4 Ton Variable Speed Split-System Communicating Compatible Heat Pump, Circuit Voltage: 208-230, Hertz: 60, Phase: 1, Department of Energy Guide SEER2: 18.4, Speed: Variable, Refrigerant: R410A, Connection Size: 3/8"X7/8", Connection Type: Sweat, Factory Charge: 12 lbs 5 oz, Type: Air, Dimensions: 45''H x 30-1/2''W x 35''D, Weight: 222 lbs **Compatible With iComfort Communicating Units**