Related Manuals for Gardner Denver L07
Summary of Contents for Gardner Denver L07
- Page 1 Original Operating and Service Manual Screw Air Compressor L07 - L11, L07RS - L11RS GB CDN USA Id. no. CC1140579 / 00 - March 2015...
- Page 3 Genuine Gardner Denver parts will be used. Warranty The conditions of the Gardner Denver Warranty are set out in the Company’s standard Conditions of Sale available from the Gardner Denver Company or Distributor supplying the machine.
- Page 4 Data sheet for users Fig. 1 *) The values on the type plate are maximum values. Your Gardner Denver distributor Name: Address: ______________________________________________________________________________________ ______________________________________________________________________________________ ______________________________________________________________________________________ Telephone: Fax: Contact: Spare Parts: Service:...
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Page 5: Foreword
Maintenance Notes on the compressor Carefully performed maintenance is imperative, this Gardner Denver screw compressors are the result of ensures that your screw compressor can meet all the many years of research and development. These requirements placed upon it. It is therefore imperative to... - Page 6 Operate this compressor only if you have an exact knowledge of the machine taking into respect these instructions. Gardner Denver cannot be held responsible for the safe operation of the machine/unit if it is used in a manner which does not correspond to the intended use, or for other applications which are not mentioned in these instructions.
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Page 7: Table Of Contents
Design and functioning ............................. 18 Design of the unit ..............................18 4.1.1 Design of the unit - L07-L11 (RS) ......................18 Schematic diagram ............................. 19 Oil circuit ................................20 ... - Page 8 Trouble-shooting ............................... 49 Annex ..................................51 11.1 Technical data USA/Canada version L07-L11 60 Hz ..................51 11.2 Technical data USA/Canada version L07RS ...................... 52 11.3 Technical data USA/Canada version L11RS ...................... 53 ...
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Page 9: Safety Regulations
General safety instructions Identification of safety guidelines Organizational measures Gardner Denver is not liable for any damage or injury resulting from the non-observance of these safety The operating instructions must always be at hand at instructions or negligence of the usual care and... -
Page 10: Changes And Modifications To The Machine
3. Safety regulations For the execution of maintenance work, tools and Installation and normal operation workshop equipment adapted to the task on hand are absolutely indispensable. Installation The personnel must be made familiar with the location In addition to the general technical operation in and operation instructions of fire extinguishers ! accordance with the stipulations of the local authorities, Observe all fire-warning and fire-fighting procedures! - Page 11 3. Safety regulations As an additional safety measure, persons, who start If it is possible that the intake temperature of the air will remotely controlled systems, have to take sufficient exceed, from time to time, the admissible maximum safety precautions in order to ensure that nobody is specified in the operating instructions, a precooler with checking the system or working on it.
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Page 12: Special Work/Maintenance
3. Safety regulations Refrain from any working method which is doubtful in Checks, maintenance and repair work may only be terms of safety. carried out with the screw compressor being at rest and depressurized. Protective equipment to be removed for Never play around with compressed air! this work, has to be refitted after completion of these activities. - Page 13 3. Safety regulations Use only original spare parts. Insulation or protective shielding, the temperature of which may exceed 70 °C/158 °F and which could be Only carry out maintenance and repair work when the erroneously touched by the personnel, must not be system is not in operation and the power supply removed before these parts have cooled down to room disconnected.
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Page 14: Warning Of Special Dangers
3. Safety regulations Ensure that consumables and replacement parts are Adhere to the regulations valid for the place of operation! disposed of in a safe and environmentally friendly Observe any existing national regulations if work is to manner. be carried out in small rooms. Hydraulics, pneumatics Warning of special dangers Work on hydraulic equipment may only be carried out... -
Page 15: Storage Of Compressors
3. Safety regulations Rooms subject to explosion hazards Danger Compressor units must never be operated in areas subject to explosion hazards! (Exception: Special units with the corresponding technical modifications) Storage of compressors All compressors are protected against corrosion at the factory for transport and for brief storage before commissioning. -
Page 16: Symbols And Explanations
3. Safety regulations 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 doors or loose access panels. - Page 17 3. Safety regulations 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.
- Page 18 3. Safety regulations Warning: The system continues to run for 30 seconds after pressing the O-key Warning: Danger of electric shock Attention: Lifting point...
- Page 19 3. Safety regulations 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).
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Page 20: Design And Functioning
4. Design and functioning Design and functioning Design of the unit 4.1.1 Design of the unit - L07-L11 (RS) a L07-L11 Fig. 2 1 Intake filter 12 Oil cooler 24 EMERGENCY OFF push-button 2 Intake regulator 13 Safety valve 25 Control cabinet... -
Page 21: Schematic Diagram
4. Design and functioning Schematic diagram Residual pressure: 1,5 - 2 bar Ventilation borehole D = 1mm Opening pressure: 0,14 bar Opening pressure: Opening pressure: 4,5 bar 1 bar Opening temperature 55 °C Fig. 3 1 Intake filter 11 Oil filter 21 Frequency converter 2 Intake regulator 12 Oil cooler... -
Page 22: Oil Circuit
(- 2 - Fig. 3) is closed, a vacuum pressure occurs in the intake 4.5.1 System control L07-L11 connection. Standstill of the system Excess pressure of approx. 1.5 - 2 bar/22 - 29 PSI ... -
Page 23: System Control L07Rs-L11Rs
4. Design and functioning 4.5.2 System control L07RS-L11RS Automatic operation (open-close operation) When the pressure reaches the upper switching (See also operating instructions for the compressor point set on the network pressure sensor (-7 - Fig. 4), control GD PILOT LRS) solenoid valve (Y1 Fig. -
Page 24: Hood (Opening/Closing)
4. Design and functioning Speed control operation Hood (opening/closing) Speed is controlled using a software-implemented PI The compressor is provided with a detachable plastic regulator that adapts the RPMs according to the need hood that allows easy access to all parts that are for compressed air. -
Page 25: Transport And Installation
5. Transport and installation Transport and installation Weights Transport The values listed below are approximate values, they refer to a screw compressor unit including oil fill: Compressor L07-L11: 205 kg 219 kg L07RS 222 kg L11RS 231 kg Fig. 6... -
Page 26: Installation
5. Transport and installation Installation A = 0.5m B = 0.8m Fig. 7 Danger The weight carrying capacity of the foundation has to be taken into account when installing the compressor. Provide for a solid and plane base. ... -
Page 27: Preparations For Commissioning
5 m/16.4 ft, more than one bend, filter cartridges, screens, etc.), please contact your technical adviser. Gardner Denver screw compressors are rated for ambient temperatures and cooling temperatures of +1°C/ 33.8°F to +45°C/113°F. In the case of temperatures other than the above limiting values,... -
Page 28: Compressed Air Connection
( - 1 - Fig. 9). For this you should use a flexible connection (e.g. compressed air hose, compensator). L07(RS)-L11(RS): sleeve G 3/4“ (3/4“ NPT) Danger When connecting the compressor on the mains side to the compressed air system available at the customer‘s end, check the operating temperatures... -
Page 29: Electrical Connection
(slow-blow fuse) class J 140°F 167°F 194°F [HP] 60-Hz-compressors 200V 230V L07, L07FS 460V 575V 200V 230V L11, L11FS 460V 575V 460V L07RS 460V L11RS An adequate electrical power supply of the correct Caution voltage must be provided. -
Page 30: Electric Motor Fasteners For Secure Transportation
6. Preparations for commissioning Only L07RS-L11RS : 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! Important A wrong setting of the control-power transformer jeopardizes the trouble-free operation of... -
Page 31: Oil Level Check
6. Preparations for commissioning Fig. 12 Fig. 14 1 Oil filler cap R1" 2 Oil-level indicator 3 Maximum oil level 4 Minimum oil level Important Do not mix oils of different specifications. Machines which are delivered without oil must first be filled to the max. -
Page 32: Sound Pressure Level
6. Preparations for commissioning Sound pressure 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) Speed-controlled compressors dB(A) 60 Hz L07RS L11RS Subject to technical revision. -
Page 33: Commissioning
The access panels may temporarily be opened for Important checking the direction of rotation (wear ear protectors). Although every Gardner Denver screw compressor has been subjected to a test run at the factory and Danger has again been thoroughly inspected before... -
Page 34: Routine Commissioning
7. Commissioning Temperature start-up protection Commissioning after malfunction The screw compressor unit will not start up if the Important ambient temperature is lower than + 1 °C/33.8 °F. Do not switch the screw compressor on repeatedly without having rectified the malfunction, since this may cause considerable damage to the machine. -
Page 35: Control System
8. Control system Control system Status indicator (display / light General signals) This chapter is used to quickly commission the unit. The control system is explained in detail in the separate The control system is fitted with a three-row display. GD PILOT operating instructions. -
Page 36: Displaying / Changing Values
8. Control system Displaying / changing values Default settings 8.4.1 Selecting values Danger You can display values, e.g. total hours, and set the When programming in standby, the machine may control system, e.g. cut-in and cut-out times, in the sub- start up at any time. -
Page 37: Setting Line Pressure (Only L07Rs-L11Rs)
8. Control system 8.5.3 Setting line pressure 8.5.4 Setting time/date (timer) (only L07RS-L11RS) The GD PILOT accumulator can bridge a loss of power Speed is controlled with the aid of a PI controller lasting between around two to three weeks. If power is implemented in the software and is matched to the lost for longer periods, the timer's time and date are lost demand for compressed air. -
Page 38: Acknowledging Warning / Fault Messages
8. Control system Acknowledging warning / fault messages Warning and fault messages are shown in the third row of the display. The red light signal flashes at the same time. You will find a table containing messages and suggested ways of remedying problems in the separate GD PILOT operating instructions. -
Page 39: Menu Structure (Apart From L07Rs-L11Rs) (Values Are Examples)
8. Control system 8.10 Menu structure (apart from L07RS-L11RS) (values are examples) + TOTAL RUNNING 12345h [MAINTENANCE SCHED.] LOADED HOURS 10987h + AIR FILTER IN 2000h OIL FILTER IN 2000h ... -
Page 40: Menu Structure (Only L07Rs-L11Rs) (Values Are Examples)
8. Control system 8.11 Menu structure (only L07RS-L11RS) (values are examples) + TOTAL RUNNING 12345h [MAINTENANCE SCHED.] LOADED HOURS 10987h + AIR FILTER IN 2000h OIL FILTER IN 2000h ... -
Page 41: Service And Maintenance
In order to facilitate this task, the scope of supply of the screw compressor unit comprises the “Maintenance Checks and maintenance work may only be carried and inspection manual for Gardner Denver out when the following points are observed: compressors”, in which you can list your performed ... - Page 42 9. Service and maintenance 9.3.1 Service Check List 3. Replace Air/Oil Separator, operating conditions determine the frequency of service. The air/oil separator will need to be changed as indicated by the GD Pilot, every 4000 hours or every year, whichever Every 8 hours operation occurs first.
- Page 43 9. Service and maintenance...
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Page 44: Oil Change
9. Service and maintenance transported through the air intake filter into the oil circuit Oil change of the compressor unit. Also a high content of humidity in the intake air and the formation of condensate within the machine affect the service life of the lubricant oil so that a reduction in the oil change intervals may become necessary. -
Page 45: Change Of Oil Filter Cartridge
9. Service and maintenance In this case the oil must be analyzed to check the Unscrew the oil filter cartridge ( - 1 - Fig. 18) using permissible length of time that the oil can be used (see an appropriate tool also chapter 9.15). -
Page 46: Change Of The Fine Separator Cartridge
9. Service and maintenance Check for leakage Change of the fine separator cartridge 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 operating modes and the quality of the intake air (e.g. -
Page 47: Safety Valve
9. Service and maintenance Safety valve Fig. 20 1 Air filter Fig. 21 2 Fixing clip 1 Safety valve Change the air filter as follows: Testing the safety valve Loosen screw at fixing clip ( - 2 - Fig. 20) The valve should be tested on a separate compressed ... -
Page 48: Changing V-Belts/Automatic Tensioning System
9. Service and maintenance Changing the V-belt is carried out as follows: Changing V-belts/automatic tensioning system Open front panel Lift the motor by turning the motion screw Danger (- 2 - Fig. 22) counterclockwise until the V-belts are Only perform checks and carry out work when the released screw compressor unit is out of operation and... -
Page 49: General Maintenance And Cleaning
9. Service and maintenance 1 Filter mat cooling air inlet 9.12 General maintenance and cleaning 2 Mounting bolt 3 Bottom access panel Important 4 Inlet filter (only L07RS-L11RS) Remove oil residues and other deposits from unit 5 Outlet filter (only L07RS-L11RS) parts and from the coolers of compressors, which Danger are exposed to hot compressed air, according to... -
Page 50: Inspection Intervals For Pressure Vessels And Electrical Installations
Use the following oil type: AEON Compressor Oils AEON 3000 - Mineral AEON 6000 - Food Grade (optional) AEON 9000 - Synthetic (optional) For further information, please contact your local Gardner Denver Distributor. -
Page 51: Trouble-Shooting
10. Trouble-shooting Trouble-shooting Malfunction Possible cause Remedy Unit cannot be started No operating or control voltage Check fuses, main switch and supply line Malfunction not acknowledged Acknowledge fault message Pressure reservoir not depressurized Wait until depressurized Electric motor defective Check connections, winding, etc. Compressor defective Turn the compressor manually;... - Page 52 10. Trouble-shooting Malfunction Possible cause Remedy Unit switches off Ambient temperature too high Ventilate compressor room Electric motor defective Check electric motor and thermistor Fan defective Check/replace fan Cross section of the electric supply Measure power requirement, lines too small if necessary, replace lines Power requirement too high Oil fine separator clogged,...
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Page 53: Annex
11. Annex Annex 11.1 Technical data USA/Canada version L07-L11 60 Hz Technical Data L07-L11 ; 60 Hz Maximum operating pressure psi g Minimum operating pressure psi g Ambient temperature °F + 34 / + 113 Flow 44.8 39.5 27.2 65.0 59.0... -
Page 54: Technical Data Usa/Canada Version L07Rs
11. Annex 11.2 Technical data USA/Canada version L07RS Technical data 50Hz / 60Hz L07RS Maximum operating pressure psi g Minimum operating pressure psi g Ambient temperature °F + 34 / + 113 Operating pressure psi g min. max. min. max. min. -
Page 55: Technical Data Usa/Canada Version L11Rs
11. Annex 11.3 Technical data USA/Canada version L11RS Technical data 50Hz / 60Hz L11RS Maximum operating pressure psi g Minimum operating pressure psi g Ambient temperature °F + 34 / + 113 Operating pressure psi g min. max. min. max. min. -
Page 56: Layout Plan L07-L11 And L07Rs-L11Rs
11. Annex 11.4 Layout plan L07-L11 and L07RS-L11RS (all dimensions in mm) Fig. 24 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) - Page 60 Gardner Denver Compressor 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 Fax ++49 (0)6761 832-409...