Related Manuals for CompAir L37S-75
Summary of Contents for CompAir L37S-75
- Page 1 Umschlag ein Umschlag aus Operating instructions Operating instructions Screw compressor Screw compressor L37S - 75 L37S - 75 Issue December 2000 Ident. no.: 100 00 2288 / 00 Issue December 2000 Ident. no.: 100 00 2288 / 00...
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Page 3: Foreword
The compressor and its accessories as supplied by use. The manufacturer/supplier cannot be held respon- CompAir conform to the basic safety and health requi- sible for damage resulting from such use. The risk of rements included in the EC Machinery Directive 98/37/ such misuse lies solely with the user. - Page 4 Warranty claims will not be accepted in the case of • Operating errors • Incorrect maintenance • Wrong auxiliary materials • Use of spare parts other than CompAir original spare parts • Modifications and changes to the installation The warranty and liability conditions of the general terms and conditions of CompAir Drucklufttechnik will not be extended by the notes above.
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Page 5: Table Of Contents
2. Table of contents Foreword .................................. 3 Notes on the compressor ..........................3 Intended use ..............................3 Maintenance ..............................3 Notes ................................4 Table of contents ..............................5 Safety regulations ..............................6 Identification of safety guidelines ........................6 General safety instructions ..........................6 Changes and modifications to the machine .................... -
Page 6: Maintenance
Identification of safety guidelines General safety instructions Organizational measures CompAir is not liable for any damage or injury result- ing from the non-observance of these safety instruc- The operating instructions must always be at hand at tions or negligence of the usual care and attention... -
Page 7: Changes And Modifications To The Machine
3. Safety regulations Limit values (pressures, time settings, etc.) have to be chanism is to be used, which meets the local safety re- permanently identified ! gulations. All loose or slewable parts must be safely fi- xed before the machine can be lifted. It is strictly prohi- bited to stay in the danger zone of a lifted load. - Page 8 3. Safety regulations corresponding pressure safeguarding feature (safety • all wires are connected correctly and are in good valve or similar) must be provided taking into account condition, the weakest pressurized component. • all safety valves and other pressure relief mecha- The min.
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Page 9: Special Work/Maintenance
3. Safety regulations Maintenance/rectification of faults Special work/maintenance The employer has to inform the employee of the dan- Carefulness gers possibly arising during the repair and mainte- Observe the adjusting, maintenance and inspection nance of the machine/unit as well as on how to avoid activities and intervals set out in the operating instruc- them;... -
Page 10: Warning Of Special Dangers
3. Safety regulations ously touched by the personnel, must not be removed 3.6 Warning of special dangers before these parts have cooled down to room tempera- ture. Electric energy Check the accuracy of pressure and temperature indi- Use only original fuses with the specified current ra- cators at regular intervals. -
Page 11: Storage Of Compressors
3. Safety regulations for the assemblies concerned before carrying out any Rooms subject to explosion hazards repair work. Danger. Hydraulic and compressed-air lines must be laid and fitted properly. Ensure that no connections are ex- Compressor units must never be operated in areas changed. -
Page 12: Symbols And Explanations
3. Safety regulations Symbols and explanations Carefully read the operating manual before commissioning or servicing this compressor. Never operate the machine without protective equipment fitted. Never breath in compressed air from this system. - Page 13 3. Safety regulations Warning: Never operate the unit with open doors or loose access panels. Warning: Hot surface Warning: Pressurized part or system...
- Page 14 3. Safety regulations Warning: This system can start up by means of a remote control or automatically after a power failure. Warning: The system continues to run for 30 seconds after pressing the O-key. Warning: Danger of electric shock...
- Page 15 3. Safety regulations Lifting point Attention: Replace oil filter cartridge after approximately 100 operating hours. For further details, see the operating instructions. Attention: Check and, if required, re-tighten connection terminals. For further details, see the operating instructions.
- Page 16 3. Safety regulations Attention: Only lubricate the system while the motor is running. For further details, see the operating instructions...
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Page 17: Design And Functioning
4. Design and functioning Design of the air-cooled unit 11 1 Fig. 3 Pressure reservoir El. motor Oil filter Air filter Oil cooler Cooling air ventilator Pressure holding and check valve Support frame Operating panel control Panel Screw compressor Switch cabinet Air cooler... -
Page 18: Design Of The Water-Cooled Unit
4. Design and functioning Design of the water-cooled unit Fig. 4 Pressure reservoir 10 Pressure pipe to the mains Oil filter 11 Support frame Oil cooler 12 Cooling water outlet Pressure holding and check valve 13 Cooling water inlet Operating panel control 14 Electric motor Screw compressor 15 Air filter... -
Page 19: Schematic Diagram
4. Design and functioning Schematic diagram L37-75 Fig. 5 Intake filter Pressure holding + S3 Pressure monitor 27. Dirt trap (WS only) check valve Intake regulator S5 Differential pressure 28. Cooling water solenoid 16. Air cooler oil filter* 2.1 Actuating cylinder valve (WS only) S6 Differential pressure 2.2 Pressure control valve... -
Page 20: Oil Circuit
4. Design and functioning • The delivery of compressed air into the consumer Oil circuit network starts. The required oil is drawn from the pressure reservoir-6-, passes through the oil thermostat -21- (closes the by- Automatic operation pass line of the oil cooler -12- and opens the passage to (open/close operation) the oil cooler at an oil temperature >... - Page 21 4. Design and functioning Stopping of the system • After pressing the OFF-key on the operating panel, the solenoid valves -19 + 20- are de-energized. • The pressure control valve -2.2- in the intake regu- lator -2- closes and the system is relieved. •...
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Page 22: Transport And Installation
5. Transport and installation Weights (with electric motor IP 55) Transport The values listed below are approximate values, they refer to a screw compressor unit including oil fill : Version: CompAir L34S approx. 1165 approx. 1260 approx. 1370 approx. 1460 Installation Fig. - Page 23 Cooling air outlet SAE 2" se contact your technical adviser. CompAir screw compressors are rated for ambi- ent temperatures and cooling air temperatures of +1 °C to +40 °C. In the case of temperatures other than the above limiting values, please consult your technical adviser.
- Page 24 6. Preparations for commissioning Fig. 10a water-cooled unit Figure 10a : 1 Compressed air outlet DN 50, PN 16 DIN 2566 /SAE 16 bar porting pattern 3000 PSI The screw compressor is completely assembled in the factory. The compressed air mains is connected to the tap- ping flange of the screw compressor.
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Page 25: Water Connection For W-Version
6. Preparations for commissioning Water connection for W-version Fig. 12 Figure 12 : Fig. 11 1 bleed screw Figure 11 : The cooling water circuit is completely assembled and fitted in the screw compressor unit. 1 Cooling water intake 2 Cooling water outlet The water connections of L37S-L75 are as follows: Important L37S-L75W... -
Page 26: Electrical Connection
6. Preparations for commissioning Electrical connection Recommended supply line cross-sections and fuses Installed Nominal Fuse protection Wire 380 V/50 Hz nominal motor power (slow-blow cross-section motor power ventilator A (W) fuse) at 30 °C [kW] [kW] L37S 1,1 (0,37) 3 x 35 /PE 16 3 x 25 /PE 16 1,1 (0,37) 3 x 50 /PE 25... - Page 27 6. Preparations for commissioning Checking the setting of the control-power Start-up of the unit after connection to the transformer electric network/Checking the direction of rotation The control-power transformer is factory-preset to the rated voltage. However, practice has shown that the ac- After connection to the electric network the unit can be tual supply voltage often differs from this value.
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Page 28: Oil Level Check
6. Preparations for commissioning Oil level check Sound pressure level Sound pressure level measured to DIN 45 635 under Danger. full load at a distance of 1 m dB(A): Only check the oil level when the screw compres- air-cooled water-cooled sor unit is out of operation and depressurized ! The pressure reservoir can be under pressure and the oil hot. -
Page 29: Commissioning
(danger of burning and scalding). Routine commissioning Important Although every CompAir screw compressor has been subjected to a test run at the factory and has again been thoroughly inspected before shipment, damage during shipment cannot be excluded. For... -
Page 30: Commissioning After Malfunction
7. Commissioning • Actuate main switch. Setting of the operating pressure • Check the safety valve at operating pressure. Danger. • For testing purposes, all LEDs and all segments on the operating panel light up. The operating pressure must be set by a specialist •... -
Page 31: Servicing And Maintenance
• Press the OFF-key on the control panel and wait the screw compressor unit comprises the "Maintenance until the screw compressor unit has come to rest; and inspection manual for CompAir compressors, in • the screw compressor unit is depressurized, which you can list your performed maintenance work at •... - Page 32 Minimum oil change = 1 x year (visual inspection only) Oil change when the CompAir special oil "Blue Energy" (option) is used, W 7 Check / retighten connecting terminals in the 1st oil change after 5000 h, later in accordance...
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Page 33: Oil Change
8. Servicing and maintenance Oil change Fig. 21 Fig. 20 Note Danger. When changing the oil, the waste oil is to be drained The oil must only be changed, when the screw completely, if possible, since used oil reduces the ser- compressor is out of operation and depressurized ! vice life of the new oil fill considerably. -
Page 34: Change Of The Oil Filter Cartridge
8. Servicing and maintenance Change of the oil filter cartridge Change of the oil fine separator Fig. 22 Fig. 23 Danger. Danger. Only replace the oil filter cartridge, when the screw The pressure reservoir is under pressure ! Only compressor unit is out of operation and depressuri- work on the screw compressor unit, when it is out of zed ! Be careful with hot oil : Danger of scalding ! operation and depressurized ! -
Page 35: Air Filter Change/Check
8. Servicing and maintenance Changing intervals of oil fine separators Intermediate cleaning of the air filter The operating conditions (e.g. coolant temperatures), Note the operating modes and the quality of the intake air (e.g. content of dust, content of gaseous foreign matter Intermediate cleaning can be done no more than five such as SO , solvent vapours, etc.) have a strong influ-... -
Page 36: Safety Valve
8. Servicing and maintenance Intermediate cleaning of the air filter by Safety valve blowing through with compressed air Danger. When blowing through an air filter, observe the follo- wing : • Wear protective goggles and a breathing mask • The pressure of the compressed air must not ex- ceed 5 bar •... -
Page 37: Connecting Terminals In The Switch Cabinet
8. Servicing and maintenance Important The replacement of a single V-belt is not permit- ted, always replace a complete V-belt set. During the entire service life of the V-belt set, no readjustment of the automatic V-belt tensioning system will be necessary. operating position Fig. -
Page 38: Lubrication Of Electric Motors
8. Servicing and maintenance For lubrication, use lithium-saponified roller bearing Note grease that meets the following requirements: Before first commissioning or re-commissioning - after • Consistence class (NLGI): maintenance - of water-cooled units, bleed the air cool- • Worked penetration: 220 - 250 er through the bleed screw. -
Page 39: Maintenance Instructions And Lubricant Recommendations For Stationary Compressors
8.3 (maintenance schedule) shorten by 50 %. The oil change intervals should be determined ac- cording to actual operating conditions and with the help of oil analyses. You should use the following oil types: a) CompAir "4000“ b) CompAir "Blue Energy“ Bild 24 motor lubrication points... -
Page 40: Trouble-Shooting
9. Trouble-shooting Malfunction Possible cause Remedy Unit cannot be started 1. No operating or control voltage 1. Check fuses, main switch and supply line 2. Malfunction not acknowledged 2. Acknowledge fault message 3. Pressure reservoir not depressurized 3. Wait until depressurized, the reservoir pressure must be <0.8 bar for a start 4. - Page 41 9. Trouble-shooting Malfunction Possible cause Remedy Unit switches off 1. Ambient temperature too high 1. Ventilate compressor room 2. Ventilator defective 2. Check el. motor and protective motor switch 3. >>E<< appears on the pressure or 3. Check sensors, connections and lines temperature displays 4.
- Page 44 CompAir UK Ltd. High Wycombe CompAir UK Ltd. High Wycombe Hughenden Avenue Hughenden Avenue High Wycombe High Wycombe Buckinghamshire Buckinghamshire HP13 5SF HP13 5SF United Kingdom United Kingdom Tel. ++ 44 (01) 1494 605-0 Tel. ++ 44 (01) 1494 605-0...
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