BUSCH COBRA NC 1000 B WCV Instruction Manual
Dry screw vacuum pumps
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Summary of Contents for BUSCH COBRA NC 1000 B WCV
- Page 1 COBRA Dry Screw Vacuum Pumps NC 1000 B WCV (Water Cooled Version) Instruction Manual 0870551589 | A0003_en | Original instructions 28/02/2022...
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Page 2: Table Of Contents
Table of Contents Table of Contents Safety..................................Product Description ............................. Operating Principle ............................. Application ................................Start Controls ............................... Standard Features............................... 2.4.1 Water Cooling............................2.4.2 Resistance Thermometer........................2.4.3 Level Switch ............................2.4.4 Thermometer ............................2.4.5 Sealing Systems............................. Optional Accessories............................2.5.1 Gas Ballast Valve ........................... 2.5.2 Silencer .............................. - Page 3 Table of Contents 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
Product Description | 2 Product Description 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 Motor terminal box Nameplate Oil drain 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, see Technical Data [➔ 32]. -
Page 7: Standard Features
Product Description | 2 Standard Features 2.4.1 Water Cooling The machine is cooled by a cooling liquid circuit in the cylinder cover and cylinder. The cooling liquid pump (CLP) allows a recirculating flow in the cooling liquid chamber. The cooling liquid is cooled by a plate heat exchanger (PHE) which must be connected to the water main. -
Page 8: Transport
3 | Transport Transport WARNING Suspended load. Risk of severe injury! ● Do not walk, stand or work under suspended loads. WARNING Lifting the machine using the motor eye bolt. Risk of severe injury! ● Do not lift the machine using the eye bolt fitted to the motor. Only lift the machine as shown. NOTICE In case the machine is already filled with oil. -
Page 9: Storage
Storage | 4 Storage ● Seal all apertures with adhesive tape or reuse provided caps. If the machine is to be stored for more than 3 months: ● Wrap the machine in a corrosion inhibiting film. ● Store the machine indoors, dry, dust free and if possible in original packaging preferably at temperatures between 5 ... -
Page 10: Installation
● Make sure that the cooling water complies with the requirements, see Cooling Water Connection [➔ 12]. 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. 10 | 40... -
Page 11: Connecting Lines / Pipes
● 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... -
Page 12: Cooling Water Connection
5 | Installation 5.2.3 Cooling Water Connection Description Cooling water inlet Cooling water outlet Plate heat exchanger ● Connect the cooling water connections (CWI / CWO) to the water supply. Connection size: – G1/2, ISO 228-1 (CWI / CWO) ● Make sure that the cooling water complies with the following requirements: Supply capacity l/min Water pressure... -
Page 13: Barrier Gas System Connection (Optional)
Installation | 5 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) Without nitrogen panel Description Barrier gas connection Flow meter Flow regulator Manometer Pressure regulating valve... -
Page 14: Filling Oil
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. For oil type and oil capacity see Technical Data [➔ 32] and Oil [➔ 34]. 14 | 40... -
Page 15: 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 [➔ 32] and Cooling Liquid [➔ 33]. -
Page 16: Fitting The Coupling
5 | Installation Fitting the Coupling Description Coupling hub (machine side) Coupling spider Coupling hub (motor side) Set screw; max. admissible torque: 10 Machine type Coupling size Value “E” (mm) NC 1000 B ROTEX ® In case of a machine delivery without motor: ●... -
Page 17: Wiring Diagram Three-Phase Motor (Pump Drive)
● Provide an 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 electromagnetic disturbance from the mains; if necessary seek advice from Busch. ● Connect the protective earth conductor. -
Page 18: 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. 5.7.1 Wiring Diagram Resistance Thermometer Part no.: 0651 552 252... -
Page 19: Commissioning
Commissioning | 6 Commissioning NOTICE The machine can be shipped without oil. Operation without oil will ruin the machine in short time! ● Prior to commissioning, the machine must be filled with oil, see Filling Oil [➔ 14]. NOTICE The machine can be shipped without cooling liquid. Operation without cooling liquid will ruin the machine in short time! ●... -
Page 20: Conveying Condensable Vapours
6 | Commissioning ● After a few minutes of operation, perform an Oil Level Inspection [➔ 22]. ● After a few minutes of operation, perform a Cooling Liquid Level Inspection [➔ 22]. As soon as the machine is operated under normal operating conditions: ●... -
Page 21: Maintenance
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. ● Shut down the machine and lock against inadvertent start up. -
Page 22: Oil Level Inspection
● Change the cooling liquid, see Cooling Liquid Change [➔ 26]. ● 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 23: Replacing The Gas Ballast Filter (Optional)
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. Instruction Manual COBRA NC 1000 B WCV_EN_en 23 | 40... - Page 24 7 | Maintenance For oil type and oil capacity see Technical Data [➔ 32] and Oil [➔ 34]. 24 | 40 Instruction Manual COBRA NC 1000 B WCV_EN_en...
- Page 25 __ / __ / ____ 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. Instruction Manual COBRA NC 1000 B WCV_EN_en 25 | 40...
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Page 26: Cooling Liquid Change
7 | Maintenance Cooling Liquid Change Description Funnel or liquid deflector Funnel or liquid deflector For cooling liquid type and cooling liquid capacity see Technical Data [➔ 32] and Cooling Liquid [➔ 33]. 26 | 40 Instruction Manual COBRA NC 1000 B WCV_EN_en... -
Page 27: Overhaul
● Decontaminate the machine as much as possible and state the contamination status in a ‘Declaration 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 28: Decommissioning
9 | Decommissioning Decommissioning CAUTION Hot surface. Risk of burns! ● Prior to any action requiring touching the machine, let the machine cool down first. ● Shut down the machine and lock against inadvertent start up. ● Disconnect the power supply. ●... -
Page 29: Spare Parts
● 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 is no standard spare parts kits available for this product, if you require Busch genuine parts: ● Contact your Busch representative. -
Page 30: Troubleshooting
Busch). Solid foreign matter has ● Remove the solid foreign entered the machine. matter or repair the machine (contact Busch). ● Install an inlet filter if necessary. The resistance thermometer ● Let the machine cool down. (TSA) reached the switch point. - Page 31 Oil Change [➔ 23]. The machine runs too hot. ● See problem "The machine runs too hot". For the solution of problems not mentioned in the troubleshooting chart contact your Busch representative. Instruction Manual COBRA NC 1000 B WCV_EN_en 31 | 40...
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Page 32: Technical Data
12 | Technical Data Technical Data NC 1000 B Pumping speed (50Hz / 60Hz) m³/h 840 / 1000 Ultimate pressure (without gas hPa (mbar) ≤0.5 / ≤0.1 ballast) (50Hz / 60Hz) abs. Ultimate pressure (with gas ballast) hPa (mbar) ≤0.5 / ≤0.5 (50Hz / 60Hz) abs. -
Page 33: Cooling Liquid
Cooling Liquid | 13 Cooling Liquid Zitrec M-25 (ready-to-use) Part number 5 L packaging 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. Instruction Manual COBRA NC 1000 B WCV_EN_en 33 | 40... -
Page 34: Oil
14 | Oil VSC 100 ISO-VG Part number 1 L packaging 0831 168 356 Part number 5 L packaging 0831 168 357 34 | 40 Instruction Manual COBRA NC 1000 B WCV_EN_en... -
Page 35: Eu Declaration Of Conformity
EU Declaration of Conformity | 15 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 Declaration of Conformity is issued under the sole responsibility of the manufacturer. -
Page 36: Uk Declaration Of Conformity
16 | 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 Declaration of Conformity is issued under the sole responsibility of the manufacturer. - Page 37 Notes Instruction Manual COBRA NC 1000 B WCV_EN_en 37 | 40...
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- Page 39 Instruction Manual COBRA NC 1000 B WCV_EN_en 39 | 40...
- 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.