ECY-PTU-208 (IMP) BBC Connected Terminal Unit Controller for fan coil, heatpump and chilled beam applications with 3 UI, 2 DI, 1 sensor input, 4 DOR (relay), 2 DOT (triac), and 4 AO. Embedded ENVYSION Viewer and xpressENVYSION. Preloaded apps in IMP units.