4 Ton Single Stage Geothermal Heat Pump, Circuit Voltage: 203-280, Hertz: 60, Phase: 1, Configuration: Horizontal, Return Air Option: Right Return, EER: 14.9, Stage: Single, Motor Type: PSC, Refrigerant: R410A, Metering Device: TXV, Factory Charge: 52 oz, Water Loop - Cooling BTU: 45,900/Heating BTU: 56,400, Ground Loop - Cooling BTU: 48,800/Heating BTU: 35,400, Connection Size: 1", Dimensions: 21''H x 25''W x 54-1/2''D, Weight: 268 lbs