20 Ton AC Tandem Scroll Compressors, Volts: 200-230, Hertz: 60, Phase: 3, Capacity: 252,000 BTU, Refrigerant: R22, Oil Type: Polyolester, Connection Size: Liquid-1-3/8"; Gas-1-5/8", Connection Type: Sweat, Stage: Single, Height: 22-37/50'' H, Base Dims: 15-22/31'' W X 29-39/50'' D, Weight: 289 lbs