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Fig. 1 Maximum relative humidity of intake air ..................................................................................... 6

Fig. 2 Three-phase star (wye system); 4 wire; center point solidly grounded ...................................... 10

Fig. 3 Three-phase star (wye system); 3 wire; grounded center point solidly grounded ...................... 10

Fig. 4 Location of safety signs .............................................................................................................. 19

Fig. 5 Enclosure overview .................................................................................................................... 23

Fig. 6 Machine layout ........................................................................................................................... 24

Fig. 7 Keys - overview .......................................................................................................................... 27

Fig. 8 Indicators – overview .................................................................................................................. 28

Fig. 9 RFID sensor field ........................................................................................................................ 29

Fig. 10 Machine mountings .................................................................................................................... 30

Fig. 11 Recommended machine placement and dimensions [in.] .......................................................... 33

Fig. 12 Compressed air pipework ........................................................................................................... 36

Fig. 13 Inlet valve filling port ................................................................................................................... 43

Fig. 14 MODULATING control: Setting the shut-off valve ...................................................................... 44

Fig. 15 Interlock switch position ............................................................................................................. 45

Fig. 16 Switching on and off ................................................................................................................... 47

Fig. 17 Switching off in an emergency ................................................................................................... 48

Fig. 18 Switching on and off from a remote control center ..................................................................... 49

Fig. 19 Using the timer for switching on and off ..................................................................................... 50

Fig. 20 Acknowledging messages .......................................................................................................... 51

Fig. 21 Filter mat for the air and oil cooler .............................................................................................. 58

Fig. 22 Switching cabinet ventilation ...................................................................................................... 59

Fig. 23 Filter mat for the air and oil cooler .............................................................................................. 60

Fig. 24 Air filter maintenance .................................................................................................................. 61

Fig. 25 Drive belt maintenance ............................................................................................................... 62

Fig. 26 Testing the EMERGENCY STOP push button ........................................................................... 64

Fig. 27 Checking the cooling oil level ..................................................................................................... 65

Fig. 28 Venting the machine ................................................................................................................... 66

Fig. 29 Replenishing the cooling oil ........................................................................................................ 67

Fig. 30 Changing the cooling oil, oil separator tank ............................................................................... 70

Fig. 31 Changing the cooling oil, heat recovery system ......................................................................... 71

Fig. 32 Changing the oil filter .................................................................................................................. 73

Fig. 33 Changing the oil separator cartridge .......................................................................................... 74

Fig. 34 Transport with a forklift truck ...................................................................................................... 83

Fig. 35 Transport with a crane ................................................................................................................ 84

Fig. 36 Battery disposal .......................................................................................................................... 85

List of Illustrations

9_5875 33 USE

Operator Manual Screw Compressor

SM Tri-Voltage, SIGMA CONTROL 2