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3. Safety regulations

17

Attention:

Check and, if required, re-tighten

connection terminals. For further details,
see the operating instructions.

Attention:

Electric motor fasteners

Electric motor fasteners used for securing
the unit during transportation have to be
removed prior to commissioning (see also
chapter 6.4).

Attention:

Danger of electric shock from loaded
condensers! Please always first disconnect
the system from the power supply and wait
another 10 minutes before touching the
electrical components. The power
condensers require this time in order to
discharge!

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Содержание L07

Страница 1: ...Original Operating and Service Manual Screw Air Compressor L07 L11 L07RS L11RS V2 GB CDN USA Id no CC1140579 00 March 2015...

Страница 2: ......

Страница 3: ...contact the local Gardner Denver Company or Distributor who is supplied with revised and up dated information In any communication concerning the compressor it is essential to quote the MODEL SERIAL...

Страница 4: ...e Address ______________________________________________________________________________________ ______________________________________________________________________________________ ________________...

Страница 5: ...n the operating manual and complying with the inspection and maintenance directives 1 3 Maintenance Carefully performed maintenance is imperative this ensures that your screw compressor can meet all t...

Страница 6: ...ot be accepted in the case of Operating errors Incorrect maintenance Wrong auxiliary materials Use of spare parts other than Gardner Denver genuine spare parts Modifications and changes to the install...

Страница 7: ...rt 23 5 2 Installation 24 6 Preparations for commissioning 25 6 1 Cooling air volume minimum cross 25 6 2 Compressed air connection 26 6 3 Electrical connection 27 6 3 1 Electrical connection USA CANA...

Страница 8: ...lve 45 9 9 Changing V belts automatic tensioning system 46 9 10 Connecting terminals in the switch cabinet control transformer setting 46 9 11 Fittings 46 9 12 General maintenance and cleaning 47 9 13...

Страница 9: ...sponsibility and duty of notification for taking into account in plant factors for example regarding work organization sequences of operations personnel assigned to certain tasks are to be added to th...

Страница 10: ...well as to welding on structural or pressurized parts 3 4 Installation and normal operation Installation In addition to the general technical operation in accordance with the stipulations of the local...

Страница 11: ...leaner cooler or warmer area via an intake channel depending on the size of the machine an additional fan could turn out to be necessary If the room temperature can fall below zero the condensation dr...

Страница 12: ...out with the screw compressor being at rest and depressurized Protective equipment to be removed for this work has to be refitted after completion of these activities Operation of the machine without...

Страница 13: ...be removed before these parts have cooled down to room temperature Check the accuracy of pressure and temperature indicators at regular intervals If the admissible tolerance limits have been exceeded...

Страница 14: ...f this has been expressly authorized as there may be a risk of explosion and fire Before carrying out welding flame cutting and grinding operations clean the machine unit and its surroundings from dus...

Страница 15: ...on Since corrosion occurs more quickly in damp atmospheres than in dry conditions it is not possible to specify a maximum permissible standstill time which will apply in all cases Note The following a...

Страница 16: ...8 Symbols and explanations Carefully read the operating manual before commissioning or servicing this compressor Never breathe in compressed air from this system Never operate the unit with open door...

Страница 17: ...3 Safety regulations 15 Warning Hot surface Warning Pressurized part or system Warning This system can start up by means of a remote control or automatically after a power failure...

Страница 18: ...3 Safety regulations 16 Warning The system continues to run for 30 seconds after pressing the O key Warning Danger of electric shock Attention Lifting point...

Страница 19: ...motor fasteners used for securing the unit during transportation have to be removed prior to commissioning see also chapter 6 4 Attention Danger of electric shock from loaded condensers Please always...

Страница 20: ...l level indicator 11 Oil filter 12 Oil cooler 13 Safety valve 14 Pressure holding and check valve 15 Air cooler 16 Oil fine separator extractor 17 Oil temperature regulator 18 Cooling air ventilator 1...

Страница 21: ...separator 8 Oil filler cap 9 Oil drain 10 Oil level indicator 11 Oil filter 12 Oil cooler 13 Safety valve 14 Pressure holding and check valve opening pressure 4 5 bar 15 Air cooler 16 Oil fine separa...

Страница 22: ...he pressure reservoir at the same time 4 4 Air circuit The intake air passes through the intake filter 1 Fig 3 and the intake regulator 2 Fig 3 into the screw compressor 4 Fig 3 During the compression...

Страница 23: ...e motor 3 Fig 4 starts up The compressor extracts a certain volume of air via a start valve 2 1 Fig 4 Pressure builds up in the reservoir and closes the regulator This way constant pressure of approx...

Страница 24: ...lve Y1 Fig 4 is deenergized closed Reservoir pressure is reduced to approx 4 to 4 5 bar and the pressure maintenance valve 8 Fig 4 closes This way no more compressed air will be supplied to the mains...

Страница 25: ...ifted load The proper lifting of the load according to the operating instructions of the load suspension device has to be ensured Important Never lift or lash the compressor and its hood via the enclo...

Страница 26: ...have to be suitably identified and secured against touching See also the safety regulations in chapter 3 of the operating instructions Important The operator has to provide adequate ventilation for th...

Страница 27: ...section of approx 0 2 m2 for L07 L11 Important The stated minimum cross section refers to a maximum duct length of 5 m 16 4 ft and a maximum of one bend In the event of differing values over 5 m 16 4...

Страница 28: ...ecting hoses take appropriate measures to prevent whipping of the loose end in the event that the hose connection tears off Note After coolers separators collecting reservoirs and the compressed air l...

Страница 29: ...a guide it is suggested that the ground wire be equal in size to one of the con ductors which feeds the compressor motor circuit Make certain the ground wire connections are clean and tight The wire u...

Страница 30: ...efore touching the electrical components The power condensers require this time in order to discharge Important A wrong setting of the control power transformer jeopardizes the trouble free operation...

Страница 31: ...portant Do not mix oils of different specifications Machines which are delivered without oil must first be filled to the max mark in the pressure reservoir sight glass see also chapters 9 4 and 9 15 C...

Страница 32: ...ure level Sound pressure level measured in dB A according to PN8NTC 2 2 under full load at a distance of 1 m tolerance 3 dB A 60 Hz compressors dB A L07 71 L11 71 Speed controlled compressors 60 Hz dB...

Страница 33: ...been switched on the POWER LOSS fault appears This fault must be acknowledged using the key Fig 16 You will find more information about the control in chapter 8 The factory setting of the setpoint val...

Страница 34: ...be acknowledged using the key Fig 16 Press START button I Fig 16 To switch off the compressor in the usual way use the STOP button Fig 16 and not the emergency STOP button After shutdown the compress...

Страница 35: ...ystem is fitted with a three row display 1st row The final compression temperature final compression pressure and network pressure are permanently displayed here Final compression temperature is the t...

Страница 36: ...these keys at the same time until the right language appears 8 5 2 Setting network pressure apart from L07RS L11RS Max network pressure The network pressure is set in the CONTROL MENU sub menu The ke...

Страница 37: ...the TARGET PRESSURE menu item Pressing the key causes the value to flash You can now correct increase or decrease this value using or Then confirm the value set by pressing the key 8 5 4 Setting time...

Страница 38: ...ating instructions 8 9 1 Warning messages When there are warnings the red light signal flashes slowly The unit does not automatically shut down when there are warnings However ignored warnings may cau...

Страница 39: ..._ 00 00 00 00 p27 ___________ 00 00 00 00 02 EM STOP 12345h 01 EM STOP 12300h CUT OUT POINT 13 0bar CUT IN POINT 12 5bar p2 CUT OUT POINT 10 5bar p2 CUT IN POINT 10 0bar AUTOMATIC OPERATION ENABLE REM...

Страница 40: ...02 EM STOP 12345h 01 EM STOP 12300h CUT OUT POINT 13 0bar TARGET PRESSURE 12 5bar p2 CUT OUT POINT 10 5bar p2 TARGET PRESSURE 10 0bar AUTOMATIC OPERATION DISPLAY UNITS m3 min ENABLE REMOTE START OFF...

Страница 41: ...he following points are observed Press the STOP button on the control panel and wait until the screw compressor unit has come to rest and the screw compressor unit is depressurized The pressure displa...

Страница 42: ...or the kit part number and for the tool kit part number The tool kit is required to change the oil seal If the oil seal is a lip seal the wear sleeve must always be replaced 2 Replace lubricant every...

Страница 43: ...9 Service and maintenance 41...

Страница 44: ...ases When changing the oil the waste oil is to be drained completely since used oil reduces the service life of the new oil fill considerably Do not mix lubricating oils of different makes When changi...

Страница 45: ...depressurized electrically isolate and locked off Wait at least 5 minutes for the oil to settle and for the air to disperse Unscrew the oil filter cartridge 1 Fig 18 using an appropriate tool Dispose...

Страница 46: ...parator cartridge Check for leakage Check oil level see chapter 6 5 If required top up oil Changing intervals for oil fine separator cartridge The operating conditions e g coolant temperatures the ope...

Страница 47: ...as SO2 solvent vapours etc have a strong influence on the service life of the filters air filters oil filters fine separators Where such conditions exist the filter element may require changing more f...

Страница 48: ...out as follows Open front panel Lift the motor by turning the motion screw 2 Fig 22 counterclockwise until the V belts are released Clean degrease the V belt pulleys Replace the V belt set 5 Fig 22 Sc...

Страница 49: ...essor system has been shut down and depressurized a Perform filter mat change as follows Remove mounting bolt 2 Fig 23 Remove filter mat 1 Fig 23 and clean exchange if damaged Re insert filter mat in...

Страница 50: ...stationary compressors Lubricant recommendations Please note that proper lubrication will considerably increase the service life of your compressor unit According to regulations relating to the preve...

Страница 51: ...reservoir 1 Fix intake regulator or if required replace check solenoid valves 2 Short circuit in the unit 2 Determine and eliminate cause replace defective fuses 3 Connecting terminals in the switch...

Страница 52: ...n the compressed air 1 Oil fine separator defective 1 Replace oil fine separator cartridge 2 Oil foams 2 Change oil 3 Oil level too high 3 Drain off oil 4 Minimum pressure valve defective 4 Check mini...

Страница 53: ...47 42 Full load current max 460V 575 V Amps 15 12 21 17 Motor protection type IP55 EPAct Nominal speed rpm 3600 Nominal fan motor power no separate fan motor Recommended cable size 200V 230V 460V 575...

Страница 54: ...69 Nominal motor rating hp kW 10 7 5 Voltage frequency V 460V 10 60 Hz Full load current max at 460V Amps 18 Motor protection type TEFC IP55 EPAct Nominal speed rpm 1256 2950 Nominal fan motor power n...

Страница 55: ...70 Nominal motor rating hp kW 15 11 Voltage frequency V 460V 10 60 Hz Full load current max at 460V Amps 24 Motor protection type TEFC IP55 EPAct Nominal speed rpm 1096 2950 Nominal fan motor power no...

Страница 56: ...S Fig 24 all dimensions in mm A Compressed air connection G 3 4 B Cooling air inlet C Cooling air outlet D Cable entry E Cooling air outlet of control cabinet L07RS L11RS only F Cooling air inlet of c...

Страница 57: ...55...

Страница 58: ......

Страница 59: ......

Страница 60: ...essor Division 1800 Gardner Expressway Quincy Illinois 62305 Telephone 800 682 9868 Fax 217 224 7814 Gardner Denver Deutschland GmbH Argenthaler Str 11 55469 Simmern Deutschland Tel 49 0 6761 832 0 Fa...

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