BUSCH COBRA NC 1000 B Instruction Manual
Dry screw vacuum pumps
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Summary of Contents for BUSCH COBRA NC 1000 B
- Page 1 COBRA Dry Screw Vacuum Pumps NC 1000 B Water-Cooled Version (WCV) Instruction Manual 0870551589 | A0004_en-US | Original instructions 11/22/2022...
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Page 2: Table Of Contents
Maintenance Schedule ............................Oil Level Inspection............................. Cooling Liquid Level Inspection......................... Replacing the Gas Ballast Filter (Optional)....................... Oil Change................................Cooling Liquid Change ............................Overhaul................................Decommissioning..............................10.1 Dismantling and Disposal ..........................Spare Parts................................2 | 40 Instruction Manual COBRA NC 1000 B WCV_EN_en... - Page 3 Table of Contents Troubleshooting..............................Technical Data ..............................Cooling Liquid............................... Oil ................................... EU Declaration of Conformity..........................UK Declaration of Conformity ..........................Instruction Manual COBRA NC 1000 B WCV_EN_en 3 | 40...
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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
Magnetic plug Motor terminal box Nameplate Oil drain plug Oil fill plug Oil sight glass Plate heat exchanger Plug for manual rotation of rotors Silencer Safety valve Thermometer Resistance thermometer Instruction Manual COBRA NC 1000 B WCV_EN_en 5 | 40... -
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, see Technical Data. -
Page 7: Start Controls
A silencer at the discharge connection (OUT) can be provided to reduce the exhaust gas noise. 2.5.3 Barrier Gas System The barrier gas system allows the supply of compressed air or nitrogen into the motor side shaft seals in order to improve the sealing efficiency. Instruction Manual COBRA NC 1000 B WCV_EN_en 7 | 40... -
Page 8: Mechanical Seals
● Oil lubricated single mechanical seals on the motor side and labyrinth seals on the suction side. ● Oil lubricated single mechanical seals on the motor side and suction side. 8 | 40 Instruction Manual COBRA NC 1000 B WCV_EN_en... -
Page 9: Transport
● To find out the weight of the machine, refer to the chapter Technical Data or the nameplate (NP). ● Check the machine for transport damage. If the machine is secured to a base plate: ● Remove the machine from the base plate. Instruction Manual COBRA NC 1000 B WCV_EN_en 9 | 40... -
Page 10: Storage
Use the standard pump oil, see chapter Oil [➔ 37]. ● Before restarting the machine, drain the oil to the normal oil level, see “Oil draining” in chapter Oil Change [➔ 26]. 10 | 40 Instruction Manual COBRA NC 1000 B WCV_EN_en... -
Page 11: Installation
● Make sure that the cooling water complies with the requirements, see Cooling Water Connection [➔ 13]. 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. Connecting Lines / Pipes ●... -
Page 12: Suction Connection
● Install a suitable filter (5 micron or less) upstream from the machine. Connection size(s): – 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 NOTICE Discharge gas flow obstructed. -
Page 13: Cooling Water Connection
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) Instruction Manual COBRA NC 1000 B WCV_EN_en 13 | 40... -
Page 14: Barrier Gas System Connection (Optional)
Recommended pressure setting at the pres- bar(a) sure regulating valve (PRV) Filtration µm Recommended flow rate SLM (standard li- ter per minute) Air quality (only for air) Acc. to ISO Class 5.4.4. 8573-1 14 | 40 Instruction Manual COBRA NC 1000 B WCV_EN_en... -
Page 15: 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 and Oil [➔ 37]. Instruction Manual COBRA NC 1000 B WCV_EN_en... -
Page 16: Filling Cooling Liquid
If there is no sticker (part no. 0565 568 959) on the machine: ● Order it from your Busch representative. Filling Cooling Liquid For cooling liquid type and cooling liquid capacity see Technical Data and Cooling Liquid [➔ 36]. 16 | 40 Instruction Manual COBRA NC 1000 B WCV_EN_en... -
Page 17: Fitting The Coupling
For further coupling information, go to www.ktr.com and download the instruction manual of the RO- ® coupling. English German French Instruction Manual - English Instruction Manual - German Instruction Manual - French Instruction Manual COBRA NC 1000 B WCV_EN_en 17 | 40... -
Page 18: Electrical Connection
● If the machine is equipped with a power connector, install a residual current protective device to protect persons in case of isolation default. ● Busch recommends installing a type B residual protective device suitable for the electrical in- stallation. -
Page 19: Wiring Diagram Three-Phase Motor (Pump Drive)
Risk of damage to the machine! ● Operation in the wrong direction of rotation can destroy the machine in a short time! Prior to start-up, ensure that the machine is operated in the right direction. Instruction Manual COBRA NC 1000 B WCV_EN_en 19 | 40... -
Page 20: Electrical Connection Of The Monitoring Devices
● Switch any two of the motor phase wires. 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 20 seconds. 6.3.1 Wiring Diagram Resistance Thermometer Part no.: 0651 552 252... -
Page 21: Commissioning
● Make sure that the maximum permissible number of starts does not exceed 6 starts per hour. Those starts should be spread within the hour. ● Make sure that the operating conditions comply with the Technical Data. Instruction Manual COBRA NC 1000 B WCV_EN_en 21 | 40... -
Page 22: Conveying Condensable Vapors
● Close the gas ballast valve* or the dilution gas system* (solenoid valve) * optional accessories ● Continuously drain condensate from the condensate drain plug (CD) of the silencer (SI) (Optional). 22 | 40 Instruction Manual COBRA NC 1000 B WCV_EN_en... -
Page 23: Maintenance
Risk of injuries! Risk of premature failure and loss of efficiency! ● Maintenance work must only be executed by qualified personnel. ● Respect the maintenance intervals or ask your Busch representative for service. NOTICE Using inappropriate cleaners. Risk of removing safety stickers and protective paint! ●... -
Page 24: Maintenance Schedule
● Change the cooling liquid, see Cooling Liquid Change [➔ 29]. ● Clean the magnetic plugs (MP). Every 16000 hours or after 4 ● Have a major overhaul on the machine (contact Busch). years Oil Level Inspection ● Shut down the machine. -
Page 25: Cooling Liquid Level Inspection
● Fill up if necessary, see Filling Cooling Liquid [➔ 16]. Replacing the Gas Ballast Filter (Optional) Description Discard the used part Gas ballast filter - Part No. 0562 550 434 (Busch genuine spare part) Instruction Manual COBRA NC 1000 B WCV_EN_en 25 | 40... -
Page 26: Oil Change
NOTICE Use of an inappropriate oil. Risk of premature failure! Loss of efficiency! ● Only use an oil type which has previously been approved and recommended by Busch. Description Magnetic plug 26 | 40 Instruction Manual COBRA NC 1000 B WCV_EN_en... - Page 27 Maintenance | 8 Description Magnetic plug For oil type and oil capacity see Technical Data and Oil [➔ 37]. Instruction Manual COBRA NC 1000 B WCV_EN_en 27 | 40...
- Page 28 __ / __ / ____ Oil type see nameplate Change interval see instruction manual If there is no sticker (part no. 0565 568 959) on the machine: ● Order it from your Busch representative. 28 | 40 Instruction Manual COBRA NC 1000 B WCV_EN_en...
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Page 29: Cooling Liquid Change
Maintenance | 8 Cooling Liquid Change Description Funnel or liquid deflector Funnel or liquid deflector For cooling liquid type and cooling liquid capacity see Technical Data and Cooling Liquid [➔ 36]. Instruction Manual COBRA NC 1000 B WCV_EN_en 29 | 40... -
Page 30: Overhaul
● Decontaminate the machine as much as possible and state the contamination status in a ‘Dec- laration of Contamination’. Busch will only accept machines that come with a completely filled in and legally binding signed ‘Declaration of Contamination’ (form downloadable from www.buschvacuum.com). -
Page 31: Decommissioning
● Make sure that no cooling liquid drips onto the floor. ● Separate special waste from the machine. ● Dispose of special waste in compliance with applicable regulations. ● Dispose of the machine as scrap metal. Instruction Manual COBRA NC 1000 B WCV_EN_en 31 | 40... -
Page 32: Spare Parts
Risk of premature failure! Loss of efficiency! ● The exclusive use of Busch genuine spare parts and consumables is recommended for the correct functioning of the machine and to validate the warranty. There are no standard spare parts kits available for this product. -
Page 33: Troubleshooting
The machine runs in the wrong ● Check the direction of rota- direction. tion, see Wiring Diagram Three-Phase Motor. Internal parts are worn or ● Repair the machine (contact damaged. Busch). Instruction Manual COBRA NC 1000 B WCV_EN_en 33 | 40... - Page 34 Oil Change [➔ 26]. The machine runs too hot. ● See problem "The machine runs too hot". For resolution of problems not listed in the troubleshooting table, please contact your Busch repre- sentative. 34 | 40 Instruction Manual COBRA NC 1000 B WCV_EN_en...
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Page 35: Technical Data
30 °C Ambient pressure Atmospheric pressure Cooling water requirements See Cooling Water Connection [➔ 13] Oil capacity - motor side Oil capacity - suction side Cooling liquid capacity approx. Weight approx. 1500 Instruction Manual COBRA NC 1000 B WCV_EN_en 35 | 40... -
Page 36: Cooling Liquid
0831 563 469 Part number 20 L packaging 0831 238 761 The cooling liquid Zitrec M-25 is ready-to-use and does not require additional water. For further information, consult the website www.arteco-coolants.com. 36 | 40 Instruction Manual COBRA NC 1000 B WCV_EN_en... -
Page 37: Oil
Oil | 15 VSC 100 ISO-VG Part number 1 L packaging 0831 168 356 Part number 5 L packaging 0831 168 357 Instruction Manual COBRA NC 1000 B WCV_EN_en 37 | 40... -
Page 38: Eu Declaration Of Conformity
EU Declaration of Conformity This Declaration of Conformity and the CE-markings affixed to the nameplate are valid for the machine within the Busch scope of delivery. This Decla- ration of Conformity is issued under the sole responsibility of the manufacturer. -
Page 39: Uk Declaration Of Conformity
UK Declaration of Conformity This Declaration of Conformity and the UKCA-markings affixed to the nameplate are valid for the machine within the Busch scope of delivery. This Dec- laration of Conformity is issued under the sole responsibility of the manufacturer. - Page 40 With a network of over 60 companies in more than 40 countries and agencies worldwide, Busch has a global presence. In every country, highly competent local personnel delivers custom-tailored support backed by a global network of expertise. Wherever you are.
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