The CUE is a frequency converter for Grundfos inline VLSC series pump that provide a series of predefined functions which make the converters easy to use in almost all application areas. A series of predefined control modes, such as constant pressure, proportional pressure, constant level or constant flow, makes it very easy to set up a system in only a few steps. A special start-up guide will lead you through the set-up of the CUE�

For technical information , pleased follow the link at https://us.grundfos.com/products/find-product/cue.html