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Instruction book Oil-free scroll compressors SF 2+, SF 4+, SF 6+...
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Atlas Copco Oil-free scroll compressors SF 2+, SF 4+, SF 6+ 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.
Instruction book Table of contents Safety precautions......................5 Safety icons..........................5 General safety precautions....................5 Safety precautions during installation................6 Safety precautions during operation..................7 Safety precautions during maintenance or repair.............. 8 Dismantling and disposal......................10 General description...................... 11 Introduction..........................11 Flow diagram..........................17 Refrigerant dryer........................
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Instruction book 3.10 Event history menu........................39 3.11 Machine settings menu......................40 3.12 Controller settings menu..................... 42 3.13 Access level..........................45 3.14 Web server..........................46 Installation........................51 Dimension drawings......................... 51 Installation proposal......................53 Electrical connections......................55 Pictographs..........................56 Operation........................58 Initial start-up..........................58 Starting.............................59 During operation........................59 Stopping.............................60 Taking out of operation......................61 Maintenance........................
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Instruction book Safety valve ..........................66 Belt replacement........................66 Temperature protection......................68 Cleaning the compressor element..................68 Replacement of the outlet pipe.....................69 Refrigerant dryer maintenance....................71 7.10 Desiccant dryer maintenance....................71 Problem solving......................73 Technical data....................... 77 Readings on control panel....................77 Electric cable size........................77 Settings for overload relay and fuses................78 Temperature protection and safety valve settings............
Instruction book Safety precautions Safety icons Danger: Indicates an imminently hazardous situation which, if not avoided, will result in death or serious injury. Warning: Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. Notice: Indicates a potential situation which, if not avoided, might result in property damage or in an undesirable result or state.
Instruction book • 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 center for advice on specific filtration.
Instruction book • 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. • 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.
Instruction book • 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 • All fasteners are tight • All electrical leads are secure and in good order •...
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Instruction book • Close the compressor air outlet valve and depressurize the compressor before connecting or disconnecting a pipe. • Before removing any pressurized component, effectively isolate the machine from all sources of pressure and relieve the entire system of pressure. See section Maintenance. •...
Instruction book 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.
Instruction book General description Introduction General SF 2 , SF 4 and SF 6 are stationary, single-stage, oil-free compressors, driven by an electric motor. The compressors are controlled by a Touch controller. See section Controller for details. The compressors are enclosed in a sound dampening enclosure and are air-cooled. Available versions: •...
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Instruction book Figure 1: SF 4 Pack, floor-mounted Reference Description Air outlet valve Touch controller Emergency stop button 2920 7219 10...
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Instruction book Figure 2: SF 4 Pack, details Reference Description Inlet air filter Air outlet valve 2920 7219 10...
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Instruction book Reference Description Air cooler Check valve Compressor element Touch controller Motor Safety valve TSHH Temperature sensor Full-Feature A Touch controller module, fitted in the front panel, controls the compressor and the dryer. The electric components are located in the cubicle behind the front panel door. A check valve (CV) prevents loss of compressed air when the compressor is stopped.
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Instruction book Reference Description Manual drain valve Touch controller Dew point gauge Refrigerant dryer Emergency stop button Figure 4: SF 4 Full-Feature, tank-mounted Reference Description Air outlet valve Automatic drain outlet Manual drain valve Touch controller Dew point gauge Refrigerant dryer Emergency stop button 2920 7219 10...
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Instruction book Figure 5: SF 4 Full-Feature, details Reference Description Inlet air filter Air outlet valve Air cooler Check valve Manual drain valve Compressor element Refrigerant dryer Motor Safety valve TSHH Temperature sensor 2920 7219 10...
Instruction book Reference Description Compressed air outlet Figure 7: Full-Feature, tank-mounted units with optional desiccant dryer (CD, 117) Reference Description Full-Feature, tank-mounted units with optional desiccant dryer (CD, 117) To cubicle Compressed air outlet Full-Feature units are fitted with an integrated refrigerant dryer (ID, 200), a desiccant dryer (CD, 117) is optionally available.
Instruction book On Full-Feature units, a separate fan (204) delivers cooling air for the dryer. Condensate management Floor-mounted Pack units have no drain. A water separator is available as an option. The dryer on Full-Feature units has an integrated water separator (201c) and a timer drain (210). The water separator has a manual drain valve (211) and a connection for the automatic drain.
Instruction book Compressed air circuit Compressed air enters the 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 the evaporator/heat exchanger (2) where the refrigerant evaporates, causing the compressed air to be cooled further to close to the evaporating temperature of the refrigerant.
Instruction book Electronic condensate drain The dryer is equipped with an electronic condensate drain. The condensate, separated by the condensate trap, accumulates inside the drain. Once 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).
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Instruction book Operation Figure 9: Flow diagram CD 3 Reference Description Compressed air inlet Dryer controller Left desiccant tower Right desiccant tower Compressed air outlet Flow line Electrical control line Flow restriction Check valve Selector valve Pneumatic silencer Solenoid valve The operation cycle of the dryer is repetitive and is controlled by a factory set timer.
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Instruction book The compressed air entering the dryer is led to one of the towers by means of the bottom selector valve. The position of the selector valve depends on the position (activated or not) of the solenoid valves. As the air flows upwards through the tower, the desiccant adsorbs the water vapor and the compressed air is dried.
Instruction book Controller Controller functions ™ Figure 10: Elektronikon Touch controller Introduction The controller has the following functions: • Controlling the unit. • Protecting the unit. • Monitoring components subject to service. • Automatic restart after voltage failure (ARAVF). This function can only be activated by a service technician. Automatic control of the unit The controller maintains the net pressure between programmable limits by automatically starting and stopping one or more compressor modules.
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Instruction book Several sensors are provided on the unit. If one of the measured signals exceeds the programmed shutdown level, the unit will be stopped. This will be indicated on display and the general alarm LED will blink. Warning: Before remedying, consult the safety precautions. Before resetting a warning or shutdown message, an authorized technician should solve the problem.
Instruction book Control panel Figure 11: Control panel Reference Designation Function Shows the unit operating condition and several icons to Touch screen navigate through the menu. The screen can be operated by touch. Flashes in case of a shut-down, Warning sign is lit in case of a warning condition.
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Instruction book Menu Icon Menu Icon Menu Icon Inputs Outputs Counters Auxiliary Equipment Converters Parameters Service Service Overview Service Plan Service History Service Functions Clean Screen Week Timer Week Remaining Running Time Event History Saved Data Machine Alarms Settings Regulation Control Parameters Auxiliary...
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Instruction book Menu Icon Menu Icon Menu Icon STC valve Auto Restart Controller Network Ethernet Settings Settings Settings CAN Settings Localisation Language Date/Time Units User Password Help Information Status icons Icon Description Motor Stopped Motor Stopped Wait Running Unloaded Manual Unload Running Unloaded Wait Running Loaded Failed to Load...
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Instruction book Icon Description Running Loaded Wait Manual Stop Machine Control Mode, Local Machine Control Mode, Remote Machine Control Mode, LAN Automatic Restart After Voltage Failure Week Timer Active System icons Icon Description Basic User Advanced User Service User Antenna 25% Antenna 50% Antenna 75% Antenna 100%...
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Instruction book Icon Description Element Drain(s) Analogue Output Menu Reset Auto Restart Filter(s) Cooler Valve(s) Power Meter Input icons Icon Description Pressure Temperature Special Protection Open Closed Note: This chapter gives a general survey of available icons. Not all icons mentioned in this chapter are applicable to every machine.
Instruction book Main screen Function The main screen is the screen that is shown automatically when the voltage is switched on. It is switched off automatically after a few minutes when there is no touch input. Description Reference Designation Function The home button is always shown and can be Home button tapped to return to the main screen.
Instruction book Quick access screen Function The screen is used to directly access some frequently used functions. Procedure The quick access screen can be viewed by swiping left, starting from the main screen. Description Through this screen, several important settings can be viewed and modified. Reference Function Description...
Instruction book Reference Function Description Auto restart can be activated by tapping this Auto Restart icon. Menu screen Function This screen is used to display the different menus where settings can be viewed or changed. Procedure The menu screen can be viewed by tapping the menu button or by swiping right, starting from the main screen.
Instruction book Menu structure Operating the controller can be done by swiping through screens and tapping icons or menu items. This is the main structure. It can differ depending on the configuration of the unit. Data menu Function This screen is used to display the following submenus: •...
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Instruction book Description Reference Description Status menu Inputs menu Outputs menu Counters Auxiliary equipment menu Status menu Tap the Status icon to enter the Status menu. This menu shows the current status of the unit. If an alarm is active, it can be viewed by tapping the alarm message. To reset an alarm, tap the reset button.
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Instruction book Outputs menu Tap the Outputs icon to enter the Outputs menu. This menu shows information about all the outputs. Danger: Voltage-free outputs may only be used to control or monitor functional systems. They should NOT be used to control, switch or interrupt safety related circuits. Check the maximum allowed load on the label.
Instruction book Service menu Function This screen is used to display the following submenus: • Service • Service Functions (visible as advanced user) • Clean Screen These submenus can be entered by tapping the icons. Procedure To enter the Service menu screen: 1.
Instruction book 1. Tap the desired service plan. A selection screen will pop up. 2. Change the Running Hours by tapping ‘–’ or ‘+’. 3. Confirm by tapping ‘V’ or decline by tapping ‘X’. The service history can be viewed by tapping icon (3). When a service plan interval is reached, a message will appear on the screen.
Instruction book Description Reference Designation Function If less than 4 weeks are programmed, tap the ‘+’ Add or select week button to add a week. Remove week Tap to remove a programmed week timer. A selection screen pops up. The user can choose the correct week by tapping ‘–’...
Instruction book Reference Description Saved Data Saved data Tap the Saved Data icon to enter the Saved Data menu. Scroll through the items swiping up and down in this list. The event date and time is shown at the right side of the screen. Press on one of the items in the list for more information reflecting the status of the unit when the shutdown occurred.
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Instruction book Alarms menu Tap the Alarms icon to enter the Alarms menu. A list of all alarms is shown. When pressing on one of the items in the underlying list, the warning and/or shutdown levels are shown for this alarm. Regulation menu Tap the Regulation icon to enter the Regulation menu.
Instruction book Auxiliary equipment parameters menu Tap the Aux. Equipment Parameters icon to enter the Aux. Equipment Parameters menu. This menu shows an overview of all the auxiliary equipment fitted. Through this menu, the parameters of the auxiliary equipment can be changed. Modify a setting When tapping a list item, a selection screen pops up.
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Instruction book • Information • Main Chart These submenus can be entered by tapping the icons. Procedure To enter the Controller Settings menu screen: 1. Tap the Menu button. 2. Tap the Controller Settings icon. Description Reference Description Network Settings menu Localisation menu User Password menu Help menu...
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Instruction book When tapping a list item, a selection screen pops up. The user can change the selection by swiping up or down and confirm by tapping ‘V’ or decline by tapping ‘X’. Localisation menu Tap the Localisation icon to enter the Localisation menu. Language The language setting of the controller can be modified through this menu.
Instruction book This menu can show a link to the web page of your supplier, a helpdesk phone number or other helpful information. Information menu Tap the Information icon to enter the Information menu. This menu shows information about the controller. 3.13 Access level Function...
Instruction book Reference Designation Function Confirm Tap to confirm the selected user level. Service access level Tap the Service access level icon (1) and confirm (2). The screen information bar (1) now shows the current status of the unit instead of the machine serial number.
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Instruction book Configuration of the network card • Go to Network and Sharing Center (1). • Click on Change adapter settings (1). • Select the Local Area Connection, which is connected to the controller. • Click with the right button and select Properties (1). 2920 7219 10...
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Instruction book • Use the check box Internet Protocol version +4 (TCP/IPv4) (1) (see picture). To avoid conflicts, uncheck other properties if they are checked. After selecting TCP/IPv4, click on the Properties button (2) to change the settings. • Use the following settings •...
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Instruction book • Adapt the network settings in the controller. • Put the controller in advanced mode by navigating to Menu > Controller settings > Network settings > Ethernet settings. • Switch off the ethernet communication to allow the editing of the settings. •...
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Instruction book Navigation and options • • The banner shows the unit type and the language selector. In this example, three languages are available on the controller. • • On the left side of the interface, you can find the navigation menu. If a license for ESi is foreseen, the menu contains 3 buttons: •...
Instruction book Installation Dimension drawings The dimension drawings can be found in the technical documentation supplied with the compressor. Model Dimension drawing number SF 2-6 P FM EL metric 9820 6376 02-02 SF 2-6 P FM EL imperial 9820 6376 02-05 SF 2-6 FF FM EL metric 9820 6376 03-02 SF 2-6 FF FM EL imperial...
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Instruction book Text on drawings Translation or Explanation DOOR FULLY OPEN Dimensions with fully open door COOLING AIR INLET OF Cooling air inlet for the dryer DRYER ANCHOR POINTS Location of anchoring points AIR RECEIVER MANUAL Manual drain of the air receiver DRAIN THE DIMENSIONS FOR Dimensions of the 500 l vessel are indicated between ( ) where they...
Instruction book Installation proposal Reference Description Dryer service panel Service panel Supply cable Minimum area to be reserved for servicing purposes Condensate drain Manual drain Automatic drain 2920 7219 10...
Instruction book Recommendations 1. Install the compressor on a level, horizontal, industrial floor, suitable for taking the weight of the compressor. It is mandatory to remove the shipment pallet to install the compressor correctly. The location must be a frost-free and preferably low dust location. 2.
Instruction book insulated. The condensate drain pipe from the compressor to the sewer must not dip into the water of the sewer. 11. The PD filter, installed upstream the membrane dryer or the desiccant dryer, is a high efficiency filter that traps particles down to 0.01 micron and occasionally remaining water droplets.
Instruction book 4. Replace the fuses. 5. Adjust the overload relay settings. See section Settings of overload relay and fuses. Pictographs Pictographs Reference Description Warning: the compressor starts and stops automatically. Do not perform service when pressurized and when the voltage is on. Read the instruction book, switch off the power and depressurize the compressor before maintenance or repair.
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Instruction book Reference Description Do not work on the compressor when the unit is running, under pressure or in automatic operation. Always read the instruction book first. Switch off the voltage, release the pressure and prevent that the unit is switched on inadvertently (Lock out/Tag out) before working on the equipment.
Instruction book Operation Initial start-up Safety Warning: The operator must apply all relevant safety precautions. Warning: The maximum recommended motor starting frequency is 20 starts per hour. In order to keep the number of starts at an acceptable level, the compressor must be connected to an air receiver with a suitable size.
Instruction book Reference Description Rotation control check Electro-pneumatic controlled compressors Compressors with Touch controller A compressor equipped with a phase sequence relay will not start if the phase sequence is wrong. In that case, reverse two of the incoming electric lines to solve the issue. A wrong phase sequence will be indicated on the display as a motor overload.
Instruction book Check that condensate is discharged regularly by the automatic drain of the dryer. The amount of condensate depends on the operating conditions of the unit and the humidity of the air. Open the manual drain valve from time to time to remove any impurities. See section Preventive maintenance schedule.
Instruction book Taking out of operation Procedure 1. Stop the compressor and close the air outlet valve. 2. Switch off the voltage and disconnect the compressor from the mains. 3. Depressurize the compressor. 4. On Full-Feature units and on compressors with an air receiver, open the manual drain valve(s) (Dm / Dm1).
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. • Close the air outlet valve and open the manual condensate drain valves. •...
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Instruction book Running Period Operation hours Inspect the air inlet filter(s) (AF). Inspect the pre-filter mats on the cooling air intake openings (if fitted). Check for cleanness and damage. Clean if dirty, replace if damaged. Every 3 Clean the compressor and check the air cooler . If necessary, clean by months air jet.
Instruction book Running Period Operation hours 8 bar and 116 psi compressors: • Replace the element outlet pipe and the plastic insert (only on SF and SF 4 ). See section Outlet pipe replacement. Note: From S/N API 744 000 onwards, a new version of compressor element is used on SF 4 .
Instruction book Adjustments and servicing procedures Air filter Figure 12: Air filter (AF) Procedure 1. Stop the compressor, close the air outlet valve and switch off the voltage. 2. Remove the filter cover and the filter element. Discard damaged or clogged elements. Clean the cover.
Instruction book Safety valve Testing Danger: No adjustments are allowed. Never run the compressor without safety valve. Warning: The safety valve (SV) test can only be performed by authorized personnel and is protected by a security code. 1. Stop the compressor, close the air outlet valve and switch off the voltage. 2.
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Instruction book 3. Remove the front panel. 4. Remove the inlet baffle (I). 5. Loosen the screws (B). 6. Loosen the screw (C). 7. Use slot (D) to lift the motor plate. 8. Install the new belt(s) in the pulley grooves. 9.
Instruction book 10. Tighten the screws (B). Reinstall the inlet baffle. 11. Check the belt tension after the first 500 running hours. Temperature protection Description The compressor element is protected by a PT 1000 sensor in the element outlet. The sensor is connected to the controller.
Instruction book • Remove the fan duct (3). 4. Clean cooling channels: • Remove dust from the cooling channels (1) by means of an air jet (see next figure). • Clean the fan duct (2). 5. Reassemble the fan duct: •...
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Instruction book Replacement procedure 1. Stop the compressor, depressurize and switch off the voltage. 2. Loosen the coupling (3) while immobilizing the nipple (2) with a wrench. 3. Remove the outlet pipe together with the nipple. 4. Fit the nipple to the new outlet pipe and tighten. Use only PTFE tape. 5.
Instruction book disassembly, please apply the same assembly procedure as described above. Maximum torque: 15 Nm (11.1 lbf.ft) (hand tight plus maximum 2 revolutions). Refrigerant dryer maintenance Danger: The dryer circuit contains refrigerant. When handling refrigerant, all applicable Safety precautions during maintenance or repair must be observed. Specifically be aware of following points: •...
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Instruction book General recommendations and precautions The desiccant dryer does not need extensive maintenance. Nevertheless, before carrying out any maintenance or corrective activity, read the following recommendations and safety precautions and act accordingly: • Switch off all electrical power. • Depressurize the compressor.
Instruction book Problem solving 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. •...
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Instruction book Condition Fault Remedy Check and correct; see section Air inlet temperature too high. Reference conditions and limitations. Fuses blown. Check fuses and remedy the cause. Shortage of refrigerant. Have circuit repaired or recharged. Dew point too high. Refrigerant compressor does not See below.
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Instruction book Condition Fault Remedy Close the valve installed between The dryer has not had the time to the dryer and the application (if regenerate completely. permitted) and have the desiccant regenerated. Check PD filter and the drains. Fit an Liquid water at dryer inlet.
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Instruction book Condition Fault Remedy If the shuttle does not seal, there will be a leak path between inlet air and Inlet pressure drops Shuttle O-ring damaged. exhaust. Open the valve block and every cycle. inspect the shuttle O-ring. Replace O-ring if needed.
Instruction book Technical data Readings on control panel Note: The data is valid under the reference conditions. See section Reference conditions and limitations. Description Reference Description Touch controller Dew point gauge Emergency stop button Regularly check the display. Important information can be found here, like the working pressure, starting and stopping pressure, dew point, hour meter and service messages.
Instruction book SF 2 SF 4 SF 6 Frequency Voltage Cable size 60 Hz 380 V 3~ 1.5 mm 1.5 mm 2.5 mm UL/CUL 60 Hz 200 V 3~ AWG 12 AWG 10 AWG 8 60 Hz 230 V 1~ 60 Hz 230 V 3~ AWG 12...
Instruction book SF 4 SF 4 SF 6 SF 6 Overload Maximum Overload Maximum Frequency Voltage relay fuse relay fuse 50 Hz 200 V 3~ 17.3 A 20 A 25.7 A 25 A 50 Hz 230 V 3~ 15.7 A 20 A 23.3 A 20 A...
Instruction book Reference conditions and limitations Reference conditions Characteristic Unit Data Air inlet pressure (absolute) Air inlet pressure (absolute) 14.5 Air inlet temperature ºC Air inlet temperature ºF Relative humidity Working pressure See section Compressor data Limitations Characteristic Unit Data Maximum working pressure See section Compressor data Maximum inlet temperature...
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Instruction book Compressor type SF 2 Nominal motor power dB(A Sound pressure level Refrigerant type (Full-Feature) R513a R513a Dew point (Full-Feature) °C Dew point (Full-Feature) °F Compressor type SF 4 bar(e Maximum working pressure (Pack) psi(g Maximum working pressure (Pack) bar(e Maximum working pressure (Full-Feature) 7.75...
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Instruction book Compressor type SF 6 psi(g Reference working pressure Air temperature at outlet valve (Pack) °C Air temperature at outlet valve (Pack) °F Air temperature at outlet valve (Full-Feature) °C Air temperature at outlet valve (Full-Feature) °F Motor shaft speed (50 Hz) 2905 2905 Motor shaft speed (60 Hz)
Instruction book Instructions for use Oil separator vessel 1. The vessel can contain pressurized 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.
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.
Instruction book Pressure equipment directives Components subject to 2014/68/EU Pressure Equipment Directive Components subject to 2014/68/EU Pressure Equipment Directive greater than or equal to category Pressure version Part number Description PED Class 8 bar 0830 1008 54 Safety valve 116 psi 0830 1008 49 Safety valve 10 bar...
Instruction book Declaration of conformity Figure 13: Typical example of a Declaration of Conformity document Contact address: Atlas Copco Airpower n.v. P.O. Box 100 B-2610 Wilrijk (Antwerp) Belgium Applicable directives 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.
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