2 General description
2.1 Introduction
General
General view
Description of GA VSD+ compressors
GA VSD+ (Variable Speed Drive) compressors are single-stage, oil-injected screw compressors
driven by an interior permanent magnet (English: Interior Permanent Magnet (IPM)) motor. The
compressors deliver pulsation-free air. By continuously matching the speed of the drive motor to
the air net pressure, the compressor optimizes energy consumption and reduces the operating
pressure band.
GA VSD+ AC compressors are air-cooled.
GA VSD+ WC compressors are water-cooled.
The following options are available:
SPM monitoring
A number of vibration sensors are provided on the drive motor and compressor element. The
readings can be called up on the display of the Elektronikon regulator.
Instruction book
12 9829 3178 63
Energy recovery
The compressor is provided with an Atlas Copco energy recovery system to recover the major
part of the compression heat and heat losses of the drive motor gathered in hot water without any
influence on the compressor performance.
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