The Advanced Ventilation Controller (TC-AVC) is a programmable thermostat that can be used to control either high or low voltage fans. The controller can be hardwired to thermostatically control fans such as the Cool Components VS-IDF Inline Duct Fan and the VS-RSC Remote System Cooler. Additionally, it can be used to control low voltage fans by hard wiring it to an electrical outlet. This unit will enable the user to choose/program the appropriate set points for any application. The controller is wall mountable (rack mount version is coming soon), fully programmable and has a backlit LCD display to show ambient temperature and make programming simple. In addition to a built-in temperature sensor, an optional 20 foot remote sensor is available for added versatility. This may be used when sensing and controlling the temperature in a projector enclosure, rack or other remote location.The controller features 5 relays that offer a large amount of flexibility and customization within your system. Two relays are programmable with one intended for fan operations and the other for alarm (all output high voltage only - do not connect low voltage products to the unit). The three fan relays trigger in relation to the user defined temperature set point with relay #1 triggered at the set point, #2 triggered at approximately 6 degrees higher, and #3 triggered at approximately 15 degrees higher than the main set point. For example, if you have an existing rack with high-voltage fans, you could attach primary fans to relay #1 and then secondary fans to relay #2. Venting fans could then be connected to relay #3. Ultimately the two alarm relays, 4 and 5, could be used to sound an audible alarm or power emergency fans to protect against a catastrophic failure if installed, for instance, in a rack full of server and switching equipment.