L&W Compressors LW 720 E Operating Instructions Manual Download Page 78

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ECC - Electronic compressor control

Page B - 2

T A B L E O F C O N T E N T S

General Information

General Information ......................................................................................................................... 3

Description of Warning Symbols ....................................................................................................... 3

Description

Specifications / Options .................................................................................................................... 4

Switchboard ..................................................................................................................................... 5

Operation and Function

Main Menu ........................................................................................................................................ 6

Selection Menu (M100) ..................................................................................................................... 7

Display Menu (M200) ....................................................................................................................... 8

Inter-Stage Pressure Display ............................................................................................................... 8

Display II (M270) .............................................................................................................................. 9

Settings Menu (M300) ..................................................................................................................... 10

Set Stop Pressure - automatic mode (M320) .................................................................................... 11

Set Restart Pressure - automatic mode (M330) ................................................................................ 11

Set Stop Pressure - semi-automatic mode (M340) ........................................................................... 11

Test Menu (M400) .......................................................................................................................... 12

Test Solenoids (M420) ..................................................................................................................... 12

Test safety valve (M430) .................................................................................................................. 13

Test stop without venting (M440) ................................................................................................... 13

Statistics Menu (M500) .................................................................................................................... 14

Maintenance Menu (M600) ............................................................................................................. 15

Confirm Maintenance (M680) .......................................................................................................... 16

Operation Mode (M700) .................................................................................................................. 17

Language Menu (M750) .................................................................................................................. 17

Adjusting Display Backlight.............................................................................................................. 18

Software Update ............................................................................................................................ 18

Spare part lists ................................................................................................................................. 19

Manufacturer in terms of 97/23/EC .................................................................................................. 20

Version: 301012-001 E

Summary of Contents for LW 720 E

Page 1: ...sts Options if equipped Attachment A B C D E Manufacturer in terms of 97 23 EC The full name and address of the manufacturer is Lenhardt Wagner GmbH An der Tuchbleiche 39 68623 Hüttenfeld Germany Phone 49 0 62 56 85 88 0 0 Fax 49 0 62 56 85 88 0 14 E Mail service lw compressors com Internet www lw compressors com ...

Page 2: ... original invoice Should verifiably defective parts have been delivered we will decide to either replace the parts or repair them The resulting transport and assembly costs will be invoiced No reduction of the purchase price or changes to the contract can be made The parts for which a claim is being made should be kept safe by the purchaser and when requested sent to us at their cost Replaced part...

Page 3: ...A Operating Instructions Breathing Air Compressor LW 720 E Version 04 20 ...

Page 4: ...ety Precautions 13 Unit customised safety notices 14 Maintenance instructions 15 Transportation instructions Safety regulations 16 Installation Installation in closed rooms 18 Dimensions 19 Minimum distances 20 Ventilation 21 Electrical Installation 22 23 Operation Important operation instructions 25 First commissioning 26 28 Daily commissioning 29 Filling procedure 30 Switch off the compressor 31...

Page 5: ... water separator final stage maintenance 53 Filter element change 0 8ltr filter housing 54 Pneumatic condensate valve maintenance 55 Filter housing Filter cartridge 56 Filter cartridge change 57 Filter housing Maintenance 58 Inlet filters Inlet filter cartridge change 59 Cylinder heads and valves Important torque rates for bolts 60 Safety valves 61 Pressure maintaining non return valve 62 Safety v...

Page 6: ...ese instructions is excluded from warranty and liability for this product Carry out other commissioning steps only if you have fully understood the following contents Before commissioning and using the unit carry out all the essential preliminary work and measures concerning legal regulations and safety These are described on the following pages of this operati on manual G E N E R A L I N F O R M ...

Page 7: ...shut down also available ECC control in remote control box Power cable and plug Block heating device 420 bar Version Special voltages frequencies on request Electro motor Standard 400V 3 phase 50Hz Painted steel frame RAL 6026 Painted steel fan guard RAL 7001 Inclusive a remote control box for wall mount ing Main Start Stop and condensate test but tons as well as emergency stop switch Hour counter...

Page 8: ...inder Bore 3rd Stage mm Ø 25 Cylinder Bore 4th Stage mm Ø 14 Stroke 98 Medium Air Lubrication Type Oil Pump and Splash Oil Intake Pressure bar Atmosphaeric Oil Pressure bar 4 0 Oil Capacity l 4 2 Ambient Temperature C 5 45 Cooling Air Volume m h 5 500 Voltage 400 V 3 phase 50 Hz Protection Class Drive Motor IP 54 Drive Power kW 18 5 RPM Motor min 1 2 890 Start Star Delta Noise level dB A 88 from a...

Page 9: ...on 02 04 2020 Unit Assembly D E S C R I P T I O N No Designation 1 Gastight Inlet Filter Housing 2 Oil Pressure Monitoring 4 Breathing Air Filter Housing 5 Safety Valve 3 Intermediate Pressure Gauges 6 Outlet 10L 1 2 3 4 3 5 6 ...

Page 10: ...Page A 8 A LW 720 E Version 02 04 2020 Switchboard D E S C R I P T I O N 1 2 3 4 5 No Designation 1 Emergency shut off switch 2 Hour counter 3 ON button 4 OFF button 5 Drain test button ...

Page 11: ...Page A 9 A LW 720 E Version 02 04 2020 Flow chart D E S C R I P T I O N ...

Page 12: ...A S A F E T Y P R E C A U T I O N S ...

Page 13: ...struction manual is complied with and inspection and maintenance requirements are en forced No change and modification to the unit can be made without the written agreement of the manu facturer The manufacturer is not liable for damage to persons or property resulting from unauthori sed modifications Operators Target groups in these instructions Operators Operators are persons who are authorized a...

Page 14: ...ety instructions on the unit Importance of notes and warning signs that are affixed to the compressor according to the applica tion or its equipment S A F E T Y P R E C A U T I O N S Warning High voltage Note Ensure correct direction of rotation ...

Page 15: ...petent personnel are permitted to use this product Comply with all local and national rules and regulations associated with this product Only trained and competent personnel are permitted to inspect repair and service the product Only authentic L W parts and accessories may be used for maintenance work Otherwise the proper functioning of the product may be impaired Do not use faulty or incomplete ...

Page 16: ...that the machine is only taken into operation under safe and functional conditions Only operate the compressor if all protective and safety equipment e g detachable protective equipment are provided and in good working order Check the compressor at least once per day for obvious damage and defects Inform the respon sible department person immediately if anything is not as is should be including op...

Page 17: ...a warning sign on the main switch The machine and especially the connections and fittings should be cleaned from oil fuel and maintenance products at the beginning of the maintenance repair Do not use aggressive cleaning agents Use fibre free cleaning cloths Switch off compressor and clean with a slightly damp cloth Remove dirt from cooling pipes by using a brush After cleaning examine all pipes f...

Page 18: ...o not stand or work under suspended loads Also separate from minor relocation machinery system of any external energy supply Before recommissioning reconnect the machine to the mains according to regulations When recommissioning proceed according to the operating instructions Safety regulations Inspections according to legal and local obligatory regulations regarding accident prevention are carrie...

Page 19: ...A I N S TA L L AT I O N ...

Page 20: ...to sunlight If possible install unit in such a manner that the compressor fan can intake fresh air from outside Ensure adequate ventilation and exhaust air opening When locating the compressor in rooms of less than 30 m space where natural ventilation is not ensured or other systems having high radiation are operating in the same room measures must be taken to provide artificial ventilation Observ...

Page 21: ...Page A 19 A LW 720 E Version 02 04 2020 Dimensions Fig Dimensions I N S T A L L A T I O N ...

Page 22: ...e To prevent serious damage ensure that the cooling air flow can flow freely The following minimum distances must be adhered Front side min 1500 mm sides and rear side min 500 mm distance to the ceiling min 500 mm Avoid anything in this area which can restrict the cooling air flow Note Minimum distances must be adhered i I N S T A L L A T I O N 500 500 500 1500 ...

Page 23: ...prevent serious damage ensure that the cooling air flow can flow freely The necessary cooling air flow can be calculated by using the following formula 300 x drive power kW required cooling air flow m h Example 11kW motor 300 x 11kW 3300 m h required cooling air flow The fan capacity for fresh air and warm air must meet at least the required cooling air flow The fans must have the same capacity I ...

Page 24: ...ng should be done in accordance with the valid regulations of the responsible electricity supply company When connecting the unit to the electrical supply check the compressor direction of rotation see chapter Maintenance Check turning direction Fuse the motor correctly see table use slow blow fuses Warning Work on the electrical equipment on with the machine unit may only be carried out by qualif...

Page 25: ...box I N S T A L L A T I O N Recommended fuses for 360 500 V operating voltage Nominal motor power Fusing start A Connection in mm kw A Direct Star Delta Contactor supply Motor S D 18 5 36 50 6 4 22 41 50 10 4 30 55 63 10 6 37 68 100 80 16 6 Recommended fuses for 220 240 V operating voltage Nominal motor power Fusing start A Connection in mm kw A Direct Star Delta Contactor supply Motor S D 18 5 63...

Page 26: ...A O P E R AT I O N ...

Page 27: ... E R A T I O N Important operation instructions Note Ensure that all persons handling the compressor are familiar with function and operation of the unit i Wear hearing protection When working on a running machine always wear hearing protection ...

Page 28: ... stop the compressor by pushing the OFF button and contact an authorised electrician 3 Check oil pressure 4 Run the compressor for about 2 minutes 5 Caution When optionally equipped with an external filling panel close the opened lever filling valve carefully 6 Run the compressor up to maximum pressure and check if the final pressure switch shuts off the compressor If the final pressure switch doe...

Page 29: ...Refill new compressor oil at least when the oil level reached the middle of the indicated area Warning Check oil level daily Never start the compressor with a too low oil level Risk of accidental loss destruction or deterioration Check V belt tension The V belt could lose tension during transportation Please check the V belt tension before starting the compressor Tension V belt Correct V belt tens...

Page 30: ...otation is wrong the guide pistons of the 2nd and 3rd stages can not be sufficiently lubricated with the conse quence that the pistons will be damaged Furthermore cooling air flow will not be sufficient Warning Wrong impeller rotation direction Immediately after switching the compressor on check rotation direction Depending on the place of installation the phase sequence can influence the rotation...

Page 31: ...20 D A I L Y C O M M I S S I O N I N G Prior to daily operation observe the following Ensure cooling air can flow freely Check compressor oil level by the oil sight glass Check if filter cartridge is in place observe filter cartridge life ...

Page 32: ...ic tested check last test date are rated for the final pressure are free from humidity i 1 Close all filling valves 2 Connect the closed compressed air cylinders 3 Open cylinder valves 4 Start compressor by pushing the ON button 5 When the filling pressure gauge increases open the filling valves slowly 6 Fill compressed air cylinders to the desired pressure subsequently close the filling valves sl...

Page 33: ...utomatically shuts down the system when the corresponding final pressure is reached During filling process you can shut down the system at any time by pushing the red button OFF or the emergency stop only in case of emergency Note After automatic or manual switching off all pressure vessels and filter housings of the compressor will be automatically vented i ...

Page 34: ...ec ting faults at an early stage Indicated interstage pressures depend on final pressure settings The pressure gauges should show the following values at a final pressure of 300 bar 1st stage approx 4 2 bar g 2nd stage approx 17 bar g 3rd stage approx 70 bar g 4th stage approx end pressure Fig 1 Interstage pressure gauges Fig 2 Interstage pressure gauges in SILENT HOUSING O P E R A T I O N ...

Page 35: ...l temperature below 5 C lubrication not possible Oil temperature higher than 120 C oil viscosity too low Oil pump defective If oil pressure value stays above the maximum value Low oil temperature between 5 C and 10 C Should stay within the range of tolerance when operation temperature is reached Oil pressure control If oil pressure remains outside the range of tolerance it can be adjusted at the o...

Page 36: ... 0 bar The red warning lamp Oil Pressure Monitoring lights up Possible causes of fault Wrong compressor rotation direction see rotation direction arrow Oil level too low not enough oil in the compressor Oil pump sieve contaminated Oil intake hose damaged defective Oil temperature below 5 C lubrication not possible Oil temperature higher than 120 C oil viscosity too low Oil pump defective Oil Press...

Page 37: ...A R E M E D Y I N G FA U LT S ...

Page 38: ...aky Replace Pipes heat exchanger broken Replace Condensate drain valves leaky Unscrew valves check sealing surfaces clean replace if necessary Final pressure switch stop unit Verify settings replace if necessary Piston of pneumatic condensate valve sticks Clean pneumatic condensate valve and restore function check replace o rings replace valve completely if necessary Air supply too low Cause of fa...

Page 39: ...arger diameter Wrong compressor rotation direction Ensure correct phase rotation Inlet and outlet valves contaminated defective Clean replace if necessary Safety valve leaks Cause of fault Remedy Inlet and outlet valves of the following pressure stage defective Clean replace if necessary Sinter filter of the following water separator blocked Replace Safety valve leaky Replace Oil Taste in the Air ...

Page 40: ...essure stages are not as prescribed control pressure of pneumatic condensate valve too low Check corresponding inlet and outlet valve re place if necessary Piston sealing of pneumatic condensate valve contaminated used up Clean replace if necessary Timer relais defective Replace Timer relais settings not correct Adjust as prescribed Compressor stops before final pressure Cause of fault Remedy Fina...

Page 41: ...ge already partly saturated before change Store filter cartridges properly dispose defective cartridges Cylinder s piston s or piston ring s defective Replace Operating temperature too high Ensure sufficient ventilation Oil consumption too high Cause of fault Remedy Cylinder s piston s or piston ring s defective Replace Compressor oil unsuitable Use prescribed oil quality Operating temperature too...

Page 42: ...A M A I N T E N A N C E A N D S E R V I C E ...

Page 43: ... necessary because all maintenance work can not be explained exactly and detailed in this manual Only use authentic spare parts for service work Danger Components under pressure such as hose ends can quickly come loose when manipula ted and can cause potentially fatal injuries due to the pressure surge Any work on system parts may only be performed in a pressure compensated state Warning Risk of b...

Page 44: ...al pressure and check function of final pressure switch Open manual drain valves of 2 3ltr filter hou sings Every 3 months or as required Maintenance work Type Quantity Order No Check automatic condensate drain open manual condensate taps Check Retorque all connections and bolts M A I N T E N A N C E A N D S E R V I C E At 25 operating hours Maintenance work Type Quantity Order No Oil change 5 5 0...

Page 45: ... M A I N T E N A N C E A N D S E R V I C E Annually Maintenance work Type Quantity Order No Oil change if less than 1000 operating hours 5 5 000001 Check opening pressure of final safety valve Clean coolers Clean all oil water separators if less than 500 operating hours Service intake filter depends on condition if less than 500 operating hours Check all connections for leakage Check V belt tensio...

Page 46: ...1 000178 Replace sintered metal filter of oil water separa tors 4th stage 2 000184 Replace sintered metal filter of pneumatic con densate valve 1 000188 Replace oil sieve and oil pump cover gasket 1 002569 Oil change 5 5 000001 Replace oil filter 1 003928 Replace o rings of the final filter housing 4 001287 Replace back up rings of the final filter housing 4 001285 Replace o rings of filter housin...

Page 47: ...1st 1 000349 Upper gasket 2nd 1 000254 Lower gasket 1st 1 002901 Lower gasket 2nd 1 003046 Every 4000 operating hours Latest in 10 years Maintenance work Type Quantity Order No Replace all o rings and gaskets of 1st 2nd 3rd and 4th stage o ring 4 010785 o ring 2 001296 Replace shaft seal 1 010175 Replace needle bearings for conrod 2nd 3rd and 4th stage 2nd stage 1 003281 3rd 4th stage 4 006698 1 0...

Page 48: ...motor until the V belt tension is sufficient Then tighten mounting nuts and check V belt tension We recommend using a V belt tension gauge Correct V belt tension Do not tension V belts too tight This damages bearings of compressor and motor The V belts should only be tensioned until there is no noise caused by slipping during start Motor Type Initial Installation Operation after running in Electri...

Page 49: ...operation of the system The oil level should be between the middle and upper end of the oil sight glass Never start the compressor with a too low oil level Refill new compressor oil at least when the oil level reached the middle of the indicated area Warning Check oil level daily Never start the compressor with a too low oil level Risk of accidental loss destruction or deterioration Oil sight glas...

Page 50: ...anually Fill oil by using a funnel Check oil level The oil level should be between the middle and upper end of the oil sight glass Screw oil fill port manually in and tighten with the adjustable wrench The oil oil filter change is now completed Maintenance intervals First oil oil filter change after 25 operating hours total hours All further changes after each 1 000 operating hours Oil and oil cap...

Page 51: ...e placing respect mounting direction Be sure to position the arrow see Fig Pos 1 from the new oil sieve opposite to inlet and return ports of the pump see Fig Pos 2 Remount the cover with the 4 cover screws Tightening torque 4 5 8 N The oil sieve change is now completed Maintenance intervals We recommend cleaning or replacing the oil sieve every 1 000 working hours 009545 Oil sieve 009546 oil pump...

Page 52: ...se Adjust the pressure switch in steps of a quarter turn Restart the compressor after every adjustment step to verify the actual cut out pressure Example settings Note Do not adjust the final pressure switch to the safety valve pressure The final pressure switch has to be adjusted to min 10 bar below the safety valve pressure Otherwise the safety valve can open during operation This considerably r...

Page 53: ...ump valves about every 15 minutes To release the complete condensate through the black plastic hoses we recommend using an 60 l container at least The drain noise can be kept to a minimum by using a silencer Maintenance intervals We recommend to clean oil and water separators every 500 operating hours or at least once a year to check for corrosion damage and to replace o rings if necessary All oil...

Page 54: ...n manually Remove bottom part Fig 4 Change o ring previously grease new o ring Press in bottom part Mount oil water separators Change sinter filter which is sitting between oil water separator housing and condensate drain ourtlet connection Fig 5 Tighten pipe connections and mounting screws The oil water separator maintenance is now completed Fig 2 Change sinter filter Fig 4 Bottom part Fig 3 Chan...

Page 55: ...osen nut at the separator top Change sinter filter Fig 2 Reassemble all parts and tighten nut Change o ring previously grease new o ring Fig 3 Place separator top and tighten ring nut manually Replace silencer Mount oil water separators Tighten pipe connections and mounting screws The oil water separator maintenance is now completed Fig 1 Loosen ring nut Fig 3 Change o ring Fig 2 Change sinter fil...

Page 56: ...ilter cover o ring and bach up ring Reassemble filter cover and filter housing Note the correct position of th filter back up After you have screwed it completely loosen the filter co ver about 90 This avoids a terminals of the filter cover due to a hard shaking while operation The filter cartridge change is now completed Fig 1 Loosen pipe connections and mounting screws Fig 2 Loosen pipe connecti...

Page 57: ...rews Remove pneumatic condensate valve Loosen connection Fig 2 Change sinter filter Fig 3 Tighten horizontal screw Mount pneumatic condensate valve Tighten pipe connections and mounting screws Pneumatic condensate valve maintenance is now completed Fig 2 Loosen connection Fig 3 Change sinter filter Note Clean all parts thoroughly before assembly i M A I N T E N A N C E A N D S E R V I C E ...

Page 58: ...ty approx 2 3 l All breathing air filter cartridges are factory vacuum sealed We recommend unpacking the filter cartridges just before installation Filter cartridges which are exposed too long could be saturated with moisture and become unusable Maintenance intervals Filter cartridges should be changed at the following intervals at 20 C or more often depending on humidity and ambient temperature 5...

Page 59: ...cartridge and place it with the filter tool in the filter housing Screw the new filter cartridge hand tight in by using the filter tool Screw the cover of the filter housing first manually in After it has been completely screwed in turn cover anticlo ckwise for 90 This avoids tightening of the cover due to vibration The filter cartridge change is now completed Fig 1 Unscrew the filter housing cove...

Page 60: ...ions and nuts Fig 3 Remove filter housing Dismount filter housing base Change o ring and back up ring previously grease both Fig 4 Screw filter base tight in Mount filter housing Connect pipe connections and tighten Adjust u clamps and tighten nuts The filter housing maintenance is now completed Fig 2 Change o ring and back up rings Fig 4 Change o ring and back up rings Fig 3 Loosen u clamps and p...

Page 61: ...ced every 1 000 working hours depending on pollution grade Inlet filter cartridge change Inlet filter cartridge change as follows Loosen cover Change inlet filter cartridge and o ring Refit cover The inlet filter cartridge change is now completed Air inlet filter housing Note Dirty filters make intaking air difficult and reduce delivery capacity Risk of compressor overheating i Inlet filter housin...

Page 62: ...are combined inlet and outlet valves The first and second stage valves are plate valves The third and fourth stage contains a spring operated piston which acts inside a bronze cylin der Maintenance intervals All valves should be replaced after 2 000 working hours due to normal wear and tear To replace valves the cylinder heads have to be removed There are no special tools required to replace the s...

Page 63: ...lue settings Safety valves with removed seals have to be immediately che cked for the prescribed settings and replaced if necessary The safety valve of the final stage is furthermore equipped with a knurled screw to be activated once Turning the knurled screw clockwise could vent the valve completely and therefore the final filter housing During normal operation conditions the knurled screw has to...

Page 64: ...ed air from blowing off final pressure gauge 0 bar When the adjusted opening pressure is reached 150 and 180 bar the purified compressed air flows via pressure maintai ning and non return valve to the filling valve The value of the opening pressure of the pressure maintaining valve can be read at the final pressure gauge When opening pressure is reached the pressure gauge value increases within a ...

Page 65: ...he safety valve should open when reaching working pressure of the compressor If not switch off the unit and take out of service until the safety valve has been replaced Switch off the compressor Disconnect the compressor from the electrical power supply and protect against unexpected restart Remove the cover of the switch box Switch off the Test Safety Valve switch pressure switch will be activate...

Page 66: ...sure of approx 150 bar Verify the compressor for release noises A slight hiss of the air inlet filter nozzle can be ignored If release noises occur localise blow off position s Switch off the compressor Disconnect the compressor from the electrical power supply and protect against unexpected restart Remove the cover of the switch box Switch off the leak test switch solenoids will be acti vated Mou...

Page 67: ...er than 1000 result Test is applicable Example Filter housing 2 3 l Maximum operating pressure 350 bar Content volume 2 3 litres 350 bar x 2 3 litres 805 805 is smaller than 1000 result Test is applicable Pressure equipment from 200 up to 1000 have to be tested as follows 1 Examination after 5 years by a qualified person or authorized organisations Visual inspection inside and outside 2 Examinatio...

Page 68: ...A M A I N T E N A N C E R E C O R D S ...

Page 69: ...r By adding themselves to this list the person that signs it confirms having been given a yearly introduction instruction about the function and operation of the compressor unit Furthermore they have be informed about the relevant safety rules and regualtions TRG DGRL BetrSichV GSG GSGV M A I N T E N A N C E R E C O R D S ...

Page 70: ...Page A 68 A LW 720 E Version 02 04 2020 Top up oil oil change Date Operating hours Oil quantity l Name M A I N T E N A N C E R E C O R D S ...

Page 71: ...Page A 69 A LW 720 E Version 02 04 2020 Cartridge change Date Operating hours Difference Name M A I N T E N A N C E R E C O R D S ...

Page 72: ...Page A 70 A LW 720 E Version 02 04 2020 Maintenance work Description Date signature M A I N T E N A N C E R E C O R D S ...

Page 73: ...Page A 71 A LW 720 E Version 02 04 2020 Replaced Parts Designation Part number Date signature M A I N T E N A N C E R E C O R D S ...

Page 74: ...A S T O R A G E ...

Page 75: ...alves Store the compressor in a cool dry place free from dust and contamination A dust cover is recommended as long as condensation can be avoided If compressor unit should be stored for a period of more than one year an oil change is strongly recommended before it s been re used Fuel driven units only fill up fuel tank to top level to avoid corrosion De conservation commissioning After the compre...

Page 76: ...roceed according to the operating instructions Disposal The product must be disposed in accordance with national waste disposal regulations and by an appropriate waste disposal company Electric and electronic components EU wide regulations for the disposal of electric and electronic appliances which have been defined in the EU Directive 2002 96 EC and in national laws are effective from August 200...

Page 77: ...B Operating Instructions ECC Electronic compressor control www uebler net Version 11 12 E ...

Page 78: ...ay II M270 9 Settings Menu M300 10 Set Stop Pressure automatic mode M320 11 Set Restart Pressure automatic mode M330 11 Set Stop Pressure semi automatic mode M340 11 Test Menu M400 12 Test Solenoids M420 12 Test safety valve M430 13 Test stop without venting M440 13 Statistics Menu M500 14 Maintenance Menu M600 15 Confirm Maintenance M680 16 Operation Mode M700 17 Language Menu M750 17 Adjusting D...

Page 79: ...tructions is excluded from warranty and liability for this product Carry out other commissioning steps only if you have fully understood the following contents Before commissioning and using the unit carry out all the essential preliminary work and measures concerning legal regulations and safety These are described on the following pages of this operation manual G E N E R A L I N F O R M A T I O ...

Page 80: ...ls automatically displayed Required service part numbers automatically displayed Fully adjustable pressure ranges for start and stop Warning messages Housing Open Emergency Switch Check of end pressure safety valve possible Auto switch off when system is not running Extendable by additional modules e g external filling panel Easy to operate menu Door position switch housing open message Load free ...

Page 81: ...ic compressor control Page B 5 B D E S C R I P T I O N Switchboard No Description 1 LCD Display 2 Key Pad 3 LED Display Compressor OFF 4 LED Display Power 5 LED Display Compressor ON 1 2 5 4 3 Version 271012 001 E ...

Page 82: ...t Starts the compressor 0 Stop Stops the compressor Leads to the submenus Charging 0 min Total 0 0 h Start 1 Stop 0 Help OFF Final Press 0bar The following keys can now be used After typing the key the following Selection Menu appears Present filling time in minutes Total operation hours Key 1 to start compressor Key 0 to stop compressor Key leads to submenus Current operation state Off Present fi...

Page 83: ...ings Key 3 leads to submenu Settings 4 Test Key 4 leads to submenu Test 5 Statistics Key 5 leads to submenu Statistics 6 Maintenance Key 6 leads to submenu Maintenance 7 Operation Mode Key 7 leads to submenu Operation mode M100 Return Key leads back to Main Menu Note At any time the unit can be started with key 1 or shut down with key 0 Caution Risk of accident during maintenance work i O P E R A ...

Page 84: ...mperature of the final stage cylinder head 6 Oil Temp Key 6 shows the oil temperature 7 Display II Key 7 shows Display II M200 Return Key leads back to Main Menu Charging 0 min Total 0 0 h Start 1 Stop 0 Help OFF Press 0 bar 1st Stage 0 0 bar Inter Stage Pressure Display Pushing key 2 in the Display Menu leads to the Inter Stage Pressure 1 Display Menu Use keys 3 to 6 in the Menu Display I to chan...

Page 85: ...he Selection Menu leads to Menu Display II Press Temp 4 0 C 0 5 0 D 0 6 0 E 0 7 0 F 0 bar C Display II M270 Return Key leads back to Main Menu This display shows further customer specific pressure and temperature values O P E R A T I O N A N D F U N C T I O N Version 271012 001 E ...

Page 86: ...t Stop Pressure 9 Close Key 9 leads back to submenu Selection M300 Return Key leads back to Main Menu Use menu M700 to change between Automatic and Semi Automatic mode Restart pressure can only be set in Automatic Mode Prior to setting the pressure start the safety valve test Attention during maintenance During automatic mode the compressor can automatically start by itself at any time depending o...

Page 87: ...e Current restart pressure 7 New Value Key 7 if restart pressure should be changed XXX bar XXX indicates modified restart pressure 4 030 310 Chooseable pressure range for restart pressure 8 Confirm Key 8 confirms new restart pressure M330 Return Key leads back to Main Menu Actual 180 bar Set Stop Pressure semi automatic mode M340 Only valid in semi automatic mode see menu M700 Set Stop Pressure Cu...

Page 88: ...thout Venting 9 Close Key 9 leads back to submenu Selection M400 Return Key leads back to Main Menu Test Solenoids M420 Pushing key 2 in the Selection Menu leads to Submenu Test Solenoids 3 open Key 3 opens solenoids 7 close Key 7 closes solenoids 9 Close Key 9 leads back to submenu Test M420 Return Key leads back to Main Menu Test Solenoids Note This menu can not be left unless solenoids have bee...

Page 89: ...essure safety valve This would limit the maximum operating over pressure of the unit in case of malfunction i Test stop without venting M440 Pushing key 4 in the Test Menu leads to Menu Test Stop without Venting Test stop without venting 5 Stop Key 5 stops compressor during test run 6 Vent Key 6 vents compressor after leak search has been finished Pressure 0 Shows current filling pressure bar 9 Cl...

Page 90: ...r of compressor starts Maximum working pressure of unit set by safety valve test 9 Close Key 9 leads back to submenu Selection M500 Return Key leads back to Main Menu Max Press 000 bar Push key 5 to get information on which ECC software version is currently installed on your system M505 i e By pushing key 2 the total load cycles of the filter housing are being indicated O P E R A T I O N A N D F U...

Page 91: ...ce Key 9 leads back to submenu Selection M600 Return Key leads back to Main Menu 9 Close Remaining hours depend on the type At the end of any remaining hours the display indicates a warning message Furthermore the display informs about any possibly necessary spare parts with the corresponding L W service part number Attention during maintenance During automatic mode the compressor can automaticall...

Page 92: ...silencer 5 Valves Key 5 receipts change of valves 6 Oil filter Key 6 receipts oil filter M680 Return Key leads back to Main Menu Maintenance Confirm Maintenance 9 Close Key 9 leads back to submenu Hours remaining M680 Return Key leads back to Main Menu Operation Hours Meter Set Display confirms any reset of Hours remaining with the following message O P E R A T I O N A N D F U N C T I O N Version ...

Page 93: ... Key 2 activates automatic mode 3 Semi Automatic Key 3 activates semi automatic mode 4 bar mpa Key 4 selects between bar and MPa optional 5 Sprache Key 5 leads to the Language Menu 9 Close Key 9 leads back to submenu Selection M700 Return Key leads back to Main Menu Language Menu 2 German 3 English 4 French 5 Spanish 6 Dutch 7 Language II Key 7 optional language e g Chinese M750 Return Key leads b...

Page 94: ...play can be adjusted with an adjusting screw on the back of the control Software Update Software updates can only be carried out by L W To carry out an update the device has to be send to the L W service Adjust brightness Adjust brightness O P E R A T I O N A N D F U N C T I O N Version 271012 001 E ...

Page 95: ...eratursensor Oil temperature sensor 004840 Öldruckaufnehmer 0 6 bar Oil pressure sensor 0 6 bar 006890 Druckaufnehmer 420 bar Version 0 600 bar Pressure sensor 420 bar version 0 600 bar 002143 Endstufe Druckaufnehmer 0 400 bar Final stage pressure sensor 0 400 bar 003501 Zylinderkopf Temperatursensor Cylinderhead temperature sensor 002141 002142 002143 003888 004840 Druckaufnehmer Pressure sensor ...

Page 96: ...net Manufacturer in terms of 97 23 EC The full name and address of the manufacturer is Lenhardt Wagner GmbH An der Tuchbleiche 39 68623 Hüttenfeld Germany Phone 49 0 62 56 85 88 0 0 Fax 49 0 62 56 85 88 0 14 E Mail service lw compressors com Internet www lw compressors com Version 271012 001 E ...

Page 97: ...C ERSATZTEILLISTEN SPARE PARTS LISTS DETAILANSICHTEN DETAILED VIEWS ...

Page 98: ...be 19 Öl Wasserabscheider 1 Stufe Oil Water Separator 1st Stage Microsoft Publisher 21 Öl Wasserabscheider 2 Stufe Oil Water Separator 2nd Stage Microsoft Publisher 23 Öl Wasserabscheider 3 Stufe Oil Water Separator 3rd Stage Microsoft Publisher 25 Filter 0 8l Filter 0 8ltr 27 Filtergehäuse 2 3 l Filter Housing 2 3 ltr 29 Pneumatisches Kondensatventil Pneumatic Condensate Valve 31 Druckhalteventil...

Page 99: ...chraubung T06SCFX Connection T06SCFX 000820 Verschraubung WE15LRCFX Elbow Connection WE15LRCFX 000838 Verschlussstopfen VSTIR1 4EDA3C Plug VSTIR1 4EDA3C 000839 Verschlussstopfen VSTI R3 8 ED A3C PlugVSTI R3 8 ED A3C 000863 Winkelverschraubung 90 WE18L R1 2 A3C Elbow Connection WE18L R1 2 A3C 000918 Reduzierung RI1X1 2CFX Reducer RI1X1 2CFX 000919 Reduzierung RI3 4X1 2CFX Reducer RI3 4X1 2CFX 00102...

Page 100: ...Stufe Lower valve gasket Copper LW 720 1st stage 003046 Untere Aludichtung Saug u Druckventil für Kolben Ø55mm Lower gasket in outlet valve for piston Ø55mm 003060 Zylinder Ø14mm 4 Stufe Cylinder Ø14mm 4th stage 003140 Kompressionszylinder Ø25mm 3 Stufe Cylinder Ø25mm 3rd stage 003142 Ventilkopf 1 Stufe Valve Head 1st stage 003145 Zylinder Ø55mm gehärtet 2 Stufe Cylinder Ø55mm hardened 2nd stage 0...

Page 101: ...O Ring 91x2 NBR70 O ring 91x2 NBR 70 010776 Wellendichtring 45x72x7AS NBR Shaft Seal 45x72x7AS NBR 010785 O Ring 128 x 2 0 NBR70 O Ring 128 x 2 0 NBR70 010786 O Ring 165 x 2 0 NBR70 O Ring 165 x 2 0 NBR70 010840 Ölrohr für Wellendichtring Kurbelwelle Oil Tube Crankshaft 010994 Zylinderrollenlager NJ 306 C3 Cylindrical Roller Bearing NJ 306 C3 C 3 LW 720 E ...

Page 102: ...C Version 13 08 2020 D E T A I L A N S I C H T D E T A I L E D V I E W Kompressorblock Compressor Block C 4 LW 720 E ...

Page 103: ...llenlager Roller bearing 004876 Ölpumpenmitnehmerschraube M6x12mm Drive bolt M6x12mm 006353 Anlaufscheibe mit Fase Thrust Washer chamfered version 006354 Anlaufscheibe Thrust Washer 006698 Nadellager Ø30xØ22x16mm NK2216 Needle bearing Ø30xØ22x16mm NK2216 008826 Pleuel 3 4 Stufe inkl Nadellager Conrod 3rd 4th Stage c w needle bea ring 006078 Senkkopfschraube M4x10mm DIN7991 Countersunk Screw M4x10m...

Page 104: ...C Version 30 03 2020 D E T A I L A N S I C H T D E T A I L E D V I E W Kurbelwelle Crankshaft C 6 LW 720 E ...

Page 105: ...erungsring I23 DIN472 Circlip I23 DIN472 003144 Kolben Ø115mm LW 720 1 Stufe Piston Ø115mm LW 720 1st stage 003809 Kolben Ø115mm inkl Kolbenringe Kol benbolzen Piston Ø115mm c w Rings Piston Pin 004604 Kolbenringe Ø115mm Satz Set of Piston Rings Ø115mm 006655 Kolbenbolzen Piston Pin Kolben 1 Stufe Piston 1st Stage C 7 LW 720 E ...

Page 106: ...C Version 23 11 2018 D E T A I L A N S I C H T D E T A I L E D V I E W Kolben 1 Stufe Piston 1st Stage C 8 LW 720 E ...

Page 107: ...iption 001356 Sicherungsring I22 DIN472 Circlip I22 DIN472 003146 Kolben Ø55mm ohne Kolbenringe Piston Ø55mm w o piston rings 003988 Kolbenbolzen für Kolben Ø55 mm Piston Pin for piston Ø55mm 006159 Kolbenringe Ø55mm unbeschichtet Set of Piston Rings Ø55mm uncoated Kolben 2 Stufe Piston 2nd Stage C 9 LW 720 E ...

Page 108: ...C Version 23 11 2018 D E T A I L A N S I C H T D E T A I L E D V I E W Kolben 2 Stufe Piston 2nd Stage C 10 LW 720 E ...

Page 109: ...be M6x20mm DIN7991 10 9 Counter Sunk Screw M6x20mm DIN7991 10 9 001356 Sicherungsring I 22 DIN472 Circlip I 22 DIN472 002374 Kompressionskolben Ø25mm Stahl Piston Ø25mm steel 002682 Führungskolben 3 4 Stufe Guide Piston 3rd 4th Stage 002683 Kolbenbolzen Ø22x62mm Piston Pin Ø22x62mm 005766 Haltesegment Saug Führungskolben Clamp Guide Piston Kolben 3 Stufe Piston 3rd Stage C 11 LW 720 E ...

Page 110: ...C Version 13 08 2020 D E T A I L A N S I C H T D E T A I L E D V I E W Kolben 3 Stufe Piston 3rd Stage C 12 LW 720 E ...

Page 111: ...N7991 10 9 Counter Sunk Screw M6x20mm DIN7991 10 9 001356 Sicherungsring I 22 DIN472 Circlip I 22 DIN472 002375 Kompressionskolben Ø14mm Stahlau sführung Piston 3rd Stage Ø14mm steel version 002682 Führungskolben 3 4 Stufe Guide Piston 3rd 4th Stage 002683 Kolbenbolzen Ø22x62mm Piston Pin Ø22x62mm 005766 Haltesegment Führungskolben Clamp Guide Piston Kolben 4 Stufe Piston 4th Stage C C 13 LW 720 E...

Page 112: ...C Version 13 08 2020 D E T A I L A N S I C H T D E T A I L E D V I E W Kolben 4 Stufe Piston 4th Stage C 14 LW 720 E ...

Page 113: ...1mm In Outlet Valve Ø71mm 000369 Saug Druckventil Ø122mm In Outlet Valve Ø122mm 000370 Saug Druckventil inkl Dichtungen Upper Alloy including gaskets 000549 Saug Druckventil komplett In Outlet Valve complete 000550 Saug Druckventil komplett In Outlet Valve complete Saug und Druckventil 1 4 Stufe In and Outlet Valve 1st 4th Stage C 15 LW 720 E ...

Page 114: ...C Version 23 11 2018 E R S A T Z T E I L L I S T E S P A R E P A R T L I S T Saug und Druckventil 1 4 Stufe In and Outlet Valve 1st 4th Stage C 16 LW 720 E ...

Page 115: ...95 Doppelnippel G1 2 FF33MS Double Nipple G1 2 FF33MS 000921 Reduzierung RI1 2X1 4CFX Reducer RI1 2X1 4CFX 001059 Zylinderschraube M8x75mm DIN912 8 8 ZN Allen Bolt M8x75mm DIN912 8 8 ZN 001159 Stoppmutter M8 DIN985 ZN Lock Nut M8 DIN985 ZN 001181 U Scheibe A8 DIN125 ZN Washer A8 DIN125 ZN 002281 Verschraubung mit fester Mutter EW06LOMDA3C Connection with fixed nut EW06LOM DA3C 003928 Ölfilterpatro...

Page 116: ...C Version 30 03 2020 D E T A I L A N S I C H T D E T A I L E D V I E W Ölverteilerblock Oil Manifold Block C 18 LW 720 E ...

Page 117: ...lhahn Oil Drain Valve ball valve 002153 Ölablassschlauch inkl Kugelhahn Oil drain hose c w ball valve 006417 Ölablassschlauch Oil drain hose 008655 Linsenflanschschraube mit Innensechs kant M6x12 mm DIN 7380F 10 9 Lens Head Screw M6x12 mm DIN 7380F 10 9 009772 Halter Öl Ablassschlauch Holder Oil drain hose Baugruppe Ölablassschlauch Assembly Oil Drainage Tube C 19 LW 720 E ...

Page 118: ...C Version 23 11 2018 D E T A I L A N S I C H T D E T A I L E D V I E W Baugruppe Ölablassschlauch Assembly Oil Drainage Tube C 20 LW 720 E ...

Page 119: ...0773 Manometerverschraubung Connection Pressure Gauge 000777 Dichtring für Manometerverschraubung Seal Ring for Pressure Gauge 000820 Verschraubung WE15LRCFX Elbow Connection WE15LRCFX 000837 Verschlussstopfen VSTI R1 8 ED Plug VSTI R1 8 ED 000838 Verschlussstopfen VSTIR1 4EDA3C Plug VSTIR1 4EDA3C 000863 Winkelverschraubung WE18L R1 2 A3C Elbow Connection WE18L R1 2 A3C 001132 Sechskantschraube M1...

Page 120: ...C Version 13 08 2020 D E T A I L A N S I C H T D E T A I L E D V I E W Wasserabscheider 1 Stufe Water Separator 1st Stage C 22 LW 720 E ...

Page 121: ...rverschraubung Connection Pressure Gauge 000777 Dichtring für Manometerverschraubung Seal Ring for Pressure Gauge 000810 Verschraubung WE12LR1 2CFX Elbow Connection WE12LR1 2CFX 000837 Verschlussstopfen VSTI R1 8 ED Plug VSTI R1 8 ED 000838 Verschlussstopfen VSTIR1 4EDA3C Plug VSTIR1 4EDA3C 000863 Winkelverschraubung WE18L R1 2 A3C Elbow Connection WE18L R1 2 A3C 001132 Sechskantschraube M12x25mm ...

Page 122: ...C Version 30 03 2020 D E T A I L A N S I C H T D E T A I L E D V I E W Wasserabscheider 2 Stufe Water Separator 2nd Stage C 24 LW 720 E ...

Page 123: ...3 Manometerverschraubung Connection Pressure Gauge 000777 Dichtring für Manometerverschraubung Seal Ring for Pressure Gauge 000810 Verschraubung WE12LR1 2CFX Elbow Connection WE12LR1 2CFX 000837 Verschlussstopfen VSTI R1 8 ED Plug VSTI R1 8 ED 000838 Verschlussstopfen VSTIR1 4EDA3C Plug VSTIR1 4EDA3C 000921 Reduzierung RI1 2X1 4CFX Reducer RI1 2X1 4CFX 001132 Sechskantschraube M12x25mm DIN933 8 8 ...

Page 124: ...C Version 13 08 2020 D E T A I L A N S I C H T D E T A I L E D V I E W Wasserabscheider 3 Stufe Water Separator 3rd Stage C 26 LW 720 E ...

Page 125: ...schraubung Manometer MAVE10LRCF Connection Pressure Gauge MAVE10LRCF 006363 Haltebügel Filtergehäuse 0 8 l U Clamp Filterhousing 0 8 ltr 006364 Halteschalen Filtergehäuse 0 8 l Bracket Filter Housing 0 8 ltr 006374 Blechhalter Filterbehälter 0 8l Bracket Filter Case 0 8l 000553 Sicherheitsventil 225 bar mit TÜV Safety Valve 225 bar c w TÜV 000554 Sicherheitsventil 250 bar mit TÜV Safety Valve TÜV ...

Page 126: ...Version 23 11 2018 C D E T A I L A N S I C H T D E T A I L E D V I E W Filter 0 8l Filter 0 8ltr C 28 LW 720 E ...

Page 127: ...Düse für Filtergehäuse Jet Filter Housing 001159 Stoppmutter Lock Nut M8 001181 U Scheibe A8 Washer A8 001285 Stützring Filtergehäuse Back up Ring Filter Housing 001287 O Ring Filtergehäuse O Ring filter housing 002140 Filterschlüssel 1 7 2 3 Liter Behälter Filter tool 1 7 2 3 Litre 002147 Haltebügel für Filtergehäuse ES U Clamp for filter housing ES 002426 Filtergehäuse kompl Filter housing 00307...

Page 128: ...C Version 23 11 2018 D E T A I L A N S I C H T D E T A I L E D V I E W Filtergehäuse 2 3 l Filter Housing 2 3 ltr C 30 LW 720 E ...

Page 129: ... Body pneumatic condensate valve 000498 U Scheibe DIN 125 A6 Washer DIN 125 A6 000737 Verschraubung GE08LR1 8CFX Connection GE08LR1 8CFX 000761 Winkelverschraubung WE08LRA3CX Elbow Connection WE08LRA3CX 001026 Zylinderschraube M6x40mm DIN912 8 8 ZN Allen Bolt M6x40mm DIN912 8 8 ZN 006614 O Ring Pneumatisches Kondensatventil 20 x 2 NBR90 O Ring 20 x 2 NBR90 pneumatic conden sate valve 010941 Pneum ...

Page 130: ...C Version 23 11 2018 D E T A I L A N S I C H T D E T A I L E D V I E W Pneum Kondensat Ablassventil Pneumatic Condensate Valve C 32 LW 720 E ...

Page 131: ...ventil Feder adapter Spring Adapter PMV spring adapter 000514 Stift Druckhalte Rückschlagventil Stud PMV 000515 Gehäuse Druckhalte Rückschlagventil Main Body PMV 000516 Nutring Druckhalterückschlagventil 5 x 10 x 5 2 5 90 Blau Seal Ring PMV 5 x 10 x 5 2 5 90 blue 000517 Feder Druckhalterückschlagventil Coil Spring PMV 000518 Unterlegscheibe Messing Washer Brass 000519 Dichtkappe Druckhalte Rücksch...

Page 132: ...C H T D E T A I L E D V I E W Druckhalteventil Pressure Maintaining Valve 000514 Repair kit 003548 Consists of Yellow marked P N s Reparatursatz 003548 Bestehend aus Gelbmarkierte Bestellnummern 000516 000517 000519 000508 000520 C 34 LW 720 E ...

Page 133: ...ow Connection WE08LRA3CX 000765 Schneidring PSR 08 LX Olive Seal PSR 08 LX 000766 Überwurfmutter M08LCFX Nut M08LCFX 000921 Reduzierung RI1 2X1 4CFX Reducer RI1 2X1 4CFX 000948 Flachkopfzylinderschraube M6x16mm DIN6912 8 8 ZN Pan Head Bolt M6x16mm DIN6912 8 8 ZN 001027 Zylinderschraube M6x30 Allen Bolt M6x30 001294 O Ring 68x3 NBR90 O Ring 68x3 002466 Kondensatbehälter für Abscheider Condensate Bo...

Page 134: ...C Version 23 11 2018 D E T A I L A N S I C H T D E T A I L E D V I E W Kondensatabscheider Endstufe Condensate Separator Final Stage C 36 LW 720 E ...

Page 135: ...00802 Schneidring 10mm PSR10LX Olive Seal Ring PSR10LX 000807 Verschraubung GE12LR1 2CFX Connection GE12LR1 2CFX 000813 Mutter M12LCFX Union Nut M12LCFX 000814 Schneidring PSR12LX Olive Seal PSR12LX 001027 Zylinderschraube M6x30 Allen Bolt M6x30 001156 Stoppmutter M6 DIN985 ZN Lock Nut M6 001294 O Ring 68x3 NBR90 O Ring 68x3 001431 Befestigungsring Wasserabscheider Lock Ring Water Separator 002563...

Page 136: ...C Version 23 11 2018 D E T A I L A N S I C H T D E T A I L E D V I E W Ölabscheider Oil Separator C 38 LW 720 E ...

Page 137: ...hne Stecker Solenoid Coil NC 230V AC 40bar w o plug 000799 Verschraubung mit fester Mutter EVGE 10L R ED Connection with fixed nut EVGE 10L R ED 001546 Aludichtring für Magnetventile 18 x 13 2 x 2 5mm Alloy Seal Ring for solenoid 18 x 13 2 x 2 5mm 003573 Wellenscheibe Magnetventil Shaft washer solenoid valve 004002 Magnetventil Solenoid Valve Magnetventil 1 2 Stufe Solenoid Valve 1st 2nd Stage C 3...

Page 138: ...Solenoid NC 80 bar 2xG1 4 230V c w coil 000799 Verschraubung mit fester Mutter EVGE 10L R ED Connection with fixed nut EVGE 10L R ED 001546 Aludichtring für Magnetventile 18 x 13 2 x 2 5mm Alloy Seal Ring for solenoid 18 x 13 2 x 2 5mm 003573 Wellenscheibe Magnetventil Shaft washer solenoid valve 004002 Magnetventil 40 80 bar NC 2x 1 4 Gehäuse Messing ohne Spule Solenoid Valve 40 80 bar NC 1 2 G1 ...

Page 139: ...nscheibe SPA 212 3 Pulley SPA 212 3 005687 Antriebsmotor 18 5 kW E Motor 18 5 kW 006097 Sechskantschraube M6x35mm DIN933 ZN Hexagon Bolt M6x35mm DIN933 ZN 001509 Ventilatorflügel Kunststoff Ausführung Fan Blade plastic version 001412 Keilriemen Ex geschützt SPA 2282 V Belt ATEX specification SPA 2282 000498 U Scheibe A6 DIN 125 ZN Washer A6 DIN 125 ZN 001192 Federring A12 DIN 127 ZN Spring Washer ...

Page 140: ...C Version 23 11 2018 D E T A I L A N S I C H T D E T A I L E D V I E W Motor Motor C 42 LW 720 E ...

Page 141: ...E A T T A C H M E N T Version 11 12 E ...

Page 142: ...essure 160 350 bar 1 100 l min Suitable media Media resistant non corrosive gases The safety valve is used for protection of pressurized components eg pipelines pressure vessels or the compressor itself The hand wheel on the top of the safety valve is marked with the adjusted set pressure 1 Identification of set pressure 2 Seal 3 Fixing screws1 4 Venting srew hand wheel 5 Identification serial num...

Page 143: ...he problem is on the system A constant blowing of the safety valve is not permitted the sealing seat of the valve can be damaged The error on the system must be detected and repaired before further filling operations The safety valve may only be used if it is ensured that the maximum flowrate of the system does not exceed the blow off rate of the safety valve The safety valve may only be used with...

Page 144: ...iately Notes The safety valve must be installed directly on the protected pressure vessel and or the plant The safety valve must be installed in an upright position The flow area of the port must be greater than the valve opening Protect valve against splashes Maintenance In accordance with current Pressure Equipment Directives the safety valve must be periodically checked for operation and reliab...

Page 145: ...INFORMATIONON THE SERVICE LIFE OF L W HIGH PRESSURE HOSES ...

Page 146: ...mbly and before commissioning 3 Recurring test 4 Procedure for hose lines found to be defective 4 Test intervals 4 Persons qualified to test hose lines 5 Maintenance Replacing hose lines 6 Immediate replacement of hose lines 6 Service life Service life of L W high pressure hoses 7 Storage Storing hose lines 8 Annex Scope of testing test criteria 10 11 ...

Page 147: ...e regarding type scope and deadlines as well as the replacement intervals must be documented in writing as occupational health and safety measures The results of the tests must also be recorded e g together with the test report of the machine and kept at least until the next test The above mentioned tests may only be carried out by persons who are qualified to do so and who are authorized by the c...

Page 148: ... replaced at the same time precautions must be taken to prevent mix ups of the connections or the installation points Test intervals Deadlines for the recurring tests of the hose lines should already be set before commissioning Otherwise there is a risk that work equipment will continue to be used or operated for too long without being tested The intervals between the recurring tests must be selec...

Page 149: ...st be sufficiently familiar with the conditions that demand the performance of tests such as the result of the risk assessment or observations during the working day there is proof of recent professional activity in the area of the upcoming tests and appropriate further training The qualified person must also have gained experience with regard to the tests to be performed or comparable tests He or...

Page 150: ...site properties and reduces the performance of the hose lines This limits the service life of a hose line and the operator must ensure that hose lines are replaced at appropriate intervals Immediate replacement of hose lines Hose lines must be replaced immediately in the event of the following defects External visible damage to the hose line or fittings Internal damage to the tube or the reinforce...

Page 151: ...he guideline given above for a replacement interval of six years for hose lines meeting normal requirements includes a maximum storage period of two years The guideline value of two years for hose lines meeting increased requirements represents the maximum permissible service life A prolongation of the guideline values given above for replacement intervals is possible if appropriate test values an...

Page 152: ...Avoid storage temperatures below 10 C for elastomers Do not use ozone generating light fittings or electrical devices that may produce sparks in the immediate vicinity Ozone generating light fittings are for example fluorescent light sources mercury vapor lamps The most favorable storage conditions are temperatures between 15 C and 25 C as well a relative humidity below 65 During storage hose line...

Page 153: ...ANNEX ...

Page 154: ...the hose is routed via a kink protector if necessary on the connecting element sufficient clearance prevents external mechanical influences or abrasion on the edges hose bridges prevent damage being caused by driving over the hose line hose guides such as hose saddles and sufficiently wide hose brackets protect loosely laid hose lines and a heat shield protects against high temperature exposure Ar...

Page 155: ...carried out before the functional test All parts of the system must be tested at least at the maximum working pressure that could be achieved taking into account all intended applications Are the hose lines and connecting elements free of leakage Have all hose lines withstood the pressure Note The installed hose lines should not be made from used hoses or used press fittings which have already bee...

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L&W Compressors LW 720 E, Operating Instructions Manual

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