BUSCH COBRA NX 0450 A, Instruction Manual

Page: 2 / 40

Table of Contents
2 | 40 Instruction Manual COBRA NX 0450-0650 A 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 Temperature Switch ............................................................................................................................. 7
2.4.3 Sealing Systems..................................................................................................................................... 7
2.5 Optional Accessories........................................................................................................................................... 7
2.5.1 Gas Ballast Valve ................................................................................................................................... 7
2.5.2 Silencer................................................................................................................................................... 7
2.5.3 Barrier Gas System ............................................................................................................................... 7
3 Transport .............................................................................................................................................................. 8
4 Storage .................................................................................................................................................................. 9
5 Installation ........................................................................................................................................................... 10
5.1 Installation Conditions........................................................................................................................................ 10
5.2 Connecting Lines / Pipes .................................................................................................................................... 11
5.2.1 Suction Connection............................................................................................................................... 11
5.2.2 Discharge Connection .......................................................................................................................... 12
5.2.3 Cooling Water Connection................................................................................................................... 13
5.2.4 Barrier Gas System Connection (Optional) ........................................................................................ 14
5.3 Filling Oil............................................................................................................................................................... 15
6 Electrical Connection........................................................................................................................................... 17
6.1 Machine delivered without Variable Speed Drive ........................................................................................... 17
6.2 Machine delivered with a Variable Speed Drive (Option)............................................................................... 19
6.3 Wiring Diagram Three-Phase Motor (Pump Drive)......................................................................................... 20
6.4 Electrical Connection of the Monitoring Devices ............................................................................................ 21
6.4.1 Wiring Diagram Temperature Switch................................................................................................. 21
7 Commissioning..................................................................................................................................................... 22
7.1 Conveying Condensable Vapors........................................................................................................................ 22
8 Maintenance......................................................................................................................................................... 24
8.1 Maintenance Schedule ....................................................................................................................................... 25
8.2 Oil Level Inspection............................................................................................................................................. 26
8.3 Cleaning the Inlet Screen ................................................................................................................................... 26
8.4 Cleaning the Gas Ballast Filter (Optional)......................................................................................................... 27
8.5 Oil Change............................................................................................................................................................ 27
9 Overhaul................................................................................................................................................................ 30
10 Decommissioning................................................................................................................................................. 31
10.1 Dismantling and Disposal .................................................................................................................................. 31
11 Spare Parts............................................................................................................................................................ 32
12 Troubleshooting................................................................................................................................................... 33
13 Technical Data...................................................................................................................................................... 35
14 Oil........................................................................................................................................................................... 36
15 EU Declaration of Conformity............................................................................................................................. 37