Product Description | 2
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2.1 Operating Principle
The machine works on the rotary vane principle.
The oil seals the gaps, lubricates the vanes and takes away compression heat.
Exhaust filters separate the oil from the discharged gas.
The machine is cooled by an air-oil heat exchanger (AHE). Due to the pressure differen-
tial, the oil naturally circulates in a closed circuit from the vacuum pump (VP) to the air-
oil heat exchanger.
2.2 Application
The machine is intended for the suction of air and other dry, non-aggressive, non-toxic
and non-explosive gases.
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.
The machine is designed for indoor installation, in case of outdoor installation, ask your
Busch representative in order to take specific precautions.
The machine is capable of maintaining ultimate pressure, see Technical Data [►66].
The machine is suitable for continuous operation.
Permitted environmental conditions, see Technical Data [►66].
2.3 Standard Features
2.3.1 User Interface
A user interface, also termed human-machine interface (HMI), allows the control, monit-
oring and configuration of the machine via a 7.5” touchscreen.
Further information in the chapter Description of User Interface Functions [►10].
2.3.2 Acoustic Cabinet
Stylish and functional, the acoustic cabinet (ACA) significantly reduces the sound emitted
by the vacuum pump.
2.3.3 Control Unit
The control unit is an electrical cabinet where a variable-frequency drive, a PLC and
other electrical components are integrated.
It also supplies the air-oil heat exchanger (AHE) with electrical current.
The power supply must be connected to it, see Electrical Connection [►27].
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