The Honeywell TB6575C1000/U is a digital fan coil thermostat from the SuitePro series. It supports 120, 240, and 277 VAC power inputs. This thermostat offers 3-speed fan control and is compatible with both 2-pipe and 4-pipe fan coil systems, selectable via manual configuration. Its digital interface provides precise temperature control and easy operation. https://www.partshnc.com/tb6575c1000u-honeywell-120240277vac-3-speed-digital-fan-coil-suitepro-thermostat;-2-or-4-pipe-manual