The T7600 series LonTalk® thermostat is specifically designed for multi-stage control of heating and cooling equipment such as rooftop, split, and self-contained units. The product is available with and without scheduling capability and features an intuitive, menu-driven back-lit LCD display. Unique models with proportional economizer logic are available. Configuration can be performed directly on the thermostat, through the usage of a concealed button or via the network plug when using an LNS enabled software tool such as LonMaker® or LonWatcher®. Conforms to LonMark® space comfort controller functional profile 8550.