Parallel or opposing blades for the best mix of air in VAV systems? What about deploying filtration only when you really need it, thereby avoiding unnecessary pressure drop? Include some ideas about economizer control and another vote for CO2 sensors and demand-controlled ventilation, and you've got some worthwhile - if not always traditional - answers for airside controls blowin' in the wind.
Retrieving every last bit of performance from the system while stopping short of the surge line is no small feat. Dig into sizing, tower selection, chilled water loads and stability, and condenser water management to leave no efficiency stone unturned. Read more in April issue