4 Ton Two Stage Split-System Communicating Air Conditioner, Circuit Voltage: 208-230, Hertz: 60, Phase: 1, Department of Energy Guide SEER: 17, EER: 12.5, Stage: Two, Refrigerant: R410A, Connection Size: 3/8"X7/8", Connection Type: Sweat, Factory Charge: 12.94 lbs, Type: Air, Dimensions: 40-3/8''H x 35''W x 35''D, Weight: 283 lbs **Compatible with Ion Communicating Units** ***Unit includes a Manufacture Warranty, register your unit with the Manufacturer for details***