Xylem LOWARA e-SV Series, Installation, Operation And Maintenance Manual

Page: 3 / 48

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