Atlas Copco SF 15+ Instruction Book
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Atlas Copco SF 15+ Instruction Book

Oil-free scroll compressors
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INSTRUCTION BOOK
OIL-FREE SCROLL COMPRESSORS
SF 15+, SF 17+, SF 22+, SFD 11+, SFD 15+, SFD 22+

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  • Page 1 INSTRUCTION BOOK OIL-FREE SCROLL COMPRESSORS SF 15+, SF 17+, SF 22+, SFD 11+, SFD 15+, SFD 22+...
  • Page 3 Atlas Copco Oil-free scroll compressors SF 15+, SF 17+, SF 22+, SFD 11+, SFD 15+, SFD 22+ From following serial No. onwards: API 770 000 Instruction book Original instructions COPYRIGHT NOTICE Any unauthorized use or copying of the contents or any part thereof is prohibited.

  • Page 4: Table Of Contents

    Instruction book Table of contents Safety precautions......................5 ........................... 5 AFETY ICONS ......................5 AFETY PRECAUTIONS GENERAL ................... 6 AFETY PRECAUTIONS DURING INSTALLATION ....................7 AFETY PRECAUTIONS DURING OPERATION ................8 AFETY PRECAUTIONS DURING MAINTENANCE OR REPAIR General description...................... 10 ........................10 ENERAL DESCRIPTION ..........................14 LOW DIAGRAM...
  • Page 5 Instruction book 3.12 ..........................45 ERVICE MENU 3.13 ..........................49 ETPOINT MENU 3.14 ........................51 VENT HISTORY MENU 3.15 ........................52 ENERAL SETTINGS MENU 3.16 ............................54 NFO MENU 3.17 ...........................54 EEK TIMER MENU 3.18 ............................. 62 EST MENU 3.19 ........................63 SER PASSWORD MENU 3.20 ..........................
  • Page 6 Instruction book Adjustments and servicing procedures..............88 ............................88 IR FILTER ............................ 88 IR COOLER ..........................88 RIVE MOTOR ..........................89 AFETY VALVE ....................89 ELT SET EXCHANGE AND TENSIONING ....................90 LEANING THE COMPRESSOR ELEMENT .....................91 EPLACEMENT OF THE OUTLET PIPE ........................92 RYER MAINTENANCE Problem solving......................94 Technical data.......................96 ......................96...

  • Page 7: Safety Precautions

    Instruction book Safety precautions Safety icons Explanation Danger to life Warning Important note Safety precautions, general General 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.

  • Page 8: Safety Precautions During Installation

    Instruction book 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.

  • Page 9: Safety Precautions During Operation

    Instruction book 13. 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. 14. 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.

  • Page 10: Safety Precautions During Maintenance Or Repair

    Instruction book • There are no leaks • 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 9.
  • Page 11 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 any oil system. Oil tanks must be completely purged, e.g.

  • Page 12: General Description

    Instruction book General description General description Introduction SF 15 , SF 17 and SF 22 are stationary, oil free compressors. Dependent on the model, the compressors have 3 or 4 electric motor driven compressor modules, enclosed in a sound insulating canopy. The front door panel houses the Elektronikon Graphic controller and the emergency stop button.
  • Page 13 Instruction book SF 22 FF, rear view Compressor module Refrigerant dryer Air cooler Compressed air outlet valve SFD 22 , front view Elektronikon Graphic controller Emergency stop button Electric cabinet Compressor element operating principle Each compressor element consists of a fixed scroll shaped housing and a scroll shaped rotor. Air enters the compressor element through inlet opening (1).
  • Page 14 Instruction book Compressor element, typical Air inlet Air outlet Fixed scroll Orbiting scroll Compressor module The SF 15 has four 3.7 kW modules, while the SF 17 and the SF 22 respectively have three or four 5.5 kW modules. The SFD 15 has four 3.7 kW modules, while the SFD 11 and the SFD 22 respectively have...
  • Page 15 Instruction book Air filter Compressor element air outlet Motor Safety valve Compressor element Temperature sensor 2920 7140 52...

  • Page 16: Flow Diagram

    Instruction book Flow diagram Flow diagram of SF 15 , SF 17 , SF 22 2920 7140 52...
  • Page 17 Instruction book Text on image Compressor module 1 (10) Compressor module 2 (11) Drain Compressor module 3 (12) Mechanical link Compressor module 4 (13) Electrical signal To cubicle (14) Electric energy Refrigerant dryer (units with dryer) (15) Enclosure Water separator (units without dryer) (16) Local mounting Outlet...
  • Page 18 Instruction book Flow diagram of SFD 11 , SFD 15 , SFD 22 2920 7140 52...
  • Page 19 Instruction book Text on image Compressor module 1 Drain Compressor module 2 (10) Mechanical link Compressor module 3 (11) Electrical signal Compressor module 4 (12) Electric energy To cubicle (13) Enclosure Outlet (14) Local mounting Ambient temperature sensor (15) On control cabinet Air flow Air is drawn through air filter (100) and is compressed by the compressor element (102) of each compressor module.

  • Page 20: Regulating System

    Instruction book Condensate drain connections (typical) Condensate drain connections on SFD Automatic condensate drain outlet Manual condensate drain valve Ambient temperature sensor Regulating system The compressor is provided with an Elektronikon® controller module. The controller performs following functions: • Monitoring the pressure •...

  • Page 21: Electrical System

    Instruction book Electrical system Cubicle layout Electrical cabinet SF 15 , SF 17 and SF 22 , typical Electrical cabinet SFD 11 , SFD 15 and SFD 22 , typical K21, K22,... Contactor 1X0, 4X3,... Terminals Q21,Q22,... Circuit breaker T1, T4,... Transformer F1,F2,...

  • Page 22: Electric Diagram

    Instruction book Electric diagram • The electrical installation must correspond to the applicable codes. • The mains supply and earthing lines must be of suitable size. See section Electric cable size and fuses. • The installation must be earthed and protected by fuses in each phase. •...
  • Page 23 Instruction book Each compressor element is protected by a PT 1000 sensor (6) in the outlet pipe. The sensor is connected to the electronic regulator. When the maximum temperature is exceeded, the compressor element is stopped during 2 minutes before it can restart. If this happens 2 times within a time span of 2 hours, the element will be stopped during 10 minutes.

  • Page 24: Air Dryer

    Instruction book Air dryer Flow diagram Compressed air circuit Compressed air enters heat exchanger (1) and is cooled by the outgoing, cold, dried air. Water in the incoming air starts to condense. The air then flows through heat exchanger/evaporator (2) where the refrigerant evaporates, causing the air to be cooled further to close to the evaporating temperature of the refrigerant.
  • Page 25 Instruction book Automatic drain The dryers are equipped with an electronic condensate drain (EWD). The condensate from the condensate trap accumulates in a collector. When the condensate reaches a certain level, it is discharged through the drain outlet (1). The condensate can also be drained by pressing the test button (2). The drain filter can be cleaned by opening the manual drain valve (3), see section Preventive maintenance schedule.

  • Page 26: Controller

    Instruction book Controller General Control panel ® Elektronikon Graphic controller Introduction The controller has following functions: • Controlling the compressor • Protecting the compressor • Monitoring components subject to service • Automatic restart after voltage failure (made inactive) Automatic control of the compressor operation The controller maintains the net pressure between programmable limits by automatically starting and stopping one or more compressor modules.
  • Page 27 For compressors leaving the factory, this function is made inactive. If desired, the function can be activated. Consult the Atlas Copco Customer Centre if a change is considered (password protected function). If the function is activated and provided the regulator was in the automatic operation mode, the compressor will automatically restart if the supply voltage to the module is restored within the programmed time interval.

  • Page 28: Control Panel

    Instruction book Control panel Control panel Parts and functions Reference Designation Function Display Shows the compressor operating condition and a number of icons to navigate through the menu. Pictograph Automatic operation Pictograph General alarm Alarm LED Flashes in case of a shutdown, is lit in case of a warning condition.

  • Page 29: Icons Used

    Instruction book Icons used Status icons Name Icon Description Stopped / Running When the compressor is stopped, the icon stands still. When the compressor is running, the icon is rotating. Compressor status Motor stopped Motor running Machine control mode Local start / stop Remote start / stop Network control Automatic restart after voltage...
  • Page 30 Instruction book Name Icon Description Service Service required Main screen display Value lines display icon Chart display icon General icons No communication / network problem Not valid Input icons Icon Description Pressure Temperature Digital input Special protection System icons Icon Description Compressor element (LP, HP, ...) Dryer...
  • Page 31 Instruction book Icon Description Filter Motor Failure expansion module Network problem General alarm The compressor module is running and can be stopped The compressor module is stopped and is ready to start The compressor module is awaiting the minimum stop time to expire Menu icons Icon Description...

  • Page 32: Main Screen

    Instruction book Icon Description Service Event history (saved data) Access key / User password Network Setpoint Info Navigation arrows Icon Description Down Main screen Control panel Scroll keys Enter key Escape key 2920 7140 52...
  • Page 33 Instruction book Function The Main screen is the screen that is shown automatically when the voltage is switched on and one of the keys is pushed. It is switched off automatically after a few minutes when no keys are pushed. Typically, 6 different main screen views can be chosen: 1.
  • Page 34 Instruction book Text on image Compressor Outlet Element 2 Outlet Off, Shutdown,... (text varies upon the compressors actual condition Menu Element 1 Outlet Ambient Air • Section A shows information regarding the compressor operation (e.g. the outlet pressure, the ambient temperature or the temperature at one of the compressor element outlets). •...
  • Page 35 Instruction book When Chart (High Resolution) is selected, the chart shows the variation of the selected input (in this case the pressure) per minute. Also the instantaneous value is displayed. The screen shows the last 4 minutes. The switch button (icon) for selecting other screens is changed into a small Chart and is highlighted (active).

  • Page 36: Calling Up Menus

    Instruction book Selection of a main screen view To change between the different screen layouts, select the far right icon in the control icons line (see value lines display icon or chart display icon in section Icons used) and press the Enter key. A screen similar to the one below opens: Select the layout required and press the Enter key.

  • Page 37: Shutdown Warning

    Instruction book Typical Main screen (2 value lines) • To go to the Menu screen, select action button Menu (1) by means of the Scroll keys and press the Enter key. Following screen appears: Text on image Menu Regulation • The menu screen shows a number of icons. Each icon indicates a menu item. By default, the Regulation icon is selected.
  • Page 38 Instruction book As long as the element is stopped, an hourglass icon (1) replaces the element concerned in the main screen: Element 2 is stopped during a Minimum Stop Time due to a high element temperature If the element temperature exceeds the factory set shutdown warning repeatedly, the element will shut down, alarm LED (4) (see section Control panel) will lit and following screen will appear:...
  • Page 39 Instruction book Text on image Element(s) Problem Element Warning Element 2 More Triggered Reset Each time an element is reset manually, this will be logged in the Element Problem Reset counter: Counter screen where one element was reset manually Text on image Information Element Warnings Trigger level...
  • Page 40 Instruction book If this warning is triggered, the description of this warning can be found in the protection menu. Following screen is shown: Description of high ambient alarm in the protection menu Text on image General Shutd. Warn. Ambient air Shutdown High temperature warning Dew point temperature...

  • Page 41: Shutdown

    Instruction book Shutdown Description The compressor will shut down in case of: • Too high ambient temperature • Motor overload • Outlet pressure sensor error High ambient temperature If the ambient temperature is above the factory set shutdown temperature (45 °C - 113 °F), the compressor will be stopped and a stop icon will be shown on the main screen of the controller: Main screen - shutdown by too high ambient temperature Text on image...
  • Page 42 Instruction book Procedure Starting from the Main screen, • Move the cursor to the action button Menu and press the Enter key. Following screen appears: Text on image Menu Regulation • Using the Scroll keys, move the cursor to the Inputs icon (see above, section Menu icon). •...
  • Page 43 Instruction book The first item in the list is highlighted. In this example, the Net Pressure is selected (chart icon). To change, press the Enter button again. A pop up window opens: Press Enter again to remove this input from the chart. Another confirmation pop up opens: Select Yes to remove or No to quit the current action.

  • Page 44: Outputs Menu

    Instruction book Text on image Set As Main Chart Signal Outputs menu Menu icon, Outputs Function To call up information regarding the actual status of some outputs such as the condition of the Fan motor overload contact, the general warning contact, etc. Procedure Starting from the Main...

  • Page 45: Counters

    Instruction book Text on image General General warning General shutdown Cabinet fan Fan motor • The screen shows a list of all outputs with their corresponding icons and readings. If an output is in warning or shutdown, the original icon is replaced by the warning or shutdown icon respectively.

  • Page 46: Control Mode Selection

    Instruction book Text on image Counters Fan starts Shutdowns element 2 Module hours Load relay The screen shows a list of all counters with their actual readings. 3.11 Control mode selection Function To select the control mode, i.e. whether the compressor is in local control, remote control or controlled via a local area network (LAN).

  • Page 47: Service Menu

    Instruction book • There are 3 possibilities: • Local control (1) • Remote control (2) • LAN control (3) After selecting the required control mode, press the Enter key on the controller to confirm your selection. The new control mode selection is now visible on the main screen. 3.12 Service menu Menu icon, Service Function...
  • Page 48 Instruction book Procedure Starting from the Main screen, • Move the cursor to the action button Menu and press the Enter key. Following screen appears: Text on image Menu Regulation • Using the Scroll keys, move the cursor to the Service icon (see above, section Menu icon). •...
  • Page 49 Instruction book Overview Text on image Overview Real Time (hours) Running Hours Reset Example for service level (A): The figures at the left are the programmed service intervals. For Service interval A, the programmed number of running hours is 2500 hours (upper row) and the programmed number of real time hours is 8760 hours, which corresponds to one year (second row).
  • Page 50 Instruction book Text on image Service plan Real time hours Level Modify Running hours Modifying a service plan Dependant on the operating conditions, it can be necessary to modify the service intervals. To do so, use the Scroll keys to select the value to be modified. A screen similar to the one below appears: Press the Enter key.

  • Page 51: Setpoint Menu

    Instruction book Next Service Text on image Next service Running hours Level Actual In the example above, the A Service level is programmed at 500 running hours, of which 0 hours have passed. History The History screen shows a list of all service actions done in the past, sorted by date. The date at the top is the most recent service action.
  • Page 52 Instruction book Text on image Menu Regulation • Using the Scroll keys, move the cursor to the Setpoint icon (see above, section Menu icon) • Press the Enter key. Following screen appears: Text on image Regulation Pressure band 2 High Pressure band 1 High Pressure band 2 Low Pressure band 1 Low...

  • Page 53: Event History Menu

    Instruction book Text on image Regulation Stopping pressure • The upper and lower limit of the setting is shown in grey, the actual setting is shown in black. Use the ↑ or ↓ key of the Scroll keys to modify the settings as required and press the Enter key to accept.

  • Page 54: General Settings Menu

    Instruction book Example of Event History screen • Scroll through the items to select the desired shutdown or emergency stop event. • Press the Enter key to find the date, time and other data reflecting the status of the compressor when that shutdown or emergency stop occurred. 3.15 General settings menu Menu icon, Settings Function...
  • Page 55 Instruction book This screen shows again a number of icons. By default, the User Password icon is selected. The status bar shows the description that corresponds with the selected icon. Each icon covers one or more items , such as •...

  • Page 56: Info Menu

    Instruction book 3.16 Info menu Menu icon, Info Function Shows the Atlas Copco internet address. Procedure Starting from the Main screen, • Move the cursor to the action button Menu and press the Enter key. Following screen appears: Text on image...
  • Page 57 Instruction book Important remark: You can select different timers on one day.(up to 8 actions). It is however not possible to program 2 actions at the same time. The solution: leave at least 1 minute in between 2 actions. Example: Start Compressor: 5.00 AM, Pressure Setpoint 2: 5.01 AM (or later). Procedure Starting from the Main...
  • Page 58 Instruction book Text on image Week Action Schemes Week Action Scheme 3 Week Action Scheme 1 Week Action Scheme 4 Week Action Scheme 2 • A weekly list is shown. Monday is automatically selected and highlighted in red. Press the Enter key on the controller to set an action for this day.
  • Page 59 Instruction book Text on image Monday Modify • A new popup window opens. Select an action from this list by using the Scroll keys on the controller. When ready press the Enter key to confirm. Text on image Monday Stop Actions Pressure Setpoint 1 Remove...
  • Page 60 Instruction book • A new pop up window opens. Use the ↑ or ↓ key of Scroll keys to modify the values of the hours. Use the ← or → Scroll keys to go to the minutes. Text on image Monday Save Time...
  • Page 61 Instruction book Text on image Monday Are you sure? Save Modify Press the Escape key to leave this window. • The action is shown below the day the action is planned. Text on image Week Action Scheme 1 Thursday Monday - Start Friday Tuesday Saturday...
  • Page 62 Instruction book Text on image Week Cycle Week 3 Week 1 Week 4 Week 2 Modify Press the Enter key twice to modify the first week. • A new window opens. Select the action, example: Week Action Scheme 1 Text on image Week Cycle Week Action Scheme 2 Week 1...
  • Page 63 Instruction book Text on image Week Timer Status Week Action Schemes Week Timer Inactive Week Cycle Remaining Running Time • A new window opens. Select Week 1 to set the Week Timer active. Text on image Week Timer Week Timer Inactive Week Week 1 •...

  • Page 64: Test Menu

    Instruction book • This timer is used when the week timer is set and for certain reasons the compressor must continue working, for example, 1 hour, it can be set in this screen. This timer is prior to the Week Timer action. Text on image Week Timer Remaining Running Time...

  • Page 65: User Password Menu

    Instruction book • Move the cursor to the action button Menu and press the Enter key (2). Following screen appears: • Using the scroll keys, move the cursor to the test icon (see above) • Press the Enter key, following screen appears: Text on image Test Not allowed...

  • Page 66: Web Server

    If both the web server functionality and SMARTBOX are required, please contact your local Atlas Copco Customer Centre for support. Make sure you are logged in as administrator. • Use the internal network card from your computer or a USB to LAN adapter (see picture below).
  • Page 67 Instruction book USB to LAN adapter • Use a UTP cable (CAT 5e) to connect to the controller (see picture below). Configuration of the network card (in Windows) • Go to My Network places (1). • Click on View Network connections (1). 2920 7140 52...
  • Page 68 Instruction book • Select the Local Area connection (1), which is connected to the controller. • Click with the right button and select properties (1). • Use the check box Internet Protocol (TCP/IP) (1) (see picture). To avoid conflicts, uncheck other properties if they are checked.
  • Page 69 Instruction book • Use the following settings: • IP Address 192.168.100.200 • Subnetmask 255.255.255.0 Click OK and close network connections. Configuration of the web server Configure the web interface (for Internet Explorer) • Open Internet Explorer and click on Tools - Internet options (2). •...
  • Page 70 Instruction book • In the Proxy server Group box, click on the Advanced button (1). • In the Exceptions Group box, enter the IP address of your controller. Multiple IP addresses can be given but they must be separated with semicolons (;). Example: Suppose that you already added two IP addresses (192.168.100.1 and 192.168.100.2).
  • Page 71 Instruction book Click OK (2) to close the window. Viewing the controller data All screen shots are indicative. The number of displayed fields depends on the selected options. • Open your browser and type the IP address of the controller you want to view in your browser (in this example http://192.168.100.100).
  • Page 72 Instruction book Screen shot (typical) Navigation and options • The banner shows the compressor type and the language selector. In this example, three languages are available on the controller. Compressor settings All compressor settings can be displayed or hidden. Put a check mark in front of each point of interest and it will be displayed.
  • Page 73 Instruction book Counters Lists all current counter values from controller and compressor. Info status Machine status is always shown on the web interface. Digital inputs Lists all Digital inputs and their status. 2920 7140 52...
  • Page 74 Instruction book Digital outputs Lists all Digital outputs and their status. Special protections Lists all special protections of the compressor. Service plan Displays all levels of the service plan and their status. This screen shot underneath only shows the running hours. It is also possible to show the current status of the service interval. 2920 7140 52...

  • Page 75: Programmable Settings

    Instruction book 3.21 Programmable settings Compressors without built-in refrigeration dryer Minimum Factory Maximum setting setting setting Starting pressure Starting pressure (8 bar compressors) bar(e) Starting pressure (8 bar compressors) psig 101.5 Starting pressure (10 bar compressors) bar(e) Starting pressure (10 bar compressors) psig 130.5 Minimum...
  • Page 76 The built-in service timers will give a Service warning message after their respective pre- programmed time interval has elapsed. Also see section Preventive maintenance schedule. Consult Atlas Copco if a timer setting has to be changed. The intervals must not exceed the nominal intervals and must coincide logically. See section Service menu.
  • Page 77 Instruction book Terminology Term Explanation ARAVF Automatic Restart After Voltage Failure. See section General. Power recovery Is the period within which the voltage must be restored to have an automatic restart. Is time accessible if the automatic restart is activated. To activate the automatic restart function, consult your supplier.

  • Page 78: Installation Guidelines

    Outdoor/altitude operation If the compressor is installed outdoors or if the air inlet 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. 2920 7140 52...
  • Page 79 Instruction book Installation proposal Reference Description Minimum free area to be reserved for the compressor installation Ventilation proposals Procedure 1. Install the compressor on a level floor, suitable for taking the weight of the compressor in a frost free and preferably low dust location. 2.

  • Page 80: Electrical Connections

    Instruction book = Free air delivery of the compressor in l/s 4. Ventilation: The inlet grid(s) and ventilation fan should be installed in such a way that any recirculation of hot cooling air to the inlet gratings of the compressor/dryer is avoided. The air velocity to the grid(s) has to be limited to 5 m/s (16.5 ft/s).
  • Page 81 Instruction book Connect the supply cable to terminals L1, L2 and L3 of terminal strip (1X0), connect the neutral conductor to terminal (N) (if applicable) and the earthing conductor to the earthing bolt (1X3). 2920 7140 52...

  • Page 82: Pictographs

    Instruction book Pictographs Pictographs Pictographs Reference Designation Automatic condensate drain Warning: before connecting compressor electrically, consult Instruction book for motor rotation direction Consult the specific instructions before greasing Manual condensate drain Torques for steel (Fe) or brass (CuZn) bolts Switch off the voltage and depressurize the compressor before maintenance or repair Warning: voltage Warning: hot surface Rotation direction of fan...

  • Page 83: Operating Instructions

    Instruction book Operating instructions Initial start-up Safety The operator must apply all relevant Safety precautions. Initial start-up procedure 1. Remove the red painted transport brackets (2). 2. Check the settings of the overload relays. See section Electric cable size and fuses.

  • Page 84: During Operation

    Instruction book 2. Switch on the voltage. 3. Close all manual condensate drain valves. 4. Press the start button (1). The compressor starts running and automatic operation LED lights up. 5. The regulator will automatically stop and start the compressor modules in function of the air pressure.

  • Page 85: Stopping

    Instruction book Stopping Procedure 1. Press the stop button (2). 2. Close the air outlet valve. See section Introduction. 3. Switch off the voltage. 4. Open the manual condensate drain valve. Taking out of operation Procedure 1. Stop the compressor and close the air outlet valve. 2.

  • Page 86: Maintenance

    Instruction book Maintenance 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. • Press the emergency stop button (S3). •...
  • Page 87 Instruction book Period Running Service Plan Operation (note 1) hours (note Every 3 • Check the pressure drop over the (optional) filters . months • Inspect the air inlet filters: check for cleanness and (note 2) damage. Replace a dirty or damaged filter with a new one.

  • Page 88: Service Kits

    Instruction book Period Running Service Plan Operation (note 1) hours (note Every 4 10000 8 bar and 116 psi compressors: years • Replace the element outlet pipe and the plastic insert. See section Outlet pipe replacement (3.7 kW elements only). Note: from S/N API 772 000 onwards, a new type of 3.7 kW compressor element is used.
  • Page 89 Instruction book Electronic components are subject to the EU Directive 2012/19/EC for Waste Electrical and Electronic Equipment (WEEE). As such, these parts must not be disposed of at a municipal waste collection point. Refer to local regulations for directions on how to dispose of this product in an environmental friendly manner.

  • Page 90: Adjustments And Servicing Procedures

    Keep the cooler clean to maintain cooling efficiency. If necessary, remove any dirt with a fibre brush. Never use a wire brush or metal objects. Next, clean by air jet in reverse direction of normal flow. If it is necessary to wash the cooler with a cleansing agent, consult Atlas Copco. Drive motor Instructions The motor bearings are greased for life and do not require special attention.

  • Page 91: Safety Valve

    Belt set exchange and tensioning Important The belts must be replaced as a set, even if only one of them seems worn. Use Atlas Copco belts only. The number of the belt set is mentioned in the Parts list. 2920 7140 52...

  • Page 92: Cleaning The Compressor Element

    Instruction book Procedure 1. Loosen motor hold-down bolts (3). 2. Loosen the belt tension by screwing bolts (4) equally and take off the belts (1). 3. Install new belts. 4. Tension the belts by screwing bolts (4) equally. The tension is correct if the deflection is between 5 mm and 7 mm when exerting a force of 25 N on the belt midway between the pulleys.

  • Page 93: Replacement Of The Outlet Pipe

    Instruction book • Remove fan duct (3). 4. Clean cooling channels: • Remove dust from the cooling channels (1) by means of air jet (see next figure). • Clean the fan duct (2). 5. Reassemble the fan duct: • Put the fan duct in place. •...

  • Page 94: Dryer Maintenance

    Instruction book Replacement procedure 1. Stop the compressor, depressurize and switch off the voltage. 2. Loosen coupling (3) while immobilizing nipple (2) with a wrench. 3. Remove the outlet pipe together with the nipple. 4. Fit the elbow and the nipple to the new outlet pipe and tighten. Use only PTFE tape. 5.
  • Page 95 Instruction book • Contact of liquid refrigerant with the skin can cause freezing. Wear special gloves. If contacted with the skin, the skin should be rinsed with water. On no account may clothing be removed. • Fluid refrigerant can also cause freezing of the eyes. Wear safety glasses. •...

  • Page 96: Problem Solving

    Instruction book Problem solving Before carrying out any maintenance or repair, perform following steps: • Stop the compressor and switch off the voltage. • Open and lock the isolating switch to prevent an accidental start. • Isolate the compressor by closing the outlet valve. •...
  • Page 97 Instruction book Condition Fault Remedy Condenser pressure Fan control switch out of order Have switch replaced too high or too low Condenser fan motor out of order Have fan motor inspected Ambient temperature too high Improve ventilation of compressor room, see section Installation proposal Condenser externally clogged...

  • Page 98: Technical Data

    Instruction book Technical data Electric cable size and fuses • The voltage on the compressor terminals must not deviate more than 10% of 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).
  • Page 99 Instruction book Compressor type Q21/Q2 fuse (1) fuse (2) 2/Q23/ UL/cUL 60 Hz 460 V 33 A 40 A 37 A 45 A 12.0 A 0.43 A SF 17 UL/cUL 60 Hz 575 V 27 A 30 A 30 A 35 A 9.6 A 0.44 A...
  • Page 100 Instruction book Compressor type Q21/Q2 fuse (1) 60 Hz 380 V 27 A 32 A 14.5 A SFD 22 50 Hz 400 V 25 A 25 A 12.8 A SFD 22 UL/cUL 60 Hz 200 V 51 A 60 A 21.9 A SFD 22 UL/cUL 60 Hz 230 V...
  • Page 101 Instruction book Installation method B2 according table B.52.1. Multicore cable in conduit on a wooden wall Maximum allowed current in function of the ambient temperature for installation method B2 Ambient temperature Cable section 30 °C 40 °C 45 °C 50 °C 55 °C 4 mm²...
  • Page 102 Instruction book Installation method F according table B.52.1. Single-core cables, touching in free air Clearance to wall not less than one cable diameter Maximum allowed current in function of the ambient temperature for installation method F Ambient temperature Cable section 30 °C 40 °C 45 °C...
  • Page 103 Instruction book • For a cable of 6 mm² and installation method B2, the maximum current is 30 A x 0.8 = 24 A, which is insufficient. For a cable of 10 mm², the maximum allowed current is 50 A x 0.8 = 40 A.

  • Page 104: Reference Conditions And Limitations

    Instruction book • For supply cables larger than AWG8: use maximum allowed ampacity of the selected supply cables and compare with value in table below (see CEC Part 1 table 17) < 100 A: use AWG8 < 200 A: use AWG6 <...

  • Page 105: Compressor Data

    Instruction book Compressor data All data specified below apply under reference conditions, see section Reference conditions and limitations. 8 bar compressors, 50 Hz Compressor type SF 15 SF 17 SF 22 SFD 11 SFD 15 SFD 22 Maximum working pressure bar(e) 8 (compressors without integrated dryer)
  • Page 106 Instruction book Compressor type SF 15 SF 17 SF 22 SFD 11 SFD 15 SFD 22 Dew point (compressors with °F integrated dryer) 10 bar compressors, 50 Hz Compressor type SF 15 SF 17 SF 22 SFD 11 SFD 15 SFD 22 Maximum working pressure bar(e) 10...
  • Page 107 Instruction book Compressor type SF 15 SF 17 SF 22 SFD 11 SFD 15 SFD 22 Dew point (compressors with °F integrated dryer) 116 psi compressors, 60 Hz Compressor type SF 15 SF 17 SF 22 SFD 11 SFD 15 SFD 22 Maximum working pressure bar(e) 8...
  • Page 108 Instruction book Compressor type SF 15 SF 17 SF 22 SFD 11 SFD 15 SFD 22 145 psi compressors, 60 Hz Compressor type SF 15 SF 17 SF 22 SFD 11 SFD 15 SFD 22 Maximum working pressure bar(e) 10 (compressors without integrated dryer) Maximum working pressure...

  • Page 109: Guidelines For Inspection

    Instruction book 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.

  • Page 110: Ped (Pressure Equipment Directive)

    Instruction book PED (Pressure Equipment Directive) Components subject to Pressure Equipment Directive 97/23/EC (until 20/07/2016) or 2014/68/EU (from 20/07/2016 onwards) Components subject to 97/23/EC / 2014/68/EU Pressure Equipment Directive greater than or equal to category II: Part number Description Medium Pressure 0830 1009 17 Safety valve...

  • Page 111: Declaration Of Conformity

    Instruction book Declaration of conformity Typical example of a Declaration of Conformity document (1): Contact address: Atlas Copco Airpower n.v. P.O. Box 100 B-2610 Wilrijk (Antwerp) Belgium (2): Applicable directives (3): Standards used 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.
  • Page 114 COMMITED TO SUSTAINABLE PRODUCTIVITY We stand by our responsibilities towards our customers, towards the environment and the people around us. We make performance stand the test of time. This is what we call — Sustainable Productivity. www.atlascopco.com...

This manual is also suitable for:

Sf 17+Sf 22+Sfd 11+Sfd 15+Sfd 22+

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