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Table of contents
Figures .............................................................................................................................................................................
1 Preface ............................................................................................................................................................................
2 Safety ..............................................................................................................................................................................
2.1
Classification of important information .........................................................................................................
2.2
General .................................................................................................................................................................
3 Description .....................................................................................................................................................................
3.1
Technical data .....................................................................................................................................................
3.2
Function ...............................................................................................................................................................
3.2.1
Anti-surge control ...............................................................................................................................
4 Main components ..........................................................................................................................................................
4.1
Overview ..............................................................................................................................................................
4.2
Connections ........................................................................................................................................................
4.3
Start-up valve .....................................................................................................................................................
4.4
Flow restrictor FR 160 .......................................................................................................................................
4.5
Anti-surge control ..............................................................................................................................................
4.6
Bearing temperature switches ........................................................................................................................
4.7
Optional: Compressed air switch .....................................................................................................................
5 Before installation ........................................................................................................................................................
5.1
Delivery check .....................................................................................................................................................
5.2
Installation requirements .................................................................................................................................
5.2.1
Location .................................................................................................................................................
5.2.2
Foundation ...........................................................................................................................................
6 Installation ......................................................................................................................................................................
6.1
Installing VAC 20 ................................................................................................................................................
6.1.1
Indoor installation ...............................................................................................................................
6.1.2
Outdoor installation ............................................................................................................................
6.1.3
Electrical installation ..........................................................................................................................
6.1.4
Compressed air installation ...............................................................................................................
7 Using VAC 20 ..................................................................................................................................................................
7.1
Before start-up ...................................................................................................................................................
7.2
Initial start-up .....................................................................................................................................................
7.2.1
Checking the direction of rotation ....................................................................................................
7.2.2
Checking the Y/D time setting ..........................................................................................................
7.2.3
Initial start-up with pilot signal cable ..............................................................................................
7.2.4
Adjusting anti-surge control by PLC .................................................................................................
7.2.5
Adjusting anti-surge control by optional adaption kit ..................................................................
8 Maintenance ..................................................................................................................................................................
8.1
General inspection .............................................................................................................................................
8.2
Belt transmission ...............................................................................................................................................
8.3
Anti-surge control ..............................................................................................................................................
8.4
Start-up valve .....................................................................................................................................................
12
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VAC 20
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Instruction Manual
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