ABB ACH580-01-018A-2 4 kW HVAC drive. ABB ACH580-01-018A-2 is an ACH580 HVAC drive rated 4 kW, 18 A, 200-240 V, frame R1. It is designed for air-handling units, chillers, cooling towers, pumps and ventilation fans, with ABB drive control and energy-efficient motor operation.