BUSCH COBRA ATEX NC 2500 B, Instruction Manual

Page: 2 / 44

Table of Contents
2 / 44 Instruction Manual COBRA NC 2500 B WCV_EN_en
Table of Contents
1 Safety ......................................................................................................................................4
2 Product Description...............................................................................................................5
2.1 Operating Principle.......................................................................................................... 6
2.2 Application....................................................................................................................... 6
2.3 Start Controls .................................................................................................................. 6
2.4 Standard Features .......................................................................................................... 7
2.4.1 Water Cooling....................................................................................................... 7
2.4.2 Cooling Gas Unit .................................................................................................. 7
2.4.3 Resistance Thermometer (Cooling Liquid) ........................................................... 7
2.4.4 Resistance Thermometer (Exhaust Gas) ............................................................. 7
2.4.5 Sealing Systems................................................................................................... 7
2.5 Optional Accessories ...................................................................................................... 8
2.5.1 Silencer ................................................................................................................ 8
2.5.2 Vibration Diagnostic Unit ...................................................................................... 8
2.5.3 Mechanical Seals ................................................................................................. 8
3 Transport ................................................................................................................................9
4 Storage....................................................................................................................................10
5 Installation ..............................................................................................................................11
5.1 Installation Conditions ..................................................................................................... 11
5.2 Connecting Lines / Pipes ................................................................................................ 11
5.2.1 Suction Connection .............................................................................................. 12
5.2.2 Discharge Connection .......................................................................................... 12
5.2.3 Cooling Water Connection ................................................................................... 13
5.2.4 Barrier Gas System Connection ........................................................................... 14
5.3 Filling Oil ......................................................................................................................... 14
5.4 Filling Cooling Liquid ....................................................................................................... 16
5.5 Fitting the Coupling ......................................................................................................... 17
5.6 Electrical Connection ...................................................................................................... 18
5.6.1 Wiring Diagram Three-Phase Motor (Pump Drive) .............................................. 19
5.7 Electrical Connection of the Cooling Liquid Pump .......................................................... 20
5.7.1 Wiring Diagram Cooling Liquid Pump .................................................................. 20
5.8 Electrical Connection of the Monitoring Devices ............................................................. 21
5.8.1 Wiring Diagram Resistance Thermometer ........................................................... 21
5.8.2 Wiring Diagram Vibration Diagnostic Unit ............................................................ 21
6 Commissioning ......................................................................................................................22
6.1 Recommendations on Operation .................................................................................... 23
6.1.1 Operating frequency ............................................................................................. 23
6.1.2 Stop & Start .......................................................................................................... 23
6.1.3 Use with Argon ..................................................................................................... 23
6.2 Conveying Condensable Vapours................................................................................... 24
7 Maintenance ...........................................................................................................................24
7.1 Maintenance Schedule.................................................................................................... 25
7.2 Oil Level Inspection ......................................................................................................... 26
7.3 Cooling Liquid Level Inspection ...................................................................................... 26
7.4 Oil Change ...................................................................................................................... 27
7.5 Cooling Liquid Change .................................................................................................... 30
8 Overhaul..................................................................................................................................34
9 Decommissioning ..................................................................................................................35
9.1 Dismantling and Disposal................................................................................................ 35