GA55 - GA75 - GA55 W - GA75 W - GA90C - GA90C W With .
Instruction bookAtlas Copco Stationary Air CompressorsGA55 - GA75 - GA55 W - GA75 W - GA90C - GA90C WWith Elektronikon II RegulatorInstruction bookCopyright 2003, Atlas Copco Airpower n.v., Antwerp, Belgium.Any unauthorized use or copying of the contents or any part thereof is prohibited.particular to trademarks, model denominations, part numbers and drawings.This applies inThis instruction book meets the requirements for instructions specified by the machinery directive98/37/EC and is valid for CE as well as non-CE labelled machines.ImportantThis book applies exclusively to compressors from serial number AII-478 000 onwards.This book must be used together with the “User manual for Elektronikon I and II regulators”, Printed MatterNo. 2920 1461 0x.No. 2920 1464 03Replaces No. 2920 1464 02Registration code: APC G55-90C/2000 / 38 / 9872003-092920 1464 03-1-
Instruction bookThis instruction book describes how to handle the machines to ensure safe operation, optimum efficiencyand long service life.Read this book before putting the machine into operation to ensure correct handling, operation and propermaintenance from the beginning. The maintenance schedule comprises measures for keeping themachine in good condition.Keep the book available for the operator and make sure that the machine is operated and thatmaintenance is carried out according to the instructions. Record all operating data, maintenanceperformed, etc. in an operator's logbook available from Atlas Copco. Follow all relevant safetyprecautions, including those mentioned on the cover of this book.Repairs must be carried out by trained personnel from Atlas Copco who can be contacted for any furtherinformation.In all correspondence always mention the type and the serial number, shown on the data plate.For all data not mentioned in the text, see sections "Preventive maintenance schedule" and "Principaldata".The company reserves the right to make changes without prior notice.ContentsPage1 LEADING PARTICULARS. 41.1 General description. 41.1.1 Air flow (Figs. 1.6 and 1.7) . 51.1.2 Oil system (Figs. 1.6 and 1.7) . 51.1.3 Cooling and condensate drain systems (Figs. 1.6 and 1.7). 71.2 Unloading/loading system (Figs. 1.6 and 1.7) . 111.2.1 Unloading (Fig. 1.6). 111.2.2 Loading (Fig. 1.7) . 111.3 Elektronikon regulator . 111.3.1 Automatic control of the compressor. 111.3.2 Protecting the compressor . 121.3.3 Automatic restart after voltage failure . 121.3.4 Control panel (Fig. 1.8) . 131.4 Electric cabinet (Figs. 1.9 and 1.10) . 141.5 Menu-driven control programs. 181.5.1 Function of control programs . 211.5.2 Main screen. 211.5.3 Calling up other menus . 211.6 Air dryer . 221.6.1 GA Workplace FF with IFD (Fig. 1.6) . 221.6.2 GA Workplace FF with ICD (Fig. 1.7). 222 INSTALLATION . 242.1 Dimension drawings (Figs. 2.1 and 2.2) . 242.2 Installation proposals (Figs. 2.3 and 2.4). 272.3 Electric cable size 1) . 302.3.1 For GA55/GA55 W 2) 3). 302.3.2 For GA75/GA75 W 2) 3). 312.3.3 For GA90C/GA90C W 2) 3) . 322.4 Electrical connections (Figs. 1.9 and 1.10). 322.5 Pictographs . 332920 1464 03-2-
Instruction book2.6 Cooling water requirements. 343 OPERATING INSTRUCTIONS . 353.1 Initial start-up . 353.1.1 Safety . 353.1.2 Outdoor/altitude operation. 353.1.3 Moving/lifting . 353.1.4 External compressor status indication . 353.1.5 Compressor control modes . 353.2 Start-up . 363.3 Before starting. 393.4 Starting. 403.5 During operation . 423.5.1 Checking the display . 423.6 Manual control . 433.7 Stopping. 433.8 Taking out of operation at end of compressor service life . 454 MAINTENANCE . 464.1 Drive motor (10-Fig. 3.2). 464.2 Preventive maintenance schedule for the compressor 1) . 464.3 Oil specifications . 484.3.1 Atlas Copco Roto-injectfluid . 494.3.2 Mineral oil . 494.4 Oil and oil filter change . 494.5 Storage after installation . 494.6 Service kits. 505 ADJUSTMENTS AND SERVICING PROCEDURES . 515.1 Air filter (2-Fig. 3.3) . 515.2 Coolers. 515.3 Safety valve (2-Fig. 3.6). 516 PROBLEM SOLVING . 527 PRINCIPAL DATA . 557.1 Readings on display (3-Fig. 1.8) 1). 557.2 Settings of safety valve . 557.3 Maximum settings of overload relay, circuit breaker and fuses. 567.3.1 For GA55/GA55 W . 567.3.2 For GA75/GA75 W . 567.3.3 For GA90C/GA90C W . 577.3.4 Maximum fuse setting . 587.4 Settings of dryer switches (on GA Workplace Full-Feature with IFD) . 587.5 Compressor specifications. 587.5.1 Reference conditions . 587.5.2 Limitations . 587.5.3 GA55/GA55 W Workplace 4) . 597.5.4 GA55/GA55 W Workplace Full-Feature with IFD 4) . 597.5.5 GA75/GA75 W Workplace 4) . 597.5.6 GA75/GA75 W Workplace Full-Feature with IFD 4) . 607.5.7 GA90C/GA90C W Workplace 4) . 607.5.8 GA90C/GA90C W Workplace Full-Feature with IFD 4) . 617.6 Specifications of ICD dryer 4) . 617.6.1 Pressure dewpoint –40 C variant. 617.6.2 Pressure dewpoint –70 C variant. 627.7 Conversion list of SI units into US/British units. 628 INSTRUCTIONS FOR USE OF AIR RECEIVER. 642920 1464 03-3-
Instruction book1 LEADING PARTICULARS1.1 General descriptionGA are stationary, single-stage, oil-injected screw compressors driven by an electric motor. GA55, GA75and GA90C are air-cooled, whereas GA55 W, GA75 W and GA90C W are water-cooled.GA WorkplaceGA Workplace are enclosed in a sound-insulated bodywork. The compressors are controlled by the AtlasCopco Elektronikon II regulator. This electronic control module is fitted to the door of the front panel.The Elektronikon regulator reduces the power consumption and it allows the operator to easily programand monitor the compressor. The control panel includes the start, stop and emergency stop buttons. Anelectric cabinet comprising the motor starter is located behind this panel.The compressors are provided with an automatic condensate drain system.GA Workplace Full-FeatureGA Workplace Full-Feature are additionally provided with an ICD or IFD air dryer (1-Fig. 1.3 and 3-Fig.1.4). The condensate is automatically drained. See section 1.6.On GA Workplace FF with IFD, the dryer is integrated in the bodywork and removes condensate fromthe compressed air by cooling the air to near freezing point.On GA Workplace FF with ICD, the dryer is integrated in the sound-insulated bodywork. However, thedryer and compressor module are shipped separately and must be installed at the site. Condensate fromthe compressed air is removed by the adsorption process of the ICD.E11234Control moduleAir outlet valveElectric cable entryAutomatic condensatedrain outlet of optional oilseparator kit (OSD)Manual condensate drainvalveFig. 1.1 General view of GA75 Workplace Full-Feature with IFD2920 1464 03-4-
Instruction book1.1.1 Air flow (Figs. 1.6 and 1.7)Air drawn through filter (AF) and open inlet valve (IV) into compressor element (E) is compressed.Compressed air and oil flow into air receiver/oil separator (AR) via check valve (CV). The air isdischarged through the outlet valve via minimum pressure valve (Vp), air cooler (Ca) and condensate trap(4).Check valve (CV) prevents blow-back of compressed air when the compressor is stopped. Minimumpressure valve (Vp) prevents the receiver pressure from dropping below a minimum pressure. Theminimum pressure valve includes a check valve which prevents blow-back of compressed air from the airnet.1.1.2 Oil system (Figs. 1.6 and 1.7)In air receiver/oil separator (AR), most of the oil is removed from the air/oil mixture centrifugally. Thebalance is removed by oil separator element (OS). The oil collects in the lower part of air receiver/oilseparator (AR), which serves as oil tank.E1 Control moduleS3 Emergency stopbutton1 Fan2 Fan motor3 Electric cabinet4 Drive motor5 Oil separator kit(OSD), optional6 Air filter7 Oil filler plug8 Air receiver9 Oil level gauge10 Oil filters11 Air coolerFig. 1.2 Front view of GA75 Workplace Full-Feature with IFD2920 1464 03-5-
Instruction bookE1 Control moduleS3 Emergency stopbutton1 ICD dryer2 Dryer by-pass valve3 Air outlet valve4 Automaticcondensate drainoutlet5 Manual condensatedrain outlet6 Oil separator kit(OSD), optionalFig. 1.3 Front view of GA75 Workplace Full-Feature with ICD12345678910111213141516Air outlet valveDD or PD filter (optional)IFD dryerFan motorFanOil coolerOil filtersUnloaderCompressor elementCheck valveOil stop valveArrow, motor rotationdirection (depends oncompressor type)Drive motorAutomatic condensatedrain outlet of optionalOSDManual condensatedrain outletCondensate trapFig. 1.4 Rear view of GA75 Workplace Full-Feature with IFD2920 1464 03-6-
Instruction bookThe oil system is provided with a by-pass valve (BV). When the oil temperature is below 40 C 1), by-passvalve (BV) shuts off the oil supply from oil cooler (Co). Air pressure forces the oil from air receiver/oilseparator (AR) through oil filters (OF) and oil stop valve (Vs) to compressor element (E) and its lubricationpoints. Oil cooler (Co) is by-passed.By-pass valve (BV) starts opening the oil supply from cooler (Co) when the oil temperature has increasedto the 40 C. At approx. 55 C 1) all the oil flows through the oil cooler.Oil stop valve (Vs) prevents the compressor element from flooding with oil when the compressor isstopped. The valve is opened by element outlet pressure when the compressor is started.1.1.3 Cooling and condensate drain systems (Figs. 1.6 and 1.7)The cooling system comprises air cooler (Ca) and oil cooler (Co). On air-cooled compressors, the coolingair is generated by fan (FN). Water-cooled compressors have a cooling water system. The water flowsthrough the inlet pipe, the tubestacks of the air cooler and oil cooler, and the outlet pipe.A condensate trap (4) is provided in the air outlet system. The trap is equipped with a valve for automaticcondensate draining during operation (5) and a manually operated valve for draining after stopping thecompressor (6).1234Pictograph, manual condensate drain valvePictograph, automatic condensate drain outletAutomatic condensate drain outletManual condensate drain valveFig. 1.5 Condensate drains2920 1464 03-7-
Instruction book(1)(2)(3)(4)(5)Compressor unloadedCompressed air outAir inletCompressed airControl air(6) Oil(7) Refrigerant liquid(8) Refrigerant gas(9) Compressor loaded(10)Purge airFig. 1.6 Flow diagram (typical example of GA Workplace Full-Feature with IFD)2920 1464 03-8-
Instruction bookFig. 1.7 Flow diagram (typical example of GA Workplace Full-Feature with ICD)2920 1464 03-9-
Instruction bookAFAOARBVCaAir filterAir outletAir receiver/oil separatorOil cooler by-pass valveAir coolerM1M2OFOSPDT1CMCoCVControl moduleOil coolerCheck valvePT20SVTT11DP1DP2DP3EFCFNGlIVLPOil drain plug, air receiverOil drain plug, oil stop valveOil drain plug, check valveCompressor elementOil filler plugFanOil level gaugeInlet valveLoading plungerUAUVVIVpVsY112Drive motorFan motorOil filtersOil separator elementPressure sensor, oil separatorpressure differencePressure sensor, air outletSafety valveTemperature sensor, compressorelement outletUnloaderUnloading valveAir filter service indicatorMinimum pressure valveOil stop valveLoading solenoid valveFle
9 Compressor element 10 Check valve 11 Oil stop valve 12 Arrow, motor rotation direction (depends on compressor type) 13 Drive motor 14 Automatic condensate drain outlet of optional OSD 15 Manual condensate drain outlet 16 Condensate trap Fig. 1.4 Rear view of GA75 Workplace Full-Feature with IFD
Building 6000 Gulfstream Aerospace Corp. 100 Airways Avenue 05:00 AM to 06:00 PM (M-F) Savannah, Ga 31408 Building 6003Gulfstream Aerospace Corp. 07:00 AM to 04 :30 PM (M-F) 680 Preston A , Henne Road . 2 . These instructions apply to all Gulfstream locations, supersede all prior versions of this
9781860960147 Jazz Piano Grade 5: The CD 22.92 17.24 18.76 19.83 9781860960154 Jazz Piano from Scratch 55.00 41.36 45.02 47.58 9781860960161 Jazz Piano Aural Tests, Grades 1-3 18.15 13.65 14.86 15.70 9781860960505 Jazz Piano Aural Tests, Grades 4-5 15.29 11.50 12.52 13.23 Easier Piano Pieces (ABRSM)
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ASTM E 989-06 (2012), Classification for Determination of Impact Insulation Class (IIC) ASTM E 2235-04 (2012) Standard Test Method for Determination of Decay Rates for Use in Sound Insulation Test Methods. Test Procedure. All testing was conducted in the VT test chambers at Intertek-ATI located in York, Pennsylvania. The microphones were calibrated before conducting the tests. The airborne .
