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Summary of Contents for Atlas Copco SF 1
- Page 1 Atlas Copco Oil-free scroll compressors SF 1, SF 2, SF 4, SF 6 Instruction book...
- Page 3 Atlas Copco Oil-free scroll compressors SF 1, SF 2, SF 4, SF 6 From following serial No. onwards: API 730 000 Instruction book Original instructions Copyright notice Any unauthorized use or copying of the contents or any part thereof is prohibited.
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Page 4: Table Of Contents
Instruction book Table of contents Safety precautions......................4 ........................... 4 AFETY ICONS ......................4 AFETY PRECAUTIONS GENERAL ................... 5 AFETY PRECAUTIONS DURING INSTALLATION ....................6 AFETY PRECAUTIONS DURING OPERATION ................7 AFETY PRECAUTIONS DURING MAINTENANCE OR REPAIR General description......................9 ...........................9 NTRODUCTION ..........................14 LOW DIAGRAM ........................16... - Page 5 Instruction book ......................29 ISPOSAL OF USED MATERIAL Adjustments and servicing procedures..............30 ........................... 30 RESSURE SWITCH ............................31 IR FILTER ............................ 32 IR COOLER ..........................32 RIVE MOTOR ..........................32 AFETY VALVE ..........................33 ELT REPLACEMENT ....................... 35 EMPERATURE PROTECTION ....................35 LEANING THE COMPRESSOR ELEMENT .....................36 EPLACEMENT OF THE OUTLET PIPE 6.10...
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Page 6: 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 7: 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 8: Safety Precautions During Operation
Instruction book 15. Piping or other parts with a temperature in excess of 80˚C (176˚F) and which may be accidentally touched by personnel in normal operation must be guarded or insulated. Other high temperature piping must be clearly marked. 16. For water-cooled machines, the cooling water system installed outside the machine has to be protected by a safety device with set pressure according to the maximum cooling water inlet pressure. -
Page 9: Safety Precautions During Maintenance Or Repair
Instruction book 11. Never remove or tamper with the safety devices, guards or insulation fitted to the machine. Every pressure vessel or auxiliary installed outside the machine to contain air above atmospheric pressure shall be protected by a pressure relieving device or devices as required. 12. - Page 10 Instruction book 15. All regulating and safety devices shall be maintained with due care to ensure that they function properly. They may not be put out of action. 16. Before clearing the machine for use after maintenance or overhaul, check that operating pressures, temperatures and time settings are correct.
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Page 11: General Description
Introduction General SF 1, 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 pressure switch. The compressors are enclosed in a sound dampening enclosure and are air cooled. - Page 12 Instruction book SF 6 P - floor mounted - general view Pressure gauge Q1/H1 On/off switch with lamp Hour meter Outlet valve SF 6 P on a 270 l receiver - general view 2920 7110 11...
- Page 13 Instruction book Pressure gauge Q1/H1 On/off switch with lamp Hour meter Air outlet valve Manual drain valve SF 6 P with integrated air receivers (3 x 10 l) - general view 3 x 10 l receiver Air outlet valve 2920 7110 11...
- Page 14 Instruction book SF 4 P - details Inlet air filter Air outlet valve Air cooler Compressor element Motor Pressure switch Safety valve TSHH Temperature switch Check valve SF Full-Feature The control panel comprises a pressure gauge, an hour meter, a start button and a temperature gauge indicating the dew point (Gd).
- Page 15 Instruction book SF 6 FF floor mounted - general view Pressure gauge Q1/H1 On/off switch with lamp Hour meter Air outlet valve Manual drain valve Automatic drain outlet Dew point gauge Refrigerant dryer SF 6 FF - details 2920 7110 11...
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Page 16: Flow Diagram
Instruction book Inlet air filter Air outlet valve Air cooler Compressor element Motor Check valve Safety valve Manual drain valve Refrigerant dryer TSHH Temperature switch Flow diagram Flow diagram 2920 7110 11... - Page 17 Instruction book Compressor module Units with dryer on air receiver Units without dryer and air receiver Refrigerant dryer Units with dryer, without receiver To cubicle Units without dryer on air receiver Compressed air outlet Air flow Air is drawn through air filter (100) and is compressed by the compressor element (101). Next, the compressed air flows through the check valve (105) and the air cooler (106).
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Page 18: Refrigerant Dryer
Instruction book Regulating system and protection The compressor is started and stopped automatically by a pressure switch (PS). A pressure gauge (PI) indicates the pressure. A temperature switch (TSHH) protects the compressor element from too high temperatures. A safety valve (108) protects the compressor element against too high pressure. Refrigerant dryer Operation The refrigerant dryer removes moisture from the compressed air by cooling it down to near freezing... - Page 19 Instruction book Refrigerant circuit Compressor (4) delivers hot, high-pressure refrigerant gas which flows through condenser (6) where most of the refrigerant condenses. Next, the liquid refrigerant flows through dryer/filter (7) to capillary tube (8). The refrigerant leaves the capillary tube at evaporating pressure. The refrigerant enters evaporator (2) where it withdraws heat from the compressed air by further evaporation at constant pressure.
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Page 20: Installation
9820 6376 04-04 SF 1-6 FF TM EP metric 9820 6376 05-01 SF 1-6 FF TM EP imperial 9820 6376 05-04 SF 1-6 P-FF 30 l EP metric 9820 6376 06-01 SF 1-6 P-FF 30 l EP imperial 9820 6376 06-04 Legend... -
Page 21: Installation Proposal
Instruction book Text on drawings Translation or Explanation Dimensions of the Full Feature units are indicated between ( ) THE DIMENSIONS FOR FULL FEATURE UNIT... Installation proposal Dryer service panel Condensate drain Service panel Manual drain Supply cable Automatic drain Minimum area to be reserved for servicing purposes 2920 7110 11... - Page 22 Instruction book Recommendations 1. Install the compressor on a level horizontal industrial floor, suitable for taking the weight of the compressor. The location must be frost-free and preferably low dust location. The compressor unit must be installed on a level floor. 2.
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Page 23: Electrical Connections
Instruction book Electrical connections Attention The electrical installation must correspond to the applicable codes. The mains supply and earthing lines must be of suitable size. The installation must be earthed and protected by fuses in each phase. Install an isolating switch near the compressor. Make sure that this switch is open to isolate the compressor from the mains before carrying out any connection. -
Page 24: Pictographs
Instruction book Pictographs Pictographs Reference Designation 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. Warning: when the voltage is on, the unit can start and stop automatically. -
Page 25: Operation
Instruction book Operation Initial start-up Safety The operator must apply all relevant Safety precautions during operation. The maximum recommended motor starting frequency is starts 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. -
Page 26: Starting
Instruction book blown upwards. If the direction is wrong, stop the compressor immediately and reverse two incoming electric lines. Rotation control check Electropneumatic controlled compressors Compressors with Elektronikon controller A compressor equipped with a phase sequence relay will not start if the phase sequence is wrong. In that case, reverse two incoming electric lines to solve the issue. -
Page 27: During Operation
Instruction book 3. Switch on the voltage. Lamp (H1) alights. 4. Rotate switch (Q1) to position I. 5. The motor starts and stops automatically depending on the air pressure. 6. On compressors equipped with a refrigerant dryer, the dew point of the refrigerant dryer will be reached after a few minutes. -
Page 28: Taking Out Of Operation
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. Depressurise the compressor. On compressors with refrigerant dryer and on compressors with an air receiver, open the manual drain valve(s) (Dm / Dm1). -
Page 29: Preventive Maintenance
Instruction book Preventive maintenance Preventive maintenance schedule 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. • Depressurize the compressor by opening the manual drain valve(s). The operator must apply all relevant Safety precautions during maintenance or repair. - Page 30 • Replace the element outlet pipe and the plastic insert. See section Outlet pipe replacement. (Only on SF 1, SF 2 and SF 4) • Clean fan (FN1 - see Flow diagram), fan duct and element cooling fins (see note 2).
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Page 31: Service Kits
Instruction book Service kits Service kits For overhauling and for preventive maintenance, a wide range of service kits is available. Service kits comprise all parts required for servicing the component and offer the benefits of genuine parts while keeping the maintenance budget low. Consult the Spare Parts List for part numbers. -
Page 32: Adjustments And Servicing Procedures
Instruction book Adjustments and servicing procedures Pressure switch Description The pressure switch (PS - See section Flow diagram) determines the operating pressure of the compressor. The stopping and starting pressures are the opening and closing pressures of the switch. Adjustments may only be carried out when the switch is pressurized. Pressure switch The stopping pressure is controlled by adjusting screw (2). -
Page 33: Air Filter
Instruction book Adjustment range Example: Stopping pressure: 7 bar(e) (100 psig) Starting pressure: adjustable between 5.8 bar(e) (84 psig) and 3 bar(e) (43.5 psig) 8 bar (116 psi) units: the pressure switch is factory-adjusted to start the compressor at 6.5 bar(e) (94 psig) and to stop at 7.75 bar(e) (112 psig). -
Page 34: Air Cooler
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 35: Belt Replacement
If more than one belt is used, 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. 1. Remove the service panel (S). - Page 36 Instruction book 5. Loosen screws (B). 6. Loosen screw (C). 7. Use slot (D) to lift the motor plate. 8. Install the new belt(s) in the pulley grooves. 9. Set the tension of the belt(s) by screwing bolt (C) out. Refer to the label on the motor plate for tensioning data: 10.
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Page 37: Temperature Protection
Instruction book Temperature protection Description The scroll element is protected by a temperature switch. The switch monitors the temperature of the compressor element. The switch shuts down the compressor in case of overheating. After cooling down, the switch automatically resets itself. No adjustment is possible. -
Page 38: Replacement Of The Outlet Pipe
The unit is now again ready for use. Replacement of the outlet pipe (only applicable to SF 1, SF 2 and SF 4) Description The element outlet pipe (1) of the 2.2 kW and the 3.7 kW elements contains a plastic insert (3). Due to the heat of the compressed air, the plastic insert can become brittle after time. -
Page 39: 6.10 Refrigerant Dryer Maintenance
Instruction book 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. Fit the plastic insert in place as indicated on the drawing and assemble the outlet pipe with a maximum torque of 5 Nm (3.7 lbf.ft). - Page 40 Instruction book • Work on the refrigerant circuit of the cooling dryer or on any equipment which influences its function must be undertaken by an authorized control body. • The installation should be checked once a year by an authorized control body. General The following remarks should be kept in mind: •...
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Page 41: 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 42 Instruction book Condition Fault Remedy Dew point too high Air inlet temperature too high Check and correct; see section Reference conditions and limitations Fuses blown Check fuses and remedy the cause. Shortage of refrigerant Have circuit repaired or recharged. Refrigerant compressor does not run See below Evaporator pressure is too high See below...
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Page 43: Technical Data
The voltage drop must not exceed 5% of the nominal voltage. It may be necessary to use cables of a larger size than those stated to comply with this requirement. Cable size SF 1 SF 2 SF 4 SF 6... -
Page 44: Settings For Overload Relay And Fuses
Instruction book SF 1 SF 2 SF 4 SF 6 Frequency Voltage Cable size Cable size Cable size 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... -
Page 45: Temperature Protection And Safety Valve Settings
Temperature protection and safety valve settings Temperature shut-down switch settings (TSHH) Compressor element outlet temperature Opens at SF 1 (8 bar / 116 psi) 70 °C (158 °F) SF 1 (10 bar / 145 psi) 80° C (176 °F) SF 2 (8 bar and 10 bar / 116 and 145 psi) 70 °C (158 °F) -
Page 46: Compressor Data
Minimum ambient temperature ˚F Compressor data All data specified below apply under reference conditions, see section Reference conditions and limitations. Compressor type SF 1 SF 1 SF 2 SF 2 8 bar 10 bar 8 bar 10 bar 116 psi... - Page 47 Instruction book Compressor type SF 4 SF 4 SF 6 SF 6 8 bar 10 bar 8 bar 10 bar 116 psi 145 psi 116 psi 145 psi Maximum working pressure (Pack) bar(e) Maximum working pressure (Pack) psi(g) Maximum working pressure (Full-Feature) bar(e) 7.75 9.75...
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Page 48: Instructions For Use
Instruction book Instructions for use Air receiver This section applies to compressors including air receiver(s). The vessel can contain pressurized air; this can be potentially dangerous if the equipment is misused. The vessel shall only be used to store compressed air and shall not be subject to rapid fluctuation of pressure. -
Page 49: 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 50: Pressure Equipment Directives
Instruction book Pressure equipment directives 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 Pressure version Part number Description PED Class 8 bar 0830 1008 54... -
Page 51: 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 2920 7110 11... - Page 52 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.
- Page 54 Atlas Copco delivers the products and services that help to increase your business’ efficiency and profitability. 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.
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