ABB ACH580-01-099A-6 75 kW HVAC drive. ABB ACH580-01-099A-6 is an ACH580 HVAC drive rated 75 kW, 99 A, 500-600 V, frame R7. It is designed for air-handling units, chillers, cooling towers, pumps and ventilation fans, with ABB drive control and energy-efficient motor operation.