Refrigerant : R22 * 60Hz : 22,100~41,000 Btu/h * 50Hz : 24,000~33,750 Btu/h. Application * Room Air Conditioner * Package Air Conditioner * Unitary System * Cold Storage. Power Source * 1PH, 208-230V - 60Hz * 3PH, 380-420V - 60Hz * 1PH, 220-240V - 50Hz * 3PH, 380-420V - 50Hz.