The W7763C, D and E Controllers are Chilled Ceiling Controllers in the Excel 10 product line. They cover a wide range of control applications including radiators, induction units, and fan coil units with manual fan switching, chilled ceiling and chilled beam and are suitable for either wall mounting or unit mounting. The controllers can operate as stand-alone units or networked using LonWorks. Interfaces are provided for a wide range of actuator types. Heating systems can be water or electric, and cooling systems can be chilled water supply or compressors. Extensive timing and interlock features make the W7763 especially suitable for systems using electric heat and compressors.