BUSCH Cobra NC 0630 C Instruction Manual
Dry screw vacuum pump
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- Instruction manual (36 pages) ,
- Installation and maintenance instructions manual (20 pages) ,
- Instructions manual (44 pages)
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Summary of Contents for BUSCH Cobra NC 0630 C
- Page 1 COBRA Dry Screw Vacuum Pumps NC 0630 C Air-Cooled Version (ACV) Instruction Manual 0870567093 | A0006_en-US | Original instructions 6/28/2024...
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Page 2: Table Of Contents
Wiring Diagram Temperature Switch ....................6.6.2 Wiring Diagram Flow Switch (Optional)..................... 6.6.3 Wiring Diagram Level Switch (Optional).................... Commissioning ..............................Conveying Condensable Vapors........................Liquid Flushing Procedure ..........................Gas Purging Procedure ............................Maintenance ................................. 2 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en... - Page 3 Overhaul ................................Decommissioning ..............................10.1 Dismantling and Disposal ..........................Spare Parts ................................Troubleshooting ..............................Technical Data ..............................Cooling Liquid ............................... Oil ................................... EU Declaration of Conformity ..........................UK Declaration of Conformity..........................Instruction Manual COBRA NC 0630 C ACV_EN_en 3 | 52...
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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
Gas ballast valve Magnetic plug Motor terminal box Nameplate Oil drain plug Oil fill plug Oil sight glass Plug for manual rotation of rotors Silencer Safety valve Thermometer Temperature switch Instruction Manual COBRA NC 0630 C ACV_EN_en 5 | 52... -
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. -
Page 7: Start Controls
The barrier gas system allows the supply of compressed air or nitrogen into the motor side shaft seals to improve the sealing efficiency. This device is available either with or without nitrogen panel. Instruction Manual COBRA NC 0630 C ACV_EN_en 7 | 52... -
Page 8: Mechanical Seals
Furthermore, two level switches (LS1 and LS2) monitor the flushing liquid quantity. Upper level switch (LS1 ► L Early warning alarm Lower level switch (LS2 ► L Trip, the flushing must be stopped trip 8 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en... -
Page 9: Transport
● Make sure that the eye bolt(s) (EB) is/are in faultless condition, fully screwed in and tightened by hand. ● 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 0630 C ACV_EN_en 9 | 52... -
Page 10: Storage
Use the standard pump oil, see chapter Oil [➔ 46]. ● Before restarting the machine, drain the oil to the normal oil level, see “Oil draining” in chapter Oil Change [➔ 35]. 10 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en... -
Page 11: Installation
● Make sure that the environmental conditions comply with the protection class of the motor and the electrical elements. ● Make sure that the installation space or location is vented such that sufficient cooling of the ma- chine is provided. Instruction Manual COBRA NC 0630 C ACV_EN_en 11 | 52... -
Page 12: Connecting Lines / Pipes
DN100 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. ● Make sure that the connection lines cause no stress on the connections of the machine. There- fore, we recommend installing flexible lines on the suction and discharge connections. -
Page 13: Discharge Connection
(OUT) does not exceed the maximum allowable discharge pressure, see Technical Data. 5.2.3 Barrier Gas System Connection (Optional) Without nitrogen panel Description Barrier gas connection Flow meter Flow regulator Manometer Pressure regulating valve Instruction Manual COBRA NC 0630 C ACV_EN_en 13 | 52... - Page 14 (g) sure regulating valve (PRV) Filtration µm Recommended flow rate SLM (standard li- 3,5 ... 5,5 ter per minute) Air quality (only for air) Acc. to ISO Class 5.4.4. 8573-1 14 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en...
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Page 15: Dilution Gas System Connection (Optional)
0 ... 60 Maximum gas pressure bar (g) Recommended pressure setting at the pres- bar (g) sure regulating valve (PRV) Filtration µm Recommended flow rate SLM (standard li- ter per minute) Instruction Manual COBRA NC 0630 C ACV_EN_en 15 | 52... -
Page 16: Purge Gas System Connection (Optional)
Maximum gas pressure bar (g) Recommended pressure setting at the pres- bar (g) sure regulating valve (PRV) Filtration µm Recommended flow rate SLM (standard li- ≥ 100 ter per minute) 16 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en... -
Page 17: 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 [➔ 46]. Instruction Manual COBRA NC 0630 C ACV_EN_en... -
Page 18: Filling Cooling Liquid
Radiator vent valve key Close the cooling liquid vent valve (CLV2) when the cooling liquid is spill- ing out Resume cooling liquid filling Fill up to the top of the vent orifice 18 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en... -
Page 19: Liquid Flushing Device Installation (Optional)
● Electrically connect the solenoid valve (MV), see Wiring Diagram Solenoid Valve [➔ 25]. ● Electrically connect the two level switches (LS), see Wiring Diagram Level Switch [➔ 28]. ● Fill the flushing liquid vessel (FLV) with a process compatible flushing liquid. Instruction Manual COBRA NC 0630 C ACV_EN_en 19 | 52... -
Page 20: 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 20 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en... -
Page 21: 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 [➔ 47] or UK Declaration of Conformity [➔ 48]). - Page 22 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.
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Page 23: Machine Delivered With A Variable Speed Drive (Option)
● 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 24: Wiring Diagram Three-Phase Motor (Pump Drive)
Star connection (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): 24 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en... -
Page 25: Wiring Diagram Solenoid Valve (Optional)
If the rotation of the motor must be changed: ● Switch any two of the motor phase wires. Wiring Diagram Solenoid Valve (Optional) Part no.: 0654 000 092 U = 24 VDC; P = 8 W Contact: Normally closed Instruction Manual COBRA NC 0630 C ACV_EN_en 25 | 52... -
Page 26: Electrical Connection Of The Heat Exchanger Fan Motor
U1 = Black; V1 = Blue; W1 = Brown; U2 = Green; V2 = White; W2 = Yellow U = 230/400 VAC 50 Hz; I = 0.9/0.5 A U = 230/400 VAC 60 Hz; I = 0.95/0.54 A P = 0.195 kW 26 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en... -
Page 27: Electrical Connection Of The Monitoring Devices
● Switch any two of the motor phase wires. 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. 6.6.1 Wiring Diagram Temperature Switch Part no.: 0651 541 566... -
Page 28: Wiring Diagram Flow Switch (Optional)
6 | Electrical Connection 6.6.2 Wiring Diagram Flow Switch (Optional) Part no.: No Busch reference (Integrated into the flow meter) Supplier reference: Pepperl+Fuchs RC15-14-N3 Electrical data: U = 5 … 25 V; I = 1 … 3 mA Switching element function: NAMUR, bistable Contact: Normally open Switch point: 3 SLM ►... -
Page 29: Commissioning
● Make sure the fan motor of the heat exchanger (AHE) is running when the machine is in opera- tion. ● Make sure that the Installation Conditions [➔ 11] are met. Instruction Manual COBRA NC 0630 C ACV_EN_en 29 | 52... -
Page 30: Conveying Condensable Vapors
● Close the gas ballast valve* or the gas dilution system* (Solenoid valve). * Optional accessories ● Continuously drain condensate from the condensate drain plug (CD) of the silencer (SI) (Option- al). 30 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en... -
Page 31: Liquid Flushing Procedure
● Close the inlet valve ● Open the purge gas (solenoid valve) ● The flushing duration depends on the application (minimum 200 seconds to render the ma- chine inert) ● Close the purge gas Instruction Manual COBRA NC 0630 C ACV_EN_en 31 | 52... -
Page 32: Maintenance
If the machine is contaminated with hazardous material: ● Wear appropriate personal protective equipment. CAUTION Hot surface. Risk of burns! ● Before doing anything that requires touching the machine, let it cool down first. 32 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en... -
Page 33: 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 34: Oil Level Inspection
● Fill up if necessary, see Filling Cooling Liquid [➔ 18]. Replacing the Gas Ballast Filter (Optional) Description Discard the used part Gas ballast filter - Part No. 0562 550 434 (Busch genuine spare part) 34 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en... -
Page 35: 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 Instruction Manual COBRA NC 0630 C ACV_EN_en 35 | 52... - Page 36 8 | Maintenance Description Magnetic plug For oil type and oil capacity see Technical Data and Oil [➔ 46]. 36 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en...
- Page 37 ● 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 0630 C ACV_EN_en 37 | 52...
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Page 38: Cooling Liquid Change
Radiator vent valve key Close the cooling liquid vent valve (CLV2) when the cooling liquid is spill- ing out Resume cooling liquid filling Fill up to the top of the vent orifice 38 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en... -
Page 39: 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 40: 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. 40 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en... -
Page 41: 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 42: Troubleshooting
● Repair the machine. remaining condensate. ● Check the process and fol- low the recommendation in case of conveying condens- able vapors. The motor is defective. ● Replace the motor. 42 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en... - Page 43 Oil Change [➔ 35]. 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. Instruction Manual COBRA NC 0630 C ACV_EN_en 43 | 52...
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Page 44: 13 | Technical Data
> 50 hPa (mbar) abs. : 70 Relative humidity at 30°C 90 % Ambient pressure Atmospheric pressure Oil capacity - Motor side Oil capacity - Suction side Cooling liquid capacity approx. Weight approx. 44 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en... -
Page 45: Cooling Liquid
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. Instruction Manual COBRA NC 0630 C ACV_EN_en 45 | 52... -
Page 46: Oil
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 46 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en... -
Page 47: 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 48: 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 49 N otes Notes Instruction Manual COBRA NC 0630 C ACV_EN_en 49 | 52...
- Page 50 Notes 50 | 52 Instruction Manual COBRA NC 0630 C ACV_EN_en...
- Page 51 Notes Instruction Manual COBRA NC 0630 C ACV_EN_en 51 | 52...
- 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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