L&W Compressors LW 700 ES II User manual

C H A P T E R O V E R V I E W
Operating Instructions
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ECC - Electronic Compressor Control (if equipped
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Spare Parts Lists
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Options (if equipped
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Attachment
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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
686 3 Hüttenfeld / Germany
Phone: +49 (0) 6 56 - 85 88 0 - 0
Fax: +49 (0) 6 56 - 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 1 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.

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Operating Instructions
Breathing Air Compressor
LW 700 ES II
Version: 02/04/2020-E

LW 700 ES II
Version: 02.04.2020
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T A B L E O F C O N T E N T S
General Information & Technical Data
General Information / Description of Warning Symbols .................................................................... 4
Scope of Delivery .............................................................................................................................. 5
Technical Data .................................................................................................................................. 6
Technical Data - Overview Operating Noise dB(A) .............................................................................. 7
Over View LW 700 ES II ..................................................................................................................... 8
Switchboard ..................................................................................................................................... 9
Flow Chart ...................................................................................................................................... 10
Safety Precautions
Intended Use / Operators ................................................................................................................ 11
Safety Instructions on the Unit ....................................................................................................... 13
General Safety Precautions ............................................................................................................. 14
Unit Customised Safety Notices ...................................................................................................... 15
Maintenance Instructions ............................................................................................................... 16
Transportation Instructions / Safety Regulations ............................................................................. 17
Installation
Installation in Closed Rooms ........................................................................................................... 19
Dimensions ...................................................................................................................................... 20
Minimum Distances ........................................................................................................................ 21
Ventilation ...................................................................................................................................... 22
Electrical Installation ................................................................................................................ 23 - 24
Operation
Important Operation Instructions ................................................................................................... 26
First Commissioning ................................................................................................................ 27 - 29
Daily Commissioning ...................................................................................................................... 30
Filling Procedure ............................................................................................................................. 31
Switch Off Compressor Unit ............................................................................................................ 32
Remedying Faults ............................................................................................................. 34 - 37
Maintenance & Service
Service, Repair and Maintenance .................................................................................................... 39
Maintenance Lists / Maintenance Intervals ............................................................................... 40 - 43
Service Kits ..................................................................................................................................... 44
Check V-Belt Tension / Tension V-Belt .............................................................................................. 45
Compressor Lubrication / Check Oil Level ........................................................................................ 46
Oil Change ...................................................................................................................................... 47
Oil Sieve Change ............................................................................................................................. 48
Final Pressure Switch ...................................................................................................................... 49

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T A B L E O F C O N T E N T S
Maintenance &Service
Automatic Condensation Dump System ......................................................................................... 50
Oil / Water Separators 1st, 2nd & 3rd Stage - Maintenance ..................................................... 51 - 52
Condensate Stop Valve- Maintenance ............................................................................................ 53
Pneumatic Condensate Valve - Maintenance .................................................................................. 54
Filter Housing / Filter Cartridge ....................................................................................................... 55
Filter Cartridge Replacement ............................................................................................................ 56
Filter Housing - Maintenance ........................................................................................................... 57
0.8 ltr Filter Element Change ........................................................................................................... 58
0.8 ltr Pre-Filter Housing - Maintenance .......................................................................................... 59
Inlet Filters / Inlet Filter Cartridge Change ....................................................................................... 60
Cylinder Heads and Valves .............................................................................................................. 61
Replace In- / Outlet Valves 1st & 2nd Stage ............................................................................. 62 - 63
Replace In- / Outlet Valves 3rd & 4th Stage .................................................................................... 64
Replace Piston Rings and Needle Bearings of the 2nd, 3rd & 4th Stage .................................... 65 - 66
Safety Valves ................................................................................................................................... 67
Pressure Maintaining / Non Return Valve ........................................................................................ 68
Safety Valve Test ............................................................................................................................. 69
Leak Test ......................................................................................................................................... 70
Pressure Vessel Test ........................................................................................................................ 71
Maintenance Records .............................................................................................................. 72 - 77
Storage
Conservation / Storage of Compressor Unit ..................................................................................... 78
De-conservation, Re-commissioning ............................................................................................... 78
Transportation Instructions / Disposal ............................................................................................. 79

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Warning
Indicates a potentially hazardous situation which, if not avoided, could result in physical
injury or damage to the product or environment.
Caution
Indicates an imminently hazardous situation which, if not avoided, could result in serious
injury, physical injury or death.
General Information
We strongly recommend to read this manual thoroughly prior to operation and to follow all the sa-
fety precautions precisely. Damage resulting from any deviation from these 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 operation manual.
G E N E R A L I N F O R M A T I O N
!
!
Note
Indicates additional information on how to use the unit.
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Description of Marks & Warning Signs
The following warning signs are used in this document to identify the corresponding warning notes
which require particular attention by the user. The warning signs are defined as follows:

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D E S C R I P T I O N
Scope of Delivery
Compressors are provided in different equipped versions.
Versions
Filling pressure versions:
• PN 225 bar
• PN 330 bar
• PN 225 / 330 bar
Specifications
Options
• Auto start system
• Up to 6 additional hoses available
• 4- fold filling panel installed at front door
• 200 and 300 bar parallel filling pressures
• Oil pressure gauge
• Intermediate pressure gauges
• Oil pressure monitoring c/w auto shut down
• Cylinder head temperature monitoring with
auto shut down
• Oil temperature display with auto shut down
• Puracon filter monitoring
(auto shut down also available)
• ECC Control
• Phase monitoring c/w shut down at wrong
direction of rotation
• Block heating device
• 420 bar Version
• Power cable and plug
• Special voltages / frequencies on request
• Air cooler connecting kit
• Filling connectors to your choice
(DIN 200 or 300 bar, CGA 200 or 300 bar, INT)
• Electro motor
(400V / 3 Phase / 50 Hz)
• Painted steel housing (RAL 6026)
• Sound insulated housing
• Automatic condensate drain
• Automatic stop at final pressure
• Hour counter
• Operation panel with start/stop and
condensate test button, emergency stop
switch
• Motor protection switch
• Safety door switches
• Pressure maintaining- / non return valve
• Pistons with steel piston rings
• Improved lubrication system c/w oil filter
• Low pressure oil pump c/w oil sieve
• Oil- / water separators after each stage
• Safety valves after each stage
• 0.8 ltr. pre filter
• Condensate-stop-valves
• 10 ltr. condensate tank with venting silencer
• Three service covers
• 4 concentric suction/pressure valves
• High pressure outlet, size: 10L
• Breathing air purification an accordance to
EN 12021

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D E S C R I P T I O N
Technical Data
Technical Data LW 700 ES II
Flow Rate [l/min]: 700
Max. Operating Pressure [bar]: 420
RPM [min-1]: 1,390
Number of Pressure Stages: 4
Cylinder Bore 1st Stage [mm]: Ø 105
Cylinder Bore 2nd Stage [mm]: Ø 50
Cylinder Bore 3rd Stage [mm]: Ø 25
Medium: Compressed Air / Breathing Air
Intake Pressure: atmospheric
Oil Pressure (at operating temperature) [bar]: +2.0 (±0.1)
Oil Capacity [l]: 2.9
Intake Temperature [°C]: 0 < +45
Ambient Temperature [°C]: +5 < +45
Cooling Air Volume [m³/h]: > 5,550
Voltage: 400 V / 3 phase / 50 Hz
Protection Class Drive Motor: IP 55
Drive Power [kW]: 18.5
RPM Motor [min-1]: 2,940
Start: Star/Delta
Noise Level [dB(A)]: 75 (±2) at distance of 1 m
Dimensions W x D x H [mm]: 995 x 1,487 x 1,800
Weight [kg]: 605
Content Volume Final Filter Housing [l]: 2.3
Cylinder Bore 4th Stage [mm]: Ø 14
Content Volume Pre-Filter Housing [l]: 0.8

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D E S C R I P T I O N
Technical Data - Overview Operating Noise dB(A)

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Over View LW 700 ES II
D E S C R I P T I O N
No. Designation
1 Filling Pressure Gauge
2 Switchboard
3 Filter Housing
4 Pressure Maintaining / Non Return Valve
5 Pre-Filter, Volume: 0.8 Litre
1
3
4
5
2

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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

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D E S C R I P T I O N
Flow Chart

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S A F E T Y P R E C A U T I O N S

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Intended Use
Only use the unit in perfect condition for its intended purpose, safety and intended use and in ac-
cordance with the operating instructions! In particular disorders that may affect safety have to be
eliminated immediately!
Use the unit exclusively for the determined medium (see "Technical Data"). Any other use that is not
specified is not authorized. The manufacturer/supplier shall not be liable for any damages resulting
from such use. Such risk lies entirely with the user. Authorization for use is also under the condition
that the instruction 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 and briefed for using the compressor.
Qualified personnel
Qualified personnel are persons who are entitled to repair, service, modify and maintain the system.
S A F E T Y P R E C A U T I O N S
Warning
Only trained personnel are permitted to work on the unit!
!
Warning
Work on the electrical equipment on / with the machine / unit may only be carried out by
qualified electricians.
!

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Safety 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!

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S A F E T Y P R E C A U T I O N S
General Safety Precautions
• Read the Operating Instructions of this product carefully prior to use.
• Strictly follow the instructions. The user must fully understand and strictly observe the instruc-
tions. Use the product only for the purposes specified in the intended use section of this
document.
• Do not dispose the operating instructions. Ensure that they are retained and appropriately used
by the product user.
• Only trained and competent 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 products. Do not modify the product.
• Inform L&W in the event of any product or component fault or failure.
• The quality of the air supply must meet EN12021 specifications for breathing air.
• Do not use the product in areas prone to explosion or in the presence of flammable gases.
The product is not designed for these applications.
An explosion might be the result if certain conditions apply.

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S A F E T Y P R E C A U T I O N S
Unit Customised Safety Notices
Organisational Measures
• In addition to the instruction manual, observe and comply with universally valid legal and other
obligatory regulations regarding accident prevention and environment protection.
• In addition to the instruction manual, provide supplementary instructions for supervision and
monitoring duties taking into consideration exceptional factors e.g. with regard to organisation
of work, production, personnel employed.
• Supervise personnel’s work in accordance with the instruction manual, taking into account safety
and danger factors.
• Observe all safety and danger notices on the compressor and check readability and
completeness.
Safety Instructions Operation
• Take measures to ensure 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 operation per-
formance). Shut down the machine immediately if necessary and lock it.
• In case of malfunction, stop the compressor immediately and lock it.
Repair malfunctions immediately.
• If there is a failure in the electric energy supply, shut down the machine / unit immediately.
• Ensure safe and environmentally friendly disposal of consumables and old parts.
• The stipulated hearing protectors must be worn.
• Soundproofing equipment on the compressor has to be activated in safety function during ope-
ration.
• When handling with fats, oils and other chemical agents, observe the note for the product-
related safety.

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S A F E T Y P R E C A U T I O N S
Maintenance Instructions
• Hoses have to be checked by the operator (pressure and visual inspection) at predetermined
intervals, even if no safety-related defects have been detected.
• Immediately repair any damage. Escaping compressed air can cause injury.
• Depressurise system and pressure lines before beginning repair work.
• Adjustment, maintenance and inspection activities and keep appointments, including informati-
on on replacement parts / equipment, prescribed in the operating instructions have to be respec-
ted.
• If the machine / equipment is completely off during maintenance and repair work, it must be
protected against unexpected restart. Turn off main control device and remove the key and/or
display 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.
• Only clean the compressor with a slightly damp cloth. Remove dirt from cooling pipes by using a
brush.
• After cleaning, examine all pipes for leaks, loose connections, chafing and damage.
Immediately eliminate any faults.
• Always retighten any pipe connector looseed for maintenance or repair work.
• If it is necessary to remove safety devices for maintenance and/or repair work, these must be re-
placed and checked immediately after completion of the maintenance and/or repair work.
• The electrical equipment of the compressor must be regularly checked. Defects, such as loose
screw connections or burnt wires, must be immediately rectified by electrically skilled personnel.
• Only personnel with particular knowledge and experience with pneumatics may carry out work
on pneumatic equipment.
• Only personnel with particular knowledge and experience in gas equipment may carry out work
on gas equipment.

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S A F E T Y P R E C A U T I O N S
Transportation Instructions
• Parts which need to be dismantled for transport purposes must be carefully replaced and secured
before taking into operation.
• The transport may only be carried out by trained personnel.
• For transportation, only use lifting devices and equipment with sufficient lifting power.
• Do 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
carried out by the manufacturer or by authorised expert personnel. No guarantees whatsoever
are valid for damage caused or favoured by the non-consideration of these directions for use.

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I N S T A L L A T I O N