Cool choice

There are several competing cooling technologies, but to find the most sustainable solution, you need to look beyond efficiency alone, and consider the asset’s whole life cost, explains Carl Turbitt, HVAC Drives UK Sales Manager, ABB
For cooling fans in air handling units (AHUs), there are two main competing technologies: electronically commutated (EC) fans, and motor + standalone variable speed drive (VSD) arrangements. An EC fan is a self-contained assembly comprised of an electric motor