Atlas Copco Oil-injected Rotary Screw Compressors

GA 7-90 VSD® 7-90 kW/9-120 hp

First in Mind—First in Choice™

Atlas Copco: Customized Quality Air Solutions through Innovation, Interaction and Commitment.

Total capability, total responsibility

Right at the heart of your business, Atlas Copco

delivers quality compressed air for superior

operational capacity. From compressed air

generation to point of use, you can choose from

our wide range of products to create a complete

compressed air system tailored to your specific

needs. All Atlas Copco products are engineered

to integrate seamlessly, ensuring the highest level

of reliability and energy efficiency. As a result,

Atlas Copco can take full responsibility for your

compressed air infrastructure with a guarantee

of best-in-class quality. With a global presence in

over 150 countries, we can provide an unrivalled

service to maintain and continually improve your

compressed air system performance.

Backed by 100 years at the forefront of compressed

air, Atlas Copco products offer the finest quality

and efficiency. Our goal is to be First in Mind—First

in Choice™. That is why Atlas Copco’s pursuit of

innovation never ceases, driven by the dedication

to meet and exceed your demands. Always

working with you, we are committed to providing

the customized air solution that is the driving force

behind your business.

Integrated onto the production floor, Atlas Copco’s GA WorkPlace Air System™ provides a dependable flow of compressed air directly to the point of use. No need for a separate compressor room or an elaborate and costly piping system. Built to perform in harsh environments with the highest efficiency, the GA keeps your production running smoothly and reliably.

Powerful efficiency

Air system integrAtionThe GA WorkPlace Air System can be placed where you need it: the point of use. Its low noise operation and integrated air treatment equipment eliminate the need for a separate compressor room – reducing piping costs and internal system pressure drop. GA VSD compressors are delivered ready for use, reducing installation costs to a minimum.

reduced energy costsThe cost of compressed air can represent over 40% of your total electrical costs. Atlas Copco wants to help you spend less. Our GA VSD (Variable Speed Drive) compressors can reduce energy costs by an average of 35% and overall compressor lifecycle costs (LCC) by an average of 22% by tuning compressor capacity to the air demand. The resulting energy savings have a substantial environmental impact, reflecting Atlas Copco’s dedication to safeguarding a healthy future for the generations to come.

Assured reliAbilityThe GA is designed, manufactured and tested in accordance with ISO 9001, ISO 14001 and ISO 1217, Ed. 3, Annex C. Ensuring a long and trouble free life at the lowest operating cost, the GA contains the latest generation of Atlas Copco’s patented oil-injected screw element. Engineered to provide reliability even in extreme ambient temperature conditions, the GA takes reliability to a new level.

the gA Vsd reduces energy costs by:

Energy can represent over 70% of a compressor’s lifecycle costs (LCC). Generating compressed air can account for more than 40% of a plant’s total electricity bill. Most production environments have a fluctuating air demand depending on the time of day, week, or even months per year. With Atlas Copco’s VSD (Variable Speed Drive) technology mirroring compressed air requirements, fluctuating demand no longer equals high energy costs.

Traditional compressors working with a full load, no load control operate between two set pressure points. When maximum pressure is reached the compressor goes off load. During periods of medium to low air demand, the no load power consumption can be excessive – wasting large amounts of energy.

Because there is no unnecessary power generated, the GA VSD can reduce energy costs by 35% or more. Lifecycle costs (LCC) of the compressor can be reduced by an average of 22%. In general, the extra cost of a VSD compressor compared to a fixed speed one can be earned back after just one to two years.

Standard Costs

Air Demand

Air DemAnD

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enerGY COST

The hIgh PrICe of fluCTuATIng DemAnD

VSD Costs

Air DemAnD

Time

enerGY COST

Air Demand

VSD: VArIAble Volume, ConTrolleD CoSTS

Driving down energy costs

• Eliminating the inefficient transition period from full to no load power.

• Avoiding excessive off load power consumption.

• Maintaining the net pressure band to within 0.10 bar, 1.5 psi.

• Reducing overall average working pressure.

• Minimizing system leakage due to a lower system pressure.

• Increasing flexibility with soft starting gradual motor ramp-up to avoid electricity surges.

• Offering flexible pressure selection from 4 to 13 bar with electronic gearing to ensure lowered electricity costs.

VSD (Variable Speed Drive) technology mirrors air usage – automatically adjusting the motor speed depending on demand. Lowered system pressure minimizes energy use across the production to reduce energy costs. With VSD technology, Atlas Copco has made major energy cost savings a reality.

VSD: Variable volume, controlled costs

operating at lowest possible energy use, the gA VSD helps to protect the environment for future generations.

lCC of A STAnDArD ComPreSSor

Installation

maintenance

Investment

energy Consumption

lCC of A VSD ComPreSSor

Installation

maintenance

Investment

energy Consumption

Average 35% energy Savings

gA 11 VSD

gA 90 VSD

At the forefront of innoVAtion• Introduced in 1994, Atlas Copco VSD compressors build

upon a long history of pioneering compressor technology.

intensiVe co-engineering • The drive motor and inverter have been designed by one

manufacturer and are perfectly tuned to each other through close cooperation between AC engineers and supplier.

ultimAte energy sAVings• As the VSD motors are especially designed for uncompromised

reliability with the ability to start up against back pressure, there is no blow off of pressurized air during normal operation. Compared to other frequency driven compressors, this results in increased energy savings.

Assured reliAbility• Atlas Copco VSD compressors make use of the most advanced

technology. As opposed to most frequency driven compressors which come with standard motors and suffer from current imbalance, our compressor solutions contain specific symmetrical and shielded motor power cables that omit any electromagnetic interference of nearby equipment and current erosion of the motor bearings.

electromAgnetic compAtibility• EMC filters included to assure proper operation conditions

according to EMC directive 89/336EEC.

high quAlity performAnce• Integration of line reactors to assure high power factor

of the machine and safeguard the quality of the electricity supply from distortion.

stAte-of-the-Art control• Applying the latest converter technology, VSD compressed air

solutions boast sophisticated control features lowering the peak currents and keeping the inverter and motor running much cooler compared to other frequency driven compressors.

Engineered for absolute reliability, Atlas Copco’s GA VSD compressed air solutions deliver the compressed air that keeps your production running. Every GA system illustrates our continued commitment to providing cost-effective air solutions that ensure a reliable source of quality compressed air. The best possible match of air production to air demand: that is what Atlas Copco’s GA VSD compressors stand for.

gA 22 VSD

Built to last

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Protecting your production

Untreated compressed air contains moisture, aerosols and dirt particles that can damage your air system and contaminate your end product. Resulting maintenance costs can far exceed air treatment costs. We believe in effective prevention.

increAse your production reliAbilityLow quality air heightens the risk of corrosion in your system, which can lower the life span of your air tools and production equipment. The GA VSD’s filtration process produces clean air that enhances your system’s reliability, avoiding costly downtime and production delays.

protect the enVironmentWith leaks and energy waste minimized and the unsafe disposal of untreated condensate eliminated, you can safeguard the environment and comply with stringent international regulations.

integrAted purityThe filters and integrated refrigerant-type air dryer (IFD) efficiently remove moisture, aerosols and dirt particles to protect your investment. This quality air expands the life of equipment, increasing efficiency and ensuring quality in your final product.

Comparing compressed air solutions

As opposed to traditional compressor set-ups, Atlas Copco’s GA WorkPlace Air System™ compressors effortlessly fit onto your work floor. Designed to give the most efficient source of compressed air within a production environment, they provide you with an all-in-one package that will have your production running smoothly for years to come and offers an entire range of advantages from lower installation costs to reduced energy costs.

sAfeguArd your product quAlityCompressed air coming into contact with your final products should not affect their quality. The GA VSD provides the clean, dry air that will protect your product’s reputation in the marketplace.

reduce your energy costsClean, treated air reduces the risk of corrosion and leaks in your compressed air system. A 3 mm leak could easily add up to €1800 to your energy bill annually.

configure your gA Vsd for the Air quAlity you need

iso quAlity clAss

dirt pArticle siZe

WAter pressure deW point

oil concentrAtion

3.–.4 3 microns – 3 ppm

3.4.4 3 microns +3ºC, 37ºF 3 ppm

2.4.2 1 micron +3ºC, 37ºF 0.1 ppm

1.4.1 0.01 microns +3ºC, 37ºF 0.01 ppm

GA WorkPlace

GA WorkPlace FF with IFD

GA WorkPlace FF with IFD & Class 2 integrated filter

GA WorkPlace FF with IFD & Class 1 integrated filters

trAditionAl compressor set-up

Generated by the compressor: ± 10 bar Used at the point of use: ± 8 bar

extra savings on top of VSD energy savings

loW noise operAtion

no need for dedicAted compressor room

minimiZed instAllAtion costs

limited internAl system pressure drop

integrAted Air And condensAte treAtment equipment

reduced piping costs

single point connections

single point monitoring

WorKplAce Air system™

Generated by the compressor: ± 8.3 bar Used at the point of use: ± 8 bar

high pressure drop Across the system

eXternAl filtrAtion equipment/dryer

elAborAte And costly piping system

multiple connections And Air leAKs

multiple monitoring points

high noise operAtion

sepArAte compressor room

rAised instAllAtion costsPressure loss: ± 2 bar

Pressure loss: limited

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centrAl controlThe Elektronikon’s Multiple Compressor Control manages up to four compressors simultaneously. The result is a substantial reduction in system pressure and energy consumption, in addition to minimal compressed air leakage and a more stable pressure across the network.

Total control, assured efficiency

The Elektronikon operating system provides control and monitoring to increase your compressor’s efficiency and reliability. Easily expandable with extra sensors, digital inputs and internet communication functions, the Elektronikon can be adapted to your specific needs – offering simple, central monitoring and control of up to four compressors. For optimal ease of use,

the display can be set to 27 different languages. To maximize energy efficiency, the Elektronikon controls the main drive motor and regulates system pressure within a predefined and narrow pressure band. With a simple push of a button, you can remotely start and stop, load and unload the compressor.

sAVer cycleSaver cycle technology* reduces the energy consumption of the integrated refrigerant dryers in light load applications. Using an ambient sensor to monitor the required dew point suppression, the Elektronikon starts and stops the dryer when the compressor has stopped – minimizing energy use and protecting the air system from corrosion.

* Applicable for GA 37-90 VSD.

duAl pressure set pointThe production process creates fluctuating levels of demand which can create energy waste in low use periods. The Elektronikon can manually or automatically

create two different system pressure bands to optimize energy use and reduce costs at low use times.

The elektronikon continuously monitors critical parameters. monitoring features include service and warning indications, error detection, compressor shut-down and maintenance scheduling.

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How much can you save?In the face of the rapidly increasing worldwide demand for energy and the growing scarceness of it, becoming more autonomous is of major importance for many production facilities. At Atlas Copco we are committed to help our customers become more independent in this future energy-scarce world.

limited costsAtlas Copco’s Variable Speed Drive compressors give proof of our pledge and minimize the power consumption of the compressed air systems most factories need to run their applications.

reducing your costsUsing innovative real-time measuring equipment and sophisticated analysis software, Atlas Copco engineers can help you map the load/air demand profile of your current compressor installation and demonstrate the potential energy savings using Atlas Copco’s VSD compressors. This unique service allows you to obtain full control of your compressed air system and make conscious future investment decisions.

Data loggers measure the actual demand profile of the currently installed compressors and feed the simulation software with real on-site measurements.

The simulation software configures the data, visualizes the load profile in time and immediately shows the energy inefficiency of the measured compressor. In a next step, the Atlas Copco VSD compressor energy savings can be simulated and a detailed report of the actual versus the optimal compressed air system can be generated.

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With the GA VSD, Atlas Copco does not just offer the most reliable and efficient compressors. From filter kits to a complete piping installation, Atlas Copco can take responsibility of your entire compressed air system to provide you with best-in-class air. Choose from a wide range of Atlas Copco after sales products and services that will have your GA VSD performing at its best for years to come. Qualified Atlas Copco support is available in over 150 countries.

genuine pArts & lubricAntsDon’t compromise your investment in quality by buying parts that are not manufactured according to Atlas Copco’s standards of excellence. Only Atlas Copco genuine parts can deliver our well-known quality, durability, and low energy and oil consumption. Atlas Copco lubricants ensure that your GA VSD continues to run smoothly.

serViceplAnChoose a Total Responsibility, Preventative Maintenance or Inspection Plan to get the scheduled maintenance to keep your compressor operating trouble free. Rest assured that Atlas Copco can offer its 24/7 backup to keep your production running.

AirmonitorMonitor the performance of your GA VSD at any time from your desk, or let your local Atlas Copco center do it for you. With AIRmonitor™, you check your compressed air system online, immediately receiving warning indications and even remotely taking preventive action to avoid downtime.

AirnetExpect the highest efficiency from your GA, and the piping built around it. AIRnet™ safely delivers high-quality compressed air from point of generation to point of use. Separate workplaces are effortlessly connected. Fixed to walls or ceilings, AIRnet’s range of fittings lets you custom-build a compressed air system specific to your production needs.

Peace of mind Optimize your system

The GA VSD can be tailored to your needs. From an integrated dryer and filter to rain protection, all optional parts are available to further optimize the GA VSD’s performance, or to simply tailor it to your specific production environment.

* FF units only

** Required for Chinese, Korean and Japanese characters

*** FF units: HAV limited to 50°C, 122°F

gA 7-11 Vsd

gA 15-30 Vsd

gA 37-55 Vsd

gA 75-90 Vsd

Air treAtment

Integrated filter kit class 1* • • • •

Integrated filter kit class 2* • • • •

Dryer bypass* • • • •

condensAte treAtment

Integrated oil/water separator (OSD) • • • •

Electronic water drain (EWD) on coolers • • Standard Standard

protection

Oil retaining frame • • • •

Phase sequence relay Standard Standard Standard Standard

Freeze protection N/A N/A • •

Heavy duty air inlet filter • • Standard Standard

EMC (electromagnetic compatibility) filter Standard Standard Standard Standard

Harmonic line reactors to protect the quality of the power supply

Standard Standard Standard Standard

public WorKs

Rain protection • • • •

Main power isolator switch • • • •

Lifting device • • • •

communicAtionAIRmonitor • • • •

High-resolution graphical display for Elektronikon** • • • •

oilsFood grade oil • • • •

Roto – Xtend duty oil • • • •

generAl optionsEnergy recovery N/A • • •

Special canopy color • • • •

High ambient temperature versions (HAV 55°C, 131°F ***)

N/A N/A • •

IT ancillaries • • • •

Providing easy access to all components, the gA VSD is built to facilitate maintenance.

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oil

Compressed air without free water

Wet compressed air

Dry compressed air

Water

refrigerant gas/liquid mixture

high pressure, hot refrigerant gas

low pressure, cool refrigerant gas

high pressure refrigerant liquid

low pressure refrigerant liquid

Air floW1. Air intake filter2. Air intake valve3. Compression element4. Non return valve5. Air/oil separator vessel6. Minimum pressure valve7. After-cooler8. Air-air heat exchanger9. Water separator with drain10. DD/PD filters (optional)

oil floW11. Oil12. Oil cooler13. Thermostatic bypass valve14. Oil filter15. Oil stop valve

refrigerAnt floW16. Refrigerant compressor17. Condenser18. Liquid refrigerant dryer/filter19. Thermostatic expansion valve20. Evaporator21. Hot gas bypass valve22. Accumulator

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Standard full feature version (ff)

gA 37-45-55 VSD gA 75-90 VSD

Technical specifications GA 37-45-55-75-90 VSDTechnical specifications GA 7-11-15-18-22-30 VSD

compressortype

operating pressure Workplace

capacity fAd* min-max installed motor powernoise level**

(50/60 hz)Weight (kg/lbs)

bar(e) psig l/s m3/min cfm kW hp db(A) WorkplaceWorkplace full feature

50/60 hz Version

GA 37 VSD 4 58 26-122 1.5-7.3 54-259 37 50 67/68 1000/2205 1120/24697 102 25-121 1.5-7.3 54-256 37 50 67/68 1000/2205 1120/2469 10 145 24-104 1.4-6.2 52-220 37 50 67/68 1000/2205 1120/246913 188 23-84 1.3-5.0 51-178 37 50 67/68 1000/2205 1120/2469

GA 45 VSD 4 58 26-144 1.5-8.7 54-307 45 60 69/72 1030/2447 1150/27127 102 25-143 1.5-8.7 54-303 45 60 69/72 1030/2447 1150/2712 10 145 24-125 1.4-7.5 52-265 45 60 69/72 1030/2447 1150/271213 188 23-99 1.3-5.9 51-210 45 60 69/72 1030/2447 1150/2712

GA 55 VSD 4 58 26-172 1.5-10.3 54 -365 55 75 69/72 1145/2524 1305/28777 102 25-172 1.5-10.3 54-363 55 75 69/72 1145/2524 1305/2877 10 145 24-152 1.4-9.1 52-322 55 75 69/72 1145/2524 1305/2877 13 188 44-128 2.6-7.7 93-271 55 75 69/72 1145/2524 1305/2877

GA 75 VSD 4 58 40-247 2.4-14.8 85-523 75 100 69/70 1680/3703 1830/40347 102 38-245 2.3-14.7 81-519 75 100 69/70 1680/3703 1830/403410 145 36-201 2.2-12.1 76-426 75 100 69/70 1680/3703 1830/4034 13 188 33-171 2.0-10.3 70-362 75 100 69/70 1680/3703 1830/4034

GA 90 VSD 4 58 41-286 2.5-17.2 87-606 90 125 73/74 1730/3813 1880/41457 102 38-285 2.3-17.1 81-604 90 125 73/74 1730/3813 1880/414510 145 36-241 2.2-14.5 76-511 90 125 73/74 1730/3813 1880/4145 13 188 32-200 1.9-12.0 68-424 90 125 73/74 1730/3813 1880/4145

compressortype

operating pressureWorkplace

capacity fAd* min-max installed motor powernoise level**

(50/60 hz)Weight (kg/lbs)

bar(e) psig l/s m3/min cfm kW hp db(A) WorkplaceWorkplace full feature

50/60 hz Version

GA 7 VSD 4 58 7-20 0.4-1.2 15-43 7.5 10 64/66 330/728 360/7947.5 109 7-20 0.4-1.2 15-43 7.5 10 64/66 330/728 360/79410 145 7-17 0.4-1.0 15-36 7.5 10 64/66 330/728 360/79413 188 6-14 0.4-0.8 13-29 7.5 10 64/66 330/728 360/794

GA 11 VSD 4 58 7-29 0.4-1.7 15-62 11 15 67/69 340/750 375/8277.5 109 7-28 0.4-1.7 15-60 11 15 67/69 340/750 375/82710 145 6-25 0.4-1.5 13-53 11 15 67/69 340/750 375/827 13 188 6-21 0.4-1.3 13-44 11 15 67/69 340/750 375/827

GA 15 VSD 4 58 19-46 1.2-2.8 42-97 15 20 67/67 509/1122 574/12657 102 19-45 1.1-2.7 40-95 15 20 67/67 509/1122 574/126510 145 18-38 1.1-2.3 38-80 15 20 67/67 509/1122 574/126513 188 16-30 1.0-1.8 34-64 15 20 67/67 509/1122 574/1265

GA 18 VSD 4 58 19-56 1.2-3.4 42-119 18 25 67/67 509/1122 574/12657 102 19-54 1.1-3.2 40-114 18 25 67/67 509/1122 574/1265 10 145 18-47 1.1-2.8 38-100 18 25 67/67 509/1122 574/126513 188 16-38 1.0-3.2 34-81 18 25 67/67 509/1122 574/1265

GA 22 VSD 4 58 19-65 1.2-3.9 42-138 22 30 68/68 519/1144 584/12877 102 19-64 1.1-3.8 40-135 22 30 68/68 519/1144 584/128710 145 18-55 1.1-3.3 38-117 22 30 68/68 519/1144 584/128713 188 19-47 1.0-2.8 34-100 22 30 68/68 519/1144 584/1287

GA 30 VSD 4 58 19-76 1.2-4.6 42-161 30 40 70/70 519/1144 584/12877 102 19-75 1.1-4.5 40-159 30 40 70/70 519/1144 584/128710 145 18-69 1.1-4.1 38-146 30 40 70/70 519/1144 584/128713 188 16-61 1.0-3.7 34-129 30 40 70/70 519/1144 584/1287

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gA 15 VSD - gA 18 VSD - gA 22 VSD - gA 30 VSD

* Unit performance measured according to ISO 1217, Ed.3, Annex C-1996.

** Mean noise level measured according to ISO 2151/Pneurop/Cagi PN8NTC2 test code; tolerance 3 dB(A).

reference conditions:• Absolute inlet pressure 1 bar (14.5 psi)• Intake air temperature 20ºC, 68ºF

Pressure dew point of integrated refrigerant dryer at reference conditions:2ºC to 3ºC, 36ºF to 37ºF.

Maximum working pressure for VSD machines: 13 bar(e) (188 psig)

1400 mm, 55"1680 mm, 66"650 mm, 26"

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1802 mm, 70.9"2040 mm, 80.3"970 mm, 38.2"

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1960 mm, 77"2290 mm, 90"1080 mm, 42.5"

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According to the chosen product type, slight differences in the flow chart may appear.

high ambient temperature versions (hAV 55°C, 131°f)* are available.

* HAV 50°C, 122°F for the Full Feature version (FF).

hgA 7 VSD - gA 11 VSD

1779 mm, 70”1158 mm, 46”638 mm, 25”

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In order to be First in Mind—First in Choice™ for all your

compressed air needs, Atlas Copco delivers the products

and services that help increase your business’ efficiency

and profitability.

Atlas Copco’s pursuit of innovation never ceases, driven by

your need for reliability and efficiency. Always working with

you, we are committed to providing you the customized

quality air solution that is the driving force behind

your business.

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www.atlascopco.com

never use compressed air as breathing air without prior purification in accordance with local legislation and standards.