Table of Contents TABLE OF CONTENTS Commissioning and operation....34 Initial commissioning......34 Foreword..........4 Normal operation........ 36 About these operating instructions..4 Routine commissioning....... 37 Notes........... 4 Commissioning after extended Intended use........5 downtime..........37 Foreseeable misuse......6 Commissioning after a fault....37 Service..........
Foreword FOREWORD Performing regular visual inspections for damage Gardner Denver screw compressors are the Cleaning, maintenance, and repair of the product of years of research and development. compressor Together with high quality requirements, these conditions guarantee that the screw compressors...
Foreword Intended use Guarantee Gardner Denver is not liable for the functional The compressor uses the best available safety of the compressor if any actions are taken technology and meets applicable safety that are contrary to the intended use, or if used...
Operation without protective and safety devices. Email: Operation with defective, deactivated, or manipulated protective and safety devices, or Chart 1-1: Local Gardner Denver representative safety values, or operation with other safety- related defects. Use by private users or users without technical training.
Gardner Denver accepts no responsibility for conditions, such as with respect to work material damage or injuries that arise from non- organization, process flows, responsibilities, observation of safety conditions or the failure etc.
Safety requirements The sound pressure level with sound-dampening 3 Unlock <Emergency-Stop> button. enclosure is about: (See "Technical data".) Turn the pushbutton anticlockwise. During normal operation the compressor may only 4 Start up the compressor. be operated with a closed acoustic hood. See section "Commissioning after a fault"...
Safety requirements These special warning notices serve to protect Description of the hazard (hazard source ): The against hazards and are close to the potential hazard source indicates the cause of the hazard. hazard in space and time: Protective measure (protection against hazard): The protection against the hazard On the system, near the source of hazard describes the measures for preventing the hazard.
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Safety requirements Safety symbol Meaning Application / behavior Electrical voltage Warning against dangerous electrical voltage. Work on the electrical equipment of the compressor may be done only by an electrician in accordance with electri- cal rules. System continues to run The compressor continues to run for 30 second after the stop button <O>...
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Safety requirements Safety symbol Meaning Application / behavior Warning of automatic In normal operation the compressor can start automati- start cally at any time. Operational readiness of the compres- sor is indicated by the green LED on the control panel. Do not perform any work on the compressor when the green LED is lit.
Safety requirements Safety symbol Meaning Application / behavior Electrical voltage Warning against dangerous electrical voltage. Residual voltage on the Warning of stored energy in the form of capacitors. They capacitors carry deadly electrical voltage. Do not open the electrical switch cabinet (RS compres- sor or ARV ) for 10 minutes after disconnecting the com- pressor.
Safety requirements Operate the compressor only if all protective and Maintenance and repair work may be performed safety devices, sound dampeners, ventilation and only under supervision, or by a person qualified for exhaust devices, and cooling water supply (for this work. water-cooled compressors only) are present and Secure an ample working area, if needed.
Modifications and changes to the machine Do not make any modifications, additions, or reconfigurations of the compressor without prior consultation with Gardner Denver. Unauthorized changes to the machine are not allowed for safety reasons. Original parts are specially conceived for the machine.
Design and function DESIGN AND FUNCTION Principle of compression The compressor stages consist of a main rotor General description and a secondary rotor with spiral teeth that mesh with each other. Compression chambers bounded The compressor is an oil-lubricated, compressing, by the flanks of the teeth and by the compressor single-stage screw compressor with one sound- housing are formed.
Design and function Construction of the compressor Air-cooled Fig. 3-1: Overview Part 1 [20] Suction filter Base frame Intake regulator [21] Control system control panel Electric motor [22] EMERGENCY-Off button Screw compressor [23] Electrical enclosure [25] Fine precipitator Compression temperature sensor [10] Oil filter [27]...
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Design and function Fig. 3-2: Overview Part 2 (air-cooled) [14] Pressure vessel Air cooler Oil fill [17] Oil cooler cooling air fan Oil drain [18] Cooling air inlet filter pad Oil level indicator [19] Compressed air outlet [11] [24] Oil cooler Aftercooler cooling air fan [12] Safety valve...
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Design and function Fig. 3-3: Overview Part 2 (water-cooled) Pressure vessel [14] Air cooler Oil fill [17] Cooling air fan Oil drain [18] Cooling air inlet filter fleece [19] Oil level indicator Compressed air outlet [11] Oil cooler [26] Line pressure sensor [12] Safety valve [30]...
Design and function System schematic for air-cooled compressor 2.2 2.1 6 S12* E5 E4 Fig. 3-4: Functional schematic Compressed air Control air Cooling water Chart 3-1: Lines Components Designation Designation Designation Intake air filter Throttle; orifice diameter Dirt trap (only LxxxW) 1.2 mm / 0.047 "...
Design and function • When switching the drive motor to Δ-operation, the solenoid valve (-19-(Y1)) switches, as it is During screw compressor off-load operation, being supplied with current. a sufficiently large drop in pressure, and thus the required oil injection volume, is achieved so •...
Design and function • The cooling air fan (-25-) is speed-controlled based on the final compression temperature (only L xxx RS with fan speed control A – air- cooled units). • The cooling water solenoid valve (-xx-(Y6)) is opened and closed based on the final compression temperature (only L xxx W –...
Design and function Function display on lubricator (*) When the lubricator issues this signal, the following message is output on the compressor control: [Warning: Mot.lubr. sys] (also refer to the operating instructions for the compressor control GD Pilot TS). If the lubricant pipe is blocked, the drive unit increases the pressure to 6bar / 87psi.
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Design and function Heat recovery function schematic Switching heat recovery on and off Connection from oil cooler Heat recovery Connection to compressor Temperature regulator with switch-off Connection from heat exchanger (WRG) function Heat recovery switched on Heat exchanger Heat recovery switched off Cooling water connection Turning the hex screw clockwise to the stop External connections...
Fig. 4-1: Lifting points 2 Use the packing list to check the delivery for completeness. 3 Immediately inform the freight forwarder, insurance, and Gardner Denver of any missing parts or damage. Weight Dependent on type, the compressor weighs up to 4,700 kg / 10362 lbs (gross).
+2 ...+65 °C / +36 ... L250 4625 kg / 4625 kg / +149 °F could be exceed or underrun, 10196 lbs 10196 lbs contact Gardner Denver. L290 110 4500 kg / 4500 kg / Corrosion protection (direct drive) 9921 lbs...
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Transport and installation Ventilation and exhaust DANGER Danger of asphyxiation Danger from asphyxiation due to insufficient ventilation and exhaust. The operator must provide sufficient ventilation and exhaust of the compressor room. In order to be able to dissipate the heat produced during operation, the compressor room must have sufficient volume and good ventilation.
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Transport and installation Install compressor DANGER Risk of injury Danger from improper installation Consider the permissible load capacity of the foundation. Make sure the foundation is solid and flat. The compressor must be installed with full contact on a foundation with sufficient structural strength.
Preparing for commissioning PREPARING FOR WARNING COMMISSIONING Risk of injury Piping If incorrectly connected, the connection Remove all blank flanges, stoppers, caps, and can come loose and the open desiccant bags before installing the piping. connection can cause severe personal Distributor piping and pipe connections must be injury.
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EN60204-1/IEC60204-1. If the installation conditions deviate from the conditions as described in EN 60204, consult Gardner Denver. Provide the electrical connection and protective measures according to VDE, BS, or local requirements. As a rule, additional regulations from the corresponding power company must also be complied with.
Preparing for commissioning Cooling water connection Check the settings of the control transformer DANGER Electric shock Dangerous electrical voltage Work on the electrical equipment may be performed by specialized electrical technicians only. With the speed-controlled types (RS) there is a risk of electric shocks due to charged capacitors! Isolate the compressor and wait 10 minutes before touching any...
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The values are based on freshwater quality without additives (e.g., antifreeze). If the cooling water quality deviates from this, please consult Gardner Denver. Adjust the volume of cooling water according to the description "Cooling water adjustment for water-cooled compressor systems".
If the compressor has been stored for longer than 2 years, consult Gardner Denver. Perform initial commissioning as follows 1 Check the oil level. 2 Check the settings of the fan motor protection switch.
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Commissioning and operation Check the direction of rotation of the fan motors (for RS compressors ) CAUTION Falling hazard The direction of rotation of the fan motors can be checked only "from above." Provide a safe means of climbing Fig. 6-1: Check the direction of rotation of the drive motor Protective cover (removed) 1 Switch off the main disconnect switch.
Commissioning and operation 1 Place a suitable ladder next to the compressor Switching on and climb up. 1 Press start button < I > on the control panel. 2 Check the direction of rotation. – The compressor switches on. The rotational direction arrow is visible through –...
2 Then proceed as described in the "Initial commissioning" section. Commissioning after extended downtime For commissioning after an extended idle period, consult Gardner Denver. Commissioning after a fault NOTICE Property damage Avoid switching on the compressor multiple times without clearing the fault, as this can lead to significant machine damage.
The measures listed in these operating If the solutions listed here are not sufficient instructions for clearing faults may be performed to clear the fault. Contact Gardner Denver. only by specially trained personnel. Any other work beyond this must be performed by the...
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Clearing a fault Potential root cause Remedy Intake regulator does not close completely Make the intake regulator moveable, replace if needed. Check solenoid valves (Y1) and pressure reducing valve (14). Chart 7-2: Fault cleared by: Unit remains stopped during the run-up phase. Fault: Unit does not reach the set network pressure.
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Clearing a fault Fault: Idle pressure too high Potential root cause Remedy Compressor does not give relief Check suction regulator, blow-off solenoid valve (Y4) and pressure-retaining and non-return valve, and replace if necessary. Intake regulator does not close completely Make the intake regulator moveable, replace if needed.
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SET key. Lubricant cartridge empty, but no LC unit too small for the drive. Use the original LC unit MLS 120 “LC” message. of Gardner Denver. Chart 7-7: Troubleshooting and clearing faults on the lubricator January 2017 America 41 /72...
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Message “LC” even though lubri- LC unit too big for the drive. Use the original LC unit MLS 120 cant cartridge is not completely of Gardner Denver. emptied. Display not working despite volt- Internal drive fault. Replace entire lubrication system age being supplied.
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Clearing a fault NOTE Also note the fault messages on the display of the operator panel. The corresponding actions to clear the faults are described in the operating instructions for the electronic controls. January 2017 America 43 /72...
Maintenance and service MAINTENANCE AND SERVICE Maintenance and service are decisive factors for the compressor to be able to meet the challenges of trouble-free operation and service life that it faces. Compliance with the specified maintenance interval and the careful performance of maintenance and care tasks are therefore mandatory.
For any spare parts needed, the local Gardner ensured. Denver branch or representative retailer is available. Electrical components The local Gardner Denver subsidiary or the DANGER responsible dealer is available for any spare parts requirements. Electric shock It is important to provide the model name...
1 Lockout and Tagout. Service and maintenance work should be 2 Open the enclosure, create access. performed by the local Gardner Denver 3 Press start button < I > representative. to allow the compressor to run under load. Cleanliness...
The maintenance plan is suitable for most cases, but some detail changes may be needed under certain conditions. The maintenance plan should always be used as a guideline, but if a change is needed on the basis of experience, this should be discussed with Gardner Denver. Maintenance plan: Maintenance every 8 operating hours...
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Maintenance and service Maintenance plan: Maintenance every 4,000 hours, but at least once a year Components Measure Required qualification Completed Customer operating log Check and preserve operating User parameters. Electronic controls Check error statistics. User General Maintenance / cleaning Maintenance personnel Air filter Replace Maintenance personnel...
This will enable Gardner Denver to determine the specific service that your compressor needs. Maintenance work: The individual maintenance tasks that the service personnel can carry out, are detailed in the following chapter.
Maintenance and service 3 Insert new filter. 4 Close louvred grille. Replacement times for the inlet filter elements The operating modes and the quality of the suction air (e.g. dust content) have a significant impact on the service life of the filter elements. The filter elements should be inspected for dust accumulation at least weekly;...
Maintenance and service With these compressors, the time for changing oil 11 Shut oil filler neck. is heavily dependent on the degree of soiling of 12 Close the enclosure. the circulating oil. It is vital you ensure that no oil- 13 Switch on the main disconnect switch.
Maintenance and service 4 Release the filter elements (for direction of 1 Switch OFF the main disconnect switch and rotation see illustration). secure it against switching on again. 5 Insert new filter elements. 2 Open the enclosure, create access. 6 Close the enclosure. 3 Open valve (1) for pressure relief.
Maintenance and service The compressor is equipped with two air filters. DANGER The air filter serves to filter the intake air. The condition of the air filter must be checked through Electric shock regular visual inspections. Dangerous electrical voltage The air filter elements must be changed, if the Work on the electrical equipment message [Service due] or [Air filter] is displayed may be performed by specialized...
Maintenance and service Check the setting of the control transformer Replacing the grease cartridge as follows: • Switch on system as in chapter “Routine commissioning”. • In on-load operation check the control transformer’s output voltages. Several taps are provided for this purpose (see wiring diagram). If the output voltage is not correct, check the setting of the control transformer as follows: •...
[Emergency Stop Activated]. • AEON9000FG (optional) – The "Fault memory" register card blinks. • For further information, please contact your 2 Unlock the <E-stop> button. local CompAir Distributor or Gardner Denver- Turn the button counterclockwise. USA at 866-440-6241. January 2017 America...
The compressor is made unusable by removing materials, consult a physician and the electronic controller. Consult Gardner Denver. indicate the material involved. Keep the safety data sheet for the Consumables and auxiliary causative material available.
Appendix Remove the electrical connection Remove the drive motor lubricator grease cartridges DANGER 1 Open the enclosure, create access. Electric shock 2 Pull the plug from the lubrication system. Deadly electrical voltage 3 Unscrew the lubricator (grease cartridge with drive and cover) from the lubrication point. Work on the electrical equipment may be performed only by 4 Seal off the lubrication point.
Appendix L160-L200 L160 L200 60Hz, air-cooled "A" + water- cooled "W" Recommended cable cross section 2 x 3 x AWG4/0 / 2 x 3 x MCM350 (460V / 575V) 2 x 3 x AWG3/0 2 x 3 x MCM250 Recommended fuse size (time-delay) [A] 2 x 3 x 200 2 x 3 x 250 Cooling air volumetric flow rate...
Appendix L250-L290 L250 L290 60Hz, air-cooled "A" + water- cooled "W" Electric motor IP55 (IE3) - IEC 60034-2-1 ECA Qualifying Nominal speed of drive motor [rpm] 3600 Nominal power of fan motor "A" [hp / kW] Air cooler = 3.0 / Air cooler = 3.0 / 2.2 / oil cooler = 2.2 / oil cooler =...
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Appendix min. 29.5 min. 29.5 Fig. 9-2: L160 - L290 RS air-cooled Compressed air connection Motor cooling air inlet Compressor suction shaft Motor cooling air outlet Air and oil cooler cooling air inlet Frequency converter cooling air inlet (only speed-controlled system) [USA]Air and oil cooler cooling air outlet Switch cabinet cooling air inlet Cover for supply cable...
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Appendix Fig. 9-3: L160 - L290 RS water-cooled January 2017 America 67 /72...
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Appendix min. 29.5 min. 29.5 Fig. 9-4: L160 - L290 RS water-cooled Compressed air connection Motor cooling air inlet Compressor suction duct Motor cooling air outlet [C1] Cooling water inlet Switch cabinet cooling air inlet [C2] Cooling water outlet Switch cabinet cooling air outlet Cover for supply cable Condensate drain outlet 68 / 72...