Zenit DGN 250/2/G65V A1DM/50 Manuel D'utilisation Et D'entretien page 13

E N G L I S H
E N G L I S H
1 GENERAL SAFETY REGULATIONS ..................................................................................................................................... 12
1.1 LIST OF RESIDUAL RISKS .................................................................................................................................................... 12
1.2 SAFETY REGULATIONS APPLYING TO INSTALLATION AND MAINTENANCE OPERATIONS ........................................ 12
1.3 INDIVIDUAL PROTECTIVE DEVICES (IPD) TO BE USED ................................................................................................... 13
2 DEVICE IDENTIFICATION ..................................................................................................................................................... 13
2.1 ATEX MARKING (potentially explosive environment) ............................................................................................................. 13
2.2 PLATE .................................................................................................................................................................................... 13
3 TECHNICAL CHARACTERISTICS ......................................................................................................................................... 13
3.1 OPERATING CONDITIONS ................................................................................................................................................... 14
3.2 LIQUIDS TREATED ................................................................................................................................................................ 14
3.3 NOISE LEVEL ......................................................................................................................................................................... 14
4 INSTALLATION ...................................................................................................................................................................... 14
4.1 SHIPPING ............................................................................................................................................................................... 14
4.2 PLACEMENT .......................................................................................................................................................................... 14
4.2.1 INSTALLATION WITH COUPLING FOOT .............................................................................................................................. 15
4.2.2 DRY INSTALLATION WITH COOLING JACKET .................................................................................................................... 15
4.2.3 PUMP INLET .......................................................................................................................................................................... 15
4.3 CONNECTION TO THE POWER MAINS AND DETERMINATION OF THE ROTATION DIRECTION .................................. 15
4.4 INSTALLATION OF FLOATING SWITCHES .......................................................................................................................... 15
5 MAINTENANCE ...................................................................................................................................................................... 16
5.1 OIL CHECK AND CHANGE IN THE MECHANICAL SEAL CHAMBER .................................................................................. 17
5.2 CHECKING PARTS SUBJECT TO WEAR ............................................................................................................................. 17
5.3 CHECKING THE BEARINGS ................................................................................................................................................. 17
5.4 COUPLING PARTS ................................................................................................................................................................ 17
5.5 MAIN PARTS .......................................................................................................................................................................... 17
5.5.1 COOLING JACKET ................................................................................................................................................................. 17
5.5.2 MECHANICAL SEALS ............................................................................................................................................................ 17
5.5.3 TIGHTENING THE ROTOR (2 poles) .................................................................................................................................... 17
5.5.4 PUMP BODY (2/poles) ........................................................................................................................................................... 17
6 MINOR PROBLEMS: CAUSES AND SOLUTIONS ................................................................................................................ 18
7 DISPOSING OF ELECTRIC PUMPS ...................................................................................................................................... 18
8 ELECTRICAL CONNECTIONS .............................................................................................................................................. 18
8.1 SINGLE-PHASE ELECTRICAL CONNECTION ..................................................................................................................... 18
8.2 THREE-PHASE ELECTRICAL CONNECTION ...................................................................................................................... 18
8.3 THERMAL PROBES ............................................................................................................................................................... 18
8.4 CONDUCTIVITY PROBES ..................................................................................................................................................... 18
This symbol indicates instructions concerning the safety of operators and of the electric pump
This symbol indicates instructions concerning risks of electric shocks
This symbol indicates instructions applicable to explosion-proof models (-EX)
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