Table Of Contents - Gardner Denver L55 User And Service Manual

Screw air compressor

Table of Contents

1 Warning -Prohibition - Mandatory Label Information ..................................................................................... 2

2 Preface ............................................................................................................................................................ 5

2.1

Compressor Information ......................................................................................................................... 6

2.2

Intended Use .......................................................................................................................................... 6

2.3

Maintenance and Care............................................................................................................................ 6

2.4

Notes ..................................................................................................................................................... 6

3 Table of contents............................................................................................................................................. 8

4 Safety regulations ......................................................................................................................................... 10

4.1

General safety regulations .................................................................................................................... 10

4.2

Particular dangers associated with compressed air ................................................................................ 11

4.3

Particular dangers associated with machines......................................................................................... 13

4.4

Particular dangers associated with water-cooled units ........................................................................... 13

4.5

Dangers present when loading/moving machines .................................................................................. 14

4.6

General workplace dangers .................................................................................................................. 14

4.7

Dangers resulting from neglecting to perform maintenance .................................................................... 15

4.8

Dangers during maintenance and repairs .............................................................................................. 16

4.9

Dangers resulting from conversion work/modifications on the machine ................................................... 17

5 Design and functioning ................................................................................................................................. 18

5.1

Design of the unit ................................................................................................................................. 18

5.1.1 Design of air-cooled units ............................................................................................................. 18

5.1.2 Design of water-cooled units ......................................................................................................... 20

5.2

System Schematic ................................................................................................................................ 21

5.3

Oil circuit .............................................................................................................................................. 22

5.4

Air circuit .............................................................................................................................................. 22

5.5

System control ..................................................................................................................................... 22

5.5.1 System control L55-80 .................................................................................................................. 22

5.5.2 System control L55RS-L75RS ...................................................................................................... 23

6 Transport and installation ............................................................................................................................. 26

6.1

Transport ............................................................................................................................................. 26

6.2

Installation ............................................................................................................................................ 27

7 Preparations for commissioning .................................................................................................................. 28

7.1

Cooling air volume/minimum cross ........................................................................................................ 28

7.2

Compressed-air connection .................................................................................................................. 29

7.3

Water connection for water-cooled units ................................................................................................ 30

7.3.1 Limit values of the constituent elements in water ........................................................................... 31

7.4

Electrical connection (USA/CANADA Version only) ................................................................................ 31

7.4.1 Check setting of the fan protection switch (only for L55RS-L75RS) ................................................ 33

7.4.2 Checking the setting of the control-power transformer.................................................................... 33

7.5

Checking the Oil Level .......................................................................................................................... 33

7.6

Sound pressure level ............................................................................................................................ 34

8 Commissioning ............................................................................................................................................. 35

8.1

First commissioning .............................................................................................................................. 35

8.2

Putting a decommissioned compressor back into operation.................................................................... 37

8.3

Display of the compressor control GD Pilot TS ...................................................................................... 37

8.4

Routine commissioning ......................................................................................................................... 37

8.5

Commissioning after malfunction........................................................................................................... 38

8.6

Shutoff ................................................................................................................................................. 38

8.7

Emergency stop ................................................................................................................................... 38

9 Storage of compressors................................................................................................................................ 39

9.1

Decommissioning ................................................................................................................................. 39

August 20, 2018