L&W Compressors LW 230 E II Compact User manual

C H A P T E R O V E R V I E W
Operating Instructions ...............................................................................................................
............................................................................................................................................................
Spare Parts Lists ..........................................................................................................................
Options (if equipped) .................................................................................................................
Attachment ....................................................................................................................................
A
B
C
D
E
Manufacturer in terms of 2014/68/EU
The full name and address of the manufacturer is:
Lenhardt & Wagner GmbH
An der Tuchbleiche 39
68623 Hüttenfeld / Germany
Phone: [phone] - 85 88 0 - 0
Fax: [phone] - 85 88 0 - 14
E-Mail: [e-mail]
Internet: www.lw-compressors.com

S E R V I C E I N F O R M A T I O N / W A R R A N T Y
Compressor information
Type designation
Serial number
Date of construction
Purchase information
Purchase date
First commissioned on
Warranty period
Dealer's stamp
Warranty
L&W will uphold warranty claims made during a period of 12 months from the invoice date.
If the compressor was purchased from an official L&W dealer, the date on the dealer's invoice is
valid. Warranty claims can only be made on presentation of the 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 parts become the property of L&W. If maintenance work is carried out without our
knowledge or permission by the purchaser or a third party, we are absolved from any liability for
warranty claims. As a matter of principle, warranty claims can only be made by the initial purchaser.

A
Operating Instructions
Breathing Air Compressor
LW 230 E II Compact
LW 280 E II Compact
LW 320 E II Compact
Version: 20.05.2023

LW 230 E II Compact / LW 280 E II Compact / LW 320 E II Compact
Version: 20.05.2023
Page A - 2
A
T A B L E O F C O N T E N T S
Genera Information and Technica Data
Genera Information / Description of Warning Symbo s .................................................................... 4
Scope of De ivery .............................................................................................................................. 5
Technica Data .................................................................................................................................. 6
Unit Assemb y ................................................................................................................................... 7
Switchboard ..................................................................................................................................... 8
F ow chart ......................................................................................................................................... 9
Safety Precautions
Intended Use / Operators ................................................................................................................ 11
Safety instructions on the unit ........................................................................................................ 12
Genera Safety Precautions ............................................................................................................. 13
Unit customised safety notices ....................................................................................................... 14
Maintenance instructions ............................................................................................................... 15
Transportation instructions / Safety regu ations .............................................................................. 16
Insta ation
Insta ation in c osed rooms ............................................................................................................ 18
Dimensions ...................................................................................................................................... 19
Minimum distances ........................................................................................................................ 20
Venti ation ...................................................................................................................................... 21
E ectrica Insta ation ................................................................................................................ 22 - 23
Operation
Important operation instructions .................................................................................................... 25
First commissioning ................................................................................................................. 26 - 28
Dai y commissioning ....................................................................................................................... 29
Fi ing procedure ............................................................................................................................. 30
Switch off the compressor .............................................................................................................. 31
Remedying fau ts
............................................................................................................. 32 - 36
Maintenance and Service
Service, Repair and Maintenance .................................................................................................... 38
Maintenance Lists / Maintenance Interva s ............................................................................... 39 - 42
Service Kits ..................................................................................................................................... 43
Check V-be t tension / Tension V-be t .............................................................................................. 44
Compressor ubrication ................................................................................................................... 45
Oi change ...................................................................................................................................... 46
Oi sieve change ............................................................................................................................... 47
Manua condensation dump system ............................................................................................... 48

LW 230 E II Compact / LW 280 E II Compact / LW 320 E II Compact
Version: 20.05.2023
Page A - 3
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T A B L E O F C O N T E N T S
Maintenance and Service
Oi / Water separators 1st and 2nd stage - Maintenance ................................................................ 49
Fi ter housing / Fi ter cartridge ........................................................................................................ 50
Fi ter cartridge change ..................................................................................................................... 51
Fi ter housing - Maintenance ........................................................................................................... 52
In et fi ters / In et fi ter cartridge change ......................................................................................... 53
Cy inder heads and va ves ............................................................................................................... 54
Rep ace in et and out et va ve 1st stage ................................................................................... 55 - 56
Rep ace in et and out et va ves 2nd and 3rd stage .......................................................................... 57
Safety va ves ................................................................................................................................... 58
Pressure maintaining / non return va ve .......................................................................................... 59
Safety va ve test .............................................................................................................................. 60
Leak test ......................................................................................................................................... 61
Pressure gas vesse test ................................................................................................................... 62
Maintenance records and Storage
Maintenance records ............................................................................................................... 64 - 68
Conservation / storage of the compressor / De-conservation, commissioning ................................. 69
Transportation instructions / Disposa ............................................................................................. 70

LW 230 E II Compact / LW 280 E II Compact / LW 320 E II Compact
Version: 20.05.2023
Page A - 4
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Warning
Indicates a potentia y hazardous situation which, if not avoided, cou d resu t in physica
injury or damage to the product or environment.
Caution
Indicates an imminent y hazardous situation which, if not avoided, cou d resu t in serious
injury, physica injury or death.
Genera Information
We strong y recommend reading this manua thorough y prior to operation and fo ow a the safety
precautions precise y. Damage resu ting from any deviation from these instructions is exc uded from
warranty and iabi ity for this product. Carry out other commissioning steps on y if you have fu y
understood the fo owing contents.
Before commissioning and using the unit, carry out a the essentia pre iminary work and measures
concerning ega regu ations and safety. These are described on the fo owing pages of this
operation manua .
G E N E R A L I N F O R M A T I O N
!
!
Note
Indicates additiona information on how to use the unit.
i
Description of marks and warning signs
The fo owing warning signs are used in this document to identify the corresponding warning notes
which require particu ar attention by the user. The warning signs are defined as fo ows:

LW 230 E II Compact / LW 280 E II Compact / LW 320 E II Compact
Version: 20.05.2023
Page A - 5
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D E S C R I P T I O N
Scope of De ivery
Compressors are provided in different equipped versions.
Versions
Filling pressure versions:
• PN 225 bar
• PN 330 bar
• PN 225 / 330 bar
Specifications
Options
• Automatic condensate drain with condensate
container inc . condensate stop va ve
• Automatic stop at fina pressure
• Auto start system
• 200 and 300 bar para e fi ing pressures
• Oi pressure gauge and intermediate pressure
gauges
• Oi pressure monitoring c/w auto shut down
• Cy inder head temperature monitoring with
auto shut down
• 0.8 Prefi ter (En arged the ifetime of the
fi ter by approx. 5 hours)
• Puracon fi ter monitoring
• Additiona high pressure out et
• Power cab e and p ug
• Specia vo tages / frequencies on request
• E ectro motor (Standard E-Motor / 400V /
3 Phase / 50 Hz)
• Painted stee frame and fan be t guard (RAL
6026)
• Hour counter
• Motor protection switch (bei LW 230 E II
Comact a s Option)
• Start/ Stop and emergency stop switch
• Phase monitoring c/w shut down at wrong
direction of rotation
• Manua condensate drain
• 1 x Fi ing hose c/w fi ing va ve
• Pressure maintaining and non return va ve
• A pistons c/w stee piston rings
• Improved ubrication system with adjustab e
oi pump c/w oi sieve
• Low pressure oi pump and fi ter
• Oi - / Water separators in stain ess stee
• Safety va ves after each stage
• 3 x concentric suction/pressure va ves
• Fi ing pressure to your choice (200 or 300
bar)
• Connections to your choice (DIN 200 bar or
300 bar, CGA 200 bar or 300 bar and INT)
• 1.7 iter fi ter container
• Breathing air purification an accordance to EN
12021

LW 230 E II Compact / LW 280 E II Compact / LW 320 E II Compact
Version: 20.05.2023
Page A - 6
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D E S C R I P T I O N
Technica Data
Technica Data LW 230 E LW 280 E LW 320 E
Capacity [ /min]: 230 280 320
Max. Operating Pressure [bar]: 350 350 350
RPM [min
-1
]: 1080 1300 1450
Number of Pressure Stages: 3 3 3
Cy inder Bore 1st Stage [mm]: Ø 95 Ø 95 Ø 95
Cy inder Bore 2nd Stage [mm]: Ø 40 Ø 40 Ø 40
Cy inder Bore 3rd Stage [mm]: Ø 18 Ø 18 Ø 18
Medium: Compressed Air / Breathing Air
Intake Pressure: atmospheric
Oi Pressure [bar]: +0.6 to +4.0 +0.6 to +4.0 +0.6 to +4.0
Oi Capacity [ ]: 1.8 1.8 1.8
Intake Temperature [°C]: 0 < +45 0 < +45 0 < +45
Ambient Temperature [°C]: +5 < +45 +5 < +45 +5 < +45
Coo ing Air Vo ume [m³/h]: > 1650 > 2250 > 2250
Vo tage: 400 V / 3 phase / 50 Hz
Protection C ass Drive Motor: IP 54 IP 54 IP 54
Drive Power [kW]: 5.5 7.5 7.5
RPM Motor [min
-1
]: 2890 2890 2890
Start: Star/De ta
Noise eve from a distance of 1 m [dB(A)]: 82 83 83
Dimensions W x D x H [mm]:
Weight [kg]: approx. 195 approx. 195 approx. 195
Content Vo ume Fi ter housing [ ]: 1.7 1.7 1.7
1200 x 600 x 900
Breathing air treatment capacity [m3]: 900 at +20°/
72 Hours
900 at +20°/
54 Hours
900 at +20°/
46 Hours

LW 230 E II Compact / LW 280 E II Compact / LW 320 E II Compact
Version: 20.05.2023
Page A - 7
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Unit Assemb y
D E S C R I P T I O N
No. Designation
1 Fi ing va ve
2 Fi ing pressure gauge
3 Fi ing hose
4 Fi ter housing
5 Pressure maintaining / non return va ve
1
2
4
5
3
Note
Fo owing options for the shown compressor:
Auto shut down, automatic condensation drain, two additiona fi ing hoses, intermediate
pressure gauge, oi pressure disp ay, remote contro box.
i

LW 230 E II Compact / LW 280 E II Compact / LW 320 E II Compact
Version: 20.05.2023
Page A - 8
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Switchboard
D E S C R I P T I O N
No. Designation
1 ON button
2 OFF button
3 Emergency shut-off switch
4 Motor protection warning ight
5 Hour counter
1
2
3
4
5