BUSCH COBRA BC 1001 G User manual

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Instruction Manual
COBRA
Screw Vacuum Pumps
BC 1001 G
02/09/2020
Busch Manufacturing Korea, Ltd.
189-51, Soicheon-ro, Majang-myun
Icheon-si, Gyunggi-do, 467-813
Republic of Koreaea
0870732338/-_en / Original instructions / Modifications reserved

Preface
3
Preface
Page 2 08707 (En)
Preface
worldwide.
–
–safety,
–transport,
–storage,
–
–maintenance,
–
–troubleshooting
BC 1001 G
1001 G
NW 0090 A, PUMA WY 0701 B,
COBRA BC1001 G
1001 G
NW 0090 A
WY 0701 B
Power connector on vacuum pump rear side

0870760874 (En) Page 3
COBRA BC 1001 G
IN Inlet connection
OUT Discharge connection
EC Electrical connections
PRV Nitrogen pressure reducer
ECP Earthing connection M8
CWC Cooling water connections
NC Nitrogen connections
CAO Extracting ventilator
EB Eye bolts
RC LCD
PLC PLC box
EB Eye bolts
ESS Emergency stop switch (EMO)
OSG Oil sight glass
OSG1 Oil sight glass
OSG2 Oil sight glass
OSG3 Oil sight glass
CPC PLC connection
MB On/ off switch/ Main circuit
breaker
RF Ventilator
VFD1 Variable frequency device
VFD2 Variable frequency device
MOT1 Motor
MOT2 Motor
TS3Oil temperature sensor (MB)
TS4Sensor PT100
PSA Pressure sensor
DGR 1 Regulating valve, dilution gas
DGR 2 Regulating valve, dilution gas
MV Nitrogen solenoid valve
DGF Nitrogen flow meter
CWM Cooling water flow meter
CWR Cooling water regulating valve
IN
EC
PRV
ECP
CWC
NC
CAO EB RC
PLC
OSG
ESS
CPC
MB
RF
BC 1001 G
OUT

Page 4 0870760874 (En)
VFD2
MOT1
TS4
MOT2
OSG3 VFD1
OSG2
TS1
PSA OSG1
MV
CWM
CWR
DGR1 DGR2
DGF
BC 1001 G

Product description
Use
The COBRA BC vacuum pumps are designed for use in the field of
microelectronics and similar industries.
They can be used to suck gases and gas mixtures.
WARNING
When using toxic, inflammable and/ or explosive gases, make sure
that the system corresponds in design to applicable local and
national safety regulations and that all applicable safety measures
are followed.
All product-specific safety regulations must be observed.
Solid particles must not get into the vacuum pump. Procedural errors
can result in the pump sucking in a certain quantity of liquid. If the
pump has sucked in liquid, a short drying time is necessary at the end
of the procedure.
The allowed maximum inlet gas temperature depends on the inlet
pressure and the type of gas: the lower the inlet pressure (Pa), the
higher the drawn gas temperature (TGas) can be.
The following indicative values for air can be considered:
– Pa > 50 mbar, TGas < 80°C
– Pa < 50 mbar, TGas < 200°C
The vacuum pump is intended for use in a potentially non-explosive
environment.
As far as temperature is concerned, the vacuum pump is suitable for
evacuation of a 300 liters tank. The vacuum pump is not suitable for
continuous duty at a pressure more or equal than 150 (hPa) mbar.
Caution, the operating cycle of 150 (hPa) mbar must not exceed more
than 5 min.
For other applications, contact your Busch representative.
- Maximum inlet pressure: 1 bar (abs).
- With pump running at full speed, do not expose to inlet pressure
> 300 (hPa) mbar.
The vacuum pump is tight down to ultimate pressure.
Operating principle
COMBI
The COBRA BC 1001 G pumps are a combination of a screw vacuum
pump NW 0090 A (DP) and a Roots vacuum pump WY 0701 B (MB)
Product description
0870760874 (En) Page 5
DP
7
4
2
8
53
1
6
4
MB
1 Inlet
2 Outlet
3Oil
4 Cooling water
5 Barrier gas
6 Motor klixon DP
7 Intake medium
8 Screw rotors
9 Roots lobe
10 Motor klixon MB
Process gas inlet
Process gas
outlet
Cooling water
inlet
Cooling water
outlet
Nitrogen inlet
TS3
TS4
DGF PRV
PSA OSG1
OSG3
MOT1 TS1
TS2
OSG4 MOT2 VFD2 VFD1
CWM
CWR
DGR2
DGR1
MV
DGF Nitrogen flow meter, dilution gas
PRV Nitrogen pressure reducer
PSA Pressure sensor
TS 3 Oil temperature sensor (MB)
(klixon)
TS 4 Sensor PT100
OSG 1 Oil level indicator (DP)
OSG 3 Oil level indicator (MB)
OSG 4 Oil level indicator (MB)
MOT 1 Motor (DP)
MOT 2 Motor (MB)
CWM Cooling water flow meter
VFD 1 Frequency inverter (DP)
VFD 2 Frequency inverter (MB)
CWR Cooling water regulating valve
DGR 2 Regulating valve, dilution gas
DGR 1 Regulating valve, dilution gas
MV Nitrogen solenoid valve, dilution
gas
TS 1 Klixon (DP)
TS 2 Klixon (MB)
BC 1001 G

The COBRA BC 1001 G vacuum pumps are COBRA NW screw
vacuum pumps with cooling water and nitrogen circuits.
The COBRA NS screw vacuum pumps are driven by water-cooled
motors.
Principle of DP vacuum pumps
The COBRA NS screw vacuum pumps work by the principle of spiral
pumps. Two parallel screws (8) rotate in opposite directions in the
pump body. Entering gases are trapped between the flights of the
screws and the pump body. The gases are conveyed by the rotation of
the screws to the exhaust, where they are discharged.
Principle of MB vacuum pumps
The Roots vacuum pumps operate according to the approved principle
of the Roots type machine. Operation is both simple and effective.
Two lobes (9) with identical profiles rotate in opposition directions
within a casing. As they rotate, gas is drawn into the space between
each lobe and the casing where it is trapped and by the rotation
pushed out into the discharge. This action is repeated twice for each
revolution of each lobe and therefore four times for each revolution of
the drive shaft. There is no mechanical contact between lobes and
cylinder. So no oil lubrication is required.
The drive motor of roots pump is a water cooled canned motor.
Gas flow checks
A pressure sensor PSA at the discharge monitors the discharge
pressure. If the pressure reaches more than the limit value (alarm,
preset at the factory: 0.2 bar), the purge cycle starts.
Oil circuit
Since the complete operating principle works without contact, no oil
circuit is needed in the work area.
Cooling
The vacuum pump is cooled by
–a direct cooling water circuit in the motors and the DP and MB
transmission casing. The flow regulating valve CWR of cooling
water is preset on 3-4 l/min at the factory. The water cools in the
DP and MB pumps motors, the two frequency inverters (VFD 1,
VFD 2) and the drive/ pump transmission DP system.
–a direct cooling water circuit in the rear bearing (for exceptionally
cool running in option).
NOTE: The COBRA BC 1001 G vacuum pumps are principally
dispatched without oil already in the vacuum pump but, without cooling
water. Before vacuum pump first startup, control the oil level and the
cooling liquid level. In the event of absence of one or the other
of these lubricants, please carry out the filling (please refer to the
various chapters of filling). Do not forget to connect the cooling water
supply before the first startup. Operation without these coolants can
result in damage to the vacuum pump.
Nitrogen system
The nitrogen system can be used in a number of different ways :
–nitrogen is used as dilution gas. It is injected inside the cylinder on
two different places. Nitrogen flow injected in the middle hole is
preset at 2 l/ min and can be adjusted with valve DGR 2,
depending on the application. Nitrogen flow injected in the hole on
cylinder endplate side is preset at 10 l/ min and can be adjusted
with valve DGR 1, depending on the application. When flow is too
low a warning then an alarm signal is generated by flowmeter DGF
to the PLC. Status of the pump depends on the alarm function set
by user (factory setting : None, pump continues running with an
alarm). Dilution improves the screws functioning, especially when
sucking corrosive gases.
–nitrogen is used as sealing gas. The nitrogen is injected between
the transmission and the process gas to achieve good closeness.
The Nitrogen flow used for the sealing is set by two orifice plates
(f). With a pressure of 1,5 bar, the flow is around 8-10 l/min.
Optional functions/ Use of available
accessories
A pressure sensor (PSA) mounted at the exhaust , controls the
overpressure at the exhaust. If overpressure is above 0,3 bar, pressure
sensor gives a warning then an alarm signal. Status of the pump
depends on the alarm function set by user (factory setting : None,
pump continues running with an alarm).
A temperature sensor PT100 (TS 4) mounted on the cylinder, measures
the temperature inside the cylinder (DP).
A silencer or sound absorber (accessory) at the exhaust reduces the
noise of the pump and collects any condensate.
A leak-protection non-return valve (optional) at the exhaust traps the
condensate in the pump when the pump is switched off.
The LCD controller processes the data of the sensors as follows:
–PSA: exhaust pressure
–TS 4: temperature inside the cylinder DP
–MOT 1 and MOT 2: DP and MB current and speed
–DGF: nitrogen flow rate, dilution
–CWM: cooling water flow rate in motors/ transmission/ frequency
inverters
See "Installation and Maintenance Instructions, Busch PLC and Busch LCD (No.
0870758077)".
On/ Off switch
The vacuum pump is delivered with a circuit breaker. The function start/ stop can
be done in Local by using the LCD controller or in Remote by the production
machine.
Versions
Further vacuum pump descriptions state the nominal displacement and the
design level.
Example: BC 1001 G
BC = standard version
1000 = 1000 m3/h
G= Design
Product description
Page 6 0870760874 (En)
BC 1001 G

Safety
Intended use
DEFINITION: For the purpose of correct understanding, the “handling”
of the vacuum pump implies the transport, storage, installation,
commissioning, the influence on operating conditions, maintenance,
troubleshooting and overhaul of the vacuum pump.
The vacuum pump is intended for industrial use. It should only be
handled by qualified staff.
The different applications for use and operational limits of the vacuum
pump as laid out in the “Product Description” and the “Installation
Prerequisites” of the vacuum pump must be observed both by the
manufacturer of the machinery into which the vacuum pump is to be
incorporated and by the end user.
The need for personal safety regulations depends mainly on the
application the pump will be used in. The end user must provide the
operators with all necessary means and tools and must inform his
personnel about any dangers emanating from the processed products.
The operator of the vacuum pump must observe the safety regulations
and must train and instruct his personnel accordingly.
Local regulations regarding the motors and electric control elements
must be observed when installing the pump in potentially explosive
environments.
The maintenance instructions must be observed and respected.
It is vital that these installation and maintenance instructions are read
and understood before the vacuum pump is used. If you have any
doubts, please contact your local Busch representative.
Safety information
The vacuum pump has been designed and manufactured in accordance
with the latest technical and safety standards. Nevertheless, residual
risks may remain.
A lot of safety information is mentioned in these Installation and
Operating Instructions as well as on the pump. The safety instructions
must be observed. The safety information can quickly be detected
through key words like DANGER, WARNING and CAUTION and is
defined as follows:
DANGER
Disregard of this safety note will always lead to accidents with
potentially fatal injuries and serious damages.
WARNING
Disregard of this safety note may lead to accidents with potentially
fatal injuries and serious damages.
CAUTION
Disregard of this safety note will always lead to accidents with minor
injuries and damages to property.
Safety stickers
COBRA NW 0090 A
COBRA WY 0701 B
BC 1001 G
Safety
0870760874 (En) Page 7
WARNING!
Hot surface!
Do not touch!
WARNING!
Hot surface!
Do not touch!
WARNING!
Hot surface!
Do not touch!
BC 1001 G

Noise emission
Refer to the table “Technical data” for the permissible noise leveling
free field conditions according to EN ISO 2151.
CAUTION
The sound level of the vacuum pump within a certain perimeter of
the pump is high.
Risk of hearing damage.
Users who are spending a longer period of time in the vicinity of a
non-insulated vacuum pump must wear suitable ear protection.
Safety area
Before any maintenance action, ensure a safety perimeter of a least
610 [mm] around the pump.
Electrical safety
Types of Electrical Work
The following are the four types of electrical work defined by the SEMI
S2, latest version, guideline:
Type 1
Equipment is fully deenergized.
Type 2
Equipment is energized. Energized circuits are covered or insulated.
NOTE : Type 2 work includes tasks where the energized circuits are or
can be measured by placing probes through suitable openings in the
covers or insulators.
Type 3
Equipment is energized. Energized circuits are exposed and inadvertent
contact with uninsulated energized parts is possible. Potential
exposures are no greater than 30 volts rms, 42.4 volts peak, 60 volts dc
or 240 volt-amp in dry locations.
Type 4
Equipment is energized. Energized circuits are exposed and inadvertent
contact with uninsulated energized parts is possible. Potential
exposures are greater than 30 volts rms, 42.4 volts peak, 60 volts dc,
or 240 volt-amp in dry locations. Potential exposures to
radio-frequency currents, whether induced or via contact, exceed the
limits in Table A5-1 of Appendix 5 (SEMI S2 guideline).
Lock Out/ Tag Out procedure (Type 1 of
electrical work)
lStop the pump with the LCD controller (press on STOP button
during 10s)
lPress on emergency stop button
lSwitch off the main circuit breaker
lSwitch off the customer’s power supply
lSwitch off the water and nitrogen quick connections (inlet first,
then outlet)
lPut the label or warning board “Maintenance processing” on or
next to the pump
Emergency off circuit description
lThe Emergency off circuit may be opened by pressing on
emergency stop button. If this element occurs, then the DP and
MB pumps will immediately stop. The PLC will remain energized
to save the pump status.
lIf the emergency stop button was pressed, check the start up of
the pump then release this button to restart the pump. Press on
Start button on the LCD controller, the pump will restart.
Installation of the vacuum pump in a
seismic zone
Upon receipt, the vacuum pump is fixed on the transport pallet with
two brackets.
lConvey the pump to its final location with a pallet truck before
removing it from its support
lUnscrew the fixing screws of the pump on the transport pallet and
remove the machine from its support with an appropriate lifting
system by using the lifting brackets made for this purpose
lThe pump must not lay only on the brackets. Unscrew the four
adjusting nuts until the machine legs touch the ground
lCheck that the wheels no longer touch the ground
CAUTION
The vacuum pump is fixed to the ground with four M10 screws, two
screws per bracket. The fixing screw must stand a 1200 N tensile
force (per bracket).
The final user must adapt the type of screws depending on the
ground material.
Information over the lubricants
Oil
Busch YLC 250 B, Art. No. 0831 131 400 (0,5 l @ 1 kg)
(Busch YLC 250 B)
Quantity BC 1001 G:
–WY 0701 B-MB: 1,4 l
–NW 0090 A-DP: 0,12 l
Replacement: After 16'000 h (see Maintenance program)
Technical data sheet: Please refer to chapter "Oil type/ Quantity".
Decommissioning procedure
When the product arrives at the end of the lifetime, it is necessary to
proceed to the decontamination of the vacuum pump
Safety
Page 8 0870760874 (En)
>ŝŌŝŶg Bracket
Wheel ĚũƵƐƟŶg Nut
BC 1001 G

CAUTION
Only authorized personnel may carry out any dismantling on the
vacuum pump. Before work begins, the operator of the vacuum
pump must fill in a form or a “Declaration Regarding Contamination
of Vacuum Equipment and Components” that provides information
on possible dangers and appropriate measures.
If this form has not been filled in completely and signed by a
responsible person, the vacuum pump may not be dismantled.
lProceed to disassembly of the vacuum pump. Please make sure to
wear a personal protective equipment (PPE) prior to any
intervention on the vacuum pump. Some residue may remain
inside.
lProceed to decommissioning of the different parts according to the
current local and national laws
Transport
The COBRA BC vacuum pumps are tested and checked in our factory
before careful packing. Check the packaging for transport damage
when the goods arrive. The pump can withstand temperatures
between -25°C and +55°C during transport.
Transport in packed state
Packed on a pallet, the vacuum pump can be moved with a hand
forklift truck.
Transport in unpacked state
The vacuum pump is fastened to the pallet with fixing pins:
uUnscrew the fastening nuts underneath the pallet.
CAUTION
Do not work, walk or stand under suspended loads.
CAUTION
Please check out the weight of the vacuum pump before lifting it up
(see "Technical Data").
Use adequate lifting gear for this.
NOTE: The eyebolts are fitted more or less at equal distance from the
centre of gravity of the vacuum pump incl. drive motor. If any
accessories that could upset the balance of the vacuum pump, are
installed, or if the vacuum pump is delivered without drive motor, it is
necessary to add a belt or rope at a suitable point when lifting the
pump.
lAttach lifting gear securely to the eyebolt or eyebolts
lUse lifting gear with a crane hook equipped with safety latch.
lLift the vacuum pump
In case the vacuum pump was bolted to a pallet with fixing bolts:
Unscrew the fixing bolts in the base frame.
CAUTION
In case of a vacuum pump filled with oil, make sure that by lifting
the inclination angle of the vacuum pump do not exceed 5° from
the horizontal . In case of too high inclination (>5°), risk of oil leak
within the work area
Make sure before every transport using the appropriate lifting mean
that the inclination of the vacuum pump is less than 5°.
The packaging material must be disposed of in accordance with local
and national regulations.
This handbook is contained in the delivery package.
Storage
Temporary storage
lMake sure that the intake and exhaust flanges are closed (put on
the protective caps included in the delivery package of the vacuum
pump)
lStore the vacuum pump
–if possible, the vacuum pump should be stored in its original
packaging,
–indoors,
–dry,
–in a dust-free and vibration-free room
Removal of the pump
Before starting a vacuum pump that has been stored outside the
building for a while, the vacuum pump must be moved to a room with
ambient temperature, where it should rest for a day.
Preservation
If the vacuum pump will be exposed to unfavourable ambient
conditions (for example, aggressive environment, frequent temperature
changes), begin immediately with preservation work on the vacuum
pump.
In the case of favourable ambient conditions, perform preservation
work on the vacuum pump if a storage period of more than three
months are planned.
lMake sure that all openings are hermetically sealed; use adhesive
tape to fasten loose parts (seal rings, flat seals, etc.).
Transport
0870760874 (En) Page 9
BC 1001 G

NOTE: VCI is the abbreviation for “volatile corrosion inhibitor”. The
VCI molecule is an organic corrosion inhibitor in the vapour phase.
Integrated in various carriers such as film, cardboard, paper, foam,
liquid and powder, it protects the parts against corrosion as a result of
its action in the vapour phase. However, VCI packaging can attack
synthetic surfaces and surfaces of other elastomers. If in doubt, please
contact your nearest distributor. VCI packaging provides several years
of protection against corrosion, even under the harshest of conditions:
overseas shipment, extended storage before use.
lWrap the vacuum pump in a VCI film
lStore the vacuum pump
–if possible, the vacuum pump should be stored in its original
packaging,
–indoors,
–dry,
–in a dust-free and
–vibration-free room
Start-up of the vacuum pump after storage:
lMake sure that all protective elements, stoppers or adhesive tapes
attached before preservation have been removed
lSwitch on the vacuum pump in the sequence described in the
chapter “Installation and Commissioning”
Installation and Commissioning
Installation prerequisites
CAUTION
In case of non-compliance with the installation prerequisites,
particularly in case of insufficient cooling:
Risk of damage or destruction of the vacuum pump and its
components!
Risk of personal injury!
The installation prerequisites must be complied with.
lPlease ensure that the integration of the vacuum pump is
compliant with the safety requirements of the Machine Directive
2006/42/EC (concerning the responsibility of the system’s
manufacturer into which the vacuum pump is to be incorporated,
please also refer to the note in the EU-Declaration of Conformity).
WARNING
Local regulations regarding the motors and electric control
elements must be observed when installing the pump in potentially
explosive environments. Make sure before start-up that all safety
measures have been followed.
Local installation
lMake sure that the environment of the vacuum pump is not
potentially explosive
lMake sure that the following ambient conditions are fulfilled:
–Ambient temperature: 0 ... 40 °C (32 ... 104 °F)
–Ambient pressure: atmosphere
–Humidity range: 20 to 95%
–Altitude: up to 1000 m
lMake sure that the cooling water fulfills the following
requirements:
–Temperature: 10 - 25 °C
–Overpressure: 2 - 5 bar (relative)
–Water hardness: < 5 ° dGH
NOTE: 1° (german degree = 1° dGH) = 1,78° (french degree) = 1,25 e
(english degree) = 17,9 mg/kg CaCO3 (american hardness)
–Minimum flow rate: 3 - 4 l/ min for the standard version
lMake sure that the cooling water is neutral and clean
lMake sure that the cooling water outlet is unpressurised
lMake sure that the nitrogen fulfills the following requirements:
–Overpressure: 1,5 bar
–Approximate flow rate: 10 - 22 l/ min
lMake sure that the ambient conditions correspond to the
protection class of the motor (according to nameplate)
lMake sure that the vacuum pump is placed on or fastened to a
horizontal surface
lMake sure that the vacuum pump is level
lMake sure that the vacuum pump is at least 1 m away from any
wall to ensure good cooling
lMake sure that the vacuum pump is easily accessible and that the
selected installation site fulfills the requirements for
assembly/dismantling
lMake sure that no temperature-sensitive parts (for example, of
plastic, wood, cardboard, paper, electronic parts) come into
contact with the hot surfaces of the vacuum pump
lMake sure that the installation site or assembly area is ventilated in
such a way that adequate cooling of the vacuum pump is ensured
CAUTION
The surface temperature of the vacuum pump can exceed 50°C
when the vacuum pump is in operation.
Danger of burns!
lMake sure that no-one can touch the vacuum pump accidentally.
If necessary, attach safeguard
lMake sure that the oil sight glasses (OSG 1, 2, 3) are easily
accessible
If oil changes are to be made on site:
uMake sure that the oil drain and oil filler are easily accessible
Inlet connection
lMake sure that the protection that was attached to prevent
penetration of particles during transport has been removed before
the vacuum pump is connected to the vacuum line
CAUTION
Do not put hands into the inlet aperture.
Risk of body damage!
CAUTION
The intake of liquids or solid particles can lead to the destruction of
the vacuum pump
If the sucked gas contains dusts or solid foreign bodies:
uMake sure that a filter or protective grating is installed at the
extraction point
lMake sure that the nominal diameter of the intake line is at least
equal to the diameter of the intake flange of the vacuum pump to
prevent a drop in the performance of the vacuum pump in the case
of a smaller cross-section
lMake sure that the vacuum pump is connected with leakproof lines
Installation and Commissioning
Page 10 0870760874 (En)
BC 1001 G

CAUTION
When the intake lines have been connected, make sure that the
system does not leak. Leakages of dangerous substances must be
prevented!
lMake sure that the intake lines are equipped with a shut-off device
upstream of the intake flange so that the flow of sucked gas can
be stopped
lMake sure that the intake lines do not exercise any force on the
intake flange. Mount bellows if necessary
lThe inlet flange has the following dimension:
–BC 1001 G: DN 100 ISO-K
In the case of long intake lines, the line cross-section should be larger
than the intake flange to prevent a drop in the performance of the
vacuum pump. If you have any doubts, contact your Busch
representative.
Discharge connection
CAUTION
Do not put hands into the outlet aperture.
Risk of body damage!
The following instructions for connection to the discharge only apply if
the sucked gas is discharged by the vacuum pump into a suitable
environment.
lMake sure that the protection that was attached to prevent
penetration of particles during transport has been removed before
the vacuum pump is connected to the vacuum line
lMake sure that the nominal diameter of the exhaust line is at least
equal to the diameter of the exhaust flange of the vacuum pump
to prevent a drop in the performance of the vacuum pump in the
case of a smaller cross-section
lMake sure that the vacuum pump is connected with leakproof lines
CAUTION
When the discharge lines have been connected, make sure that the
system does not leak. Leakages of dangerous substances must be
prevented!
lMake sure that the discharge line is mounted in such a way that
condensate cannot penetrate into the pump (siphon trap, gradient)
lMake sure that no shut-off devices are mounted in the discharge
line
lMake sure that the discharge lines do not exercise any force on the
discharge flange. Mount bellows if necessary
lThe discharge flange has the following dimension:
–DN 40 ISO KF
In the case of long discharge lines the line cross-section should be
larger than the discharge flange to prevent a drop in the performance
of the vacuum pump. If you have any doubts, contact your Busch
representative.
Cooling water connection
The cooling water is generally connected with a hose.
The cooling water outlet must be unpressurised.
Connection diameter: 3/8 NPT
Nitrogen connection
The nitrogen is connected with a pipe (leakproof against oxygen).
Connection diameter: 1/4 NPT
Installation and Commissioning
0870760874 (En) Page 11
Dimensional drawing BC 1001 G
BC 1001 G

Electrical connection/ Checks
lMake sure that the regulations of the Electromagnetic
Compatibility Directive 2014/30/EU as well as standard EN norms,
safety directives and especially local and national regulations are
observed (this is the responsibility of the manufacturer of the
system into which the vacuum pump is integrated according to the
Declaration of Conformity)
lMake sure that the main power supply corresponds to the data on
the nameplate of the motor
lMake sure that an overload cut-out according to EN 60204-1 is
provided for the motor
lMake sure that the drive of the vacuum pump is not disturbed by
any electric or electromagnetic interferences. If you have any
doubts, contact your Busch representative
Installation
Mounting
lMake sure that the “Necessary installation instructions” are
followed
lFasten or install the pump at its final installation site
Electrical connection
WARNING
Risk of electrocution, risk of damage.
Electrical installation must be performed by a suitably qualified
electrician who knows and follows the following regulations:
- IEC 364 or CENELEC HD 384 or DIN VDE 0100,
- IEC Report 664 or DIN VDE 0110,
- VBG 4 or corresponding national regulations on accident
prevention
Power wiring connection
Power wiring 4 poles
1 Phase L1
2 Phase L2
3Phase L3
4 Ground
lConnect the main cable on the socket, according to the following
figure
CAUTION
If the vacuum pump is operated with a motor that turns in the
wrong direction, it can be destroyed, even if this is the case for only
a short moment.
Make sure that the vacuum pump is connected correctly before
switching it on.
lDetermine rotation sense of the motor by using a measure tool or
putting a rubber plate on the inlet.
lPress on the start button
lMake sure that the vacuum pump draws in
lIf not, push the Emergency stop button
If the direction of rotation has to be changed:
uExchange two of the three feeder leads
Equipment connections (with options)
The information concerning the use of the Busch PLC and the Busch
LCD can be found in the Operation and Maintenance manual (Art.No.
0870758077).
Connection of the lines/ pipes
lConnect the intake lines
lConnect the discharge lines
lMake sure that all caps, safeguards and similar covers are mounted
lMake sure that the inlet and outlet for the cooling air are not
covered or closed and that the flow of cooling air is not impaired in
any way
Oil filling
The COBRA BC 1001 G vacuum pumps are generally dispatched with
oil already in the vacuum pump. Before vacuum pump first startup,
control the oil level. In the event of absence of one or the other of these
lubricants, please carry out the filling (see the chapter “Oil types” for
information on the recommended oils).
Installation and Commissioning
Page 12 0870760874 (En)
1 LCD serial wiring (RJ45), LCD1
2 LCD serial wiring (RJ45), LCD2
3 PC serial wiring (9 poles) (option)
4USB connection
5 Customer Network, Communication modbus RTU RS 232
6 Ethernet network connection (Busch Monitoring System)
(option)
7 Interface connection (50 poles) (option)
8 PID Interface (9 poles) (option)
BC 1001 G
Power connector on vacuum pump rear side
Phase L1 Phase L2
Phase L3
Ground
Lock

lPrepare the quantity of oil specified in the table “Oil quantity”
Oil filling NW 0090 A WY 0701 B
Oil quantity [Liter] 0,12 1,4
Oil type Busch VF 250, Art. No. 0831 131 400 (0,5l
@1 kg) (Busch YLC 250 B)
Oil filling on vacuum pump NW 0090 A
Oil filling on vacuum pump WY 0701 B
NOTE: The quantity of oil specified in the installation handbook is of
informative nature only. Check the oil level with the help of the various
oil sight glasses (OSG 1, 2, 3) on the vacuum pump.
CAUTION
Before you change the type of oil, make sure that the new type is
compatible with the old type. If necessary, flush the vacuum pump.
lUnscrew the oil filler cap (OFP)
lFill in oil
lMake sure that the oil level lies between the MIN and MAX
markings on the oil sight glasses
lMake sure that the seals of the oil filler cap are not damaged.
Replace them if necessary
lScrew on the oil filler cap hermetically tight
NOTE: It is easier to switch on the vacuum pump with cold oil when
the intake line is not closed or when the intake flange is not covered by
a rubber plate.
lStart the vacuum pump
If the intake line is equipped with a shut-off device:
uClose the shut-off device
If the intake line is not equipped with a shut-off device:
uPlace a rubber plate on the intake flange
lLet the vacuum pump run for a few minutes
lStop the vacuum pump and wait a few minutes
lMake sure that the oil level still lies between the MIN and MAX
markings on the oil sight glasses
If the oil level is below the MIN marking:
uFill in more oil
If the intake line is equipped with a shut-off device:
uOpen the shut-off device
If the intake line is not equipped with a shut-off device:
uRemove the rubber plate from the intake flange and connect
the intake line to the intake flange
CAUTION
In case of a vacuum pump filled with oil, make sure that by lifting
the inclination angle of the vacuum pump do not exceed 5° from
the horizontal. In case of too high inclination (>5°), risk of oil leak
within the work area
lMake sure before every transport using the appropriate lifting
mean that the inclination of the vacuum pump is less than 5°.
CAUTION
The vacuum pump must remain in a horizontal position when it has
been filled with oil.
Checking the direct cooling
The flow of the cooling water is checked by the flowmeter CWM. The
flowmeter must be connected in such a way that switching-on leads to
a warning at 2 l/min, when the flow drops below 1,5 l/min, the
vacuum pump must be stopped.
Checking the nitrogen supply
The flow of the nitrogen is checked by the flowmeter DGF. The
flowmeter must be connected in such a way that switching-on leads to
an alarm. The alarm limit can be adjusted depending on the type of
process.
Saving the operating parameters
As soon as the vacuum pump is working under normal conditions after
being switched on:
lMeasure the working current of the motor and save it as reference
value for all future maintenance and repair work
Recommendations on operation
Application
WARNING
The vacuum pump is designed for use under the conditions
specified here.
If these conditions are not met, there is a risk of damage to or total
destruction of the vacuum pump and its components!
The vacuum pump may only be switched on under the specified
conditions.
The COBRA BC vacuum pumps are designed for use in the field of
microelectronics and similar industries.
They can be used to draw in gases and gas mixtures.
Installation and Commissioning
0870760874 (En) Page 13
Oil drain plug (ODP) Oil sight glass (OSG) Oil sight glass (OSG)
Oil drain plug (ODP)Oil drain plug (ODP)
Oil sight glass
Oil fill plug (OFP)
Oil sight glass (OSG)
(OSG)
BC 1001 G

WARNING
When using toxic, inflammable and/or explosive gases, make sure
that the system corresponds in design to applicable local and
national safety regulations and that all applicable safety measures
are followed.
All product-specific safety regulations must be observed.
Solid particles must not get into the vacuum pump. Procedural errors
can result in the pump sucking in a certain quantity of liquid. If the
pump has sucked in liquid, a short drying time is necessary at the end
of the procedure.
The allowed maximum inlet gas temperature depends on the inlet
pressure and the type of gas: the lower the inlet pressure (Pa), the
higher the drawn gas temperature (TGas) can be.
The following indicative values for air can be considered:
– Pa > 50 mbar, TGas < 80°C
–Pa < 50 mbar, TGas < 200°C
The vacuum pump is intended for use in a potentially non-explosive
environment.
As far as temperature is concerned, the vacuum pump is suitable for
evacuation of a 300 liters tank. The vacuum pump is not suitable for
continuous duty at a pressure more or equal than 150 (hPa) mbar.
Caution, the operating cycle of 150 (hPa) mbar must not exceed more
than 5 min. For other applications, contact your Busch representative.
- Maximum inlet pressure: 1 bar (abs).
-With pump running at full speed, do not expose to inlet pressure
> 300 (hPa) mbar.
The vacuum pump is tight down to ultimate pressure.
CAUTION
The surface temperature of the vacuum pump can exceed 50 °C
when the vacuum pump is in operation.
Danger of burns!
The vacuum pump may not be touched when it is in operation. If
touching the pump is unavoidable, wait until the surface
temperature has cooled down or wear protective gloves.
CAUTION
The intensity of the noise of the vacuum pump is higher within a
certain area of the pump.
Risk of hearing damage.
Users must wear ear protection when spending a longer period of
time in the vicinity of a non-insulated vacuum pump.
CAUTION
The COBRA BC 1001 G vacuum pumps could be delivered without
oil, without cooling water.
Operation without oil will result in damage to the vacuum pump!
The vacuum pump must remain in a horizontal position when it
has been filled with oil.
CAUTION
The COBRA BC 1001 G vacuum pumps are always delivered
without oil, without cooling water.
Operation without coolants will result in damage to the vacuum
pump!
CAUTION
The cooling water flow, which is checked by the flowmeter CWM,
must be at least 3-4 l/min.
lMake sure that all caps, safeguards and similar covers are mounted
lMake sure that the safeguards are switched on
lMake sure that the inlet and outlet for the cooling air are not
covered or closed and that the flow of cooling air is not impaired in
any way
lMake sure that the system does not leak. Leakages of dangerous
substances must be prevented
lMake sure that the “Necessary installation instructions” are
followed and especially that adequate cooling is ensured
The following must be noted when the pump is shut down for a longer
period of time:
CAUTION
If there is a risk of frost, all the cooling water must be drained out of
the vacuum pump if the pump is shut down for a longer period of
time!
–Drain the cooling water
uPull off the connections for the inlet and outlet of the cooling
water
uDrain the cooling water completely
uIf necessary, drain the cooling water with the help of
compressed air to prevent any risk of frost or corrosion
Switching the vacuum pump on/ off
First start-up of the system
lMake sure that the “Necessary installation instructions” are
followed
If the system is equipped with a solenoid gate valve in the cooling
water circuit:
uOpen the solenoid gate valve
lMake sure that the cooling water flow is set correctly with the
valve CWR:
–The cooling water circuit (*standard) is used to cool the variators,
the motors and the DP and MB cylinders. The regulating valve
CWR of the cooling water flow is preset at 3-4 l/min.
lMake sure that the nitrogen flow is set correctly
–Nitrogen flow injected in the middle hole (8) is preset at 2 l/ min
and can be adjusted with valve DGR 2. Nitrogen flow injected in
the hole on cylinder endplate side is preset at 10 l/ min and can be
adjusted with valve DGR 1.
lSwitch on the vacuum pump
lMake sure that the system does not leak
If the system is equipped with a solenoid gate valve at the intake:
CAUTION
Do not open gate valve if booster is running at full speed (90 Hz).
Use "Automatic Load Lock"mode or "External Signal" on tool
interface to start/ stop boster (refer to Busch PLC manual).
Risk of primary pump damage.
uOpen the solenoid gate valve
Switching the system off
If the system is equipped with a solenoid gate valve at the intake:
uClose the solenoid gate valve
Installation and Commissioning
Page 14 0870760874 (En)
BC 1001 G

lSwitch off the vacuum pump
lShut off the nitrogen supply
lShut off the cooling water supply
If the system is equipped with a solenoid gate valve in the cooling
water circuit:
uClose the solenoid gate valve
lMake sure that the system is currentless
Maintenance
DANGER
In case the vacuum pump has conveyed gases that have been
contaminated with foreign materials that are dangerous to health,
the oil and condensates will also be contaminated.
These foreign materials can infiltrate the pores, recesses and other
internal spaces of the vacuum pump.
Danger to health when the vacuum pump is dismantled.
Danger to the environment.
Always wear protective clothing when carrying out maintenance
work.
Before any maintenance work, the inlet and outlet piping as well
as the vacuum pump itself must be flushed with nitrogen.
CAUTION
Only authorized personnel may carry out dismantling work on the
vacuum pump. Before work begins, the operator of the vacuum
pump must fill in a form or a “Declaration of Contamination of
Vacuum Equipment and Components” that provides information on
possible dangers and appropriate measures.
If this form has not been filled in completely and signed, the
vacuum pump may not be dismantled.
CAUTION
Before maintenance work is started, a safety area of at least 610
[mm] around the machine must be set up.
CAUTION
The surface temperature of the vacuum pump can exceed 50°C
when the vacuum pump is in operation.
Danger of burns!
Before starting maintenance work, make sure that the vacuum pump
has been switched off and that it cannot be switched on again
accidentally. Follow the shutdown procedure in the section “Lock
Out/ Tag Out procedure”:
–stop the pump with the LCD control (press on STOP button
during 10s)
–press on emergency stop button
–switch off the main circuit breaker
–switch off the customer’s power supply
–switch off the water and nitrogen quick connections (inlet first,
then outlet)
–put the label or warning board “Maintenance processing” on or
next to the pump
CAUTION
The oil temperature can reach a value of 100°C!
Danger of burns!
lMake sure that the oil circuit has been emptied before moving the
vacuum pump
lMake sure that there are no cleaning tools in the pump anymore
according to local and national regulations
Before pulling off the different connections, make sure that the intake
and exhaust lines of the vacuum pump correspond to atmospheric
pressure
When the maintenance work has been finished, follow the procedure
“Safety Lockout procedure”:
–take off the label or warning board “Maintenance processing”
–check the oil level according to the chapter “Checking the oil
level”
–switch on the main circuit breaker
–release the emergency stop button
–switch on the water and nitrogen quick connections (outlet first,
then inlet)
–make sure that the “Necessary installation instructions” are
followed
–start the pump with the LCD control (press on START button)
Maintenance program
NOTE: The maintenance intervals depend a lot on the individual
operating conditions. The intervals given below should be considered
initial guidelines which ought to be shortened or extended as
appropriate. In particularly heavy duty operation such as high dust
loads in the environment or in the process gas, it may become
necessary to shorten the maintenance intervals significantly.
Weekly:
lCheck the oil level and the colour of the oil (see “Checking the
oil”)
lCheck the cooling water flow (see “Checking the cooling water”)
lCheck the nitrogen flow (see “Checking the nitrogen”)
lInspect the vacuum pump for oil leaks - if there are leaks, repair
the vacuum pump (Busch)
lInspect the vacuum pump for leaks of cooling water - if there are
leaks, repair the vacuum pump (Busch)
Monthly:
In the case of operation in a dusty environment:
uMake sure that the operating room is clean and free of dust;
clean if necessary
lMake sure that the vacuum pump has been switched off and that
it cannot be switched on again accidentally
lCheck the electrical connections
lCarry out a visual inspection of the vacuum pump
Yearly:
lMake sure that the vacuum pump has been switched off and that
it cannot be switched on again accidentally
If the intake is equipped with a sieve:
uCheck the sieve at the intake and clean if necessary
lCheck the measuring and safety equipment for working order
If the discharge is equipped with a silencer:
uBleed the condensation of the silencer through the purge
system
If the discharge is equipped with a leak-protection non-return valve:
Maintenance
0870760874 (En) Page 15
BC 1001 G

uClean the leak-protection non-return valve
lCheck the ventilator filter (RF), clean if necessary
If the cooling water line is equipped with a filter:
uCheck the filter and clean or replace if necessary
lCheck the seals and replace if necessary
lCheck the intake and discharge lines and clean or replace if
necessary
Every 16 000 hours of operation, at the latest
after 4 years:
lDrain the oil (see “Draining the oil”)
lA main inspection of the vacuum pump (Busch)
Lock Out/ Tag Out procedure
lStop the pump with the LCD control (press on STOP button during
10s)
lPress on emergency stop button
lSwitch off the main circuit breaker
lSwitch off the customer’s power supply
lSwitch off the water and nitrogen quick connections (inlet first,
then outlet)
lPut the label or warning board “Maintenance processing” on or
next to the pump
Safety Lockout procedure
lTake off the label or warning board “Maintenance processing”
lCheck the oil level according to the chapter “Checking the oil
level”
lSwitch on the main circuit breaker
lRelease the emergency stop button
lSwitch on the water and nitrogen quick connections (outlet first,
then inlet)
lMake sure that the “Necessary installation instructions” are
followed
lStart the pump with the LCD control (press on START button)
Checking the oil
Checking the oil level
lMake sure that the vacuum pump has been switched off and that
it cannot be switched on again accidentally
lIndication of the oil level on the various oil sight glasses
If the oil level does not reach the MIN marking:
uTop up with oil (see “Refilling oil”)
If the oil level exceeds the MAX marking:
uCheck the condensate drain
lDrain the oil (see “Draining the oil”)
Refilling oil
NOTE: Oil does not normally have to be refilled outside the
recommended oil change intervals. A drop in the oil level indicates a
fault (see "Alarms and warnings" -> Busch PLC and Busch LCD).
CAUTION
Only fill in oil through the oil filler opening.
CAUTION
Danger of burns when the oil filler cap is open.
Danger of injuries when the oil filler cap is not screwed on properly.
Only unscrew the oil filler cap when the vacuum pump has been
switched off.
The vacuum pump may only be switched on when the oil filler cap
is properly closed and tight.
We recommend submitting the pump to a leakage rate test in order
to ensure the pump is leak tight.
lMake sure that the vacuum pump has been switched off and that
it cannot be switched on again accidentally
lUnscrew the oil filler cap (OFP)
lFill in oil up to the middle of the oil sight glass
lMake sure that the oil level lies between the MIN and MAX
markings on the oil sight glasses
lMake sure that the seals of the filler cap are not damaged and that
they sit properly. Replace them if necessary
lScrew on the filler cap again
Checking the colour of the oil
NOTE: The oil must be clear and transparent. A permanent milky
colour is an indication for contamination by foreign bodies. A dark
colour is an indication for oil that has been chemically altered or
contaminated by foreign bodies.
WARNING
Dark colored oil may indicate a hazardous pump condition which
could cause personal injury.
If dark oil similar to the example shown is observed, you have to
contact the Busch Customer Service without delay.
Oil change
DANGER
If the vacuum pump has pumped gases that were contaminated
with foreign bodies that are hazardous to health, the oil is also
contaminated with these foreign bodies.
There is a health hazard when changing contaminated oil.
There is also a danger to the environment.
Wear protective clothing when replacing contaminated oil.
Contaminated oil must be treated specially and must be disposed
of according to applicable regulations.
Maintenance
Page 16 0870760874 (En)
BC 1001 G

Draining used oil
NOTE: After switching off the vacuum pump at normal operating
temperature wait no more than 20 minutes before the oil is drained.
lMake sure that the vacuum pump is switched off and cannot
accidentally be switched on again
lMake sure that the vacuum pump is vented to atmospheric
pressure
lPut a drain tray underneath the oil drain plugs (ODP)
lRemove the oil drain plugs (ODP)
lCarefully remove the drain plugs
lDrain the oil
lBecause of wear and tear on the seals replace the current drain
plugs with new ones
When the oil flow has stopped:
uClose the oil drain plugs (ODP)
lSwitch on the vacuum pump for a few seconds
lMake sure that the vacuum pump is switched off and cannot
accidentally be switched on again
lRemove the oil drain plugs again and drain any remaining oil
lCheck that no metal swarf sticks to the magnet of the drain plug,
clean if necessary
lRefit the oil drain plugs and tighten up
lDispose of the used oil in compliance with applicable regulations
CAUTION
Because the ends of the drain plugs are magnetic, metal swarf can
stick to them. Always clean away this swarf when removing the
drain plugs.
Because of wear and tear of the seals, it is recommended to replace
the drain plugs whenever the oil is changed.
Filling in new oil
lPrepare the quantity of oil needed (see “Oil type/ quantity”)
WARNING
The use of chemically contaminated or polluted oil can lead to
hazardous pump conditions which could cause personal injury.
NOTE: The quantity of oil specified in the installation handbook is of
informative nature only. Check the oil level with the help of the various
oil sight glasses on the vacuum pump.
lMake sure that the drain plugs have been fitted properly and that
they do not leak
CAUTION
Only fill in oil through the oil filler opening.
lUnscrew the oil filler cap (OFP)
lFill in oil up to the middle of the oil sight glass
lMake sure that the oil level lies between the MIN and MAX
markings on the oil sight glasses
lMake sure that the seals of the filler cap are not damaged and that
they sit properly. Replace them if necessary
lScrew on the filler cap again
Checking the cooling water
Checking the cooling water flow
lCheck the cooling water flow regularly
If the flow drops, check for leaks
uMake sure that the specifications of the cooling water are
followed
Checking the nitrogen
Checking the nitrogen flow
lCheck the nitrogen flow regularly
If the flow drops, check for leaks
uMake sure that the specifications of the nitrogen are followed
Checking the current consumption
lCheck the current intensity of the motor
An increased intensity is an indication for a fault (see
“Troubleshooting”)
Checking the silencer (accessory)
lMake sure that the condensate does not collect at the exhaust of
the vacuum pump
lDrain the condensate and collect it in a container
lDispose of the condensate according to applicable environmental
protection regulations
lCheck the silencer regularly and clean it if necessary
Checking the leak-protection
non-return valve (accessory)
lCheck the leak-protection non-return valve regularly and clean it if
necessary
CAUTION
Wear protective clothing when carrying out maintenance work on
the silencer and leak-protection non-return valve.
There could still be residues of contamination.
Overhaul
CAUTION
Inappropriate maintenance work on the vacuum pump can damage
the pump.
Danger of explosion!
If requirements are not met, the vacuum pump may not be switched
on!
Should work exceed the dismantling work described in this
handbook, it may only be carried out by authorized persons.
Overhaul
0870760874 (En) Page 17
BC 1001 G

DANGER
In case the vacuum pump has conveyed gases that have been
contaminated with foreign materials that are dangerous to health,
the oil and condensates will also be contaminated.
These foreign materials can infiltrate the pores, recesses and other
internal spaces of the vacuum pump.
Danger to health when the vacuum pump is dismantled.
Danger to the environment.
Prior to shipping, the vacuum pump must imperatively be
decontaminated and the degree of contamination must be
documented in a declaration of decontamination (“Declaration of
Contamination of Vacuum Equipment and Components”), which
can be downloaded from www.buschvacuum.com.
Busch service will only accept vacuum pumps that come with a
completely filled in and legally binding signed form.
Removal from service
Temporary removal from service
Before disconnecting the intake and exhaust lines and switching off the
cooling water and nitrogen lines, make sure that the lines have
adjusted to atmospheric pressure
Recommissioning
lMake sure that the various protective elements, stoppers or
adhesive tapes have been removed
lSwitch on the vacuum pump by following the procedure described
in the chapter “Installation and Commissioning”
Dismantling and Disposal of the
vacuum pump
DANGER
In case the vacuum pump has conveyed gases that have been
contaminated with harmful foreign material which are harmful to
health, the oil and the condensates will also be contaminated with
harmful foreign material.
These foreign materials can infiltrate the pores, recesses and other
internal spaces of the vacuum pump.
Danger to health during dismantling of the vacuum pump.
Danger to the environment.
During dismantling of the vacuum pump protective equipment and
clothing must be worn.
Prior to shipping, the vacuum pump must imperatively be
decontaminated and the degree of contamination must be
documented in a declaration of decontamination (“Declaration of
Decontamination”), which can be downloaded from
www.buschvacuum.com.
Used oil and condensates must be disposed of separately in
compliance with applicable environmental regulations.
When the product has reached the end of its lifetime:
–decontaminate the vacuum pump
CAUTION
Only authorized personnel may carry out dismantling work on the
vacuum pump. Before work begins, the operator of the vacuum
pump must fill in a form or a “Declaration of Decontamination” that
provides information on possible dangers and appropriate measures.
If this form has not been filled in completely and signed, the
vacuum pump may not be dismantled.
–drain the oil
udispose of the oil according to local environmental protection
regulations
–begin dismantling the vacuum pump
CAUTION
During dismantling of the vacuum pump protective equipment and
clothing must be worn
udispose of the vacuum pump as scrap metal
–dispose of the individual parts of the machine according to local
regulations
A lithium battery is present inside the PLC:
–eliminate the lithium battery according to local and national
regulations in place, relating to environment
Removal from service BC 1001 G
Page 18 0870760874 (En)

Oil type/ quantity
Oil type
lMake sure that the oil type corresponds to specification:
–Busch YLC 250 B, Art. No. 0831 131 400 (0,5 l @1 kg)
WARNING
The use of chemically contaminated or polluted oil can lead to hazardous pump conditions which could cause personal injury.
Oil quantity
The quantity of oil specified in the following table is of informative nature only. Check the oil level with the help of the various oil sight glasses on
the vacuum pump.
Pump type DP pump (liters) MB pump motor side (n°2 - liters) MB pump gear side (n°1 - liters)
BC 1001 G 0,12 l 0,6 l 0,8 l
BC 1001 G Oil type/ quantity
0870760874 (En) Page 19

Technical data
Technical data BC 1001 G
Effective suction capacity m3/h (cfm) 870 (512)
Ultimate pressure Torr
mbar 2 x 10-3
3 x 10-3
Nominal motor rating DP (50 Hz) kW 1,5
Nominal motor rating MB (90 Hz) kW 2.9
Electric power capacity at ultimate
pressure kW kW idle mode 1.7
1.2
Nominal motor speed DP min-1 3000
Nominal motor speed MB min-1 5400
Noise level (EN ISO 2151)*dB(A) < 62
Ambient temperature °C
°F 0 - 40
32 - 104
Maximale counter pressure Discharge bar 0.2
Cooling water requirement l/ min min. 3.0 - 4.0
Cooling water pressure bar/ DP2 ... 5
Nitrogen requirement l/ min 0 - 70
Nitrogen overpressure bar 1.5
Oil quantity l 1.52
Weight kg 310
* with silencer at exhaust
Technical data
Page 20 0870760874 (En)
BC 1001 G