Atlas Copco ZR 110 User manual

ZR 110, ZR 132, ZR 145, ZR 160, ZR 200, ZR 250, ZR 275, ZT 110,
ZT 132, ZT 145, ZT 160, ZT 200, ZT 250, ZT 275
Instruction book

Atlas Copco
ZR 110, ZR 132, ZR 145, ZR 160, ZR 200, ZR 250, ZR 275,
ZT 110, ZT 132, ZT 145, ZT 160, ZT 200, ZT 250, ZT 275
Instruction book
Original instructions
Copyright Notice
Any unauthorized use or copying of the contents or any part thereof is prohibited.
This applies in particular to trademarks, model denominations, part numbers and
drawings.
This instruction book is valid for CE as well as non-CE labelled machines. It meets the
requirements for instructions specified by the applicable European directives as
identified in the Declaration of Conformity.
2015 - 09
No. 2920 1815 04
www.atlascopco.com

Table of contents
1 Safety precautions..........................................................................................................7
1.1 SAFETY ICONS................................................................................................................................... 7
1.2 GENERAL SAFETY PRECAUTIONS............................................................................................................7
1.3 SAFETY PRECAUTIONS DURING INSTALLATION...........................................................................................8
1.4 SAFETY PRECAUTIONS DURING OPERATION.............................................................................................. 9
1.5 SAFETY PRECAUTIONS DURING MAINTENANCE OR REPAIR......................................................................... 10
2 General description......................................................................................................12
2.1 INTRODUCTION.................................................................................................................................12
2.2 AIR SYSTEM.................................................................................................................................... 20
2.3 COOLING AND CONDENSATE DRAIN SYSTEM........................................................................................... 25
2.4 ELEKTRONIKON REGULATED DRAIN (ERD)............................................................................................27
2.5 OIL SYSTEM.................................................................................................................................... 31
2.6 REGULATING SYSTEM........................................................................................................................ 33
2.7 ENERGY RECOVERY.......................................................................................................................... 36
2.8 LOW LOAD COMPENSATOR FOR IMD DRYER..........................................................................................39
2.9 SMARTBOX AND SMARTLINK.................................................................................................... 41
3 Elektronikon regulator................................................................................................. 44
3.1 ELEKTRONIKON® REGULATOR............................................................................................................. 44
3.2 CONTROL PANEL.............................................................................................................................. 46
3.3 FUNCTION KEYS............................................................................................................................... 47
3.4 SCROLL KEYS.................................................................................................................................. 48
3.5 EMERGENCY STOP BUTTON................................................................................................................ 48
3.6 CONTROL MODE SWITCH....................................................................................................................49
3.7 EXTERNAL COMPRESSOR STATUS INDICATION ........................................................................................50
3.8 EXTERNAL COMMUNICATION................................................................................................................50
3.9 CONTROL PROGRAMS........................................................................................................................52
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3.10 CALLING UP MENUS.......................................................................................................................... 53
3.11 MAIN SCREEN MENU......................................................................................................................... 53
3.12 STATUS DATA MENU..........................................................................................................................54
3.13 MEASURED DATA MENU..................................................................................................................... 56
3.14 HOURS MENU.................................................................................................................................. 56
3.15 SERVICE MENU................................................................................................................................ 57
3.16 TEST MENU..................................................................................................................................... 59
3.17 MODIFY SETTINGS MENU....................................................................................................................60
3.18 MODIFYING REGULATION SETTINGS...................................................................................................... 60
3.19 MODIFYING PROTECTION SETTINGS ..................................................................................................... 61
3.20 MODIFYING SERVICE SETTINGS............................................................................................................63
3.21 TIMERS MENU..................................................................................................................................64
3.22 CONFIGURATION MENU...................................................................................................................... 67
3.23 SAVED DATA MENU........................................................................................................................... 68
3.24 SHOW MORE MENU........................................................................................................................... 69
3.25 UNLOAD-LOAD MENU.........................................................................................................................70
3.26 PROGRAMMABLE SETTINGS.................................................................................................................70
4 Elektronikon regulator type overview.........................................................................75
4.1 ELEKTRONIKON® CONTROLLER TYPE OVERVIEW......................................................................................75
5 Elektronikon regulator................................................................................................. 77
5.1 ELEKTRONIKON® REGULATOR............................................................................................................. 77
5.2 CONTROL PANEL.............................................................................................................................. 79
5.3 FUNCTION KEYS............................................................................................................................... 80
5.4 SCROLL KEYS.................................................................................................................................. 81
5.5 EMERGENCY STOP BUTTON................................................................................................................ 81
5.6 EXTERNAL COMPRESSOR STATUS INDICATION ........................................................................................82
5.7 CONTROL PROGRAMS........................................................................................................................82
5.8 CALLING UP MENUS.......................................................................................................................... 84
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5.9 MAIN SCREEN MENU......................................................................................................................... 85
5.10 STATUS DATA MENU..........................................................................................................................86
5.11 MEASURED DATA MENU..................................................................................................................... 89
5.12 COUNTERS MENU............................................................................................................................. 90
5.13 TEST MENU..................................................................................................................................... 91
5.14 MODIFY PARAMETERS MENU............................................................................................................... 92
5.15 MODIFYING PARAMETERS................................................................................................................... 92
5.16 MODIFYING PROTECTION SETTINGS...................................................................................................... 93
5.17 MODIFYING SERVICE PLANS................................................................................................................ 94
5.18 PROGRAMMING CLOCK FUNCTION.........................................................................................................95
5.19 MODIFYING CONFIGURATION SETTINGS..................................................................................................99
5.20 SERVICE MENU.............................................................................................................................. 101
5.21 SAVED DATA MENU......................................................................................................................... 103
5.22 PROGRAMMABLE SETTINGS...............................................................................................................103
6 Elektronikon® GraphicPlus controller......................................................................112
6.1 ELEKTRONIKON® GRAPHICPLUS CONTROLLER..................................................................................... 112
6.2 CONTROL PANEL............................................................................................................................ 114
6.3 DIGITAL OUTPUT CONTACTS..............................................................................................................115
6.4 ICONS USED.................................................................................................................................. 116
6.5 MAIN SCREEN................................................................................................................................120
6.6 CALLING UP MENUS........................................................................................................................ 125
6.7 SERVICE MENU.............................................................................................................................. 126
6.8 PROTECTIONS MENU....................................................................................................................... 131
6.9 WEEK TIMER MENU.........................................................................................................................134
6.10 INFO MENU....................................................................................................................................144
6.11 TEST MENU................................................................................................................................... 145
6.12 COUNTERS....................................................................................................................................146
6.13 MODIFYING THE PRESSURE BAND...................................................................................................... 148
6.14 INPUTS MENU.................................................................................................................................150
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6.15 OUTPUTS MENU............................................................................................................................. 155
6.16 EVENT HISTORY MENU.....................................................................................................................157
6.17 MODIFYING SETTINGS......................................................................................................................158
6.18 PROGRAMMABLE SETTINGS...............................................................................................................164
6.19 WEB SERVER................................................................................................................................ 165
7 Installation...................................................................................................................174
7.1 DIMENSION DRAWING...................................................................................................................... 174
7.2 DIN TO JIS ADAPTOR FLANGES........................................................................................................190
7.3 INSTALLATION PROPOSAL................................................................................................................. 194
7.4 INSTALLATION REQUIREMENTS FOR RUBBER COMPENSATORS...................................................................206
7.5 ELECTRIC CABLE SIZE, FUSES AND CABLE LENGTH................................................................................ 213
7.6 ELECTRIC CONNECTION................................................................................................................... 226
7.7 QUALITY OF SAFETY COMPONENTS.....................................................................................................231
7.8 COOLING WATER REQUIREMENTS.......................................................................................................231
7.9 GENERAL PICTOGRAPHS.................................................................................................................. 234
7.10 PICTOGRAPHS, ELEKTRONIKON CONTROL SYSTEM................................................................................ 235
8 Operating instructions............................................................................................... 237
8.1 INITIAL START-UP............................................................................................................................237
8.2 BEFORE STARTING..........................................................................................................................261
8.3 ROUTINE STARTING.........................................................................................................................266
8.4 STARTING AFTER EMERGENCY STOP OR SHUTDOWN.............................................................................. 269
8.5 DURING OPERATION........................................................................................................................271
8.6 CHECKING THE DISPLAY...................................................................................................................273
8.7 MANUAL LOADING/UNLOADING...........................................................................................................274
8.8 STOPPING.....................................................................................................................................277
8.9 TAKING OUT OF OPERATION..............................................................................................................281
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9 Maintenance................................................................................................................282
9.1 PREVENTIVE MAINTENANCE SCHEDULE................................................................................................282
9.2 MOTOR GREASING..........................................................................................................................285
9.3 OIL SPECIFICATIONS........................................................................................................................285
9.4 STORAGE AFTER INSTALLATION......................................................................................................... 285
10 Servicing procedures.................................................................................................286
10.1 AIR FILTERS.................................................................................................................................. 286
10.2 OIL AND OIL FILTER CHANGE.............................................................................................................287
10.3 SAFETY VALVES............................................................................................................................. 289
10.4 COOLERS..................................................................................................................................... 289
11 Problem solving..........................................................................................................293
11.1 PROBLEM SOLVING......................................................................................................................... 293
12 Technical data.............................................................................................................298
12.1 READINGS.....................................................................................................................................298
12.2 SETTINGS OF SAFETY VALVES........................................................................................................... 299
12.3 SETTINGS FOR OVERLOAD RELAY.......................................................................................................299
12.4 REFERENCE CONDITIONS................................................................................................................. 310
12.5 LIMITATIONS.................................................................................................................................. 311
12.6 COMPRESSOR DATA........................................................................................................................313
12.7 DRYER DATA................................................................................................................................. 315
13 Pressure equipment directives................................................................................. 316
14 Documentation............................................................................................................322
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1 Safety precautions
1.1 Safety icons
Explanation
Danger to life
Warning
Important note
1.2 General safety precautions
1. The operator must employ safe working practices and observe all related work safety requirements
and regulations.
2. If any of the following statements does not comply with the applicable legislation, the stricter of the
two shall apply.
3. Installation, operation, maintenance and repair work must only be performed by authorized, trained,
specialized personnel. The personnel should apply safe working practices by use of personal
protection equipment, appropriate tools and defined procedures.
4. The compressor is not considered capable of producing air of breathing quality. For air of breathing
quality, the compressed air must be adequately purified according to the applicable legislation and
standards.
5. Before any maintenance, repair work, adjustment or any other non-routine checks:
• Stop the machine
• Press the emergency stop button
• Switch off the voltage
• Depressurize the machine
• Lock Out - Tag Out (LOTO):
• Open the power isolating switch and lock it with a personal lock
• Tag the power isolating switch with the name of the service technician.
• On units powered by a frequency converter, wait 10 minutes before starting any electrical repair.
• Never rely on indicator lamps or electrical door locks before maintenance work, always
disconnect and check with measuring device.
If the machine is equipped with an automatic restart after voltage failure function and if
this function is active, be aware that the machine will restart automatically when the
power is restored if it was running when the power was interrupted!
6. Never play with compressed air. Do not apply the air to your skin or direct an air stream at people.
Never use the air to clean dirt from your clothes. When using the air to clean equipment, do so with
extreme caution and wear eye protection.
7. The owner is responsible for maintaining the unit in safe operating condition. Parts and accessories
shall be replaced if unsuitable for safe operation.
8. It is prohibited to walk or stand on the unit or on its components.
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9. If compressed air is used in the food industry and more specifically for direct food contact, Atlas
Copco recommends, for optimal safety, the use of certified Class 0 compressors in combination with
appropriate filtration depending on the application. Please contact your Atlas Copco Customer Center
for advice on specific filtration.
1.3 Safety precautions during installation
All responsibility for any damage or injury resulting from neglecting these precautions, or
non observance of the normal caution and care required for installation, operation,
maintenance and repair, even if not expressly stated, will be disclaimed by the
manufacturer.
Precautions during installation
1. The machine must only be lifted using suitable equipment in accordance with the applicable safety
regulations. Loose or pivoting parts must be securely fastened before lifting. It is strictly forbidden to
dwell or stay in the risk zone under a lifted load. Lifting acceleration and deceleration must be kept
within safe limits. Wear a safety helmet when working in the area of overhead or lifting equipment.
2. The unit is designed for indoor use. If the unit is installed outdoors, special precautions must be taken;
consult your supplier.
3. In case the device is a compressor, place the machine where the ambient air is as cool and clean as
possible. If necessary, install a suction duct. Never obstruct the air inlet. Care must be taken to
minimize the entry of moisture at the inlet air.
4. Any blanking flanges, plugs, caps and desiccant bags must be removed before connecting the pipes.
5. Air hoses must be of correct size and suitable for the working pressure. Never use frayed, damaged or
worn hoses. Distribution pipes and connections must be of the correct size and suitable for the
working pressure.
6. In case the device is a compressor, the aspirated air must be free of flammable fumes, vapors and
particles, e.g. paint solvents, that can lead to internal fire or explosion.
7. In case the device is a compressor, arrange the air intake so that loose clothing worn by people cannot
be drawn in.
8. Ensure that the discharge pipe from the compressor to the aftercooler or air net is free to expand under
heat and that it is not in contact with or close to flammable materials.
9. No external force may be exerted on the air outlet valve; the connected pipe must be free of strain.
10. If remote control is installed, the machine must bear a clear sign stating: DANGER: This machine is
remotely controlled and may start without warning.
The operator has to make sure that the machine is stopped and depressurized and that the electrical
isolating switch is open, locked and labelled with a temporary warning before any maintenance or
repair. As a further safeguard, persons switching on or off remotely controlled machines shall take
adequate precautions to ensure that there is no one checking or working on the machine. To this end,
a suitable notice shall be affixed to the start equipment.
11. Air-cooled machines must be installed in such a way that an adequate flow of cooling air is available
and that the exhausted air does not recirculate to the compressor air inlet or cooling air inlet.
12. The electrical connections must correspond to the applicable codes. The machines must be earthed
and protected against short circuits by fuses in all phases. A lockable power isolating switch must be
installed near the compressor.
13. On machines with automatic start/stop system or if the automatic restart function after voltage failure
is activated, a sign stating "This machine may start without warning" must be affixed near the
instrument panel.
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14. In multiple compressor systems, manual valves must be installed to isolate each compressor. Non-
return valves (check valves) must not be relied upon for isolating pressure systems.
15. Never remove or tamper with the safety devices, guards or insulation fitted on the machine. Every
pressure vessel or auxiliary installed outside the machine to contain air above atmospheric pressure
must be protected by a pressure relieving device or devices as required.
16. Piping or other parts with a temperature in excess of 70˚C (158˚F) and which may be accidentally
touched by personnel in normal operation must be guarded or insulated. Other high temperature
piping must be clearly marked.
17. For water-cooled machines, the cooling water system installed outside the machine has to be
protected by a safety device with set pressure according to the maximum cooling water inlet pressure.
18. If the ground is not level or can be subject to variable inclination, consult the manufacturer.
19. If the device is a dryer and no free extinguishing system is present in the air net close to the dryer,
safety valves must be installed in the vessels of the dryer.
Also consult following safety precautions: Safety precautions during operation and
Safety precautions during maintenance.
These precautions apply to machinery processing or consuming air or inert gas.
Processing of any other gas requires additional safety precautions typical to the
application which are not included herein.
Some precautions are general and cover several machine types and equipment; hence
some statements may not apply to your machine.
1.4 Safety precautions during operation
All responsibility for any damage or injury resulting from neglecting these precautions, or
non observance of the normal caution and care required for installation, operation,
maintenance and repair, even if not expressly stated, will be disclaimed by the
manufacturer.
Precautions during operation
1. Never touch any piping or components of the machine during operation.
2. Use only the correct type and size of hose end fittings and connections. When blowing through a hose
or air line, ensure that the open end is held securely. A free end will whip and may cause injury. Make
sure that a hose is fully depressurized before disconnecting it.
3. Persons switching on remotely controlled machines shall take adequate precautions to ensure that
there is no one checking or working on the machine. To this end, a suitable notice shall be affixed to
the remote start equipment.
4. Never operate the machine when there is a possibility of taking in flammable or toxic fumes, vapors
or particles.
5. Never operate the machine below or in excess of its limit ratings.
6. Keep all bodywork doors shut during operation. The doors may be opened for short periods only, e.g.
to carry out routine checks. Wear ear protectors when opening a door.
On machines without bodywork, wear ear protection in the vicinity of the machine.
7. People staying in environments or rooms where the sound pressure level reaches or exceeds 80 dB(A)
shall wear ear protectors.
8. Periodically check that:
• All guards are in place and securely fastened
• All hoses and/or pipes inside the machine are in good condition, secure and not rubbing
• No leaks occur
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• All fasteners are tight
• All electrical leads are secure and in good order
• Safety valves and other pressure relief devices are not obstructed by dirt or paint
• Air outlet valve and air net, i.e. pipes, couplings, manifolds, valves, hoses, etc. are in good
repair, free of wear or abuse
• Air cooling filters of the electrical cabinet are not clogged
9. If warm cooling air from compressors is used in air heating systems, e.g. to warm up a workroom,
take precautions against air pollution and possible contamination of the breathing air.
10. On water-cooled compressors using open circuit cooling towers, protective measures must be taken to
avoid the growth of harmful bacteria such as Legionella pneumophila bacteria.
11. Do not remove any of, or tamper with, the sound-damping material.
12. Never remove or tamper with the safety devices, guards or insulations fitted on the machine. Every
pressure vessel or auxiliary installed outside the machine to contain air above atmospheric pressure
shall be protected by a pressure relieving device or devices as required.
13. Yearly inspect the air receiver. Minimum wall thickness as specified in the instruction book must be
respected. Local regulations remain applicable if they are more strict.
Also consult following safety precautions: Safety precautions during installation and
Safety precautions during maintenance.
These precautions apply to machinery processing or consuming air or inert gas.
Processing of any other gas requires additional safety precautions typical to the
application which are not included herein.
Some precautions are general and cover several machine types and equipment; hence
some statements may not apply to your machine.
1.5 Safety precautions during maintenance or repair
All responsibility for any damage or injury resulting from neglecting these precautions, or
non observance of the normal caution and care required for installation, operation,
maintenance and repair, even if not expressly stated, will be disclaimed by the
manufacturer.
Precautions during maintenance or repair
1. Always use the correct safety equipment (such as safety glasses, gloves, safety shoes, etc.).
2. Use only the correct tools for maintenance and repair work.
3. Use only genuine spare parts for maintenance or repair. The manufacturer will disclaim all damage or
injuries caused by the use of non-genuine spare parts.
4. All maintenance work shall only be undertaken when the machine has cooled down.
5. A warning sign bearing a legend such as "Work in progress; do not start" shall be attached to the
starting equipment.
6. Persons switching on remotely controlled machines shall take adequate precautions to ensure that
there is no one checking or working on the machine. To this end, a suitable notice shall be affixed to
the remote start equipment.
7. Close the compressor air outlet valve and depressurize the compressor before connecting or
disconnecting a pipe.
8. Before removing any pressurized component, effectively isolate the machine from all sources of
pressure and relieve the entire system of pressure.
9. Never use flammable solvents or carbon tetrachloride for cleaning parts. Take safety precautions
against toxic vapors of cleaning liquids.
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10. Scrupulously observe cleanliness during maintenance and repair. Keep dirt away by covering the
parts and exposed openings with a clean cloth, paper or tape.
11. Never weld or perform any operation involving heat near the oil system. Oil tanks must be completely
purged, e.g. by steam cleaning, before carrying out such operations. Never weld on, or in any way
modify, pressure vessels.
12. Whenever there is an indication or any suspicion that an internal part of a machine is overheated, the
machine shall be stopped but no inspection covers shall be opened before sufficient cooling time has
elapsed; this to avoid the risk of spontaneous ignition of the oil vapor when air is admitted.
13. Never use a light source with open flame for inspecting the interior of a machine, pressure vessel, etc.
14. Make sure that no tools, loose parts or rags are left in or on the machine.
15. All regulating and safety devices shall be maintained with due care to ensure that they function
properly. They may not be put out of action.
16. Before clearing the machine for use after maintenance or overhaul, check that operating pressures,
temperatures and time settings are correct. Check that all control and shut-down devices are fitted and
that they function correctly. If removed, check that the coupling guard of the compressor drive shaft
has been reinstalled.
17. Every time the separator element is renewed, examine the discharge pipe and the inside of the oil
separator vessel for carbon deposits; if excessive, the deposits should be removed.
18. Protect the motor, air filter, electrical and regulating components, etc. to prevent moisture from
entering them, e.g. when steam cleaning.
19. Make sure that all sound-damping material and vibration dampers, e.g. damping material on the
bodywork and in the air inlet and outlet systems of the compressor, is in good condition. If damaged,
replace it by genuine material from the manufacturer to prevent the sound pressure level from
increasing.
20. Never use caustic solvents which can damage materials of the air net, e.g. polycarbonate bowls.
21. Only if applicable, the following safety precautions are stressed when handling refrigerant:
• Never inhale refrigerant vapors. Check that the working area is adequately ventilated; if
required, use breathing protection.
• Always wear special gloves. In case of refrigerant contact with the skin, rinse the skin with
water. If liquid refrigerant contacts the skin through clothing, never tear off or remove the latter;
flush abundantly with fresh water over the clothing until all refrigerant is flushed away; then
seek medical first aid.
Also consult following safety precautions: Safety precautions during installation and
Safety precautions during operation.
These precautions apply to machinery processing or consuming air or inert gas.
Processing of any other gas requires additional safety precautions typical to the
application which are not included herein.
Some precautions are general and cover several machine types and equipment; hence
some statements may not apply to your machine.
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2 General description
2.1 Introduction
General views
General view of ZR 110, ZR 132 and ZR 145 FF with Elektronikon controller
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General view of ZR 110, ZR 132 and ZR 145 FF with Elektronikon GraphicPlus controller (Model year 2010)
General view of ZR 110, ZR 132 and ZR 145 FF with Elektronikon GraphicPlus controller (Model year 2011)
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2920 1815 04 13

General view of ZR 160 up to ZR 275 FF with Elektronikon GraphicPlus controller
General view of ZT 110, ZT 132 and ZT 145 FF with Elektronikon controller
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General view of ZT 110, ZT 132 and ZT 145 FF with Elektronikon GraphicPlus controller (Model year 2010)
General view of ZT 110, ZT 132 and ZT 145 FF with Elektronikon GraphicPlus controller (Model year 2011)
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2920 1815 04 15

General view of ZT 160 up to ZT 275 FF with Elektronikon GraphicPlus controller
Ref. Name
AO Compressed air outlet
DRa Condensate drain receiver, aftercooler
DRi Condensate drain receiver, intercooler
MK4 Elektronikon regulator
MK5 Elektronikon GraphicPlus regulator
SVh Safety valve, high pressure
SVl Safety valve, low pressure
S2 Emergency stop button
WI Cooling water inlet
WO Cooling water outlet
These units are two-stage, electric motor driven screw compressors which deliver oil-free, pulsation-free
air.
ZR compressors are water-cooled.
ZT compressors are air-cooled.
The compressor is enclosed in a sound-insulated bodywork and includes mainly:
• Air filter
• Low-pressure compressor element
• Intercooler
• High-pressure compressor element
• Aftercooler
• Water separators
• Electric motor
• Drive coupling
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• Gear casing
• Elektronikon® control system
• Safety valves
Drive arrangement
On ARR E, the motor is flanged to the gear casing by means of a coupling housing. The motor/gear casing
unit is supported on the frame by vibration dampers.
On ARR 1, the motor is mounted on a separate subframe. The subframe and gear casing are supported on
the frame by vibration dampers.
Elektronikon control system
The compressor is controlled by an electronic regulator which:
• Controls the operation of the compressor
• Reduces the power consumption
• Warns the operator in case of an abnormal operating condition
• Protects the compressor
• Monitors components subject to service
• If activated, the regulator can automatically restart the compressor after voltage failure
Optional equipment
Following equipment is available as an option:
Full-Feature
The compressor is additionally provided with an IMD adsoption dryer. The dryer is integrated in the
bodywork and removes moisture from the compressed air.
Connections
This compressor can be provided on the compressed air outlet and water pipes with:
ANSI flanges
DIN flanges
DIN flanges + DIN to JIS adapter flanges
Separate air intake
This compressor is prepared to install separate ducting for cooling air flow and compressed air flow.
Motor temperature protection
Temperature sensors (PT1000) are embedded in the drive motor to warn the operator if the temperature
becomes too high and to shut down the compressor, thereby protecting the motor from overheating.
Motor bearing temperature protection
Temperature sensors (PT1000) are embedded in the drive motor to warn the operator if the temperature of
the bearings becomes too high and to shut down the compressor, thereby protecting the motor bearings
from overheating.
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Teflon-free compressor elements
The rotors of the compressor elements have an epoxy-based coating.
Hot air version
The cooling system does not cool the outgoing compressed air.
Automatic water shut-off
A water shut-off valve is provided in the cooling water system to shut off the system when the compressor
is not in operation.
Duplex oil filters
Duplex oil filters have a flow selector valve. When the handle of the valve is in the upright position, both
cartridges are connected in the oil circuit. When the handle is turned to the right, the left cartridge is out of
service and vice versa.
Energy recovery
The compressor is provided with an Atlas Copco energy recovery system to recover the major part of the
compression heat in the form of hot water.
SPM monitoring
A number of vibration sensors are provided on the drive motor and compressor elements. The readings can
be called up on the display of the Elektronikon regulator.
High ambient temperature (HAT)
The compressor is specially designed for continuous operation under humid and high ambient temperature
conditions. The maximum ambient temperature is 50˚C (122˚F).
Anchor pads
Steel plates, fitting in the forklift slots, and bolts are shipped loose with the compressor. With these plates
and bolts, the compressor frame can be fixed to the floor.
Pre-filter kit
Two extra compressed air inlet filters, delivered loose with the compressor, must be mounted in parallel on
the roof of the compressor. With the prefilters the interval between air filter exchange is nearly two times
longer. The two prefilters can be changed without stopping the compressor.
Anti-condensation heaters
Electric heaters are installed in the motor windings and connected to the compressor cubicle. When the
compressor is stopped, the heaters are automatically switched on. The heaters in the motor will prevent
condensation during stand-still.
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