Xylem LOWARA e-SV Series - Page 3

en – Translation of the Original Instructions
e-SV series – Additional Installation, Operation and Maintenance Instructions 3
4.5.4 Guidelines for the motor ............................................................................................................................ 26
4.5.5 Operation with frequency converter ......................................................................................................... 28
5 Use and operation .................................................................................................................................................. 29
5.1 Precautions ..................................................................................................................................................... 29
5.2 Filling - Priming .............................................................................................................................................. 30
5.2.1 Positive suction head installation .............................................................................................................. 30
5.2.2 Suction lift installation ................................................................................................................................ 30
5.3 Rotation sense check (three-phase motors) .................................................................................................. 31
5.3.1 Wrong rotation direction ........................................................................................................................... 32
5.4 Start-up ........................................................................................................................................................... 32
5.5 Stopping ......................................................................................................................................................... 33
6 Maintenance ............................................................................................................................................................ 34
6.1 Precautions ..................................................................................................................................................... 34
6.2 Maintenance every 4000 hours of operation, or every year ........................................................................ 34
6.3 Long periods of inactivity ............................................................................................................................... 34
6.4 Tightening torques of the threaded connections ......................................................................................... 35
6.5 Spare parts ordering ...................................................................................................................................... 35
7 Troubleshooting...................................................................................................................................................... 36
7.1 Precautions ..................................................................................................................................................... 36
7.2 The unit does not start ................................................................................................................................... 36
7.3 The differential protection device (RCD) is activated ................................................................................... 36
7.4 The thermal overload protection triggers or the fuses trip .......................................................................... 36
7.5 The thermal overload protection triggers ..................................................................................................... 37
7.6 The motor becomes excessively hot ............................................................................................................. 37
7.7 The unit runs but there is little or no flow rate .............................................................................................. 37
7.8 When switched off, the unit turns in the opposite direction ........................................................................ 37
7.9 The unit produces excessive noise and/or vibrations .................................................................................. 38
7.10 The unit starts up too frequently (automatic start/stop) ............................................................................... 38
7.11 The unit never stops (automatic start/stop) .................................................................................................. 38
7.12 The unit is leaking .......................................................................................................................................... 39
7.13 The frequency converter is in error mode or turned off ............................................................................... 39
8 Technical Information ............................................................................................................................................. 40
8.1 Operating environment ................................................................................................................................. 40
8.2 Temperature of pumped liquid ..................................................................................................................... 40
8.3 Maximum head ............................................................................................................................................... 40
8.4 Maximum operating pressure ....................................................................................................................... 44
8.5 Maximum number of starts per hour ............................................................................................................. 45
8.6 Protection class............................................................................................................................................... 45
8.7 Electrical specifications .................................................................................................................................. 46
8.8 Sound pressure .............................................................................................................................................. 46
8.9 Materials in contact with the liquid ............................................................................................................... 46
8.10 Mechanical seal .............................................................................................................................................. 47