Re-engineered range of small compressors

Atlas Copco has redesigned and upgraded its fixed speed compressor, the GA 11+-30, and the variable speed version, the GA 15-30 VSD. In order to better match airflow to users’ requirements and eliminate the need to oversize, it has introduced a 26 kW model which is also available with the new-generation VSD.

The GA+/GA VSD range has improved free air delivery (FAD), which allows users to select smaller compressors for the same applications, saving money and energy. The GA+ has increased FAD by a minimum of 7% and even up to 17% compared to the previous GA models. For the GA VSD, the improvement spans from 9 to 24%.

Specific energy requirement (SER) is the true measure of how much electricity a compressor will use. With improvements of 3-11% for the GA+ and 11-13% for the GA VSD, the compressors have one of the best SERs achievable today.

Energy consumption can be reduced even further in the full feature version by integrating the dryer in the unit.

The new-generation technology of the VSD increases performance, shows lower sensitivity to dust and achieves standard low harmonic distortion. Energy savings of 35% on average can be obtained by adopting a VSD model (instead of a GA+), resulting in faster payback times. Additionally, 80% of the compressor’s energy consumption can be recuperated (eg, for water and air heating in industrial processes or for direct use on site) with the now standard option to connect an energy recovery system.

With a very small footprint, each of the GA+/GAVSD models in this range now takes up even less space. They are characterised by the low noise levels, with the GA 11+ as silent as 63 dBA.

The GA+/GA VSD compressor range is equipped with the graphical Elektronikon control and monitoring system. Its unique control algorithms save energy by operating the compressor at optimal levels while the advanced timers optimise servicing intervals.

Energy consumption is further reduced by the Saver Cycles that control both the fan and optional dryer.