BUSCH COBRA NC 0400 B WCV Instruction Manual
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Summary of Contents for BUSCH COBRA NC 0400 B WCV
- Page 1 COBRA Dry Screw Vacuum Pumps NC 0400 B WCV (Water Cooled Version) Instruction Manual 0870565283 | A0006_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 Temperature Switch ..........................2.4.3 Thermometer ............................2.4.4 Sealing Systems............................. Optional Accessories............................2.5.1 Inlet Filter ............................... 2.5.2 Gas Ballast Valve ........................... - Page 3 Table of Contents Oil Change................................Cooling Liquid Change ............................Overhaul................................Decommissioning..............................Dismantling and Disposal ..........................Spare Parts................................Troubleshooting..............................Technical Data ..............................Cooling Liquid............................... Oil ................................... EU Declaration of Conformity..........................UK Declaration of Conformity ..........................Instruction Manual COBRA NC 0400 B WCV_EN_en 3 | 44...
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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 PMR CLP 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 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 [➔ 38]. -
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: Nitrogen Panel
2 | Product Description 2.5.6 Nitrogen Panel The nitrogen panel fitted to the base frame allows the supply of nitrogen to a number of different points on the machine. Each device consists of a solenoid valve to open or close the gas circuit, a pressure regulator and a flow meter to adjust pressure and volume flow separately. -
Page 9: Transport
Transport | 3 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 10: Storage
4 | Storage 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 11: Installation
Installation | 5 Installation Installation Conditions WARNING If the machine is installed in a potentially explosive environment, or if the machine is used to draw toxic, inflammable or non-inert gases: Risk of injuries! Risk of death! ● Ensure that the machine complies with all local, national rules and safety regulations. NOTICE Use of the machine outside of the permitted installation conditions. -
Page 12: Connecting Lines / Pipes
If a purge gas system or a liquid flushing device being installed: – DN80 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. 12 | 44... -
Page 13: Discharge Connection
Installation | 5 5.2.2 Discharge Connection Connection size(s): At the machine discharge connection: – DN63 ISO-K, DIN 28404 – DN80 PN6, EN 1092-1 At the silencer (SI) discharge connection (two optional versions available): – DN80 PN16 + ANSI/ASME B16.5-3” class 150 lbs –... -
Page 14: Barrier Gas System Connection (Optional)
5 | Installation ● To reduce the maintenance effort and ensure a long product lifetime we recommend the following cooling water quality: Hardness mg/l (ppm) < 90 Properties Clean & clear PH value 7 ... 8 Particle size µm < 200 Chloride mg/l <... - Page 15 Installation | 5 With nitrogen panel FME, FS Description Barrier gas connection Flow meter Flow switch Manometer Solenoid valve Nitrogen panel Pressure regulating valve ● Connect the barrier gas connection (BGC) to the gas supply. Connection size: – G1/4, ISO 228-1 Version with nitrogen panel: ●...
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Page 16: Dilution Gas System Connection (Optional)
5 | Installation 5.2.5 Dilution Gas System Connection (Optional) FME, FR Description Dilution gas connection Flow meter Flow regulator Manometer Solenoid valve Nitrogen panel Pressure regulating valve ● Connect the dilution gas connection (DGC) to the gas supply. Connection size: –... -
Page 17: Purge Gas System Connection (Optional)
Installation | 5 5.2.6 Purge Gas System Connection (Optional) FME, FR Description Purge gas connection Flow meter Flow regulator Inlet flange Manometer Solenoid valve Nitrogen panel Pressure regulating valve ● Connect the purge gas connection to the gas supply. Connection size: –... -
Page 18: 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 [➔ 38] and Oil [➔ 40]. 18 | 44... -
Page 19: 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 [➔ 38] and Cooling Liquid [➔ 39]. -
Page 20: Liquid Flushing Device Installation (Optional)
5 | Installation Liquid Flushing Device Installation (Optional) Description Flushing liquid fill plug Flushing liquid vessel Flow regulator Inlet flange Level indicator Level switch Solenoid valve ● Electrically connect the solenoid valve (MV), see Wiring Diagram Solenoid Valve [➔ 23]. ● Electrically connect the two level switches (LS), see Wiring Diagram Level Switch [➔ 24]. ●... -
Page 21: Fitting The Coupling
Installation | 5 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 0400 B ROTEX ® ROTEX ® In case of a machine delivery without motor: ●... -
Page 22: 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 23: Wiring Diagram Solenoid Valve (Optional)
Installation | 5 Double star connection, multi-voltage motor Star connection, multi-voltage motor with 12 with 12 pins (low voltage): pins (high voltage): Delta connection, multi-voltage motor with 12 pins (middle voltage): NOTICE Incorrect direction of rotation. Risk of damage to the machine! ●... -
Page 24: Electrical Connection Of The Monitoring Devices
5 | Installation 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. 5.8.1 Wiring Diagram Temperature Switch Part no.: 0651 556 533 U = 250 VAC ;... -
Page 25: 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 [➔ 18]. NOTICE The machine can be shipped without cooling liquid. Operation without cooling liquid will ruin the machine in short time! ●... -
Page 26: Conveying Condensable Vapours
6 | Commissioning ● After a few minutes of operation, perform an Oil Level Inspection [➔ 28]. ● After a few minutes of operation, perform a Cooling Liquid Level Inspection [➔ 29]. As soon as the machine is operated under normal operating conditions: ●... -
Page 27: 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 28: Oil Level Inspection
● Change the cooling liquid, see Cooling Liquid Change [➔ 32]. ● 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 29: Cooling Liquid Level Inspection
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 0400 B WCV_EN_en 29 | 44... - Page 30 7 | Maintenance For oil type and oil capacity see Technical Data [➔ 38] and Oil [➔ 40]. 30 | 44 Instruction Manual COBRA NC 0400 B WCV_EN_en...
- Page 31 __ / __ / ____ 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 0400 B WCV_EN_en 31 | 44...
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Page 32: Cooling Liquid Change
7 | Maintenance Cooling Liquid Change For cooling liquid type and cooling liquid capacity see Technical Data [➔ 38] and Cooling Liquid [➔ 39]. 32 | 44 Instruction Manual COBRA NC 0400 B WCV_EN_en... -
Page 33: 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 34: 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 35: 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 36: 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. A temperature sensor has ● Let the machine cool down. reached the switch point. - Page 37 Oil Change [➔ 29]. 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 0400 B WCV_EN_en 37 | 44...
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Page 38: Technical Data
12 | Technical Data Technical Data NC 0400 B Pumping speed m³/h 350 / 420 (50Hz / 60Hz) Ultimate pressure (without gas hPa (mbar) ≤0.05 / ≤0.01 ballast) abs. (50Hz / 60Hz) Ultimate pressure (with gas ballast) hPa (mbar) ≤0.1 / ≤0.1 (50Hz / 60Hz) abs. -
Page 39: 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 0400 B WCV_EN_en 39 | 44... -
Page 40: Oil
14 | Oil VSC 100 ISO-VG Part number 1 L packaging 0831 168 356 Part number 5 L packaging 0831 168 357 40 | 44 Instruction Manual COBRA NC 0400 B WCV_EN_en... -
Page 41: 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 42: 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 43 Notes Instruction Manual COBRA NC 0400 B WCV_EN_en 43 | 44...
- Page 44 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.