GA(W) and GR(W) are oil-injected screw compressors, driven by an electric motor and enclosed in sound-
insulated bodywork.
GA110 up to GA500 and GR110 up to GR200 are air-cooled compressors.
GA110 W up to GA500 W and GR110 W up to GR200 W are water-cooled compressors.
GA are single-stage compressors.
The following features are available as an option:
Full-Feature
A refrigerant dryer is fully integrated into the bodywork of the compressor. This "all-in-one" feature reduces
the required space for installation and provides savings on piping installation costs.
DD filter
The compressor is provided with an integrated filter of the DD type to limit carry-over of solid particles and
oil. By integrating a DD filter, the compressor delivers Quality Air according to ISO 8573-1, Class 2.4.2.
OSD
The OSD (Oil Separating Device) separates oil residues from condensate. The clean water can be discharged
down the drain without any further treatment. The separated oil is collected and can be disposed of according
to prevailing regulations.
Electronic drain
The EWD (Electronic Water Drain) assures proper draining of condensate and prevents water from entering
the compressed air net. For any malfunction of the draining process, the EWD generates a warning message
on the display of the Elektronikon regulator.
Energy recovery
The compressor is provided with an Atlas Copco energy recovery system to recover the major part of the
compression heat in the form of hot water without any influence on the compressor performance.
Oil containing frame
This frame is installed under the machine and will collect oil from occasional leakage and avoid oil spreading
over the floor.
Modulating control
The modulating control system is designed to maintain a narrow net pressure band by throttling the air inlet,
thus reducing the air flow (50% - 100%).
Heavy-duty air intake filter
A two-stage heavy-duty air intake filter is provided and allows the compressor to operate in heavily
contaminated surroundings (e.g. cement or mining industry). The larger dust particles are collected in the first
stage of the filter. The filter efficiency (SAE fine) is 99% at 1 micrometer (0.0004 in) and 99.9% at 3
micrometer (0.0012 in).
Instruction book
12 2920 1475 06
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