User manual

Industrial Air Division
2920 1163 04
2
This instruction book describes how to handle the machines to ensure safe operation, optimum efficiency and long service life.
Read this book before putting the machine into operation to ensure correct handling, operation and proper maintenance from the
beginning. The maintenance schedule comprises measures for keeping the machine in good condition.
Keep the book available for the operator and make sure that the machine is operated and that maintenance is carried out according to the
instructions. Record all operating data, maintenance performed, etc. in an operator's logbook available from Atlas Copco. Follow all
relevant safety precautions, 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 further information.
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 "Principal data".
The company reserves the right to make changes without prior notice.
Page
3.3 Oil and oil filter change interval..................................... 19
3.4 Oil specifications ........................................................... 19
3.4.1 Atlas Copco Roto-injectfluid.............................. 19
3.4.2 Mineral oil for hydraulics ................................... 19
3.4.3 Synthetic hydrocarbon lubricant ....................... 19
3.5 Oil change ..................................................................... 21
3.6 Oil filter change ............................................................. 22
3.7 Storage after installation ............................................... 22
3.8 Service kits.................................................................... 22
4 Adjustments and servicing procedures ............................ 22
4.1 Air filter .......................................................................... 22
4.1.1 Recommendations............................................ 22
4.1.2 Servicing ........................................................... 22
4.2 Coolers.......................................................................... 22
4.3 Safety valve ................................................................... 23
4.4 Fan control switch on GA Full-feature ........................... 24
4.5 High pressure shut-down switch on GA Full-feature..... 24
4.6 Expansion valve on GA Full-feature .............................. 24
5 Problem solving................................................................... 24
6 Principal data ....................................................................... 26
6.1 Readings on display ...................................................... 26
6.2 Settings of switches and safety valve............................ 26
6.3 Settings of motor overload relay and fuses................... 27
6.4 Settings of fan motor circuit breaker ............................. 27
6.5 Compressor specifications............................................ 27
6.5.1 Reference conditions ........................................ 27
6.5.2 Specific data of GA30 / GA30 W....................... 28
6.5.3 Specific data of GA37 / GA37 W....................... 28
6.5.4 Specific data of GA45 / GA45 W....................... 29
6.6 Conversion list of SI units into British units ................... 29
7 Installation .......................................................................... 30
7.1 Dimension drawings...................................................... 30
7.2 Electric cable section .................................................... 32
7.3 Installation proposal ...................................................... 32
7.4 Electrical connections ................................................... 35
7.5 Pictographs ................................................................... 36
Page
1 Leading particulars................................................................ 3
1.1 General description ......................................................... 3
1.1.1 Air flow ................................................................ 3
1.1.2 Oil system ........................................................... 3
1.1.3 Cooling and condensate drain systems.............. 5
1.2 Unloading/loading system ............................................... 5
1.2.1 Unloading............................................................ 5
1.2.2 Loading ............................................................... 5
1.3 Electrical system ............................................................. 8
1.4 Electronic control module................................................ 8
1.4.1 Electronic regulator........................................... 11
1.4.2 Control panel..................................................... 12
1.5 Electric cabinet.............................................................. 13
1.6 Air dryer on GA Full-feature .......................................... 13
1.6.1 Compressed air circuit ...................................... 13
1.6.2 Refrigerant circuit.............................................. 14
1.6.3 Automatic regulation system............................. 14
1.6.4 Dryer control and safety devices....................... 14
2 Operating instructions ........................................................ 15
2.1 Initial start-up ................................................................ 15
2.1.1 Remarks............................................................ 15
2.1.2 Outdoor/altitude operation ................................ 15
2.1.3 Moving/lifting..................................................... 15
2.1.4 Cooling water requirements.............................. 15
2.1.5 Initial start-up .................................................... 15
2.2 Before starting............................................................... 16
2.3 Starting.......................................................................... 16
2.4 During operation............................................................ 17
2.4.1 Checking the display......................................... 17
2.5 Manual control............................................................... 18
2.6 Stopping ........................................................................ 18
2.7 Taking out of operation at end of compressor life cycle 18
3 Maintenance ......................................................................... 19
3.1 Compressor motor ........................................................ 19
3.2 Preventive maintenance schedule for the compressor.. 19
Contents