2920 1190 05
2
Industrial Air Division
Instruction book
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
4.2.1 GA50 (W) VSD . . . . . . . . . . . . . . . . . . . . . 26
4.2.2 GA90 (W) VSD . . . . . . . . . . . . . . . . . . . . . 26
4.3 Oil and oil filter change interval . . . . . . . . . . . . . . 27
4.4 Oil specifications . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.4.1 Atlas Copco Roto-injectfluid . . . . . . . . . . 27
4.4.2 Mineral oil . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.5 Oil change . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27
4.6 Oil filter change . . . . . . . . . . . . . . . . . . . . . . . . . . 28
4.7 Oil separator change . . . . . . . . . . . . . . . . . . . . . . . 28
4.8 Storage after installation . . . . . . . . . . . . . . . . . . . . 29
4.9 Service kits . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5
Adjustments and servicing procedures. . . . . . . . . . . 29
5.1 Air filter . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.1.1 Recommendations . . . . . . . . . . . . . . . . . . . 29
5.1.2 Servicing . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.2 Coolers . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
5.3 Safety valve . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 29
6
Problem solving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30
7
Principal data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
7.1 Readings on display . . . . . . . . . . . . . . . . . . . . . . . 31
7.2 Settings of safety valve . . . . . . . . . . . . . . . . . . . . . 31
7.3 Settings of circuit breakers . . . . . . . . . . . . . . . . . . 31
7.3.1 GA50 (W) VSD . . . . . . . . . . . . . . . . . . . . . 31
7.3.2 GA90 (W) VSD . . . . . . . . . . . . . . . . . . . . . 31
7.4 Compressor specifications . . . . . . . . . . . . . . . . . . 31
7.4.1 Reference conditions . . . . . . . . . . . . . . . . . 31
7.4.2 Specific data of GA50 (W) VSD . . . . . . . 32
7.4.3 Specific data of GA90 (W) VSD . . . . . . . 32
7.5 Conversion list of SI units into British units . . . . 32
Contents
Page
1
Leading particulars . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1 General description . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1.1 Air flow . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1.1.2 Oil system . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.1.3 Cooling and condensate drain systems . . . . 5
1.2 Regulating system . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.3 Electrical system . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
1.4 Elektronikon control module . . . . . . . . . . . . . . . . . 5
1.4.1 Elektronikon regulator . . . . . . . . . . . . . . . . 10
1.4.2 Control panel . . . . . . . . . . . . . . . . . . . . . . . 10
1.5 Electric cabinet . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
2
Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.1 Dimension drawings . . . . . . . . . . . . . . . . . . . . . . . 14
2.2 Electric cable size . . . . . . . . . . . . . . . . . . . . . . . . . 18
2.3 Installation proposal . . . . . . . . . . . . . . . . . . . . . . . 19
2.4 Electrical connections . . . . . . . . . . . . . . . . . . . . . . 20
2.5 Cooling water requirements . . . . . . . . . . . . . . . . . 20
3
Operating instructions . . . . . . . . . . . . . . . . . . . . . . . . 21
3.1 Initial start-up . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21
3.2 Before starting . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
3.3 Starting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4 During operation . . . . . . . . . . . . . . . . . . . . . . . . . . 23
3.4.1 Checking the display . . . . . . . . . . . . . . . . . 23
3.5 Stopping . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.6 Taking out of operation . . . . . . . . . . . . . . . . . . . . . 24
4
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24
4.1 Preventive maintenance schedule for the
compressor . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25
4.2 Compressor motor . . . . . . . . . . . . . . . . . . . . . . . . 26
