1.5 Ton Single Stage Split-System Communicating Air Conditioner, Circuit Voltage: 208-230, Hertz: 60, Phase: 1, Department of Energy Guide SEER: 16, EER: 12.2, Stage: Single, Refrigerant: R410A, Connection Size: 3/8"X3/4", Connection Type: Sweat, Factory Charge: 5.25 lbs 9 oz, Type: Air, Dimensions: 28-11/16''H x 31-3/16''W x 31-3/16''D, Weight: 176 lbs **Compatible With Observer Communicating Units** ***Unit includes a Manufacture Warranty, register your unit with the Manufacturer for details***