Atlas Copco Oil-injected rotary screw compressors G 7, G 11, G 15 Instruction book
Atlas Copco Oil-injected rotary screw compressors G 7, G 11, G 15 From following serial No. onwards: CAI 933 415 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.
Instruction book Table of contents 1 Safety precautions..........................................................................................................5 1.1 SAFETY ICONS................................................................................................................................... 5 1.2 GENERAL SAFETY PRECAUTIONS............................................................................................................5 1.3 SAFETY PRECAUTIONS DURING INSTALLATION.........
Instruction book 3.10 CALLING UP RUNNING HOURS..............................................................................................................37 3.11 CALLING UP MOTOR STARTS............................................................................................................... 38 3.12 CALLING UP MODULE HOURS...............................................................................................................38 3.13 CALLING UP LOADING HOURS...............................
Instruction book 6.4 OIL, FILTER AND SEPARATOR CHANGE ................................................................................................. 62 6.5 PDX/DDX FILTER CHANGE (OPTION).................................................................................................. 64 6.6 STORAGE AFTER INSTALLATION........................................................................................................... 65 6.7 SERVICE KITS........................................................
Instruction book 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.
Instruction book 9. If compressed air is used in the food industry and more specifically for direct food contact, it is recommended, for optimal safety, to use certified Class 0 compressors in combination with appropriate filtration depending on the application. Please contact your customer centre for advice on specific filtration. 1.
Instruction book 14. In multiple compressor systems, manual valves must be installed to isolate each compressor. Nonreturn 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.
Instruction book • • • • 9. 10. 11. 12. 13. 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 If warm cooling air from compressors is used in air heating systems, e.g.
Instruction book 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.
Instruction book 2 General description 2.1 Introduction Introduction G 7, G 11 and G 15 are air-cooled, single-stage, oil-injected screw compressors, driven by an electric motor. The compressors are enclosed in sound-insulating bodywork. An easy-to-operate control panel is provided, including the start/stop switch and the emergency stop button. A cabinet housing the controller, pressure sensor and motor starter is integrated into the bodywork.
Instruction book Reference Designation ER Elektronikon Base Controller S3 Emergency stop button AO Air outlet AR Air receiver Dm1 Manual condensate drain DR Dryer D Dewpoint indicator (Only on Full Feature units) Front open view, G 15 Full-Feature tank-mounted Reference Designation Co Oil cooler OF Oil filter OS Oil separator OT Oil separator tank 2920 7191 00 11
Instruction book Rear open view, G 15 Full-Feature tank-mounted Air filter 12 2920 7191 00
Instruction book 2.2 Reference Designation Ca Air cooler (Only on Full Feature units) E Compressor element AF Air filter Air flow Pack Air flow, G 7, G 11 and G 15 Tank-mounted Pack Air drawn through filter (AF) and open inlet valve (IV) into compressor element (E) is compressed. Compressed air and oil flow into oil separator/tank (OT). The air is discharged via minimum pressure valve (Vp) towards the air outlet (AO).
Instruction book Full-Feature Air flow, G 7, G 11 and G 15 Tank-mounted Full-Feature Air drawn through filter (AF) and open inlet valve (IV) into compressor element (E) is compressed. Compressed air and oil flow into oil separator/tank (OT). The air is discharged via minimum pressure valve (Vp), air cooler (Ca) and air dryer (DR) towards the air outlet (AO).
Instruction book 2.3 Oil system Oil system, G 7, G 11 and G 15 Pack Oil system, G 7, G 11 and G 15 Full-Feature Air pressure in the oil separator tank (OT) forces the oil from the tank to compressor element (E) via oil cooler (Co) and oil filter (OF). Compressed air and oil flow into oil separator/tank (OT) where most of the oil is separated from the air by centrifugal action.
Instruction book returns to the oil circuit via a separate line. The minimum pressure valve (Vp - see section Air flow) ensures a minimal pressure in the tank, required for oil circulation under all circumstances. The oil system is fitted with a by-pass valve (BV). When the oil temperature is below the set-point of the valve, the by-pass valve shuts off the oil supply from oil cooler. The by-pass valve starts opening the supply from cooler (Co) when the oil temperature exceeds the setting of the valve.
Instruction book Cooling system, G 7, G 11 and G 15 Full-Feature The cooling system of the Full Feature version comprises oil cooler (Co), air cooler (Ca) and fan (FN). The dryer (DR) of Full-Feature versions has a separate cooling fan and an automatic condensate drain (see also section Air dryer). 2.5 Regulating system Detail view of unloader assembly (UA) The main components of the regulating system are: • Unloader (UA), including inlet valve (IV) and unloading valve (UV).
Instruction book • The BASE controller that regulates the compressor based on the pressure settings and readings of the pressure sensor. Loading As long as the working pressure is below the preset maximum, the solenoid valve is energised, allowing control air to the unloader: the inlet valve opens completely and the unloading valve closes completely. The compressor will run fully loaded (100% output).
Instruction book Control panel Control panel G 7, G11 and G 15 2.
Instruction book Electric cubicle IEC 20 2920 7191 00
Instruction book Electric cubicle UL, G7 and G11 (DOL) 2920 7191 00 21
Instruction book Electric cubicle UL, G15 (YD) 22 Reference Designation F1 Primary fuse, transformer of the control circuit F2–3 Fuses F4 Fuse F5 Fuse FM1 Motor overload relay KA Auxiliary circuit relay KD Delta contactor KL Line contactor KMD Dryer relay (Only on Full-Feature) KY Star contactor T1 Transformer X1 Terminal block of the control circuit X2 Terminal block, voltage change of the motor (Only on tri-voltage units) X5 Terminal block, voltage change of the dryer trans
Instruction book Electrical diagram 2205 0121 00 Service diagram G 7 – G 11 – G15 IEC 2205 0311 00 Service diagram G 7 – G 11 cULus/ cCSAus 2205 0311 01 Service diagram G15 cULus/ cCSAus The complete electrical diagram can be found in the electric cubicle. The complete electrical diagram can be found on the CD supplied with the machine. 2.
Instruction book 2.9 Air dryer Air Dryer Wet compressed air enters the dryer and is further cooled by the outgoing, dried air (2). Moisture in the incoming air condenses. The air then flows through heat exchanger (1) where refrigerant evaporates, withdrawing heat from the air. The cold air then flows through condensate trap (4) which separates condensate from the air. The condensate is automatically drained.
Instruction book 3 Elektronikon Base Controller 3.1 ElektronikonTM Base Controller Control panel Introduction In general, the ElektronikonTM Base Controller has following functions: • • • • Controlling the compressor; Protecting the compressor; Monitoring service intervals; Automatic restart after voltage failure (made inactive); Automatic control of the compressor The controller maintains the net pressure between programmable limits by automatically loading and unloading the compressor.
Instruction book If one of the measurements exceeds the programmed shutdown warning level, this will also be indicated to warn the operator before the shutdown level is reached. Shutdown If the compressor element outlet temperature exceeds the programmed shutdown level or the overload relay of the main motor trips, the compressor will be stopped. This will be indicated on the display of the controller.
Instruction book 3.2 Control panel Detailed description Control panel of the Elektronikon Base controller Reference Designation Function 1 Display Shows icons and operating conditions. 2 LED, Voltage on Indicates that the voltage is switched on. 3 Start/stop button Keep pressed for 3 seconds to start compressor. Press to stop compressor if running. Use this button to go to previous screen or to end the current action. 4 Scroll button Use these buttons to scroll through the menu.
Instruction book 3.3 Icons used on the display Function Icon Description Stopped/Running When the compressor is stopped, the icon stands still. When the compressor is running, the icon is rotating.
Instruction book Function Icon Description A time/delay parameter is displayed. NOTE: • x1000: ON if the displayed value is in thousands of • hrs: ON if the displayed value is in hours • s: ON if the displayed value is in sec Element outlet temperature 3.4 Main screen At power on, the first screen is a test screen (Icon, digit and led are on). The next screen is the Main screen, shown automatically.
Instruction book Screen with running compressor To stop the compressor, push start/stop button (3). The compressor unloads: Screen with unloading compressor When the unload time is elapsed, the compressor is stopped and the controller goes back to main screen: Main screen with pressure (stopped compressor) To enter the main menu (starting from the Main screen), press the enter button (7) for 3 seconds.
Instruction book First screen of main menu It is possible to scroll in the menu with the up or down buttons (4-8). To select one item push the enter button (7). To end the current action push start/stop (3) button. If the emergency stop button is pushed, the compressor stops immediately and the following screen will appear: Emergency stop When the emergency push button is restored, reset the alarm by pressing the enter button (7) for 5 seconds.
Instruction book 3.6 Shutdown warning Description A shutdown warning will appear in the event of: • A too high temperature at the outlet of the compressor element. Compressor element outlet temperature • If the outlet temperature of the compressor element exceeds the shutdown warning level (factory set at 110˚C/ 230˚F), warning LED (5) is on. • Press Scroll up or down buttons (4-8). The screen shows the temperature at the compressor element outlet.
Instruction book 3.7 Shutdown Description The compressor will shutdown: • In case the temperature at the outlet of the compressor element exceeds the shutdown level (detected by temperature sensor (TT11) or by temperature switch (TSHH11)). • In case of error of the outlet pressure sensor (PT20) or temperature sensor (TT11).
Instruction book • When the shutdown condition has been solved, press the Enter button (7) for 5 seconds. • When appears on the display, the compressor can be restarted. Motor overload In the event of motor overload: • The compressor will shutdown. • Alarm LED (5) will flash. • The following screen will appear: Main screen with shutdown indication, motor overload • Contact you dealer for fault troubleshooting • When the shutdown condition has been solved, press the enter button (7) for 5 seconds.
Instruction book If the service timer exceeds the programmed time interval, alarm LED (6) is blinking with a following screen: Blinking screen • • • • • Press Enter button (7) to enter the main menu. Select and press Enter button (7) to enter the data menu. Scroll (buttons 4-8) until and the service symbol is shown. Press enter button (7). The actual reading of the service timer is shown in .
Instruction book 3.9 Scrolling through all screens Control panel General overview of the menu structure From the Main screen press the enter button (7) for 3 seconds to enter the Menu. You will find the following items: • • • • 36 Data menu: Data counters parameters. Programming menu: Submenu of Regulation pressure, Timer, Display setting and Control setting. Test menu: Display test. Info menu: Information of firmware release.
Instruction book Overview of the screens Menu item Submenu Data Programming Digital input screen Designation Calling up running hours Calling up motor starts Calling up module hours Calling up loading hours Calling up load solenoid valve Calling up service timer Regulation Pressure Calling up modifying pressure band selection Calling up modifying pressure band settings
Instruction book The screen shows the unit used and the value <11.25>: the running hours of the compressor are 11250 hours. 3.11 Calling up motor starts Starting from the Main screen: • • • • Press Enter button (7) for 3 seconds to enter the Main menu. Select and press Enter button (7) to enter the Data menu. Scroll Up or Down buttons (4-8) until and the motor symbol is shown. Press Enter button (7): the number of motor starts is shown.
Instruction book In the example shown, the screen shows the unit used and the value <5000>: the controller module has been in service during 5000 hours. 3.13 Calling up loading hours Starting from the Main screen: • • • • Press Enter button (7) for 3 seconds to enter the Main menu. Select and press Enter button (7) to enter the Data menu. Scroll Up or Down buttons (4-8) until and the running loaded symbol is shown. Press Enter button (7): the loading time is shown.
Instruction book This screen shows the number of loading actions (x1 or - if lights up - x1000). In the above example, the number of unload to load actions is 10100. 3.15 Calling up/resetting the service timer Starting from the Main screen: • • • • Press Enter button (7) for 3 seconds to enter the Main menu. Select and press Enter button (7) to enter the Data menu. Scroll Up or Down buttons (4-8) until and is shown. Press Enter button (7): the loading time is shown.
Instruction book • Scroll Up or Down buttons (4-8) until is shown and then press Enter button (7). • Pressure band 1 () is shown. Scroll Up or Down buttons (4–8) to pressure band 2 (). • Press Enter button (7) on the desired pressure band. 3.17 Calling up/modifying pressure band settings Starting from the Main screen: • • • • • Press Enter button (7) for 3 seconds to enter the Main menu. Select and press Enter button (7) to enter the Programming menu.
Instruction book 3.19 Calling up/modifying the unit of pressure The unit of pressure measurement can only be changed when the compressor is stopped. Starting from the Main screen: • • • • • • • • Press Enter button (7) for 3 seconds to enter the Main menu. Select and press Enter button (7) to enter the Programming menu. After blinking, confirm <0> with Enter button (7). Scroll Up or Down buttons (4-8) to for display settings. Press Enter button (7) to enter the submenu.
Instruction book 3.22 Keyboard lock Keep both Up and Down buttons pressed for more than 3 seconds to lock or unlock the keyboard. • The display will show the label blinking for 3 seconds if the keyboard has been locked. • The display will show the label blinking for 3 seconds if the keyboard has been unlocked. Example Lock/unlock screen.
Instruction book 4 Installation 4.1 Installation proposal Outdoor/altitude operation If the compressor is installed outdoors or if the ambient temperature can be below 0˚C (32˚F), precautions must be taken. In this case, and also if operating at high altitude, consult Atlas Copco. Moving/lifting Transport by a pallet truck For transport with a fork truck, use the openings in the frame. Move the compressor gently.
Instruction book Installation proposal Installation proposal, G 7, G 11 and G 15 Ref. Action 1 Install the compressor on a solid, level floor suitable for taking its weight. The recommended minimum distance between the top of the unit and the ceiling is 900 mm (35.1 in). The air receiver must not be bolted to the floor. For tank-mounted units, the minimum distance between the wall and the back of the compressor is 300 mm (19.5 in). 2 Position of the compressed air outlet valve. Close the valve.
Instruction book 4.2 Ref. Action 4 Ventilation: the inlet grids and ventilation fan should be installed in such a way that any recirculation of cooling air to the compressor or dryer is avoided. The air velocity to the grids must be limited to 5 m/s (200 in/s). The required ventilation capacity to limit the temperature of the compressor room can be calculated from the following formula: Qv = 0.
Instruction book 4.3 Text on drawings Translation or explanation Dryer outlet cooling air Dryer outlet cooling air Electrical connections Always disconnect the power supply before working on the electrical circuit! General instructions Step Action 1 Install an isolating switch near the compressor. 2 Check the fuses and the setting of overload relay. See Settings for overload relay and fuses. 3 If fitted, check transformers for correct connection.
Instruction book Modifications to the compressor cubicle: Step Action 1 Adjust the motor overload (FM1) setting. 2 Control transformer (T1) – Move the primary connection from 230V to the desired voltage. 3 Replace the control fuses (F1) 10.3 x 38mm with the ones provided (see further). Use 1A fuses for 460V or 2A for 208V On FF units, replace the power fuses (F4) with the CC type provided. Use 6A for 460V, and 15A for 208V. 4 Modify the motor terminal bridge configuration in the cubicle (X2).
Instruction book Fuses fuse rating (V) 208 V 230 V 460 V Class F1 600 V AC 2A 2A 1A UL class JDYX or JDYX2 10.3 x 38mm F4 (1) 2 fuses 600 V AC 15 A 15 A 6A UL guide JDDZ class CC type FNQ-R 10.3 x 38 mm (1): Fuse F4 only applicable to FF units. See also Electrical system for the service diagrams. Motor terminal bridge configuration: Factory standard connection is 230 V and can be changed to 208 V or 460 V. Terminal bridges (1) can be removed using a pair of pliers.
Instruction book 4.4 50 Pictographs Ref. Description 1 Working pressure 2 Hour meter 3 Dew point temperature 4 Start 5 Stop 6 Warning: voltage 7 Lightly oil gasket of oil filter, screw filter on and tighten by hand 9 Warning: switch off voltage and depressurise compressor before carrying out maintenance work 10 Warning: hot parts 11 With all bodywork panels in place, push the start button.
Instruction book 5 Operating instructions 5.1 Initial start-up Safety The operator must apply all relevant Safety precautions.
Instruction book Condensate drain valve on air receiver Step Action 1 Consult the installation instructions (see Installation). 2 Check that the electrical connections correspond to the local codes. The installation must be earthed and protected against short circuits by fuses in all phases. An isolating switch must be installed near the compressor. 3 Fit outlet valve (2), close it and connect the air net to the valve.
Instruction book Start-up Label on the top Step Action 1 Affix sheet (5) explaining the procedure for checking the motor rotation direction to the cooling air outlet of the compressor (consult Dimension drawings). Switch on the voltage. Start the compressor and stop it immediately. Check the rotation direction of the motor using sheet (5). If the motor rotation direction is correct, the label on the top grating will be blown upwards.
Instruction book 5.
Instruction book Position of oil sight glass and filler plug Control panel Step Action 1 Before starting, the oil level sight glass (SG) should be between 1/4 and 3/4 full. 2 Switch on the voltage. 3 Open air outlet valve (2). 4 Push the start button (6). The motor starts running after 25 seconds. On compressors with a star-delta starter, the drive motor switches over from star to delta 10 seconds after starting. The maximum number of motor starts must be limited to 20 per hour.
Instruction book 5.3 Step Action 5 Regularly check the oil level. 10 to 15 minutes after stopping, the sight glass (SG) should be between 1/4 and 3/4 full. If the oil level is too low, stop the compressor, depressurise the oil system by unscrewing oil filler plug (FC) one turn and wait a few minutes. Remove the plug and top up the oil, until the sight glass is 3/4 full. Do not overfill. Fit and tighten plug (FC). 6 In automatic operation, the regulator is automatically controlling the compressor, i.
Instruction book Control panel Step Action 1 Push the start/stop button (6) on the controller. The compressor will unload. When the unload time is elapsed, the compressor is stopped and the controller goes back to the main screen. To stop the compressor immediately in the event of an emergency, press button (S3). See section Control panel. After remedying the fault, unlock the button by pulling it out. Only use emergency stop button in the event of an emergency.
Instruction book 5.
Instruction book This procedure should be carried out at the end of the compressor’s service life. Step Action 1 Stop the compressor and close the air outlet valve (2). 2 Switch off the voltage and disconnect the compressor from the mains. 3 Depressurise the compressor by opening plug (3) one turn. Open condensate drain valve (Dm). Open condensate drain valve (4) of the air receiver. 4 Shut off and depressurise the part of the air net which is connected to the outlet valve.
Instruction book 6 Maintenance 6.1 Preventive maintenance schedule Warning Before carrying out any maintenance, repair work or adjustments, proceed as follows: • Stop the compressor. • Switch off the voltage and open the isolating switch. • Close the air outlet valve and open the manual condensate drain valves. • Depressurise the compressor. For detailed instructions, see the next sections. The operator must apply all relevant Safety precautions. Warranty-Product Liability Use only authorised parts.
Instruction book Period (1) Running hours (1) Operation “ 4000 (2) Replace the air filter. “ 4000 (2) Replace the oil separator. “ 4000 For compressors with PDX filter, replace the filter. “ 4000 Check and, if needed, replace the belts. “ -- Have the safety valve tested. “ “ Have the operation of sensors, electrical interlockings and components checked. “ “ Have the temperature shut-down switch tested. “ -- Inspect the air receiver.
Instruction book 6.3 Oil specifications Never mix oils of different brands or types as they may not be compatible and the oil mix will have inferior properties. A label, indicating the type of oil filled ex-factory, is stuck on the air receiver/oil tank. It is strongly recommended to use Atlas Copco lubricants. See section Preventive maintenance schedule for recommended oil change intervals. For part numbers, consult the Spare Parts List.
Instruction book Location of oil filter and separator Step Action 1 Run the compressor until warm. Stop the compressor, close the air outlet valve and switch off the voltage. See Stopping. 2 Depressurise the compressor by unscrewing filler plug (2) one turn to permit any pressure in the system to escape. Remove the plug after the system is depressurised. 3 Depressurise the air receiver by opening drain valve (8). 4 Remove plug (5), drain the oil by opening drain valve (6).
Instruction book 6.5 PDX/DDX filter change (option) Oil filler plug Drain valve, air receiver 64 Step Action 1 Stop the compressor, close the air outlet valve, switch off the voltage and depressurise by unscrewing oil filler plug (3) one turn to permit any pressure in the system to escape. See section Stopping.. On floor-mouned units, depressurise the filter by opening its drain valve.
Instruction book 6.6 Step Action 6 Refit the filter bowl. 7 Tighten oil filler plug (3). 8 Close condensate drain valve (4). Storage after installation If the compressor is stored without running from time to time, consult Atlas Copco as protective measures may be necessary. 6.7 Service kits Service kits For overhauling and for preventive maintenance, a wide range of service kits is available.
Instruction book 7 Adjustments and servicing procedures 7.1 Air filter Changing the air filter Air filter Procedure: 66 Step Action 1 Stop the compressor, close the air outlet valve and switch off the voltage. 2 Remove the front panel and the top panel of the compressor housing. 3 Unscrew the filter cover (AF) and remove the filter element. Discard the air filter element. 4 Fit the new element and screw on the filter cover. 5 Refit the top and front panels.
Instruction book 7.2 7.3 Coolers Step Action 1 Keep oil cooler (Co) clean to maintain the cooling efficiency. For versions with air cooler: also keep cooler (Ca) clean to maintain the cooling efficiency. 2 Stop the compressor, close the air outlet valve and switch off the voltage. Remove any dirt from the oil cooler (Co) with a fibre brush. For versions with air cooler: also remove any dirt from the air cooler (Ca). Never use a wire brush or metal objects. Then clean using an air jet.
Instruction book Oil filler plug Testing The valve can be tested on a separate compressed air line. Before removing the safety valve, stop the compressor (see section Stopping), close the air outlet valve, switch off the voltage, open drain valves (4) (tank-mounted units) and the manual drain valve (5) (if fitted on floor-mounted units) and unscrew filler plug (3) one turn to permit any pressure in the system to escape.
Instruction book 7.4 Belt set exchange and tensioning Read the warning in the Preventive maintenance schedule section. Checking the belt tension on G7, G11 and G15 Step Action 1 Stop the compressor, close the air outlet valve and switch off the voltage 2 Remove the front door and the internal panel. 3 The force and deflection varies with the power of the unit, and with the total running hours of the belt.
Instruction book Adjusting the tension of the drive belts for G7, G11 and G15 Step Action 1 Stop the compressor, close the air outlet valve and switch off the voltage. 2 Remove the front door, the internal panel, the top cover and the pulley protection. 3 Loosen the 4 bolts (2) by one turn. 4 Adjust the belt tension by turning tensioning nut (1). 5 The force and deflection varies with the power of the unit, and with the total running hours of the belt.
Instruction book Step Action 1 Stop the compressor, close the air outlet valve and switch off the voltage. 2 Remove the front door, the internal panel, the top cover, the pulley protection and the left side panel. 3 Loosen the 4 bolts (2) by one turn. 4 Release the belt tension by loosening tensioning nut (1). 5 Remove the fan duct (4). Remove the belts. 6 Install the new belts. 7 Tension belts (3) as described above.
Instruction book 8 Problem solving Control panel Air outlet valve 72 2920 7191 00
Instruction book Oil filler plug Drain valve, air receiver 2920 7191 00 73
Instruction book Attention Use only authorised parts. Any damage or malfunction caused by the use of unauthorised parts is not covered by Warranty or Product Liability. Apply all relevant Safety precautions during maintenance or repair. Before carrying out any maintenance or repair work on the compressor: push the stop button (6). Wait until the compressor has stopped and switch off the voltage. See the Stopping section. Open the isolating switch to prevent an accidental start.
Instruction book 3 2920 7191 00 Condition Fault Remedy Air outlet temperature above normal Insufficient cooling air or cooling air temperature too high Check for cooling air restriction or improve ventilation of compressor room. Avoid recirculation of cooling air.
Instruction book 9 Technical data 9.1 Electric cable size Attention The voltage on the compressor terminals must not deviate more than 10% from the nominal voltage. It is however highly recommended to keep the voltage drop over the supply cables at nominal current below 5% of the nominal voltage (IEC 60204-1). If cables are grouped together with other power cables, it may be necessary to use cables of a larger size than those calculated for the standard operating conditions.
Instruction book Frequency Voltage (V) G7 (Hz) 9.3 G11 G15 60 380 12 20A 15,5 32A 18,5 32A 60 460 10 20A 13,5 32A 15 32A CSA/UL DOL Over Load relay FM1 (A) Main fuses (A) (class J or RK) + Disc. Switch size >=1,25 x FLA, see conn. Diagram. Over Load relay FM1 (A) Main fuses (A) (class J or RK) + Disc. Switch size >=1,25 x FLA, see conn. Diagram. Over Load relay FM1 (A) Main fuses (A) (class J or RK) + Disc. Switch size >=1,25 x FLA, see conn. Diagram.
Instruction book 9.4 Minimum working pressure psig 58 Minimum ambient temperature ˚C 0 Minimum ambient temperature ˚F 32 Compressor data G 7 (under reference conditions) Compressor type G7 Frequency Hz 50 60 Maximum (unloading) pressure, Pack bar(e) 7.5 10 13 7.4 9.1 10.8 12.5 Maximum (unloading) pressure, Pack psig 109 145 189 107 132 157 181 Maximum (unloading) pressure, Full-Feature bar(e) 7.25 9.75 12.75 7.15 8.85 10.55 12.
Instruction book G 11 (under reference conditions) Compressor type G 11 Frequency Hz 50 60 Maximum (unloading) pressure, Pack bar(e) 7.5 10 13 7.4 9.1 10.8 12.5 Maximum (unloading) pressure, Pack psig 109 145 189 107 132 157 181 Maximum (unloading) pressure, Full-Feature bar(e) 7.25 9.75 12.75 7.15 8.85 10.55 12.25 Maximum (unloading) pressure, Full-Feature psig 105 141 185 103.7 128 153 178 Nominal working pressure bar(e) 7 9.5 12.5 6.9 8.6 10.
Instruction book Compressor type G 15 Maximum (unloading) pressure, Full-Feature bar(e) 7.25 9.75 12.75 7.15 8.85 10.55 12.25 Maximum (unloading) pressure, Full-Feature psig 105 141 185 103.7 128 153 178 Nominal working pressure bar(e) 7 9.5 12.5 6.9 8.6 10.3 12 Nominal working pressure psig 102 138 181 100 125 149 174 Set-point, thermostatic valve ˚C 75 Set-point, thermostatic valve ˚F 167 Temperature of air leaving outlet valve (approx.
Instruction book 10 Instructions for use Oil separator vessel 1 The vessel can contain pressurised air. This can be potentially dangerous if the equipment is misused. 2 This vessel must only be used as a compressed air/oil separator tank and must be operated within the limits specified on the data plate. 3 No alterations must be made to this vessel by welding, drilling or other mechanical methods without the written permission of the manufacturer.
Instruction book 11 Guidelines for inspection Guidelines On the Declaration of Conformity / Declaration by the Manufacturer, the harmonised and/or other standards that have been used for the design are shown and/or referred to. The Declaration of Conformity / Declaration by the Manufacturer is part of the documentation that is supplied with this compressor.
Instruction book 12 Pressure equipment directives Components subject to 97/23/EC Pressure Equipment Directive Components subject to 97/23/EC Pressure Equipment Directive greater than or equal to category II: safety valves. See the spare parts book for part numbers. Overall rating The compressors conform to PED smaller than category II.
Instruction book 13 Declaration of conformity Typical example of a Declaration of Conformity document (1): Contact address: Atlas Copco Airpower n.v. P.O.
Instruction book On the Declaration of Conformity / Declaration by the Manufacturer, the harmonized and/or other standards that have been used for the design are shown and/or referred to. The Declaration of Conformity / Declaration by the Manufacturer is part of the documentation that is supplied with this device.
In order to be First in Mind—First in Choice® for all your quality compressed air needs, Atlas Copco delivers the products and services that help to increase your business’ efficiency and profitability. No. 2920 7191 00 / 2016 - 08 - Printed in Belgium Atlas Copco's pursuit of innovation never ceases, driven by our need for reliability and efficiency. Always working with you, we are committed to providing you the customized quality air solution that is the driving force behind your business. www.
