data comp. imp

8

9

10

1617

18

19

20

21 22

12

1

2

3

4

5

6

7

11

13

14

15

Technical specifications - 60Hz CSA / UL

Max. working pressure Capacity Installed Noise WeightCompressor FAD(1) min-max Motor power level(2)

type

bar(e) psig bar(e) psig l/s m3/min cfm kW hp dB(A) lbs lbs

GA 18 VSD 4 58 3.75 54 20-56 1.2-3.4 42-11913/175 7.5 109 7.25 105 19-54 1.1-3.4 42-114 18 25 67-68 1122 1265

10 145 9.75 141 18-47 1.1-2.8 38-10013 188 12.75 185 16-38 1.0-2.3 34-81

GA 30 VSD 4 58 3.75 54 20-76 1.2-4.6 42-16113/175 7.5 109 7.25 105 19-75 1.1-4.5 40-159 30 40 70-71 1144 1288

10 145 9.75 141 18-69 1.1-4.1 38-14613 188 12.75 185 16-61 1.0-3.7 34-129

GA 37 VSD 4 58 3.75 54 26-115 1.6-6.9 55-24413/175 7.5 109 7.25 105 25-113 1.5-6.8 53-239 37 50 67-68 2491 2767

10 145 9.75 141 24-97 1.4-5.8 51-20513 188 12.75 185 23-80 1.3-4.8 44-169

GA 45 VSD 4 58 3.75 54 26-137 1.6-8.2 55-29013/175 7.5 109 7.25 105 25-135 1.5-8.1 53-286 45 60 67-68 2491 2767

10 145 9.75 141 24-117 1.4-7.0 51-24813 188 12.75 185 23-86 1.5-5.2 49-182

GA 55 VSD 4 58 3.75 54 26-164 1.6-9.8 55-34713/175 7.5 109 7.25 105 25-162 1.5-9.7 53-343 55 75 71-74 2491 2767

10 145 9.75 141 24-144 1.4-8.6 51-30513 188 12.75 185 23-122 1.3-7.3 49-259

GA 75 VSD 4 58 3.75 54 39-233 2.3-14.0 83-49413/175 7.5 109 7.25 105 37-230 2.2-13.8 78-487 75 100 70-71 3638 3969

10 145 9.75 141 35-192 2.1-11.5 74-40713 188 12.75 185 32-166 1.9-10.0 68-352

GA 90 VSD 4 58 3.75 54 41-271 2.5-16.3 87-57413/175 7.5 109 7.25 105 38-267 2.3-16.0 81-566 90 125 73-74 3969 4300

10 145 9.75 141 36-232 2.2-13.9 76-49213 188 12.75 185 32-200 1.9-12.0 68-424

(1) Unit performance measured according to ISO 1217, Ed. 3, Annex C-1996Reference conditions:

• absolute inlet pressure 1 bar (14.5 psi)• intake air temperature 20°C (68°F)

FAD is measured at the following working pressures:- 7 bar variants at 7.5 bar- 9.5 bar variants at 10 bar- 12.5 bar variants at 13 bar

(2) Noise level measured according to Pneurop/CagiPN8NTC2, tolerance: 2dB(A).

WorkPlace WorkPlaceFull

Feature

Dimensions (inches)

Length Width Height

GA 18-30 VSD 66 26 55

GA 37-55 VSD 83 36 66

GA 75-90 VSD 99 41 77

8

9

1010

16161717

1818

1919

2020

2121 2222

1212

1

2

3

4

5

6

7

1111

1313

1414

1515

Flow diagram

WorkPlace WorkPlaceFull Feature

Air flow

1. 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 filter (optional)

Oil flow

11. Oil sump12. Oil cooler13. Thermostatic bypass valve14. Oil filter15. Oil stop valve

Intake airAir/Oil mixtureWet airDry air

Quality dry airOilRefrigerant gas

Refrigerant liquidWaterInsulation

Refrigerant flow

16. Refrigerant compressor17. Condenser18. Liquid refrigerant dryer/filter19. Capillary tube20. Evaporator21. Hot gas bypass valve22. Accumulator

WL

H

1310

905

3 95

FA

B 8

/03

20M

Atlas Copco Stationary air compressorsGA VSD WorkPlace Air System series - 60 Hz CSA / UL18-90 kW / 25-125 hp oil injected rotary screw compressorswith integrated electronic frequency converter

ENERGY SAVING “WORKPLACE”COMPRESSED AIR SYSTEM

Th

e fa

ce o

f in

tera

ctio

n

What sets Atlas Copco apart? Our belief that, to excel,we must provide the best possible know-how and tech-nology in ways that our customers value. Whether we’refully supporting existing products or advancing technolo-gy through innovation, we constantly focus on customerneeds.

The Atlas Copco way of doing business grows fromongoing interaction, long-term relationships, and a com-mitment to understanding each customer’s process andobjectives. As a result, every compressed air solution wecreate helps a customer operate with greater efficiency,economy, and productivity.

Satisfying customer needs effectively has made AtlasCopco the number one compressor manufacturer in theworld. We will continue to attract new business throughour unwavering conviction to creating products and ideasthat help our customers succeed.

Danger: Compressed air should never be supplied as breathing air unless air is properly purified forbreathing. Atlas Copco assumes no responsibility or liability related to the purchaser’s/user’s breathingair system.

The information contained herein is general in nature and is not intended for specific construction,installation or application purposes

Atlas Copco Compressors Inc.161 Lower Westfield RoadHolyoke, MA 01040Tel. 413-536-0600 Fax. 413-536-0091www.atlascopco.com

© 2003 by Atlas Copco Compressors Inc.® Atlas Copco and Elektronikon are registered trademarks of Atlas Copco AB

A compressor that cuts the cost of compressed air energy by up to 35%. Automatically.

Innovation in compressor technology

Most production facilities show an airdemand profile with fluctuations depending on the hour of the day, the day of the week, or the period in an economic cycle. Traditionalcompressors cannot precisely follow the air demand.

Atlas Copco pioneered the GA Variable Speed Drivecompressors, offering the capability to perfectly matchcompressor capacity to air demand. A GA VSDcompressor can follow the fluctuating demand byvarying the speed of its drive motor. As air demanddecreases, the GA VSD lowers the delivered flow and,consequently, the power consumption. This is the keyfeature of the GA VSD compressors: They reduce theenergy consumption to a minimum by completelyeliminating unloaded power consumption, saving up to22% on the total life cycle cost.

Atlas Copco designed the GA VSD range accordingto the “Workplace” concept, so you can move thecompressor out of the conventional compressor room tothe point of use. This is possible thanks to extremelylow noise levels and the integration of optionalancillaries such as air and condensate treatment.

The GA 30-90 VSD units are delivered to the siteequipped with oil and ready to go. To start theoperation, just plug in the compressor to its powersource and connect it to the air net.

Maintaining a pipe network is cumbersome andcostly. Besides the pressure drop over the pipe network,experience shows that leakages of up to 10% of the totalcompressor capacity are not unusual. The “WorkPlace”concept offers the possibility to eliminate thisunnecessary power consumption and save money.

The GA 30-90 VSD series are available in:

• Air- or water-cooled versions• “WorkPlace” or “WorkPlace” Full Feature

(including dryer) versions• High ambient versions (up to 50°C, 122°F).

Life cycle cost comparison (LCC) over a period of 5 years

Standard VSD

Installation 2%

Maintenance 9%

Investment 12%

Energyconsumption 77%

Energyconsumption 50%

Installation 2%

Maintenance 9%

Investment 17%

Savings 22% (on LifeCycle Cost)

35% savings on energy consumption

8.0

7.0

6.0

5.0

4.0

3.0

2.0

1.0

0

1 2 3 4 5

Rel

ativ

e co

sts

& s

avin

gs

Years

Profile 1

Average savings

Profile 2

Profile 3

GA VSD, the energy saving genius.

VSD-Savings & Pay Back

The realized savings and resultant pay back are strongly dependent upon the fluctuations in the air demand.Surveys show three typical air demand profiles.

Typical 24 hrs/day operation withlow night shift and high day shiftconsumption. Steady weekendconsumption (leakages). (64% of installations)

5 days/week operation, erraticdemand fluctuations. (28% of installations)

5 days/week operation, constant air demand. (8% of installations)

On average the extra cost ofVSD compared to standardregulation will have a pay back of about 1 year thanks to realized energy savings. The complete cost of a VSDcompressor is payed back within 3 years.

Atlas Copco developed a measurement box which quantifies the air demand. Based on these recordings, theimplementation of a VSD compressor in an installation can

be simulated by software. Future energy savings can becalculated prior to any capital investment commitment.

Profile 3Profile 2Profile 1

Capa

city

in c

fm

Capa

city

in c

fm

Capa

city

in c

fm

Time of dayTime of dayTime of day

VSD total investment cost

VSD extra cost versus Standard regulation

Moisture, dirt particles, and aerosols in plant air can damage pneumaticequipment and contaminate products.Dry and clean compressed air keepsproduction operations runningsmoothly. The GA 30-90 VSD“WorkPlace” Full Feature unitsincorporate an integrated dryer usingan environmentally friendly refrigerant,R404a. When adding the optional filterkits (DD-PD) these units will deliverclean and dry compressed airaccording to ISO 8573-1 class 1.4.1 or 2.4.2.

Optional equipment: The best value proposal.

Condensate quality must meet legalrequirements. The optional OSD oil-water separator raises condensatequality to surpass legal requirements,so there is no need to worry aboutdischarging oil contaminatedcondensate.

Class 1 filter kit (only Full Feature version) •

Class 2 filter kit (only Full Feature version) • • •

Dryer bypass • • •

Oil/water separator (OSD) • • •

Electronic water drain • • •

Energy recovery • •

Synthetic PAO oil • • •

Food grade oil • • •

Rain protection • • •

Main motor

Anti-condensation heater •

PT 100 thermal protection •• •• ••

Main power isolator switch • • •

Special colors • • •

ModBUS interface • • •

ProfiBUS interface • • •

Standard options

GA

18-3

0V

SD

GA

37-5

5V

SD

GA

75-9

0V

SD

•• Standard

Moist Air Aftercooler Air systemDryer-FilterScrew element

74 gal.of

water/day

74 gal.of

water/day

425 cfmof air

50 gal.of

water/day

20-24 gal.of

water/day

24 gal.of

water/day

Driedair

❑ Absolute reliability

❑ Superior performance, cut energy

costs more than 35%

❑ Very precise pressure control

❑ Pressure flexibility thanks to

electronic gearing

❑ Low maintenance costs

❑ Outstanding electrical

characteristics

❑ Low noise level

❑ Elektronikon® control

❑ “WorkPlace” full feature,

all-in-one package

❑ Global sales and service

organization

✓

✓

✓

✓

✓

✓

✓

✓

✓

✓

Designed and manufactured in accordance with the ISO 9001/9002 and ISO14001 certification, the GA 30-90 VSD range meets the industry’sexpectations of the highest quality standards. The GA 30-90 VSD rangecomplies with the Electro-Magnetic Compatibility (EMC) standard. All unitsare in conformance with the ISO 1217, ed.3, Annex C - 1996 test code.

Thanks to the variable speed drive technology, air demand and compressorcapacity can be perfectly matched, eliminating unloaded power consumptioncompletely.

The GA VSD can keep the pressure within a +/- 1.5 psig band, resulting ineven more energy savings as every 7 psig reduction in delivery pressurereduces the power consumption by 3%.

The GA VSD allows the user to choose any delivery between 58 and 188 psigwithout changing any gears or belt.

The GA VSD performs a “soft” start avoiding current and torque peaks. As aresult, the unit can perform an unlimited number of motor starts andconsequently, there is less stress and wear on all mechanical components.

The GA VSD eliminates penalties from electricity companies by having ahigh power factor and no starting current peaks.

The use of a radial low speed fan and modern techniques of vibro-acousticoptimization have resulted in extremely low noise levels.

This advanced control, monitoring, and communication system maximizesoverall compressor efficiency and reliability and minimizes maintenancecosts. At the same time, all world-wide interfaces for remote control andcommunication are available.

All air and condensate treatment equipment can be integrated in thecompressor package, reducing the installation cost and floor-spacerequirement.

From concept to installation, from consultation to preventive maintenance andservice activities, Atlas Copco is your compressed air partner helping tomaintain your production process.

The benefits of advanced technology.

GA VSD “Workplace” compressed air system:

1. Fan

Low speed radial fan provides a highcooling air flow at extremely low noiselevels.

2. Elektronikon®

Automatic electronic control andmonitoring of the compressor optimizesthe operation for efficiency andreliability.

3. Air inlet filter

Heavy-duty, multi-stage inlet filter withparticle removal down to 1 micron.

Large element surface for long life andminimal pressure drop.

4. Oil separator

Multi-stage oil separator yields a 2 ppm oil carry over for minimumcontamination and maintenance.

5. Integrated frequency converter

High efficiency PWM (Pulse WidthModulated) state-of-the-art frequencyconverter uses high speed low lossIGBT, (Isolated Gate BipolarTransistor), built-in net filter, and EMCfilter for low harmonic distortion andminimal electrical losses.

Easy to access and to service.

1

2

3

4

6

7

10

8

9

5

reliability, efficiency and integration.

6. Integrated refrigerant dryer

The Full Feature version includes arefrigerant dryer for minimalinstallation cost and floor spacerequirement.

The refrigerant dryer can be upgradedwith optional filter kits for clean airaccording to ISO 8573-1 class 1 orclass 2 to prevent contaminants fromentering the system.

7. Coolers

Compact coolers are dimensioned to ensure ideal running temperaturesunder all conditions and are easy to clean.

8. Compressor element

Atlas Copco’s patented screw elementensures optimal energy efficiency andoutstanding reliability.

9. Drive arrangement

Direct drive provides optimal energyefficiency and minimal maintenance.

A flexible coupling isolates startingtorque loads from compressorcomponents.

10. Motor

High efficiency, totally enclosed fan-cooled (TEFC), IP55, class F electricalmotor offers continuous trouble-freeoperation. The motor is designed andoptimized for variable speed driveapplications, and permanently alignedwith the compressor element.

1

2

3

4

5

6

7

8

9

10

Elektronikon®: a superior electronic control, monitoring, and communication system.

Reliability

Energy efficiency

User friendliness

Service friendliness

Digital remote control and

monitoring

Communication

Compressor Room Control

• Pro-active protection of the compressor by means of service andwarning indications

• Safely shuts down the compressor in case vital errors occur

• Precise pressure control for optimal efficiency

• Can be programmed in 2 languages from a selection of 23 languages

• Setting of operating parameters (password protected)- Working pressure- Warning levels- Service levels- Week timer

• Historical and actual data read-out via the easy-to-read display- Working pressure, operating temperatures, number of motor starts,

operating hours, service information- Status data during the 5 last shutdowns

• Automatic indication when service is required, minimizing downtimeand simplifying maintenance planning

• Remote start/stop capabilities• Remote indication of automatic operation, general warning,

and shutdown

• CAN connection (standard)• ModBUS/ProfiBUS interface (optional)• AIR monitor to worldwide web (optional)

Multiple compressor installations can benefit from a centralizedcontrol system, which coordinates the operation of the individualcompressors and ancillaries. From simple sequencing to completecompressor room monitoring, Atlas Copco can offer it all using thelatest state-of-the-art communication technology.

Atlas Copco’s patented Elektronikon® is an advancedmicroprocessor based, real time operating system with anergonomic alphanumeric user interface.

A compressor that cuts the cost of compressed air energy by up to 35%. Automatically.

Innovation in compressor technology

Most production facilities show an airdemand profile with fluctuations depending on the hour of the day, the day of the week, or the period in an economic cycle. Traditionalcompressors cannot precisely follow the air demand.

Atlas Copco pioneered the GA Variable Speed Drivecompressors, offering the capability to perfectly matchcompressor capacity to air demand. A GA VSDcompressor can follow the fluctuating demand byvarying the speed of its drive motor. As air demanddecreases, the GA VSD lowers the delivered flow and,consequently, the power consumption. This is the keyfeature of the GA VSD compressors: They reduce theenergy consumption to a minimum by completelyeliminating unloaded power consumption, saving up to22% on the total life cycle cost.

Atlas Copco designed the GA VSD range accordingto the “Workplace” concept, so you can move thecompressor out of the conventional compressor room tothe point of use. This is possible thanks to extremelylow noise levels and the integration of optionalancillaries such as air and condensate treatment.

The GA 30-90 VSD units are delivered to the siteequipped with oil and ready to go. To start theoperation, just plug in the compressor to its powersource and connect it to the air net.

Maintaining a pipe network is cumbersome andcostly. Besides the pressure drop over the pipe network,experience shows that leakages of up to 10% of the totalcompressor capacity are not unusual. The “WorkPlace”concept offers the possibility to eliminate thisunnecessary power consumption and save money.

The GA 30-90 VSD series are available in:

• Air- or water-cooled versions• “WorkPlace” or “WorkPlace” Full Feature

(including dryer) versions• High ambient versions (up to 50°C, 122°F).

Life cycle cost comparison (LCC) over a period of 5 years

Standard VSD

Installation 2%

Maintenance 9%

Investment 12%

Energyconsumption 77%

Energyconsumption 50%

Installation 2%

Maintenance 9%

Investment 17%

Savings 22% (on LifeCycle Cost)

35% savings on energy consumption

8.0

7.0

6.0

5.0

4.0

3.0

2.0

1.0

0

1 2 3 4 5

Rel

ativ

e co

sts

& s

avin

gs

Years

Profile 1

Average savings

Profile 2

Profile 3

GA VSD, the energy saving genius.

VSD-Savings & Pay Back

The realized savings and resultant pay back are strongly dependent upon the fluctuations in the air demand.Surveys show three typical air demand profiles.

Typical 24 hrs/day operation withlow night shift and high day shiftconsumption. Steady weekendconsumption (leakages). (64% of installations)

5 days/week operation, erraticdemand fluctuations. (28% of installations)

5 days/week operation, constant air demand. (8% of installations)

On average the extra cost ofVSD compared to standardregulation will have a pay back of about 1 year thanks to realized energy savings. The complete cost of a VSDcompressor is payed back within 3 years.

Atlas Copco developed a measurement box which quantifies the air demand. Based on these recordings, theimplementation of a VSD compressor in an installation can

be simulated by software. Future energy savings can becalculated prior to any capital investment commitment.

Profile 3Profile 2Profile 1

Capa

city

in c

fm

Capa

city

in c

fm

Capa

city

in c

fm

Time of dayTime of dayTime of day

VSD total investment cost

VSD extra cost versus Standard regulation

Moisture, dirt particles, and aerosols in plant air can damage pneumaticequipment and contaminate products.Dry and clean compressed air keepsproduction operations runningsmoothly. The GA 30-90 VSD“WorkPlace” Full Feature unitsincorporate an integrated dryer usingan environmentally friendly refrigerant,R404a. When adding the optional filterkits (DD-PD) these units will deliverclean and dry compressed airaccording to ISO 8573-1 class 1.4.1 or 2.4.2.

Optional equipment: The best value proposal.

Condensate quality must meet legalrequirements. The optional OSD oil-water separator raises condensatequality to surpass legal requirements,so there is no need to worry aboutdischarging oil contaminatedcondensate.

Class 1 filter kit (only Full Feature version) •

Class 2 filter kit (only Full Feature version) • • •

Dryer bypass • • •

Oil/water separator (OSD) • • •

Electronic water drain • • •

Energy recovery • •

Synthetic PAO oil • • •

Food grade oil • • •

Rain protection • • •

Main motor

Anti-condensation heater •

PT 100 thermal protection •• •• ••

Main power isolator switch • • •

Special colors • • •

ModBUS interface • • •

ProfiBUS interface • • •

Standard options

GA

18-3

0V

SD

GA

37-5

5V

SD

GA

75-9

0V

SD

•• Standard

Moist Air Aftercooler Air systemDryer-FilterScrew element

74 gal.of

water/day

74 gal.of

water/day

425 cfmof air

50 gal.of

water/day

20-24 gal.of

water/day

24 gal.of

water/day

Driedair

A compressor that cuts the cost of compressed air energy by up to 35%. Automatically.

Innovation in compressor technology

Most production facilities show an airdemand profile with fluctuations depending on the hour of the day, the day of the week, or the period in an economic cycle. Traditionalcompressors cannot precisely follow the air demand.

Atlas Copco pioneered the GA Variable Speed Drivecompressors, offering the capability to perfectly matchcompressor capacity to air demand. A GA VSDcompressor can follow the fluctuating demand byvarying the speed of its drive motor. As air demanddecreases, the GA VSD lowers the delivered flow and,consequently, the power consumption. This is the keyfeature of the GA VSD compressors: They reduce theenergy consumption to a minimum by completelyeliminating unloaded power consumption, saving up to22% on the total life cycle cost.

Atlas Copco designed the GA VSD range accordingto the “Workplace” concept, so you can move thecompressor out of the conventional compressor room tothe point of use. This is possible thanks to extremelylow noise levels and the integration of optionalancillaries such as air and condensate treatment.

The GA 30-90 VSD units are delivered to the siteequipped with oil and ready to go. To start theoperation, just plug in the compressor to its powersource and connect it to the air net.

Maintaining a pipe network is cumbersome andcostly. Besides the pressure drop over the pipe network,experience shows that leakages of up to 10% of the totalcompressor capacity are not unusual. The “WorkPlace”concept offers the possibility to eliminate thisunnecessary power consumption and save money.

The GA 30-90 VSD series are available in:

• Air- or water-cooled versions• “WorkPlace” or “WorkPlace” Full Feature

(including dryer) versions• High ambient versions (up to 50°C, 122°F).

Life cycle cost comparison (LCC) over a period of 5 years

Standard VSD

Installation 2%

Maintenance 9%

Investment 12%

Energyconsumption 77%

Energyconsumption 50%

Installation 2%

Maintenance 9%

Investment 17%

Savings 22% (on LifeCycle Cost)

35% savings on energy consumption

8.0

7.0

6.0

5.0

4.0

3.0

2.0

1.0

0

1 2 3 4 5

Rel

ativ

e co

sts

& s

avin

gs

Years

Profile 1

Average savings

Profile 2

Profile 3

GA VSD, the energy saving genius.

VSD-Savings & Pay Back

The realized savings and resultant pay back are strongly dependent upon the fluctuations in the air demand.Surveys show three typical air demand profiles.

Typical 24 hrs/day operation withlow night shift and high day shiftconsumption. Steady weekendconsumption (leakages). (64% of installations)

5 days/week operation, erraticdemand fluctuations. (28% of installations)

5 days/week operation, constant air demand. (8% of installations)

On average the extra cost ofVSD compared to standardregulation will have a pay back of about 1 year thanks to realized energy savings. The complete cost of a VSDcompressor is payed back within 3 years.

Atlas Copco developed a measurement box which quantifies the air demand. Based on these recordings, theimplementation of a VSD compressor in an installation can

be simulated by software. Future energy savings can becalculated prior to any capital investment commitment.

Profile 3Profile 2Profile 1

Capa

city

in c

fm

Capa

city

in c

fm

Capa

city

in c

fm

Time of dayTime of dayTime of day

VSD total investment cost

VSD extra cost versus Standard regulation

Moisture, dirt particles, and aerosols in plant air can damage pneumaticequipment and contaminate products.Dry and clean compressed air keepsproduction operations runningsmoothly. The GA 30-90 VSD“WorkPlace” Full Feature unitsincorporate an integrated dryer usingan environmentally friendly refrigerant,R404a. When adding the optional filterkits (DD-PD) these units will deliverclean and dry compressed airaccording to ISO 8573-1 class 1.4.1 or 2.4.2.

Optional equipment: The best value proposal.

Condensate quality must meet legalrequirements. The optional OSD oil-water separator raises condensatequality to surpass legal requirements,so there is no need to worry aboutdischarging oil contaminatedcondensate.

Class 1 filter kit (only Full Feature version) •

Class 2 filter kit (only Full Feature version) • • •

Dryer bypass • • •

Oil/water separator (OSD) • • •

Electronic water drain • • •

Energy recovery • •

Synthetic PAO oil • • •

Food grade oil • • •

Rain protection • • •

Main motor

Anti-condensation heater •

PT 100 thermal protection •• •• ••

Main power isolator switch • • •

Special colors • • •

ModBUS interface • • •

ProfiBUS interface • • •

Standard options

GA

18-3

0V

SD

GA

37-5

5V

SD

GA

75-9

0V

SD

•• Standard

Moist Air Aftercooler Air systemDryer-FilterScrew element

74 gal.of

water/day

74 gal.of

water/day

425 cfmof air

50 gal.of

water/day

20-24 gal.of

water/day

24 gal.of

water/day

Driedair

8

9

10

1617

18

19

20

21 22

12

1

2

3

4

5

6

7

11

13

14

15

Technical specifications - 60Hz CSA / UL

Max. working pressure Capacity Installed Noise WeightCompressor FAD(1) min-max Motor power level(2)

type

bar(e) psig bar(e) psig l/s m3/min cfm kW hp dB(A) lbs lbs

GA 18 VSD 4 58 3.75 54 20-56 1.2-3.4 42-11913/175 7.5 109 7.25 105 19-54 1.1-3.4 42-114 18 25 67-68 1122 1265

10 145 9.75 141 18-47 1.1-2.8 38-10013 188 12.75 185 16-38 1.0-2.3 34-81

GA 30 VSD 4 58 3.75 54 20-76 1.2-4.6 42-16113/175 7.5 109 7.25 105 19-75 1.1-4.5 40-159 30 40 70-71 1144 1288

10 145 9.75 141 18-69 1.1-4.1 38-14613 188 12.75 185 16-61 1.0-3.7 34-129

GA 37 VSD 4 58 3.75 54 26-115 1.6-6.9 55-24413/175 7.5 109 7.25 105 25-113 1.5-6.8 53-239 37 50 67-68 2491 2767

10 145 9.75 141 24-97 1.4-5.8 51-20513 188 12.75 185 23-80 1.3-4.8 44-169

GA 45 VSD 4 58 3.75 54 26-137 1.6-8.2 55-29013/175 7.5 109 7.25 105 25-135 1.5-8.1 53-286 45 60 67-68 2491 2767

10 145 9.75 141 24-117 1.4-7.0 51-24813 188 12.75 185 23-86 1.5-5.2 49-182

GA 55 VSD 4 58 3.75 54 26-164 1.6-9.8 55-34713/175 7.5 109 7.25 105 25-162 1.5-9.7 53-343 55 75 71-74 2491 2767

10 145 9.75 141 24-144 1.4-8.6 51-30513 188 12.75 185 23-122 1.3-7.3 49-259

GA 75 VSD 4 58 3.75 54 39-233 2.3-14.0 83-49413/175 7.5 109 7.25 105 37-230 2.2-13.8 78-487 75 100 70-71 3638 3969

10 145 9.75 141 35-192 2.1-11.5 74-40713 188 12.75 185 32-166 1.9-10.0 68-352

GA 90 VSD 4 58 3.75 54 41-271 2.5-16.3 87-57413/175 7.5 109 7.25 105 38-267 2.3-16.0 81-566 90 125 73-74 3969 4300

10 145 9.75 141 36-232 2.2-13.9 76-49213 188 12.75 185 32-200 1.9-12.0 68-424

(1) Unit performance measured according to ISO 1217, Ed. 3, Annex C-1996Reference conditions:

• absolute inlet pressure 1 bar (14.5 psi)• intake air temperature 20°C (68°F)

FAD is measured at the following working pressures:- 7 bar variants at 7.5 bar- 9.5 bar variants at 10 bar- 12.5 bar variants at 13 bar

(2) Noise level measured according to Pneurop/CagiPN8NTC2, tolerance: 2dB(A).

WorkPlace WorkPlaceFull

Feature

Dimensions (inches)

Length Width Height

GA 18-30 VSD 66 26 55

GA 37-55 VSD 83 36 66

GA 75-90 VSD 99 41 77

8

9

1010

16161717

1818

1919

2020

2121 2222

1212

1

2

3

4

5

6

7

1111

1313

1414

1515

Flow diagram

WorkPlace WorkPlaceFull Feature

Air flow

1. 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 filter (optional)

Oil flow

11. Oil sump12. Oil cooler13. Thermostatic bypass valve14. Oil filter15. Oil stop valve

Intake airAir/Oil mixtureWet airDry air

Quality dry airOilRefrigerant gas

Refrigerant liquidWaterInsulation

Refrigerant flow

16. Refrigerant compressor17. Condenser18. Liquid refrigerant dryer/filter19. Capillary tube20. Evaporator21. Hot gas bypass valve22. Accumulator

WL

H

1310

905

3 95

FA

B 8

/03

20M

Atlas Copco Stationary air compressorsGA VSD WorkPlace Air System series - 60 Hz CSA / UL18-90 kW / 25-125 hp oil injected rotary screw compressorswith integrated electronic frequency converter

ENERGY SAVING “WORKPLACE”COMPRESSED AIR SYSTEM

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What sets Atlas Copco apart? Our belief that, to excel,we must provide the best possible know-how and tech-nology in ways that our customers value. Whether we’refully supporting existing products or advancing technolo-gy through innovation, we constantly focus on customerneeds.

The Atlas Copco way of doing business grows fromongoing interaction, long-term relationships, and a com-mitment to understanding each customer’s process andobjectives. As a result, every compressed air solution wecreate helps a customer operate with greater efficiency,economy, and productivity.

Satisfying customer needs effectively has made AtlasCopco the number one compressor manufacturer in theworld. We will continue to attract new business throughour unwavering conviction to creating products and ideasthat help our customers succeed.

Danger: Compressed air should never be supplied as breathing air unless air is properly purified forbreathing. Atlas Copco assumes no responsibility or liability related to the purchaser’s/user’s breathingair system.

The information contained herein is general in nature and is not intended for specific construction,installation or application purposes

Atlas Copco Compressors Inc.161 Lower Westfield RoadHolyoke, MA 01040Tel. 413-536-0600 Fax. 413-536-0091www.atlascopco.com

© 2003 by Atlas Copco Compressors Inc.® Atlas Copco and Elektronikon are registered trademarks of Atlas Copco AB

1310

905

3 95

FA

B 8

/03

20M

Th

e fa

ce o

f in

tera

ctio

n

What sets Atlas Copco apart? Our belief that, to excel,we must provide the best possible know-how and tech-nology in ways that our customers value. Whether we’refully supporting existing products or advancing technolo-gy through innovation, we constantly focus on customerneeds.

The Atlas Copco way of doing business grows fromongoing interaction, long-term relationships, and a com-mitment to understanding each customer’s process andobjectives. As a result, every compressed air solution wecreate helps a customer operate with greater efficiency,economy, and productivity.

Satisfying customer needs effectively has made AtlasCopco the number one compressor manufacturer in theworld. We will continue to attract new business throughour unwavering conviction to creating products and ideasthat help our customers succeed.

Danger: Compressed air should never be supplied as breathing air unless air is properly purified forbreathing. Atlas Copco assumes no responsibility or liability related to the purchaser’s/user’s breathingair system.

The information contained herein is general in nature and is not intended for specific construction,installation or application purposes

Atlas Copco Compressors Inc.161 Lower Westfield RoadHolyoke, MA 01040Tel. 413-536-0600 Fax. 413-536-0091www.atlascopco.com

© 2003 by Atlas Copco Compressors Inc.® Atlas Copco and Elektronikon are registered trademarks of Atlas Copco AB