BUSCH COBRA - Table of Contents

Table of Contents
2 | 52 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 Intended Use ....................................................................................................................................................... 6
2.3 Start Controls....................................................................................................................................................... 7
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........................................................................................................................................... 7
2.5.1 Silencer................................................................................................................................................... 7
2.5.2 Vibration Diagnostic Unit..................................................................................................................... 7
2.5.3 Mechanical Seals................................................................................................................................... 8
3 Transport .............................................................................................................................................................. 9
4 Storage .................................................................................................................................................................. 11
5 Installation ........................................................................................................................................................... 12
5.1 Installation Conditions........................................................................................................................................ 12
5.2 Connecting Lines / Pipes .................................................................................................................................... 12
5.2.1 Suction Connection............................................................................................................................... 13
5.2.2 Discharge Connection .......................................................................................................................... 13
5.2.3 Cooling Water Connection................................................................................................................... 14
5.2.4 Barrier Gas System Connection .......................................................................................................... 15
5.3 Filling Oil............................................................................................................................................................... 16
5.4 Filling Cooling Liquid........................................................................................................................................... 18
5.5 Fitting the Coupling ............................................................................................................................................ 19
6 Electrical Connection........................................................................................................................................... 20
6.1 Machine delivered without Variable Speed Drive ........................................................................................... 20
6.2 Wiring Diagram Three-Phase Motor (Pump Drive)......................................................................................... 21
6.3 Electrical Connection of the Cooling Liquid Pump.......................................................................................... 22
6.3.1 Wiring Diagram Cooling Liquid Pump................................................................................................ 23
6.4 Electrical Connection of the Monitoring Devices ............................................................................................ 24
6.4.1 Wiring Diagram Resistance Thermometer ........................................................................................ 24
6.4.2 Wiring Diagram Vibration Diagnostic Unit ........................................................................................ 24
7 Commissioning..................................................................................................................................................... 26
7.1 Recommendations on Operation...................................................................................................................... 27
7.1.1 Operating Frequency............................................................................................................................ 27
7.1.2 Stop & Start............................................................................................................................................ 27
7.1.3 Use with Argon...................................................................................................................................... 27
7.2 Conveying Condensable Vapors........................................................................................................................ 27
8 Maintenance......................................................................................................................................................... 28
8.1 Maintenance Schedule ....................................................................................................................................... 29
8.2 Oil Level Inspection............................................................................................................................................. 30
8.3 Cooling Liquid Level Inspection......................................................................................................................... 30
8.4 Oil Change............................................................................................................................................................ 31
8.5 Cooling Liquid Change ....................................................................................................................................... 34
8.6 Calibration Procedure of the Electrical Devices .............................................................................................. 38