4 Ton Two Stage Split-System Communicating Compatible Air Conditioner, Circuit Voltage: 208-230, Hertz: 60, Phase: 1, Department of Energy Guide SEER2: 14.3, Stage: Two, Refrigerant: R410A, Connection Size: 3/8"X7/8", Connection Type: Sweat, Factory Charge: 15 lbs 1 oz, Type: Air, Dimensions: 46-1/2''H x 38-1/4''W x 34-1/2''D, Weight: 295 lbs **Compatible with York HxTM Thermostat or AE & AVC Series Air Handler**