: 43''H X 47-1/2''W X 55-4/5''D, WEIGHT: 472 LBS