The following instructions for connection to the discharge only apply if
the drawn gas is discharged by the vacuum pump into a suitable envi-
ronment.
l
Make 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
l
Make 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
l
Make 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!
l
Make sure that the discharge line is mounted in such a way that
condensate cannot penetrate into the pump (siphon trap, gradient)
l
Make sure that no shut-off devices are mounted in the discharge
line
l
Make sure that the discharge lines do not exercise any force on the
discharge flange. Mount bellows if necessary
l
The discharge flange has the following dimension:
–
DN 63 ISO-K
In the case of long discharge lines the line cross-section should be lar-
ger than the discharge flange to prevent a drop in the performance of
the vacuum pump. If you have any doubts, contact your Busch repre-
sentative.
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
Electrical connection/ Checks
l
Make 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)
l
Make sure that the mains power supply corresponds to the data on
the nameplate of the motor
l
Make sure that an overload cut-out according to EN 60204-1 is
provided for the motor
l
Make 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
l
Make sure that the “Necessary installation instructions” are
followed
l
Fasten 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
CAUTION
The circuit diagrams described below conform to the standard.
Other circuit diagrams might be used. This depends on the
particular order and the market.
Risk of damage to the motors!
Check the connection of the motors inside the terminal box
according to the circuit diagram.
Motor of screw pump DS is connected at factory.
CAUTION
When connecting up the wires into the terminal box: please make
sure the tightening torque of 2 Nm is adhered to and check with a
calibrated torque wrench (Nuts M6).
Three phase motor connection
Star-star connection (Low voltage)
DS 3010 E
Installation and start-up
0870771509 (En)
Page 11
T9
T8
T7
T6
T7
T5
T3
T1
T2
T4
P1
P2
P3
P4
T7
T8
T9
T1
T2
T3
L1
L3
L2
T4
T5
T6
