Replacing the DC disconnector ................................................................................................................. 121
Preparation ........................................................................................................................................... 121
Replacing the DC disconnector ............................................................................................................ 121
Final Tasks............................................................................................................................................ 123
Replacing the external fan ......................................................................................................................... 124
Preparation ........................................................................................................................................... 124
Replacing the external fan .................................................................................................................... 124
Final Tasks............................................................................................................................................ 129
Replacing the internal fan .......................................................................................................................... 130
Preparation ........................................................................................................................................... 130
Replacing the internal fan ..................................................................................................................... 130
Final Tasks............................................................................................................................................ 131
Preparation ........................................................................................................................................... 132
Replacing the Datamanager Card ........................................................................................................ 132
Final Tasks............................................................................................................................................ 132
Replacing the RECERBO display PC board......................................................................................... 134
Preparation ........................................................................................................................................... 136
Replacing the PrimoFIL filter PC board ................................................................................................ 136
Final Tasks............................................................................................................................................ 138
Preparation ........................................................................................................................................... 139
Replacing the PrimoPS power PC board.............................................................................................. 139
Final Tasks............................................................................................................................................ 142
Replacing other components ..................................................................................................................... 143
Replacing other components ................................................................................................................ 143
Safety inspection........................................................................................................................................ 147
Safety Inspection .................................................................................................................................. 147
Responsibility........................................................................................................................................ 147
Scope of Application ............................................................................................................................. 147
Measuring Instruments ......................................................................................................................... 147
Visual inspection ........................................................................................................................................ 149
General ................................................................................................................................................. 149
Housing and Covers ............................................................................................................................. 149
Electrical Tests........................................................................................................................................... 150
Insulation Resistance............................................................................................................................ 150
Ground conductor discharge................................................................................................................. 151
Ground conductor current ..................................................................................................................... 152
Contact Current..................................................................................................................................... 154
Finally......................................................................................................................................................... 155
General ................................................................................................................................................. 155
Visual Inspection................................................................................................................................... 155
Functional tests.......................................................................................................................................... 156
Function ................................................................................................................................................ 156
Grid switch-on/off devices..................................................................................................................... 156
Documentation........................................................................................................................................... 157
Documentation...................................................................................................................................... 157
82
145
159