BUSCH COBRA NC 0100 B Instruction Manual
Dry screw vacuum pump water-cooled version
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- Instruction manual (48 pages) ,
- Supplement of installation and maintenance instructions (36 pages) ,
- Installation and maintenance instructions manual (28 pages)
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Summary of Contents for BUSCH COBRA NC 0100 B
- Page 1 COBRA Dry Screw Vacuum Pumps NC 0100 B, NC 0200 B, NC 0300 B Water-Cooled Version (WCV) Instruction Manual 0870573306 | -0006_en-US | Original instructions 6/14/2024...
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Page 2: Table Of Contents
Table of Contents Table of Contents Safety ..................................Product Description ............................. Operating Principle ............................. Intended Use ............................... Start Controls............................... Water Cooling Variants............................2.4.1 Direct Cooling ............................2.4.2 Plate Heat Exchanger (Optional) ......................Standard Features............................... 2.5.1 Temperature Switch ..........................2.5.2 Thermometer ............................2.5.3 Sealing Systems ............................ - Page 3 Table of Contents Maintenance Schedule ............................Oil Level Inspection............................. Cooling Liquid Level Inspection ........................Oil Change................................Cooling Liquid Change ............................Overhaul ................................Decommissioning ..............................10.1 Dismantling and Disposal ..........................Spare Parts ................................Troubleshooting ..............................Technical Data ..............................Cooling Liquid ............................... Oil ...................................
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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 ODP, MP ODP, MP Description NC 0200 B with direct cooling NC 0200 B with silencer NC 0100 B with plate heat exchanger Description Suction connection (Inlet) Discharge connection (Outlet) Condensate drain Cooling liquid drain plug Cooling liquid pump Cooling water drain plug Cooling water inlet... -
Page 6: Operating Principle
2 | Product Description NOTE Technical term. In this instruction manual, we consider that the term ‘machine’ refers to the ‘vacuum pump’. NOTE Illustrations. In this instruction manual, the illustrations may differ from the appearance of the machine. Operating Principle Water-cooled version with direct cooling Water-cooled version with plate heat exchanger (optional) The machine works on the one-stage, twin-screw pump principle. -
Page 7: Intended Use
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. -
Page 8: Standard Features
2 | Product Description In addition to the plate heat exchanger (PHE), the machine is equipped with an expansion vessel (EV), as shown below: Description Expansion vessel Cooling liquid fill plug Cooling liquid sight glass Standard Features 2.5.1 Temperature Switch The temperature switch monitors the operating temperature of the machine. -
Page 9: Silencer
Product Description | 2 2.6.2 Silencer A silencer at the discharge connection (OUT) can be provided to reduce the exhaust gas noise. A non-return flap can be optionally added to the silencer. 2.6.3 Barrier Gas System The barrier gas system allows the supply of compressed air or nitrogen into the motor side shaft seals to improve the sealing efficiency. -
Page 10: 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 11: Storage
Storage | 4 Storage ● Seal hermetically all apertures with the caps provided with the machine, or with adhesive tape if the caps are no longer available. ● Store the machine indoors, in a dry place, away from dust and vibrations and if possible, in original packaging, preferably at temperatures between 5 ... -
Page 12: Installation
● Make sure that the cooling water complies with the requirements, see Cooling Water Connection [➔ 15]. If the machine is installed at an altitude greater than 1000 meters above sea level: ● Contact your Busch representative, the motor must be derated or the ambient temperature limited. 12 | 52... -
Page 13: Connecting Lines / Pipes
DN50 PN16, EN 1092-1 for NC 0200 B and NC 0300 B 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. -
Page 14: Discharge Connection
5 | Installation 5.2.2 Discharge Connection NOTICE Discharge gas flow obstructed. Risk of damage to the machine! ● Make sure that the discharged gas will flow without obstruction. Do not shut off or throttle the discharge line or use it as a pressurized air source. Connection size(s): At the machine discharge connection: –... -
Page 15: Cooling Water Connection
Installation | 5 5.2.3 Cooling Water Connection Water-cooled version with direct cooling Description Thermostatic valve adjustment Vent plug to evacuate air from the cool- ing circuit (see instructions below) Description Cooling water inlet Cooling water outlet Thermostatic valve Water-cooled version with plate heat exchanger (optional) Description Cooling water inlet Cooling water outlet... - Page 16 5 | Installation ● Connect the cooling water connections (CWI / CWO) to the water supply. Connection size: – DN15 PN10, DIN 2566 (CWI / CWO) with direct cooling – G ½”, ISO 228-1 (CWI / CWO) with plate heat exchanger ●...
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Page 17: Barrier Gas System Connection (Optional)
Installation | 5 5.2.4 Barrier Gas System Connection (Optional) With nitrogen panel FME, FS Description Barrier gas connection Flow meter Flow switch Manometer Nitrogen panel Pressure regulating valve ● Connect the barrier gas connection (BGC) to the gas supply. Connection size: –... -
Page 18: 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 Nitrogen panel Pressure regulating valve ● Connect the dilution gas connection (DGC) to the gas supply. Connection size: – G1/4”, ISO 228-1 ●... -
Page 19: 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 20: 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 and Oil [➔ 49]. 20 | 52... - Page 21 ● Write down the oil change date on the sticker. If there is no sticker (part no. 0565 568 959) on the machine: ● Order it from your Busch representative. Instruction Manual COBRA NC 0100-0300 B WCV_EN_en 21 | 52...
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Page 22: Filling Cooling Liquid
5 | Installation Filling Cooling Liquid This step must be carried out only if the machine is equipped with a plate heat exchanger (PHE). For cooling liquid type and cooling liquid capacity see Technical Data and Cooling Liquid [➔ 48]. Description Expansion vessel (EV) NC 0200 B, NC Expansion vessel (EV) NC 0100 B 0300 B... -
Page 23: Liquid Flushing Device Installation (Optional)
Installation | 5 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 [➔ 29]. ● Electrically connect the two level switches (LS), see Wiring Diagram Level Switch [➔ 31]. ●... -
Page 24: Fitting The Coupling
5 | Installation Fitting the Coupling NOTE Radial screw. For trouble-free operation, use thread locking glue to secure the radial screw. Description Coupling hub (machine side) Coupling spider Coupling hub (motor side) Radial screw / max. admissible torque: 10Nm Machine type Coupling size Value “E”... -
Page 25: Electrical Connection
● Make sure that the motor of the machine will not be affected by electric or electromagnetic dis- turbance from the mains. If necessary, contact your Busch representative for more information. ● Make sure that the EMC of the machine is compliant with the requirements of your supply net- work system, if necessary, provide further interference suppression (EMC of the machine, see EU Declaration of Conformity [➔ 50] or UK Declaration of Conformity [➔ 51]). -
Page 26: Machine Delivered With A Variable Speed Drive (Option)
6 | Electrical Connection ● Busch recommends installing a type B residual protective device suitable for the electrical in- stallation. ● Provide a lockable disconnect switch or an emergency stop switch on the power line so that the machine is completely secured in case of an emergency situation. -
Page 27: Wiring Diagram Three-Phase Motor (Pump Drive)
● If the machine is equipped with a power connector, install a residual current protective device to protect persons in case of a defective insulation. ● Busch recommends installing a type B residual protective device suitable for the electrical in- stallation. - Page 28 6 | Electrical Connection Double star connection, multi-voltage motor with 9 pins (low voltage): Star connection, multi-voltage motor with 9 pins (high voltage): Double star connection, multi-voltage motor with 12 pins (low voltage): Star connection, multi-voltage motor with 12 pins (high voltage): Delta connection, multi-voltage motor with 12 pins (middle voltage): 28 | 52 Instruction Manual COBRA NC 0100-0300 B WCV_EN_en...
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Page 29: Wiring Diagram Solenoid Valve (Optional)
Electrical Connection | 6 NOTICE Incorrect direction of rotation. 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. The intended rotation direction of the motor is defined by the illustration below: ●... -
Page 30: Electrical Connection Of The Monitoring Devices
6 | Electrical Connection Electrical Connection of the Monitoring Devices NOTE To prevent potential nuisance alarms, Busch recommends that the control system is config- ured with a time delay of at least 20 seconds. 6.5.1 Wiring Diagram Temperature Switch Part no.: 0651 555 985 Electrical data: U = 6 …... -
Page 31: Wiring Diagram Pressure Switch (Optional)
Electrical Connection | 6 6.5.3 Wiring Diagram Pressure Switch (Optional) Part no.: 0653 518 304 Electrical data: U = 250 VAC; I = 6 A U = 12 … 220 VDC; I = 6 … 0.25 A Contact: Normally closed Switch point: P = 2.5 bar (relative) ►... -
Page 32: Commissioning
7 | Commissioning Commissioning 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. Risk of damage to hearing! If people are present in the vicinity of a machine that is not insulated from noise for extended peri- ods of time: ●... -
Page 33: Conveying Condensable Vapors
Commissioning | 7 Conveying Condensable Vapors CAUTION Draining the condensate while operating and/or venting the machine. The discharged gases and/or liquids may reach temperatures above 70°C! Risk of burns! ● Avoid direct contact with the flow of gases and/or liquids. The machine, equipped either with a gas ballast valve or a gas dilution system, is suitable for con- veying condensable vapors in the gas stream. -
Page 34: Gas Purging Procedure
7 | Commissioning Gas Purging Procedure The machine can be optionally equipped with a purge gas system. If after the application process a gas purge is required, i.e. after a liquid flushing sequence or to ren- der the compression chamber inert: START ●... -
Page 35: Maintenance
Maintenance | 8 Maintenance DANGER Live wires. Risk of electrical shock! ● Electrical installation work must only be executed by qualified personnel. If the machine is equipped with a variable speed drive: DANGER Maintenance work without disconnecting the variable speed drive. Risk of electrical shock! ●... -
Page 36: Maintenance Schedule
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 37: Oil Level Inspection
Maintenance | 8 Interval Maintenance work Every 5000 hours or after 1 year ● Change the oil of the gear and bearing housings (both sides), see Oil Change [➔ 38]. If the machine is equipped with a plate heat exchanger (PHE): ●... -
Page 38: 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 38 | 52 Instruction Manual COBRA NC 0100-0300 B WCV_EN_en... - Page 39 Maintenance | 8 Description Magnetic plug For oil type and oil capacity see Technical Data and Oil [➔ 49]. Instruction Manual COBRA NC 0100-0300 B WCV_EN_en 39 | 52...
- Page 40 ● Write down the oil change date on the sticker. If there is no sticker (part no. 0565 568 959) on the machine: ● Order it from your Busch representative. 40 | 52 Instruction Manual COBRA NC 0100-0300 B WCV_EN_en...
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Page 41: Cooling Liquid Change
Maintenance | 8 Cooling Liquid Change This step must be carried out only if the machine is equipped with a plate heat exchanger (PHE). Description Expansion vessel (EV) NC 0200 B, NC Expansion vessel (EV) NC 0100 B 0300 B Cooling liquid drain valve (CLD) For cooling liquid type and cooling liquid capacity see Technical Data and Cooling Liquid [➔ 48]. -
Page 42: Overhaul
● Decontaminate the machine as much as possible and state the contamination status in a ‘Declaration of Contamination’. Busch will only accept machine accompanied by a signed, fully completed and legally binding "decla- ration of contamination", downloadable from the following link: buschvacuum.com/declaration-of- contamination. -
Page 43: Decommissioning
Decommissioning | 10 Decommissioning DANGER Live wires. Risk of electrical shock! ● Electrical installation work must only be executed by qualified personnel. CAUTION Hot surface. Risk of burns! ● Before doing anything that requires touching the machine, let it cool down first. ●... -
Page 44: Spare Parts
Risk of premature failure! Loss of efficiency! ● Use only original Busch spare parts, consumables and supplies to ensure correct operation of the machine and to validate the warranty. There are no standard spare parts kits available for this product. -
Page 45: Troubleshooting
Busch). Solid foreign matter has en- ● Remove the solid foreign tered the machine. matter or repair the ma- chine (contact Busch). ● Install an inlet filter if nec- essary. A temperature sensor has ● Let the machine cool down. - Page 46 Oil Change [➔ 38]. 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. 46 | 52 Instruction Manual COBRA NC 0100-0300 B WCV_EN_en...
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Page 47: Technical Data
Technical Data | 13 Technical Data NC 0100 B NC 0200 B NC 0300 B Pumping speed (50 / 60 Hz) m³/h 110 / 130 220 / 265 320 / 385 ACFM ‒ / 76.5 ‒ / 155 ‒ / 225 Ultimate pressure (50 / 60 Hz) hPa (mbar) abs. -
Page 48: Cooling Liquid
14 | Cooling Liquid Cooling Liquid Zitrec ® M-25 (Ready-to-use) Part number 5 L packaging 0831 563 469 Part number 20 L packaging 0831 238 761 Zitrec ® M-25 coolant (Cooling liquid) is ready-to-use and requires no additional water. For more information, visit www.arteco-coolants.com. 48 | 52 Instruction Manual COBRA NC 0100-0300 B WCV_EN_en... -
Page 49: Oil
Oil | 15 VSC 100 ISO-VG Oil type Synthetic Part number 1 L packaging 0831 168 356 Part number 5 L packaging 0831 168 357 Part number 10 L packaging 0831 210 162 Part number 20 L packaging 0831 168 359 Instruction Manual COBRA NC 0100-0300 B WCV_EN_en 49 | 52... -
Page 50: Eu Declaration Of Conformity
Virginia Beach, VA 23452 Switzerland declares that the machine: COBRA NC 0100 B; COBRA NT 0100 B; COBRA NX 0100 B; COBRA NC 0200 B; COBRA NX 0200 B; COBRA NC 0300 B; COBRA NT 0300 B; COBRA NX 0300 B fulfill(s) all the relevant provisions from EU directives: –... -
Page 51: Declaration Of Conformity
Virginia Beach, VA 23452 Switzerland declares that the machine: COBRA NC 0100 B; COBRA NT 0100 B; COBRA NX 0100 B; COBRA NC 0200 B; COBRA NX 0200 B; COBRA NC 0300 B; COBRA NT 0300 B; COBRA NX 0300 B fulfill(s) all the relevant provisions from UK legislations: –... - Page 52 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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