The W7752D, E, F and G Controllers are communicating mains-powered Fan Coil Unit Controllers in the Excel 10 product line. They cover a wide range of fan coil control applications. 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 inteerlock features make the W7752 especially suitable for systems using electric heat and compressors.