4 Ton Variable Speed Split-System Communicating Compatible Air Conditioner, Circuit Voltage: 208-230, Hertz: 60, Phase: 1, Department of Energy Guide SEER: 19, EER: 13, Speed: Variable, Refrigerant: R410A, Connection Size: 3/8"X7/8", Connection Type: Sweat, Factory Charge: 7.5 lbs, Type: Air, Dimensions: 38-15/16''H x 31-3/16''W x 31-3/16''D, Weight: 205 lbs **Compatible with Ion Communicating Units** ***Unit includes a Manufacture Warranty, register your unit with the Manufacturer for details***