The Venstar VST1075 is a 24V, 7-day programmable thermostat designed for fan coil systems, commonly found in hotels and apartments. It offers three-speed fan control and is compatible with both 2-pipe and 4-pipe systems, even featuring auto 2-pipe changeover with an optional sensor. The thermostat sports a large, easy-to-read backlit display and a straightforward interface. It allows ... https://www.partshnc.com/vst1075-venstar-24v-7day-prog-fan-coil-stat