Building efficiency safety and comfort with drives and motors

Regardless of the season or external conditions, variable speed drives help make HVAC applications efficient, safe and informative while providing high levels of comfort, control and safety. Here ABB’s Carl Turbitt takes a tour around a typical in plant and highlights the opportunities. 1 Cooling tower A cooling tower extracts waste heat into the atmosphere. Using a variable speed drive, instead of conventional direct-on-line or Star-Delta control, means the tower’s fan and pump speed can…