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Summary of Contents for Atlas Copco LFx 0.7
- Page 1 Atlas Copco Oil-free air piston compressors LFx 0.7, LFx 1.0, LFx 1.5, LFx 2.0 Instruction book...
- Page 3 Atlas Copco Oil-free air piston compressors LFx 0.7, LFx 1.0, LFx 1.5, LFx 2.0 Instruction book Original instructions Copyright notice Any unauthorized use or copying of the contents or any part thereof is prohibited. This applies in particular to trademarks, model denominations, part numbers and drawings.
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Page 4: Table Of Contents
Instruction book Table of contents Safety precautions......................4 ...........................4 AFETY ICONS ......................4 AFETY PRECAUTIONS GENERAL ...................4 AFETY PRECAUTIONS DURING INSTALLATION ....................6 AFETY PRECAUTIONS DURING OPERATION ................7 AFETY PRECAUTIONS DURING MAINTENANCE OR REPAIR General description......................9 ...........................9 NTRODUCTION ..........................13 LOW DIAGRAMS Installation........................15 ........................15 IMENSION DRAWINGS ........................19 NSTALLATION PROPOSAL... - Page 5 Instruction book Problem solving......................38 Technical data.......................39 ........................39 LECTRICAL CABLE SIZE ..................39 ETTINGS FOR OVERLOAD RELAY AND FUSES ....................40 EFERENCE CONDITIONS AND LIMITATIONS ..........................40 OMPRESSOR DATA Instructions for use......................42 Guidelines for inspection.....................43 Pressure equipment directives...................44 Declaration of conformity....................45 2920 7002 03...
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Page 6: Safety Precautions
Instruction book Safety precautions Safety icons Explanation Danger for life Warning Important note Safety precautions, general General precautions 1. The operator must employ safe working practices and observe all related work safety requirements and regulations. 2. If any of the following statements does not comply with the applicable legislation, the stricter of the two shall apply. - Page 7 Instruction book Precautions during installation 1. The machine must only be lifted using suitable equipment in accordance with the applicable safety regulations. Loose or pivoting parts must be securely fastened before lifting. It is strictly forbidden to dwell or stay in the risk zone under a lifted load. Lifting acceleration and deceleration must be kept within safe limits.
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Page 8: Safety Precautions During Operation
Instruction book Safety precautions during operation All responsibility for any damage or injury resulting from neglecting these precautions, or non-observance of the normal caution and care required for installation, operation, maintenance and repair, even if not expressly stated, will be disclaimed by the manufacturer. -
Page 9: Safety Precautions During Maintenance Or Repair
Instruction book Safety precautions during maintenance or repair All responsibility for any damage or injury resulting from neglecting these precautions, or non-observance of the normal caution and care required for installation, operation, maintenance and repair, even if not expressly stated, will be disclaimed by the manufacturer. - Page 10 Instruction book • Always wear special gloves. In case of refrigerant contact with the skin, rinse the skin with water. If liquid refrigerant contacts the skin through clothing, never tear off or remove the latter; flush abundantly with fresh water over the clothing until all refrigerant is flushed away; then seek medical first aid.
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Page 11: General Description
Instruction book General description Introduction Introduction LFx 0.7 up to LFx 2.0 are single-stage, oilless piston compressors driven by an electric motor. The compressors are air-cooled. Power block The Power block has two variants: • The Power block for open operation (PWBO) is provided with a fan protection and can be used for open operation. - Page 12 Instruction book LFx Power box Trolley units LFx Trolley units are Power box units installed on a 20 litre (5.25 US gal/4.40 Imp gal) air receiver provided with wheels. Trolley units come inclusive with safety valve, pressure regulator, pressure switch, outlet valve and pressure gauges.
- Page 13 Instruction book Reference Name Manual drain, air receiver Complete unit on air receiver The Complete unit on air receiver units are Power box units installed on a 50 litre (13.2 US gal/11 Imp gal/ 1.75 cu. ft) or 90 litre (23.7 US gal/19.8 Imp gal/3.15 cu. ft) air receiver. The complete units come inclusive with safety valve, pressure regulator, pressure switch, outlet valve and pressure gauges.
- Page 14 Instruction book Reference Name Pressure gauge, delivery pressure Pressure gauge, outlet pressure of pressure reducer Pressure reducer Options • Electronic timer drain An optional timer drain is available that drains the condensate from the air receiver at a programmed time interval.
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Page 15: Flow Diagrams
Instruction book An optional wheel set and handle set for the 50 litre (13 US gal/11 Imp gal/1.75 cu. ft) and 90 litre (23.7 US gal/19.8 Imp gal/3.15 cu. ft) air receivers. • Galvanized air receiver An optional air receiver for extra corrosion protection. Flow diagrams LFx Trolley and Complete unit on air receiver Flow diagram... - Page 16 Instruction book LFx with CDXF air dryer Flow diagram When the ON/OFF switch is put to position ON and the pressure in the air receiver is low enough, pressure switch (PR) starts the motor. On single-phase LFx 1.5 and LFx 2.0 units a vent valve (2) ensures smooth start-up. Air drawn through filter (AF) into compressor element (E) is compressed.
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Page 17: Installation
Instruction book Installation Dimension drawings Dimension drawings, LFx 0.7 up to LFx 2.0 Dimension drawing, LFx Power box 2920 7002 03... - Page 18 Instruction book Dimension drawing, LFx Complete unit on air receiver 2920 7002 03...
- Page 19 Instruction book Dimension drawing, LFx Complete unit on air receiver and CDXF air dryer 2920 7002 03...
- Page 20 Instruction book Dimension drawing, LFx Trolley Ref. Name Cooling air outlet Cooling air inlet Type Net mass Compressed air outlet Fixation holes Receiver Manual drain 2920 7002 03...
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Page 21: Installation Proposal
Instruction book Installation proposal General Install the oilless compressor in a cool, frost-free and well-ventilated place. The air should be clean and preferably at normal room temperature. Keep the inlet and outlet openings of the unit free. Compressor room example Description The unit should be installed on a level floor capable of taking the weight of the compressor. - Page 22 Instruction book The maximum total pipe length can be calculated as follows: 1.85 dp = (L x 450 x Qc ) / (d x p) d = Inner diameter of the outlet pipe in mm dp = Pressure drop (recommended maximum = 0.1 bar/1.5 psi) L = Length of outlet pipe in m p = Absolute pressure at the compressor outlet in bar(a) Qc = Free air delivery of the compressor in l/s...
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Page 23: Electrical Connections
Instruction book Electrical connections Electrical diagrams Single-phase 2920 7002 03... - Page 24 Instruction book 3-phase 230 V - 50 Hz and 230 V - 60 Hz 2920 7002 03...
- Page 25 Instruction book 3-phase 400 V - 50 Hz and 440-460 V - 60 Hz 2920 7002 03...
- Page 26 Instruction book Single-phase with CDXF air dryer 2920 7002 03...
- Page 27 Instruction book 3-phase 230 V - 50 Hz and 230 V - 60 Hz with CDXF air dryer 2920 7002 03...
- Page 28 Instruction book 3-phase 400 V - 50 Hz and 440-460 V - 60 Hz with CDXF air dryer 2920 7002 03...
- Page 29 Instruction book Single-phase with electronic drain or purge solenoid 2920 7002 03...
- Page 30 Instruction book 3-phase 230 V - 50 Hz and 230 V - 60 Hz with electronic drain or purge solenoid 2920 7002 03...
- Page 31 Instruction book 3-phase 400 V - 50 Hz and 440-460 V - 60 Hz with electronic drain or purge solenoid Reference Designation Customer’s installation Compressor Motor Pressure switch Green/yellow Brown 2920 7002 03...
- Page 32 Instruction book Reference Designation Blue Maximum fuse Setting (10) Motor dryer (11) Dryer (12) Black (13) Green (14) Electronic drain or purge solenoid Electrical installation The electrical installation must be carried out by an electrician and must correspond to the local codes. The indications on the motor data plate must correspond to the mains supply voltage and frequency.
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Page 33: Operating Instructions
Instruction book Operating instructions Operating precautions Precautions Never operate the unit without its ventilation hood. Place the compressor as level as possible; however, it can be operated with an angular deviation, consult your supplier. Only start and stop the compressor with its ON/OFF switch, this to avoid starting against back- pressure. - Page 34 Instruction book Stopping: Switch start/stop switch to position OFF Switch off the voltage. Close the air outlet valve Recommended load duty The values stated below under normal ambient are valid when running under reference conditions and remain applicable up to 30 ˚C (86 ˚F). When running constantly above 30 ˚C (86 ˚F) the values stated under higher ambient should be used.
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Page 35: Maintenance
When servicing, replace all removed gaskets, O-rings and washers. Intervals Carry out maintenance at the interval which comes first. The local Atlas Copco Customer Centre may overrule the maintenance schedule, especially the service intervals, depending on the environmental and working conditions of the compressor. -
Page 36: Service Kits
Instruction book Service kits Description Service kits are available offering the benefit of genuine Atlas Copco parts while keeping the maintenance budget low. The kits comprise all parts needed for servicing. Service kits Service kits Ordering number Air filter kit (inlet filter) -
Page 37: Adjustments And Servicing Procedures
Instruction book Adjustments and servicing procedures Pressure switch Pressure switch General The adjustment of the maximum or stopping pressure of the compressor is effected by means of the air pressure switch. The switch also controls the pressure difference between the maximum pressure (stopping pressure) and the pressure at which compression is resumed (starting pressure). -
Page 38: Vent Valve
Instruction book Adjustment Adjustment range Reference Designation Starting pressure bar(e) Stopping pressure bar(e) The maximum pressure is controled by means of screw (2). Turn the screw clockwise to raise the maximum or stopping pressure, anti-clockwise to lower it. The pressure difference is adjusted by means of screw (3). To reduce the difference between the stopping and starting pressure, increase the starting pressure by turning the screw anti-clockwise. - Page 39 Instruction book Possible problems It takes too much time before the vent valve closes (the vent valve closes after a few minutes or in extreme conditions the vent valve does not close at all). This can occur when the unit is connected to an empty vessel or whenever there is no backpressure.
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Page 40: Problem Solving
Instruction book Problem solving Attention Use only authorised parts. Any damage or malfunction caused by the use of unauthorised parts is not covered by Warranty or Product Liability. Apply all relevant Safety precautions. Before carrying out any maintenance or repair work on the compressor: move start/stop switch (1) to position 0FF. -
Page 41: Technical Data
Instruction book Technical data Electrical cable size Electrical cable size For single-phase units, see table below for the required sections of extension cables (not on cable reel). Length LFx 0.7 LFx 1.0 LFx 1.5 LFx 2.0 0-25 m 25-50 m... -
Page 42: Reference Conditions And Limitations
Instruction book Compressor type Voltage (V) Frequency (Hz) Overload relay (A) Main fuses, compressor supply (A) LFx 2.0 LFx 2.0 LFx 2.0 115 (single-phase) LFx 2.0 230 (single-phase) LFx 2.0 440-460 Reference conditions and limitations Reference conditions Air inlet pressure (absolute) Air inlet pressure (absolute) 14.5 Air inlet temperature... - Page 43 Instruction book Compressor data Units LFx 0.7 LFx 1.0 LFx 1.5 LFx 2.0 Maximum working pressure bar(e) Maximum working pressure psig Nominal working pressure bar(e) Nominal working pressure psig Motor shaft speed, 50 Hz units r/min 1500 1500 1500 1500...
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Page 44: Instructions For Use
Instruction book Instructions for use Instructions This vessel can contain pressurised air; this can be potentially dangerous if the equipment is misused. The vessel shall only be used to store compressed air and shall not be subject to rapid fluctuation of pressure. The vessel shall only be used within the pressure and temperature limits stated on the data plate and the testing report, which should be kept in a safe place. -
Page 45: Guidelines For Inspection
Instruction book Guidelines for inspection Guidelines On the Declaration of Conformity / Declaration by the Manufacturer, the harmonised and/or other standards that have been used for the design are shown and/or referred to. The Declaration of Conformity / Declaration by the Manufacturer is part of the documentation that is supplied with this compressor. -
Page 46: Pressure Equipment Directives
Components subject to 97/23/EC Pressure Equipment Directive greater than or equal to category II Compressor type Part number Description PED Class LFx 0.7 up to LFx 2.0 0830 1007 68 Safety valve 0830 1008 57 Safety valve 2235 3772 80... -
Page 47: Declaration Of Conformity
Instruction book Declaration of conformity Typical example of a Declaration of Conformity document (1): Contact address: Atlas Copco Airpower n.v. P.O. Box 100 B-2610 Wilrijk (Antwerp) Belgium 2920 7002 03... - Page 50 Atlas Copco's pursuit of innovation never ceases, driven by our need for reliability and efficiency. Always working with you, we are committed to providing you the customized quality air solution that is the driving force behind your business.
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