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BUSCH COBRA NC 1000 B Instruction Manual

Dry screw vacuum pumps
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Instruction Manual
COBRA
Dry Screw Vacuum Pumps
NC 1000 B (water-cooled version)
Ateliers Busch S.A.
Zone industrielle, 2906 Chevenez
Switzerland
0870551589/A0001_en / Original instructions / Modifications reserved
29/09/2017

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  • Page 1 All manuals and user guides at all-guides.com Instruction Manual COBRA Dry Screw Vacuum Pumps NC 1000 B (water-cooled version) Ateliers Busch S.A. Zone industrielle, 2906 Chevenez Switzerland 0870551589/A0001_en / Original instructions / Modifications reserved 29/09/2017...

  • Page 2: Table Of Contents

    All manuals and user guides at all-guides.com Table of Contents Table of Contents 1 Safety........................... 4 2 Product Description ..................... 5 2.1 Operating Principle....................6 2.2 Application ......................6 2.3 Standard Features....................6 2.3.1 Water Cooling ..................6 2.3.2 Resistance Thermometer................6 2.3.3 Level Switch....................7 2.3.4 Thermometer.....................7 2.3.5 Sealing Systems ..................7...
  • Page 3 All manuals and user guides at all-guides.com Table of Contents 13 Cooling Liquid ......................28 14 Oil ..........................28 15 EU Declaration of Conformity ..................29 0870551589_NC1000B_WCV_A0001_IM_en...

  • Page 4: Safety

    Safety Prior to handling the machine, this instruction manual should be read and understood. If anything needs to be clarified, please contact your Busch representative. Read this manual carefully before use and keep for future reference. This instruction manual remains valid as long as the customer does not change anything on the product.

  • Page 5: Product Description

    All manuals and user guides at all-guides.com Product Description | 2 Product Description Condensate drain Cooling liquid drain plug Cooling liquid fill plug Cooling liquid sight glass Cooling liquid pump Cooling water inlet Cooling water outlet Eye bolt Gas ballast valve Suction connection Level switch Magnetic plug...

  • Page 6: Operating Principle

    Conveying of other media leads to an increased thermal and/or mechanical load on the machine and is permissible only after a consultation with Busch. The machine is intended for the placement in a non-potentially explosive environment. The machine is capable of maintaining ultimate pressure.

  • Page 7: Level Switch

    All manuals and user guides at all-guides.com Product Description | 2 2.3.3 Level Switch The level switch monitors the cooling liquid level in the cylinder. The machine must be stopped when the cooling liquid level is too low. 2.3.4 Thermometer The thermometer allows a visual display of the cooling liquid temperature.

  • Page 8: Transport

    All manuals and user guides at all-guides.com 3 | Transport Transport WARNING Suspended load. Risk of severe injury! • Do not walk, stand or work under suspended loads. NOTICE In case the machine is already filled with oil. Tilting a machine that is already filled with oil can cause large quantities of oil to in- gress into the cylinder.

  • Page 9: Installation

    • Make sure that the cooling water complies with the requirements, see Cooling Water Connection [► 10]. If the machine is installed at an altitude greater than 1000 meters above sea level: • Contact your Busch representative, the motor should be derated or the ambient temperature limited. 5.2 Connecting Lines / Pipes •...

  • Page 10: Discharge Connection

    Connection size: – DN125 PN16, EN 1092-1 If the machine is used as part of a vacuum system: • Busch recommends the installation of an isolation valve in order to prevent the machine from turning backwards. 5.2.2 Discharge Connection Connection size: At the machine discharge connection: –...

  • Page 11: Barrier Gas System Connection (Optional)

    All manuals and user guides at all-guides.com Installation | 5 Particle size µm < 200 Chloride mg/l < 100 Electrical conductivity µS/cm ≤ 100 Free chloride mg/l < 0.3 Materials in contact with the cooling water Stainless steel NOTE Water hardness unit conversion. 1 mg/l (ppm) = 0.056 °dh (german degree) = 0.07 °e (english degree) = 0.1 °fH (french degree) 5.2.4 Barrier Gas System Connection (Optional)

  • Page 12: Filling Oil

    Risk of premature failure! Loss of efficiency! • Only use an oil type which has previously been approved and recommended by Busch. For oil type and oil capacity see Technical Data [► 28] and Oil [► 28]. Oil filling at the motor side...
  • Page 13 • Write down the oil change date on the sticker. Last oil change __ / __ / ____ Oil type see nameplate Change interval see instruction manual If there is no sticker on the pump: • Order it from your Busch representative. 0870551589_NC1000B_WCV_A0001_IM_en 13 / 32...

  • Page 14: Filling Cooling Liquid

    • Provide overload protection according to EN 60204-1 for the motor. • Make sure that the motor of the machine will not be affected by electric or electro- magnetic disturbance from the mains; if necessary seek advice from Busch. • Connect the protective earth conductor.

  • Page 15: Wiring Diagram Three-Phase Motor (Pump Drive)

    All manuals and user guides at all-guides.com Installation | 5 NOTICE The admissible motor nominal speed exceeds the recommendation. Risk of damage to the machine! • Check the admissible motor nominal speed (n ) on the nameplate of the machine (NP).

  • Page 16: Electrical Connection Of The Monitoring Devices

    • Switch any two of the motor phase wires. 5.6 Electrical Connection of the Monitoring Devices NOTE In order to prevent potential nuisance alarms, Busch recommends that the control system is configured with a time delay of at least 10 seconds. 5.6.1 Wiring Diagram Resistance Thermometer Part no.: 0651 552 252...

  • Page 17: Conveying Condensable Vapours

    All manuals and user guides at all-guides.com Commissioning | 6 CAUTION During operation the surface of the machine may reach temperatures of more than 70°C. Risk of burns! • Avoid contact with the machine during and directly after operation. CAUTION Noise of running machine.

  • Page 18: Maintenance

    • Check the cooling liquid level, see Cooling Liquid Level Inspection [► 19]. • Check the machine for oil leaks - in case of leaks have the machine repaired (contact Busch). Yearly • Carry out a visual inspection and clean the machine from dust and dirt.

  • Page 19: Oil Level Inspection

    Every 16000 hours, at the • Have a major overhaul on the machine (contact latest after 4 years Busch). 7.2 Oil Level Inspection • Shut down the machine. • When the machine is stopped, wait 1 minute before checking the oil level.

  • Page 20: Replacing The Gas Ballast Filter (Optional)

    All manuals and user guides at all-guides.com 7 | Maintenance 7.4 Replacing the Gas Ballast Filter (Optional) Busch genuine spare parts Gas ballast filter: part no. 0562 550 434 Discard the part 7.5 Oil Change NOTICE Use of an inappropriate oil.
  • Page 21 All manuals and user guides at all-guides.com Maintenance | 7 Oil draining at the motor side Cleaning cloth Magnetic plug Drain pan Oil draining at the suction side Cleaning cloth Magnetic plug Drain pan 0870551589_NC1000B_WCV_A0001_IM_en 21 / 32...
  • Page 22 All manuals and user guides at all-guides.com 7 | Maintenance For oil type and oil capacity see Technical Data [► 28] and Oil [► 28]. Oil filling at the motor side Check oil level Oil filling at the suction side Check oil level When the oil filling is achieved: •...

  • Page 23: Cooling Liquid Change

    __ / __ / ____ Oil type see nameplate Change interval see instruction manual If there is no sticker on the pump: • Order it from your Busch representative. 7.6 Cooling Liquid Change Funnel or liquid deflector Funnel or liquid deflector...

  • Page 24: Overhaul

    Risk of premature failure! Loss of efficiency! • It is highly recommended that any dismantling of the machine that goes beyond any- thing that is described in this manual should be done through Busch. WARNING Machines contaminated with hazardous material.

  • Page 25: Decommissioning

    • The exclusive use of Busch genuine spare parts and consumables is recommended for the proper function of the machine and for granting of warranty. There is no standard spare parts kits available for this product, if you require Busch gen- uine parts: •...

  • Page 26: Troubleshooting

    Busch). Solid foreign matter has • Remove the solid foreign entered the machine. matter or repair the ma- chine (contact Busch). • Install an inlet filter if ne- cessary. The resistance thermometer • Let the machine cool (TSA) reached the switch down.
  • Page 27 Oil Change [► 20]. The machine runs too hot. • See problem "The ma- chine runs too hot". For the solution of problems not mentioned in the troubleshooting chart contact your Busch representative. 0870551589_NC1000B_WCV_A0001_IM_en 27 / 32...

  • Page 28: Technical Data

    All manuals and user guides at all-guides.com 12 | Technical Data 12 Technical Data NC 1000 B Pumping speed m³/h 840 / 1000 (50Hz / 60Hz) Ultimate pressure (without gas ballast) hPa (mbar) abs. ≤0.5 / ≤0.1 (50Hz / 60Hz) Ultimate pressure (with gas ballast) hPa (mbar) abs.
  • Page 29 This Declaration of Conformity and the CE-mark affixed to the nameplate are valid for the machine within the Busch scope of delivery. This Declaration of Conformity is issued under the sole responsibility of the manufacturer. When this machine is integrated into a superordinate machinery the manufacturer of the superordinate machinery (this can be the operating company, too) must conduct the conformity assessment process for the superordinate machine or plant, issue the Declaration of Conformity for it and affix the CE-mark.
  • Page 30 All manuals and user guides at all-guides.com Note...
  • Page 31 All manuals and user guides at all-guides.com Note...
  • Page 32 Czech Republic Netherlands Turkey www.buschvacuum.cz www.busch.nl www.buschvacuum.com Denmark New Zealand United Arab Emirates www.busch.dk www.busch.com.au www.busch.ae Finland Norway United Kingdom www.busch.fi www.busch.no www.busch.co.uk France Peru www.busch.fr www.busch.com.pe www.buschusa.com Germany Poland www.busch.de www.busch.com.pl www.buschvacuum.com 0870551589/A0001_en / © Ateliers Busch S.A.

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