Title: +038=360.012-#####._06-BA-ESR NI-DV Controller Nicotra Gebhardt - Operating Instruction.pdf
Direct earthing or TN or TT system earthing can be used for supplementary protection.WarningNI-DV must always be supplementary protected with an earthing wire connected to the protective earth terminal (PE). If an RCD/HPFI (TT system) is used, it must be specifically intended forNI-DV must always be supplementary protected with an earthing wire connected to the protective earth terminal (PE). If an RCD/HPFI (TT system) is used, it must be specifically intended forDE-11/36DE-12/363.4.5. Potential equalisationThere is a risk of electrical interference if the ground potential between the NI-DV and the air handling unit or duct differ from each other. In the event of potential differences between system components, an equalisation conductor must always be fitted.WarningRecommended cable cross section: 10 mm². • Lugs should be used, and the equalisation conductor should be attached to the NI-DV enclosure via one of the screws used to mechanically install the unit.