Xylem LOWARA e-SV Series - Page 3

en - Original instructions
e-SV series - Installation, Operation and Maintenance Manual 3
5.1 Precautions ...................................................................................................................................................... 26
5.2 Filling - Priming ............................................................................................................................................... 27
5.2.1 Positive suction head installation ............................................................................................................... 27
5.2.2 Suction lift installation ............................................................................................................................... 27
5.3 Checking the direction of rotation (three-phase motors) .............................................................................. 28
5.3.1 Wrong rotation direction ............................................................................................................................ 28
5.4 Start-up ........................................................................................................................................................... 29
5.5 Stopping ........................................................................................................................................................... 30
6 Maintenance ............................................................................................................................................................ 31
6.1 Precautions ...................................................................................................................................................... 31
6.2 Maintenance every 4000 hours of operation, or every year .......................................................................... 31
6.3 Long periods of inactivity ............................................................................................................................... 31
6.4 Tightening torques of the threaded connections ........................................................................................... 32
6.5 Ordering spare parts ....................................................................................................................................... 32
7 Troubleshooting ....................................................................................................................................................... 33
7.1 Precautions ...................................................................................................................................................... 33
7.2 The unit does not start ................................................................................................................................... 33
7.3 The differential protection device (RCD) is activated ................................................................................... 33
7.4 The thermal overload protection triggers or the fuses trip ........................................................................... 34
7.5 The thermal overload protection triggers ...................................................................................................... 34
7.6 The unit runs but there is little or no flow rate............................................................................................. 34
7.7 When switched off, the unit turns in the opposite direction ........................................................................ 35
7.8 The unit produces excessive noise and/or vibrations .................................................................................... 35
7.9 The unit starts up too frequently (automatic start/stop) ............................................................................. 35
7.10 The unit never stops (automatic start/stop) .................................................................................................. 35
7.11 The unit is leaking ........................................................................................................................................... 37
7.12 The motor becomes excessively hot ............................................................................................................... 37
7.13 The frequency converter is in error mode or turned off ............................................................................... 37
8 Technical Information .............................................................................................................................................. 38
8.1 Operating environment ................................................................................................................................... 38
8.2 Permitted liquid temperatures for the mechanical seal ................................................................................ 38
8.3 Maximum operating pressure .......................................................................................................................... 39
8.4 Maximum number of starts per hour .............................................................................................................. 39
8.5 Protection class ............................................................................................................................................... 40
8.6 Electrical specifications .................................................................................................................................. 40
8.7 Permitted tolerances for the supply voltage ................................................................................................. 40
8.8 Noise level ....................................................................................................................................................... 40
8.9 Materials in contact with the liquid ............................................................................................................... 41
8.10 Mechanical seal ............................................................................................................................................... 41
9 Disposal .................................................................................................................................................................... 42
9.1 Precautions ...................................................................................................................................................... 42
10 Declarations ........................................................................................................................................................ 43
10.1 Pump unit EC Declaration of Conformity (Original) ....................................................................................... 43