Gas Discharge
The discharged air must flow unobstructedly. It is not permitted to
shut off or throttle the discharge line or to use it at as a pressurised
air source.
The following guidelines for the discharge line do not apply, if the aspi-
rated air is discharged to the environment right at the vacuum pump.
●
Make sure that the discharge line fits to the gas discharge (k) of
the vacuum pump
In case of using a pipe:
◆
Make sure that the pipe will cause no stress on the vacuum
pump’s connection, if necessary use bellows
●
Make sure that the line size of the discharge line over the entire
length is at least 2"
In case the length of the discharge line exceeds 2 m it is prudent to use
larger line sizes in order to avoid a loss of efficiency and an overload of
the vacuum pump. Seek advice from your Busch representative!
●
Make sure that the discharge line either slopes away from the
vacuum pump or provide a liquid separator or a drip leg with a
drain cock, so that no liquids can back up into the vacuum pump
Electrical Connection / Controls
●
Make sure that the stipulations acc. to the EMC-Directive
89/336/EEC and Low-Voltage-Directive 73/23/EEC as well as the
EN-standards, electrical and occupational safety directives and the
local or national regulations, respectively, are complied with (this is
in the responsibility of the designer of the machinery into which
the vacuum pump is to be incorporated;
Ú
page 14: note in the
EC-Declaration of Conformity).
●
Make sure that the power supply for the drive motor is compatible
with the data on the nameplate of the drive motor
●
Make sure that an overload protection according to EN 60204-1 is
provided for the drive motor
●
Make sure that the drive of the vacuum pump will not be affected
by electric or electromagnetic disturbance from the mains; if neces-
sary seek advice from the Busch service
In case of mobile installation:
◆
Provide the electrical connection with grommets that serve as
strain-relief
Installation
Mounting a NEMA-Motor with
BoWex-Coupling
For certain markets the vacuum pump is available without motor, but
with a NEMA-adaptor flange and a BoWex-coupling.
●
Remove the NEMA-adaptor flange (I) from the vacuum pump
●
Pull the elastomer part (V) together with the hub (III) off the shaft
of the vacuum pump
●
Mount the NEMA-adaptor flange (I) on the motor (the bolts (II)
are not part of the Busch scope of delivery)
●
Undo the cylinder screws (VI) and remove the elastomer part (V)
from the hub (III)
●
Make sure that the parallel key is inserted into the motor shaft
●
Push the hub (III) onto the motor shaft such that the mounting
face of the hub (III) will be located 16±1 mm before the mounting
face of the NEMA-adaptor flange (I) (
Ú
sketch)
●
Fasten the hub (III) on the motor shaft using the set screw (IV)
●
Apply thread locking agent on the threads of the cylinder
screws (VI)
●
Mount the elastomer part (V) on the hub (III) with the cylinder
screws (VI) and tighten the cylinder screws with 14 Nm
●
Mount the motor on the vacuum pump
Mounting
●
Make sure that the Installation Prerequisites (
Ú
page 5) are com-
plied with
●
Set down or mount the vacuum pump at its location
Checking Synchronising Gear Oil
The vacuum pump is delivered with oil filled synchronising gear.
The level shall be slightly above the middle of the sight glass (e, 76).
●
Check on the sight glass (e, 76) that the proper amount of oil is
filled
Connecting Electrically
WARNING
_ab
Risk of electrical shock, risk of damage to equipment.
Electrical installation work must only be executed by qualified per-
sonnel that knows and observes the following regulations:
- IEC 364 or CENELEC HD 384 or DIN VDE 0100, respectively,
- IEC-Report 664 or DIN VDE 0110,
- BGV A2 (VBG 4) or corresponding national accident prevention
regulation.
CAUTION
_a
The connection schemes given below are typical. Depending on the
specific order or for certain markets deviating connection schemes
may apply.
Risk of damage to the drive motor!
The inside of the terminal box shall be checked for drive motor con-
nection instructions/schemes.
Note
: For the connection of a drive with integrated frequency inverter
see the separate operating instructions!
●
Electrically connect the drive motor
●
Connect the protective earth conductor
Connection Scheme Three-Phase Motor
Delta connection (low voltage):
Installation and Commissioning
MM 1324, 1202, 1252, 1322, 1200, 1250, 1320 AV
page 6
0870133276 / 070328
I
II
III
IV
V
VI
