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Instruction book

2920 1521 00 1

Atlas Copco Stationary Air Compressors

Instruction book

SF1 - SF2 - SF4 Skid -Tank-mounted

SF6 - SF8 Twin

SF6 - SF8 - SF11 - SF15 Multi

Copyright 2003, Atlas Copco Airpower n.v, Antwerp, Belgium.

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 meets the requirements for instructions specified by the machinery directive

98/37/EC and is valid for CE as well as non-CE labelled machines.

No. 2920 1521 00

Registration code: APC SF / 38 / 980

2003-10 www.atlascopco.com

Note: The PED instructions for this machine are included at the end of the book.

Instruction book

2920 1521 00 2

This instruction book describes how to handle the machines to ensure safe operation, optimum

efficiency and long service life.

Read this book before putting the machine into operation to ensure correct handling, operation

and proper maintenance from the beginning. The maintenance schedule comprises measures for

keeping the machine in good condition.

Keep the book available for the operator and make sure that the machine is operated and that

maintenance is carried out according to the instructions. Record all operating data, maintenance

performed, etc. in an operator's logbook available from Atlas Copco. Follow all relevant safety

precautions, including those mentioned on the cover of this book.

Repairs must be carried out by trained personnel from Atlas Copco who can be contacted for any

further information.

In all correspondence mention the type and the serial number, shown on the data plate.

For all data not mentioned in the text, see sections "Preventive maintenance schedule" and "Principal

data".

The company reserves the right to make changes without prior notice.

Instruction book

2920 1521 00 3

1 LEADING PARTICULARS................................................................................................................... 5

1.1 General description........................................................................................................................ 5

1.1.1 Compressor variants ............................................................................................................... 5

1.1.2 Compressor elements (Fig. 1.1).............................................................................................. 5

1.2 Air flow ........................................................................................................................................... 9

1.3 Cooling and condensate drain systems (Fig. 1.9) ......................................................................... 9

1.4 Regulating system on SF Skid - Tank-mounted - Twin ............................................................... 10

1.5 Regulating system on SF Multi .................................................................................................... 11

1.5.1 Controlling the compressor ................................................................................................... 11

1.5.2 Protecting the compressor .................................................................................................... 11

1.5.3 Monitoring components subject to service............................................................................ 11

1.5.4 Automatic restart after voltage failure ...................................................................................11

1.5.5 Control panel (Fig. 1.11) ....................................................................................................... 12

1.5.6 Display – keys ....................................................................................................................... 13

1.5.7 Function keys (5-Fig. 1.11) ................................................................................................... 13

1.6 Electric cabinet on SF Multi ......................................................................................................... 15

1.7 Air dryer on SF Full-Feature (Fig. 1.15)....................................................................................... 16

2 INSTALLATION ................................................................................................................................. 17

2.1 Dimension drawings (Figs. 2.1 up to 2.5) ....................................................................................17

2.2 Installation proposal (Fig. 2.6) ..................................................................................................... 22

2.3 Electrical connections .................................................................................................................. 24

2.4 Pictographs .................................................................................................................................. 27

3 OPERATING INSTRUCTIONS .......................................................................................................... 28

3.1 Initial start-up ............................................................................................................................... 28

3.2 Starting......................................................................................................................................... 28

3.2.1 Multi....................................................................................................................................... 28

3.2.2 Skid - Tank-mounted - Twin .................................................................................................. 28

3.3 During operation .......................................................................................................................... 29

3.3.1 Multi....................................................................................................................................... 29

3.3.2 Skid - Tank-mounted - Twin .................................................................................................. 29

3.4 Stopping....................................................................................................................................... 29

3.4.1 Multi....................................................................................................................................... 29

3.4.2 Skid - Tank-mounted - Twin .................................................................................................. 29

3.5 Taking out of operation at end of compressor service life........................................................... 29

4 MAINTENANCE ................................................................................................................................. 30

4.1 Compressor drive motors ............................................................................................................ 30

4.2 Preventive maintenance schedule for the compressor................................................................ 30

5 ADJUSTMENTS AND SERVICING PROCEDURES ........................................................................ 32

5.1 Air filter (1-Figs. 1.7/1.8) .............................................................................................................. 32

5.2 Belt exchange/tensioning (Fig. 5.1) ............................................................................................. 32

5.3 Coolers......................................................................................................................................... 32

5.4 Safety valve ................................................................................................................................. 33

6 PROBLEM SOLVING ........................................................................................................................ 34

7 PRINCIPAL DATA ............................................................................................................................. 35

7.1 Electric cable size for SF1-8 ........................................................................................................ 35

7.2 Electric cable size for SF 6-15 Multi ............................................................................................ 35

7.3 Overload relays for SF1-8............................................................................................................ 36

7.4 Overload relays for SF6-15 Multi ................................................................................................. 36

7.5 Main fuses for SF1-8.................................................................................................................... 37

7.6 Main fuses for SF6-15 Multi......................................................................................................... 37

7.7 Reference conditions/limitations .................................................................................................. 37

7.8 SF1-4 8bar 50 Hz 1) ................................................................................................................... 38

7.9 SF2-4 10 bar 50 Hz 1) ................................................................................................................ 38

7.10 SF1-4 100 psi 60 Hz 1)............................................................................................................. 38

7.11 SF2-4 145 psi 60 Hz 1)............................................................................................................. 38

7.12 SF6-15 Multi 8 bar 50 Hz 1)...................................................................................................... 39

7.13 SF6-15 Multi 10 bar 50 Hz 1).................................................................................................... 39

7.14 SF6-15 Multi 100 psi 60 Hz 1) .................................................................................................. 39

7.15 SF6-15 Multi 125 psi 60 Hz 1) .................................................................................................. 40

Instruction book

2920 1521 00 4

7.16 SF6-15 Multi 145 psi 60 Hz 1) .................................................................................................. 40

8 REGULATOR FUNCTIONS FOR SF MULTI .................................................................................... 41

8.1 Menu-driven control programs..................................................................................................... 41

8.1.1 Function of control programs ................................................................................................ 42

8.1.2 Main screen........................................................................................................................... 42

8.1.3 Calling up other menus ......................................................................................................... 44

8.2 Quick look at actual compressor status....................................................................................... 44

8.3 Status data menu......................................................................................................................... 45

8.3.1 No message exists ................................................................................................................ 45

8.3.2 A shut-down message exists ................................................................................................45

8.3.3 A warning message exists .................................................................................................... 46

8.3.4 A service warning message exists ........................................................................................ 47

8.4 Measured data menu................................................................................................................... 47

8.5 Counters menu ............................................................................................................................ 48

8.6 Test menu .................................................................................................................................... 48

8.7 Modify parameters menu ............................................................................................................. 49

8.8 Modifying parameters .................................................................................................................. 49

8.8.1 Modifying the pressure bands ............................................................................................... 50

8.9 Modifying protection settings ....................................................................................................... 51

8.9.1 Checking protections for compressor modules..................................................................... 51

8.9.2 Modifying protections for Dryer LAT on Full-Feature machines ........................................... 52

8.10 Modifying service plans ............................................................................................................. 52

8.11 Programming Clock function...................................................................................................... 54

8.11.1 Programming start/stop/pressure band commands ............................................................ 54

8.11.2 To activate/deactivate the timer .......................................................................................... 56

8.11.3 To modify a command......................................................................................................... 56

8.11.4 To add a command ............................................................................................................. 57

8.11.5 To delete commands........................................................................................................... 58

8.12 Configuration menu.................................................................................................................... 59

8.12.1 Programming compressor control modes ........................................................................... 60

8.13 Service menu ............................................................................................................................. 60

8.14 Saved data menu....................................................................................................................... 63

8.15 Programmable settings.............................................................................................................. 64

8.15.1 Regulation settings.............................................................................................................. 64

8.15.2 Service settings ................................................................................................................... 65

9 CONVERSION LIST OF SI UNITS INTO US/BRITISH UNITS ......................................................... 65

Instruction book

2920 1521 00 5

1 LEADING PARTICULARS

1.1 General description

SF1 up to SF15 are stationary, oil-free compressors driven by an electric motor.

1.1.1 Compressor variants

SF Skid (Fig. 1.2)

The components of the compressor are housed in a bodywork with removable front/top panel. The

compressor is mounted on a frame designed to allow easy installation at the required spot.

SF Tank-mounted (Fig. 1.3)

The components of the compressor are housed in a bodywork with removable front/top panel. The

compressor is mounted on an air receiver.

SF Twin (Fig. 1.4)

Two compressor modules are mounted on an air receiver. Each module is provided with its own control

panel.

SF Multi Pack

The compressors have two up to four compressor modules enclosed in a sound-insulated bodywork.

The front door comprises an Elektronikon regulator including the start and stop buttons. An

emergency stop button is also provided. An electric cabinet comprising the motor starter is installed

behind the front door.

SF Multi Full-Feature (Figs. 1.5 and 1.6)

Full-Feature compressors are Pack compressors additionally provided with an air dryer integrated in

the bodywork. The dryer removes moisture from compressed air by cooling the air to near freezing

point and automatically draining the condensate. See section 1.7.

1.1.2 Compressor elements (Fig. 1.1)

Each compressor element consists of a fixed scroll-shaped housing and a scroll-shaped rotor. Air

enters the compressor element through inlet opening (1). Once the air is drawn in, the orbiting scroll

(4) seals the inlet opening and forces the air into a continuously decreasing space. As scroll (4) keeps

orbiting, this process of compression is constantly repeated, resulting in discharging of oil-free

compressed air through outlet opening (3).

1 Air inlet

2 Fixed scroll

3 Compressed air outlet

4 Orbiting scroll

Fig. 1.1 Compressor element

Instruction book

2920 1521 00 6

1 Control panel

2 Air outlet valve

Fig. 1.2 SF4 Skid

1 Control panel

2 Air outlet valve

1.3 SF4 Tank-mounted

Instruction book

2920 1521 00 7

1 Control panels

2 Air outlet valve

Fig. 1.4 SF Twin

1 Elektronikon regulator

2 Electric cabinet

3 Air outlet valve

4 Dryer (on Full-Feature)

5 Compressor modules

S3 Emergency stop button

Fig. 1.5 SF8FF Multi

Instruction book

2920 1521 00 8

1 Elektronikon regulator

2 Electric cabinet

3 Air outlet valve

4 Dryer (on Full-Feature)

5 Compressor modules

6 Safety valve (ASME)

S3 Emergency stop button

Fig. 1.6 SF15FF Multi

1 Air filter

2 Compressor element

3 Air cooler

4 Belts

5 Safety valve

6 Drive motor

7 Safety valve

Fig. 1.7 Details of a compressor module on SF Tank-mounted

Instruction book

2920 1521 00 9

1 Air filter

2 Drive motor

3 Compressor element

4 Compressed air outlet

5 Safety valve (CE)

Fig. 1.8 Details of a compressor module on SF Multi

1.2 Air flow

Air is drawn through the air filter into the compressor modules and is compressed. Compressed air is

discharged through the check valve and air cooler towards the air net.

1.3 Cooling and condensate drain systems (Fig. 1.9)

Each compressor element is cooled by a fan. The fan is mounted on the drive shaft of the compressor

element. The cooling air is blown over the compressor element and air cooler via a duct.

For SF Multi two fans, driven by electric motors, expel warm air from the bodywork.

SF Multi have a condensate trap, with an automatic condensate outlet (2) and a manual drain valve

(1).

1 Manual condensate drain valve

2 Automatic condensate outlet

Fig. 1.9 Condensate drains on SF Multi

Instruction book

2920 1521 00 10

1.4 Regulating system on SF Skid - Tank-mounted - Twin

The air net pressure is kept within limits by a pressure switch mounted in the cabinet below the control

panel (Fig. 1.10). The switch is connected to the air outlet and electrically connected in the circuit of

the drive motor. The switch opens and closes its contacts at pre-set pressures.

1 Pressure gauge

2 On/off switch

3 Hourmeter

4 Air pressure switch/circuit breaker

Fig. 1.10 Control panel SF Skid - Tank-mounted - Twin

When the contacts are closed, the circuit to the drive motor is made: the compressor is operating. The

air output is maximum.

When the pressure reaches the pre-set maximum, the circuit to the drive motor is broken, causing the

compressor to stop. The air output is stopped.

Protecting the compressor

The compressor will be shut down in case temperature switch (TSHH11-Fig. 2.7) trips.

Warning

Before carrying out any inspection or repair, stop the compressor, switch off the voltage, open the

isolating switch and depressurize the compressor.

Instruction book

2920 1521 00 11

1.5 Regulating system on SF Multi

SF Multi are provided with an Elektronikon® regulator (Fig. 1.11) to control the compressor.

The following is a short description of the main functions of the regulator. Consult section 8 for a

detailed description of all functions.

1.5.1 Controlling the compressor

The Elektronikon regulator keeps the net pressure within programmable limits by starting and stopping

the compressor modules, depending on the air consumption. The regulator distributes the running

time among the compressor modules, taking into account the availability and number of running hours

of each compressor module.

When the compressor has stopped automatically and the net pressure decreases, the regulator will

start a compressor module before the net pressure has dropped to the starting pressure to prevent the

net pressure from falling under the programmed minimum level.

1.5.2 Protecting the compressor

If one or more compressor modules are shut down due to a protection function a warning message will

be shown on the display.

The compressor will be shut down in case temperature switch (TSHH20-Fig. 2.8) trips. See also

section 8.3.2.

Warning

Before carrying out any inspection or repair, stop the compressor, switch off the voltage, open the

isolating switch and depressurize the compressor.

After remedying, switch on the voltage and press the key “Reset” (F3).

1.5.3 Monitoring components subject to service

A number of service operations are grouped in plans (called Service plans I, A, B and D). Each

Service plan has a programmed time interval. If a time interval is exceeded, a message will appear on

the display to warn the operator to carry out the service actions belonging to that plan.

1.5.4 Automatic restart after voltage failure

The regulator has a built-in function to automatically restart the compressor if the voltage is restored

after voltage failure. For compressors leaving the factory, this function is made inactive. If desired,

the function can be activated. Consult Atlas Copco.

Instruction book

2920 1521 00 12

Fig. 1.11 Elektronikon regulator on SF Multi

1.5.5 Control panel (Fig. 1.11)

To control the compressor and to read and modify programmable parameters, the regulator is provided with a

control panel including:

Ref Designation Function

1 Start button Push button to start the compressor. LED (8) lights up indicating

that the regulator is operative (in automatic operation).

2 Display Indicates messages concerning the compressor operating

condition, a service need or a fault.

3 Scroll keys Keys to scroll through the display.

4 Tabulator key

Key to select the parameter indicated by a horizontal arrow.

Only the parameters followed by an arrow pointing to the right

are accessible for modifying.

5 Function keys Keys to control and program the compressor.

6 Voltage on LED Indicates that the voltage is switched on.

7 General alarm LED Is alight in case of a warning condition, see section 8.3.

7 General alarm LED

Blinks in case of shut-down condition, if a sensor with shut-

down function is out of order or after an emergency stop. See

section 8.3.

8 Automatic operation LED

Indicates that the regulator is automatically controlling the

compressor: the compressor is stopped and restarted

depending on the air consumption and the limitations

programmed in the regulator.

9 Stop button Push button to stop the compressor. LED (8) goes out.

10 Pictograph Voltage on.

11 Pictograph Alarm condition.

12 Pictograph Automatic operation.

S3 Emergency stop button

Push button to stop the compressor immediately in case of

emergency. After remedying the trouble, unlock the button by

pulling it out.

Instruction book

2920 1521 00 13

1.5.6 Display – keys

Compressor Outlet 7.0 bar

Compressor Running ↓

Menu - - - -

F1 F2 F3

Fig. 1.12 Typical example of a display

Operating condition of a compressor module

The symbols shown above key F3 indicate the operating condition of each control module, see also section

8.1.2:

Symbol Indicates

-

that the compressor module is available (ready to run), each

symbol stands for a compressor module (the left symbol stands for

the lowest mounted module, the right symbol stands for the

highest module)

▄ that the compressor module is running

- (blinking) that the compressor module is not available (due to minimum stop

time or too many starts)

* (blinking) that the compressor module is shut-down

Scroll keys (3-Fig. 1.11)

These keys, labelled with vertical arrows, allow to scroll through the display.

As long as a downwards pointing arrow is shown at the utmost right position of the display, the key (3) with

the same symbol can be used to see the next item.

As long as an upwards pointing arrow is shown at the utmost right position of the display, the key (3) with the

same symbol can be used to see the previous item.

Tabulator key (4-Fig. 1.11)

This key, labelled with two horizontal arrows, allows the operator to go to the next field of the display, e.g.

during modifying of programmable parameters.

1.5.7 Function keys (5-Fig. 1.11)

The keys are used:

- To call up or program settings

- To reset an active shut-down or service message, or an emergency stop

- To have access to all data collected by the regulator

The function keys allow to make the required selection from a menu of possibilities. The functions of the keys

vary depending on the displayed menu. The actual function is abbreviated and indicated on the bottom line of

the display just above the relevant key. Only the active and relevant functions at a moment are shown:

Designation Function

Back To return to a previously shown option or menu

Cancel To cancel a programmed setting when programming parameters

Delete To delete compressor start/stop commands

Extra To find the module configuration of the regulator

Help To find the Atlas Copco internet address

Limits To show limits for a programmable setting

Mainscreen To return from a menu to the main screen

Instruction book

2920 1521 00 14

Designation Function

Menu Starting from the main screen, to have access to submenus

Menu Starting from a submenu, to return to a previous menu

Modify To modify programmable settings

Program To program modified settings

Reset To reset a timer or message

Return To return to a previously shown option or menu

Selecting a menu

To facilitate controlling the compressor, menu-driven programs are implemented in the electronic module.

Use the function keys (5) to select the menus in order to program and monitor the compressor. See also

section 8.

Fig. 1.13 Menu flow, SF Multi

Instruction book

2920 1521 00 15

1.6 Electric cabinet on SF Multi

F1/8 Fuses

K11 Auxiliary contactor, dryer

K21/24 Contactors

Q21/24 Circuit breakers

T1/2 Transformers

1X0 Terminal strip, mains supply

1X2 Terminal strip, dryer

1X3/6 Terminal strips

Fig. 1.14 Electric cabinets, SF Multi

Instruction book

2920 1521 00 16

1.7 Air dryer on SF Full-Feature (Fig. 1.15)

Compressed air circuit

Wet compressed air enters heat exchanger (13) and is cooled by the outgoing, cold, dried air. Water in the

incoming air starts to condense. The air then flows through heat exchanger (11) where the refrigerant

evaporates and withdraws heat from the air. More water in the air condenses. The cold air then flows

through condensate separator (3) where the condensate is separated from the air. The condensate is

automatically drained through outlet (5). The cold, dried air then flows through heat exchanger (13), where it

is warmed up by the incoming air.

Refrigerant circuit

Compressor (M1) delivers hot, high-pressure refrigerant gas which flows through condenser (9) where most

of the refrigerant condenses.

The liquid flows through liquid refrigerant dryer/filter (12) to capillary tube (7). The refrigerant leaves the

capillary tube at evaporating pressure.

The refrigerant enters evaporator (11) where it withdraws heat from the compressed air by further evaporation

at constant pressure. The heated refrigerant leaves the evaporator and is sucked in by the compressor.

AO

AI

5

6

4

3

21

13

11

12

REFRIGERANT LIQUID (3)

REFRIGERANT GAS (2)

AIR (1)

50972D

7

10

S3

9

8

M2

M1

Text on Fig. 1.15

(1) Air

(2) Refrigerant gas

(3) Refrigerant liquid

AI Wet air inlet 5 Automatic condensate drain

AO Dry air outlet 6 Manual condensate drain valve

M1 Refrigerant compressor 7 Capillary tube

M2 Condenser fan motor 8 Condenser cooling fan

S3 Fan control switch 9 Refrigerant condenser

1 Pressure dewpoint sensor 10 Hot gas by-pass valve

2 Insulating block 11 Air/refrigerant heat exchanger/evaporator

3 Condensate separator 12 Liquid refrigerant dryer/filter

4 Condensate trap 13 Air/air heat exchanger

Fig. 1.15 Dryer on SF Full-Feature

Instruction book

2920 1521 00 17

2 INSTALLATION

2.1 Dimension drawings (Figs. 2.1 up to 2.5)

9820 4052 00/1

55100D

(1) (2)

(3)

(4)

(5)

(6) (7) (8)

Fig. 2.1 Dimension drawing, SF 1-4 Skid

9820 4053 00/1

55101D

(1) (2)

(3)

(4)

(5)

(6) (7) (8)

Fig. 2.2 Dimension drawing, SF 1-4 Tank-mounted

Instruction book

2920 1521 00 18

9820 4054 00/1

55102D

(1) (2) (2) (1)

(3)

(4)

(5)

(6) (7) (8)

Fig. 2.3 Dimension drawing, SF 6-8 Twin

Text on Figs.2.1/2.3

1 Motor cooling air outlet 5 Electrical supply

2 Element cooling outlet 6 Type

3 Cooling air inlet 7 Pressure

4 Compressed air outlet 8 Mass, approx.

Instruction book

2920 1521 00 19

(1)

(2)

(3)

(4)

(5)

(6)

(7)

(8) (9)

(10)

(11)

(8) (9)

(12)

(13)

(14)

(15)

9820 4027 00

55098D

Fig. 2.4 Dimension drawing, SF 6-8 Multi

Instruction book

2920 1521 00 20

9820 4026 00

55099D

(1)

(16)

(2)

(3)

(4)

(5)

(6)

(7)

(8) (9)

(10)

(11)

(8) (9)

(12)

(13) (14)

(15)

Fig. 2.5 Dimension drawing, SF 11-15 Multi

Instruction book

2920 1521 00 21

Text on Figs. 2.4/2.5

(1) Electric cable

(2) Manual drain

(3) Automatic drain

(4) Compressor cooling air outlet

(5) Bodywork ventilation

(6) Aftercooler and dryer cooling air outlet

(7) Centre of gravity

(8) With dryer

(9) Without dryer

(10) Dimensions +/- 10 mm

(11) Weight

(12) Weight +/- 10 kg

(13) Compressor and bodywork cooling air inlet

(14) Aftercooler and dryer cooling air inlet

(15) Compressed air outlet

(16) Data plate

Instruction book

2920 1521 00 22

2.2 Installation proposal (Fig. 2.6)

9820 3960 00

55097D

(3)

(1)

(2)

Fig. 2.6 Installation proposal, SF Multi

Text on Figs. 2.6

(1) Minimum free area

(2) Compressor

(3) Ventilation proposals

Instruction book

2920 1521 00 23

1 Install the compressor on a level floor, in a cool but frost-free room which is well-ventilated.

The air should be clean.

2 Position of compressed air outlet valve.

3 The maximum total pipe length can be calculated as follows:

L = (dP x d5 x P) / (450 x Qc1.85)

L = pipe length in m

dP = maximum allowable pressure drop (recommended 0.1 bar)

d = inner diameter of pipe in mm

P = compressor outlet pressure in bar absolute

Qc = free air delivery of compressor in l/s

4/13 Ventilation: the inlet grids and fan for compressor room ventilation 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. The maximum allowable pressure drop

over the cooling air ducts is 50 Pa. If this pressure drop is exceeded, a fan is needed at the

outlet of the cooling air ducts. The maximum air temperature at the compressor intake

opening is 40 °C.

For alternatives 1 and 3, the required ventilation capacity to limit the compressor room

temperature can be calculated as follows:

Qv = 0.92 N/dT

Qv = required ventilation capacity in m³/s

N = shaft input of compressor in kW

dT= temperature increase in compressor room in °C

For alternatives 2 and 4, the fan capacity should match the compressor fan capacity at a

pressure head equal to the pressure drop caused by the outlet cooling air ducts.

5 Position of control cubicle with monitoring panel.

6 Position of main cable entry. See section 7.1 for the recommended electric cables. See

section 2.3 for connecting the power supply.

7 Optional filters can be installed in the pressure line downstream of the air outlet valve, e.g.:

A DD filter for general-purpose filtration. The filter traps solid particles down to 1 micron. A

PD filter for filtration down to 0.01 micron. A PD filter must be installed downstream of a DD

filter. If odours are undesirable, a filter of the QD type should be installed downstream of the

PD filter. It is recommended to install by-pass pipes to isolate the filters during servicing.

8 Safety valve.

9 Position of the drain flexibles. The flexibles towards the drain collector must not dip into the

water of the drain collector.

10 Cooling air outlet, compressor elements.

11 Bodywork ventilation outlet.

12 Cooling air outlet, air cooler and dryer.

14 Data plate

Instruction book

2920 1521 00 24

2.3 Electrical connections

General

The electrical installation must correspond to the local codes. The mains supply and earthing lines

must be of suitable size. See section 7.1.

The installation must be earthed and protected by fuses in each phase. An isolating switch must be

installed near the compressor. Make sure that this switch is open to isolate the compressor from

the mains before carrying out any connection.

Connections

Skid - Tank-mounted - Twin

Connect the cable to terminals 1 and 3 (single-phase) or to terminals 1, 3 and 5 (3-phase) of pressure

switch (4-Fig. 1.10). Connect the earthing conductor to the earthing terminal. SF Twin have a

pressure switch for each compressor module; provide for each pressure switch separate supply

cables.

9820 3744 61

55103D

(1)

9820 3744 60

55104D

(1)

Single-phase 3-phase

Fig. 2.7 Service diagram, SF Skid - Tank-mounted – Twin

Text on Fig. 2.7

(1) Customer’s installation

Instruction book

2920 1521 00 25

SF Multi

Connect the supply cable to terminals L1, L2 and L3 of terminal strip (1X0-Fig. 1.14), connect the

neutral conductor to terminal (N) and the earthing conductor to the earthing bolt (1X3).

O- O-O- O- O-

-

-

9820 3748 01/2

55105D

(1)

(2)

(3)

(4)

(5)

(6)

(7) (8)

(9)

(10) (11) (12) (13) (14) (15) (16)

(17)

(5)

(18)

(19)

(20)

(21)

(22)

(23)

(24)

(25)

(26)

(27)

(28)

(3) (3) (3)

Instruction book

2920 1521 00 26

A1 Dryer (optional)

F1/11 Fuses

K11 Auxiliary contactor, dryer

K21/24 Contactors

M1/4 Motors

M5 Fan motor, air cooler

M6 Fan motor, bodywork

PT20 Pressure sensor, air outlet

Q21/24 Circuit breakers

S3 Emergency stop button

TSHH20 Temperature switch, air outlet protection

TT11 Temperature sensor, compressor element 1 (lowest element)

TT12 Temperature sensor, compressor element 2

TT13 Temperature sensor, compressor element 3

TT14 Temperature sensor, compressor element 4 (highest element)

TT90 Temperature sensor, dewpoint temperature

T1/2 Transformers

1X0 Terminal strip, mains supply

1X2 Terminal strip, dryer

1X3/6 Terminal strips

Fig. 2.8 Service diagram for SF Multi

Text on Fig. 2.8

(1) Customer’s installation

(2) Door

(3) Higher voltage: Y

Lower voltage: D

(4) Dryer

(5) Optional

(6) Supply of dryer

(7) All other voltages

(8) Marking of connectors 2X5 to 2X12

(9) Pressure transducer: pin configuration

(10) Temperature sensor, element 1

(11) Temperature sensor, element 2

(12) Temperature sensor, element 3

(13) Temperature sensor, element 4

(14) Temperature sensor, LAT dryer

(15) Pressure transducer, delivery air

(16) Temperature switch, delivery air

(17) FF only

(18) Emergency stop

(19) Remote start/ pr. Stop

(20) Overload motor M1

(21) Overload motor M2

(22) Overload motor M3

(23) Overload motor M4

(24) Fault EWD

(25) High temperature outlet

(26) Remote pressure set point

Selection: Open = set 1 Closed = set 2

(27) Remote emergency stop

(28) Auxiliary contacts

Instruction book

2920 1521 00 27

2.4 Pictographs

Fig. 2.9 shows examples of pictographs which may be used on the machine.

1 Automatic condensate drain

2 Manual condensate drain

3 Switch off voltage and depressurize compressor before

maintenance or repair

4 Before connecting compressor electrically, consult Instruction

book for motor rotation direction

5 Torques for steel (Fe) or brass (CuZn) bolts

6 Warning, voltage

7 Consult Instruction book before greasing

8 Warning, hot hose

Fig. 2.9 Pictographs

Instruction book

2920 1521 00 28

3 OPERATING INSTRUCTIONS

Safety precautions

The operator must apply all relevant safety precautions, including those mentioned in this book.

Outdoor/altitude operation

If the compressor is installed outdoors or if the air inlet temperature can be below 0 °C, precautions

must be taken. In this case, and also if operating at high altitude, consult Atlas Copco.

Before initial start-up

For SF Multi read section 8 to familiarize yourself with all regulator functions.

3.1 Initial start-up

1. Remove the red painted transport brackets:

- for SF Multi remove brackets (2-Fig. 5.1)

- for the other variants remove the brackets (one on each side of the frame)

2. For SF Multi check the settings of the overload relays (Q21, -22, -23, -24 - Fig. 1.14).

3. Connect the compressor electrically. See section 2.3.

4. Close the condensate drain valve: valve (1-Fig. 1.9 on SF Multi) or the valve underneath the air

receiver, if provided.

5. Switch on the voltage. Start and stop the compressor. On 3-phase compressors, check for

correct direction of rotation (arrows are provided on the motors). If the rotation direction is wrong,

switch off the voltage and reverse two incoming electric lines.

3.2 Starting

3.2.1 Multi

1. Open air outlet valve (3-Figs. 1.5/1.6).

2. Switch on the voltage.

3. Close condensate drain valve (1-Fig. 1.9).

4. Press start button (1-Fig. 1.11). The compressor starts running and automatic operation LED (8-

Fig. 1.11) lights up.

5. The regulator will automatically stop and start compressor modules, depending on the air

pressure.

6. On SF Full-Feature, the nominal pressure dewpoint will be reached after a few minutes.

3.2.2 Skid - Tank-mounted - Twin

1. Open air outlet valve (2-Figs. 1.2/1.4).

2. Switch on the voltage.

3. Check that the condensate drain valve underneath the air receiver (if installed) is closed.

4. Move switch (2-Fig. 1.10) to AUTO. The compressor starts running.

5. The drive motor(s) will automatically stop and start, depending on the air pressure.

Note: The maximum number of compressor starts is 30 per hour.

Instruction book

2920 1521 00 29

3.3 During operation

3.3.1 Multi

1. If the automatic operation LED (8-Fig. 1.11) is alight, the regulator is automatically controlling the

compressor modules (starting/stopping).

2. Check the readings on display (2-Fig. 1.11). In case of a warning or shut-down condition, see

section 8.3.

3. Check that condensate is discharged automatically from outlet (2-Figs. 1.9) during running.

Note: The dewpoint will deviate from nominal when the nominal conditions are exceeded. If the

dewpoint remains too high or unstable, consult section 6.

3.3.2 Skid - Tank-mounted - Twin

1. Check the starting and stopping pressures (1-Fig. 1.10).

2. Regularly open the drain valve underneath the air receiver for a few seconds, close the valve after

draining.

3.4 Stopping

3.4.1 Multi

1. Press stop button (9-Fig. 1.11).

2. Close air outlet valve (3-Figs. 1.5/1.6).

3. Switch off the voltage.

4. Open condensate drain valve (1-Fig. 1.9).

3.4.2 Skid - Tank-mounted - Twin

1. Move switch (2-Fig. 1.10) to OFF.

2. Close air outlet valve (2-Figs. 1.2/1.4).

3. Switch off the voltage.

4. Open the condensate drain valve underneath the air receiver (if provided) for a few seconds, close

the valve after draining.

3.5 Taking out of operation at end of compressor service life

1. Stop the compressor and close the air outlet valve.

2. Switch off the voltage and disconnect the compressor from the mains.

3. Open the condensate drain valve. Depressurize the compressor

4. Shut off and depressurize the part of the air net which is connected to the outlet valve. Disconnect

the compressor from the air net.

5. Disconnect the condensate piping from the local condensate drain system.

Instruction book

2920 1521 00 30

4 MAINTENANCE

Before carrying out any maintenance or repair:

1. Stop the compressor, switch off the voltage and open the isolating switch.

2. Close the air outlet valve (2-Figs. 1.2/1.4 or 3-Figs. 1.5/1.6) and open the manual drain valve: valve (1-

Fig. 1.9) on Multi or the valve underneath the air receiver, if provided.

4.1 Compressor drive motors

The motor bearings are greased for life.

4.2 Preventive maintenance schedule for the compressor

The schedule comprises a summary of the maintenance instructions. Read the respective section

before taking maintenance measures. The "longer interval" checks must also include the "shorter

interval" checks.

Carry out the service operations at the period or running hours mentioned below, whichever interval

comes first.

When servicing, replace all disengaged packings, e.g. gaskets, O-rings, washers.

Important

Use only authorized parts. Any damage or malfunction by the use of unauthorized parts is not

covered by Warranty or Product Liability.

Service plans on SF Multi

A number of service operations are grouped in plans, called Service plans I, A, B or D; see the

schedule below.

Each plan has a programmed time interval at which all service actions belonging to that plan are to be

carried out.

When reaching the interval, a message will appear on the screen indicating which Service plans are to

be carried out. After servicing, the intervals are to be reset. For detailed information, consult section

8.3.

Important

Always consult Atlas Copco in case any timer setting should be changed.

Instruction book

2920 1521 00 31

Period Running

hours

Service

Plan

See

section

See

notes

below

table

Operation

Daily -- -- 3.4 -- Drain condensate

" -- -- -- -- On SF Full-Feature, check dewpoint

Monthly 250 -- 5.1 1 Inspect air filter

3-monthly 500 -- -- -- Check pressure drop over Atlas Copco filters

(optional)

6-monthly -- -- 5.4 -- Operate safety valve

" -- -- -- -- Clean compressor

" -- -- -- -- On SF Full-Feature, brush or blow off the finned

surface of the condenser

" -- -- -- -- On SF Full-Feature, clean condensate trap

internally

Yearly -- -- 5.4 -- Test safety valve

" -- -- -- -- Have electrical components/shut-down switch

tested

" 2500 I 5.2 -- Check tension/condition of V-belt(s)

" 5000 A 5.1 -- Replace air filter

" 5000 A -- 2 Have ball valve mechanism of condensate trap

inspected

" 5000 A 5.2 -- Replace V-belt(s)

2-yearly 5000 B -- 2 Have orbiting scroll bearing greased

" 10000 B -- 2 Clean compressor element fan and duct. Clean

compressor element fins, have seals replaced

" 10000 B -- 2 Have pin crank bearings greased

Notes:

1. Check more frequently if operating in a dusty atmosphere. Check for cleanness and damage.

Replace a dirty or damaged filter by a new one.

2. Consult Atlas Copco.

Instruction book

2920 1521 00 32

5 ADJUSTMENTS AND SERVICING PROCEDURES

5.1 Air filter (1-Figs. 1.7/1.8)

1. Stop the compressor. Remove the filter cover and filter.

2. Clean the cover, if necessary. Discard damaged filters.

3. Fit a new filter and reinstall the cover.

5.2 Belt exchange/tensioning (Fig. 5.1)

In case of two belts, the belts must be replaced as a set, even if only one of them seems worn.

Use Atlas Copco belts only. The part number of the belt set is mentioned in the Parts list.

1. Loosen motor hold-down bolts (3).

2. Loosen the belt tension by screwing bolts (4) equally and take out the belts.

3. Install new belts in the grooves of the pulleys.

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. Make

sure that the pulleys remain aligned. The maximum out-of-line is:

- maximum parallel out-of-line: 0.5 mm

- maximum angular out-of-line: 0.5 degrees

5. Tighten bolts (3).

6. Check the belt tension after the first 500 running hours.

1 Belts

2 Transport brackets (2x - to be removed)

3 Motor hold-down bolts (4x)

4 Tensioning bolt

Fig. 5.1 Belt tensioning / transport fixation

5.3 Coolers

Keep the coolers clean to maintain cooling efficiency.

Remove any dirt from the coolers with a fibre brush. Never use a wire brush or metal objects. Then

clean by air jet in reverse direction of normal flow. If it should be necessary to wash the coolers with a

cleansing agent, consult Atlas Copco.

Instruction book

2920 1521 00 33

5.4 Safety valve

Operating

Operate the safety valve by unscrewing the knurled cap one or two turns. Retighten the cap.

Testing

The valve can be tested on a separate compressed air line. If the valve does not open at the pressure

marked on the valve, consult Atlas Copco.

Warning

No adjustments are allowed. Never run the compressor without safety valve.

Instruction book

2920 1521 00 34

6 PROBLEM SOLVING

Before carrying out any maintenance or repair:

1. Stop the compressor, switch off the voltage and open the isolating switch.

2. Close the air outlet valve (2-Figs. 1.2/1.4 or 3-Figs. 1.5/1.6) and open the manual drain valve: valve

(1-Fig. 1.9) on Multi or the valve underneath the air receiver, if provided.

1 Compressor does not start

a Loose connection

a Have electrical connections checked

b Receiver pressure too high

b Compressor will start when the net pressure drops to the minimum pressure

2 Safety valve blows

a Safety valve opens too soon

a Replace valve

3 Compressor capacity or pressure below normal

a Air consumption exceeds capacity of compressor

a Check equipment connected

b Choked air filter

b Remove and check filter. Replace if necessary

c Safety valve leaking

c Replace valve

d Drive belt(s) slipping

d Check condition of belt(s). Correct or replace as required

4 Compressor module overheating / compressor shut down by its air temperature switch

a Insufficient compressor cooling

a Improve ventilation of compressor room.

b Cooling fan out of order

b Check and correct

On SF Full-Feature also:

5 Pressure dewpoint too high

a Shortage of refrigerant

a Have circuit repaired or recharged

b Refrigerant compressor does not run

b See 7

c Condenser pressure is too high

c See 6

6 Condenser pressure too high or too low

a Fan control switch out of order

a Have switch replaced

b Condenser fan motor out of order

b Have fan motor inspected

c Ambient temperature too high

c Improve ventilation. If necessary, draw the cooling air from a cooler room

d Condenser externally clogged

d Clean condenser

7 Motor of refrigerant compressor stops or does not start

a Thermal protection of the motor has tripped

a Compressor will restart when the motor windings have cooled down

Instruction book

2920 1521 00 35

7 PRINCIPAL DATA

7.1 Electric cable size for SF1-8

Frequency Voltage SF1

single-

phase

SF2

single-

phase

SF2

3-phase

SF4

3-phase

SF6

3-phase

SF8

3-phase

IEC

50 Hz 230 V 2.5 mm² 2.5 mm² 2.5 mm² 2.5 mm² 2x 2.5

mm²

2x 2.5

mm²

50 Hz 400 V 2.5 mm² 2.5 mm² 2x 2.5

mm²

2x 2.5

mm²

60 Hz 380 V 2.5 mm² 2.5 mm² 2x 2.5

mm²

2x 2.5

mm²

50 Hz 500 V 2.5 mm² 2.5 mm² 2x 2.5

mm²

2x 2.5

mm²

CSA/UL

60 Hz 200/230 V AWG 12 AWG 12 AWG 12 AWG 10 2x AWG

12

2x AWG

10

60 Hz 440/460 V AWG 12 AWG 12 2x AWG

12

2x AWG

12

7.2 Electric cable size for SF 6-15 Multi

Frequency Voltage SF6

3-phase

SF8

3-phase

SF11

3-phase

SF15

3-phase

IEC

50 Hz 230 V 6 mm² 10 mm² 16 mm² 25 mm²

50 Hz 400 V 4 mm² 6 mm² 10 mm² 10 mm²

60 Hz 380 V 4 mm² 6 mm² 10 mm² 10 mm²

50 Hz 500 V 2.5 mm² 4 mm² 6 mm² 10 mm²

CSA/UL

60 Hz 200/230 V AWG 8 AWG 6 AWG 4 AWG 3

60 Hz 440/460 V AWG 10 AWG 10 AWG 8 AWG 6

60 Hz 575 V AWG 12 AWG 10 AWG 8 AWG 6

Instruction book

2920 1521 00 36

7.3 Overload relays for SF1-8

Frequency Voltage SF1

single-

phase

SF2

single-

phase

SF2

3-phase

SF4

3-phase

SF6

3-phase

SF8

3-phase

IEC

50 Hz 230 V 12 A 14.5 A 8.3 A 14 A 8.3 and 14 A 2x 14 A

50 Hz 400 V 4.8 A 8.2 A 4.8 and 8.2 A 2x 8.2 A

60 Hz 380 V 5.1 A 8.5 A 5.1 and 8.5 A 2x 8.5 A

50 Hz 500 V 3.8 A 6.5 A 3.8 and 6.5 A 2x 6.5 A

CSA/UL

60 Hz 230 V 10.2 A 14.7 A 9.2 A 15.3 A 9.2 and 15.3 A 2x 15.3 A

60 Hz 440/460 V 4.6 A 7.7 A 4.6 and 7.7 A 2x 7.7 A

Note: SF6 Twin have compressor modules of a different size, the first value is valid for the smaller

SF2 module and the second one is valid for the bigger SF4 module

7.4 Overload relays for SF6-15 Multi

Frequency Voltage SF6

3-phase

SF8

3-phase

SF11

3-phase

SF15

3-phase

IEC

50 Hz 230 V 8 and 14 A 2x 14 A 3x 14 A 4x 14 A

50 Hz 400 V 4.8 and 8 A 2x 8 A 3x 8 A 4x 8 A

60 Hz 380 V 5 and 8.5 A 2x 8.5 A 3x 8.5 A 4x 8.5 A

50 Hz 500 V 3.6 and 6.4 A 2x 6.4 A 3x 6.4 A 4x 6.4 A

CSA/UL

60 Hz 230 V 9 and 15 A 2x 15 A 3x 15 A 4x 15 A

60 Hz 440/460 V 4.5 and 7.5 A 2x 7.5 A 3x 7.5 A 4x 7.5 A

60 Hz 575 V 3.5 and 5.5 A 2x 5.5 A 3x 5.5 A 4x 5.5 A

Note: SF6 have compressor modules of a different size, the first value is valid for the smaller SF2

module (lower element) and the second one is valid for the bigger SF4 module (higher element)

Instruction book

2920 1521 00 37

7.5 Main fuses for SF1-8

Frequency Voltage SF1

single-

phase

SF2

single-

phase

SF2

3-phase

SF4

3-phase

SF6

3-phase

SF8

3-phase

IEC

50 Hz 230 V 20 A 20 A 20 A 20 A 2x 20 A 2x 20 A

50 Hz 400 V 20 A 20 A 2x 20 A 2x 20 A

60 Hz 380 V 20 A 20 A 2x 20 A 2x 20 A

50 Hz 500 V 20 A 20 A 2x 20 A 2x 20 A

CSA/UL

60 Hz 230 V 25 A 25 A 20 A 30 A 20 A 2x 30 A

60 Hz 440/460 V 15 A 15 A 15 A 2x 15 A

7.6 Main fuses for SF6-15 Multi

Frequency Voltage SF6

3-phase

SF8

3-phase

SF11

3-phase

SF15

3-phase

IEC

50 Hz 230 V 32 A 50 A 63 A 80 A

50 Hz 400 V 25 A 32 A 50 A 50 A

60 Hz 380 V 25 A 32 A 50 A 50 A

50 Hz 500 V 20 A 25 A 32 A 50 A

CSA/UL

60 Hz 230 V 45 A 60 A 80 A 110 A

60 Hz 440/460 V 25 A 30 A 45 A 60 A

60 Hz 575 V 20 A 25 A 35 A 45 A

7.7 Reference conditions/limitations

Reference conditions:

Air inlet pressure (absolute) 1 bar

Air inlet temperature 20 °C

Relative air humidity 0%

Nominal working pressure See values below

Limitations

Max. working pressure See values below

Max. ambient temperature 40 °C

Min. ambient temperature 0 °C

Instruction book

2920 1521 00 38

7.8 SF1-4 8bar 50 Hz 1)

Compressor type SF1 SF2 SF4

8 bar 8 bar 8 bar

Maximum working pressure bar(e) 8 8 8

Nominal working pressure bar(e) 7 7 7

Air temperature at outlet valve (Tank-

mounted/Twin), approx.

°C 30 32 40

Air temperature at outlet valve (Skid), approx. °C 38 45 65

Motor shaft speed r/min 2885 2885 2885

Shaft input kW 1.5 2.1 3.4

Sound pressure level dB(A) 65 67 68

7.9 SF2-4 10 bar 50 Hz 1)

Compressor type SF2 SF4

10 bar 10 bar

Maximum working pressure bar(e) 10 10

Nominal working pressure bar(e) 10 10

Air temperature at outlet valve (Tank-mounted/Twin), approx. °C 28 40

Air temperature at outlet valve (Skid), approx. °C 45 65

Motor shaft speed r/min 2885 2885

Shaft input kW 2.1 3.65

Sound pressure level dB(A) 67 68

7.10 SF1-4 100 psi 60 Hz 1)

Compressor type SF1 SF2 SF4

100 psi 100 psi 100 psi

Maximum working pressure bar(e) 8 8 8

Nominal working pressure bar(e) 7 7 7

Air temperature at outlet valve (Tank-

mounted/Twin), approx.

°C 30 32 40

Air temperature at outlet valve (Skid), approx. °C 38 45 65

Motor shaft speed r/min 1710 3485 3485

Shaft input kW 1.5 2.1 3.4

Sound pressure level dB(A) 65 67 68

7.11 SF2-4 145 psi 60 Hz 1)

Compressor type SF2 SF4

145 psi 145 psi

Maximum working pressure bar(e) 10 10

Nominal working pressure bar(e) 10 10

Air temperature at outlet valve (Tank-mounted/Twin), approx. °C 28 40

Air temperature at outlet valve (Skid), approx. °C 45 65

Motor shaft speed r/min 3485 3485

Shaft input kW 2.1 3.65

Sound pressure level dB(A) 67 68

Instruction book

2920 1521 00 39

7.12 SF6-15 Multi 8 bar 50 Hz 1)

Compressor type SF6 SF8 SF11 SF15

8 bar 8 bar 8 bar 8 bar

Maximum working pressure for SF Pack bar(e) 8 8 8 8

Maximum working pressure for SF Full-Feature bar(e) 7.75 7.75 7.75 7.75

Nominal working pressure bar(e) 7 7 7 7

Air temperature at outlet valve for SF Pack, approx. °C 26 28 30 32

Air temperature at outlet valve for SF Full-Feature, approx. °C 23 25 25 25

Motor shaft speed r/min 2885 2885 2885 2885

Shaft input kW 5.6 6.9 10.4 13.8

Sound pressure level dB(A) 61 62 60 63

For SF Full-Feature also:

Refrigerant type R134a R134a R134a R134a

Pressure dewpoint, approx 2) °C 3 3 3 3

7.13 SF6-15 Multi 10 bar 50 Hz 1)

Compressor type SF6 SF8 SF11 SF15

10 bar 10 bar 10 bar 10 bar

Maximum working pressure for SF Pack bar(e) 10 10 10 10

Maximum working pressure for SF Full-Feature bar(e) 9.75 9.75 9.75 9.75

Nominal working pressure for SF Pack bar(e) 10 10 10 10

Nominal working pressure for SF Full-Feature bar(e) 9.75 9.75 9.75 9.75

Air temperature at outlet valve for SF Pack, approx. °C 26 28 30 32

Air temperature at outlet valve for SF Full-Feature, approx. °C 25 25 25 25

Motor shaft speed r/min 2885 2885 2885 2885

Shaft input kW 5.9 7.5 11.3 15.0

Sound pressure level dB(A) 61 62 60 63

For SF Full-Feature also:

Refrigerant type R134a R134a R134a R134a

Pressure dewpoint, approx. 2) °C 3 3 3 3

7.14 SF6-15 Multi 100 psi 60 Hz 1)

Compressor type SF6 SF8 SF11 SF15

100 psi 100 psi 100 psi 100 psi

Maximum working pressure for SF Pack bar(e) 8 8 8 8

Maximum working pressure for SF Full-Feature bar(e) 7.75 7.75 7.75 7.75

Nominal working pressure bar(e) 7 7 7 7

Air temperature at outlet valve for SF Pack,

approx.

°C 26 28 29 30

Air temperature at outlet valve for SF Full-

Feature, approx.

°C 23 25 25 25

Motor shaft speed r/min 3495 3495 3495 3495

Shaft input SF Pack kW 5.7 7.1 10.7 14.2

Shaft input SF Full-Feature kW 5.8 7.2 10.8 14.4

Sound pressure level dB(A) 61 62 60 63

For SF Full-Feature also:

Refrigerant type R134a R134a R134a R134a

Pressure dewpoint, approx 2) °C 3 3 3 3

Instruction book

2920 1521 00 40

7.15 SF6-15 Multi 125 psi 60 Hz 1)

Compressor type SF6 SF8 SF11 SF15

125 psi 125 psi 125 psi 125 psi

Maximum working pressure for SF Pack bar(e) 9.1 9.1 9.1 9.1

Maximum working pressure for SF Full-Feature bar(e) 8.85 8.85 8.85 8.85

Nominal working pressure bar(e) 8.6 8.6 8.6 8.6

Air temperature at outlet valve for SF Pack, approx. °C 26 28 30 30

Air temperature at outlet valve for SF Full-Feature,

approx.

23 25 25 25

Motor shaft speed 3505 3505 3505 3505

Shaft input for SF Pack kW 5.8 7.4 11.0 14.7

Shaft input for SF Full-Feature kW 5.9 7.4 11.1 14.8

Sound pressure level dB(A) 61 62 60 63

For SF Full-Feature also:

Refrigerant type R134a R134a R134a R134a

Pressure dewpoint, approx. 2) °C 3 3 3 3

7.16 SF6-15 Multi 145 psi 60 Hz 1)

Compressor type SF6 SF8 SF11 SF15

145 psi 145 psi 145 psi 145 psi

Maximum working pressure for SF Pack bar(e) 10 10 10 10

Maximum working pressure for SF Full-Feature bar(e) 9.75 9.75 9.75 9.75

Nominal working pressure for SF Pack bar(e) 10 10 10 10

Nominal working pressure for SF Full-Feature bar(e) 9.75 9.75 9.75 9.75

Air temperature at outlet valve for SF Pack, approx. °C 26 28 30 32

Air temperature at outlet valve for SF Full-Feature,

approx.

23 25 25 25

Motor shaft speed 3505 3505 3505 3505

Shaft input kW 5.9 7.5 11.3 15.0

Sound pressure level dB(A) 61 62 60 63

For SF Full-Feature also:

Refrigerant type R134a R134a R134a R134a

Pressure dewpoint, approx. 2) °C 3 3 3 3

Footnotes chapter 7

1) At reference conditions

2) At 20 °C / 100% relative humidity

Instruction book

2920 1521 00 41

8 REGULATOR FUNCTIONS FOR SF MULTI

8.1 Menu-driven control programs

To facilitate programming and controlling the compressor, menu-driven programs are implemented in

the electronic module.

A simplified menu flow is shown in Fig. 8.1.

Fig. 8.1 Menu flow SF15 Workplace Full-Feature

Instruction book

2920 1521 00 42

8.1.1 Function of control programs

Program/Function Description

Main screen Shows in short the operation status of the compressor. It is the gateway

to all functions. See Fig. 8.2.

Status data Calling up the status of the compressor protection functions:

- shut-down

- service warning

- warning

Resetting of a shut-down and service condition.

Measured data Calling up:

- actually measured data

- status of some inputs such as the motor overload protection per

compressor module

Counters Calling up the:

- running hours

- regulator (module) hours

- running hours per compressor module

- number of starts per compressor module

- number of shut-downs per compressor module

Test Allows a display test.

Modify parameters Modifying the settings for:

- parameters (e.g. number of starts per day)

- protections (e.g. dewpoint temperature of dryer for Full-Feature

machines)

- service plans (see section 8.10)

- clock functions (automatic compressor start/stop/pressure band

commands)

- configuration (time, date, display language, …)

Service Calling up service plans and resetting the timers after carrying out the

service actions belonging to a plan. See section 8.13.

Saved data Calling up the saved data: last shut-down data

8.1.2 Main screen

When the voltage is switched on, the Main screen is shown automatically, showing in short the

operation status of the compressor.

Compressor Outlet 7.0 bar

Compressor Running ↓

Menu - - - -

F1 F2 F3

Fig. 8.2 Main screen, typical example

If the function keys or arrow keys are not used for some minutes, the display will automatically return

to the Main screen.

Whenever displayed on a submenu screen, press the key "Mainscreen" to return to the Main screen.

Instruction book

2920 1521 00 43

Line Indicates Remarks

1 Sensor which is active

and the actual reading

The unit for pressure can be bar, psi or kg/cm2 depending on the

programmed selection. The unit for temperature can be °C or °F.

See section 8.12.

2 - -

3 Compressor status

Examples:

- Compressor Off

- Compressor Running

3 Shut-down

If the unit is shut down, the regulator will automatically show a shut-

down message on the display (see section 8.3). It remains possible

to have a closer look at other parameters related to the shut-down

by means of the menus.

3 Service required Indicates that the unit needs servicing. Consult section 8.13 to find

out the exact cause for this message.

3 Sensor error

Indicates that a sensor is out of order:

- Outlet pressure transducer

- On Full-Feature compressors, the dewpoint sensor

Stop the compressor. Switch off the voltage and depressurize the

compressor. Check the sensor wiring. Replace the sensor or

transducer, if necessary.

3 Remote control Indicates that the compressor is set in remote control. Consult Atlas

Copco.

4 Functions of keys

below display

See section 1.5.7.

Symbols: Indicating the status of each compressor module

- indicating that the compressor module is available (ready to run)

▄ indicating that the compressor module is running

- (blinking) indicating that the compressor module is not available (due to

minimum stop time or too many starts)

4

* (blinking) indicating that the compressor module is shut down

Note

When more than one message needs to be displayed (e.g. both warning and service), the

messages will be displayed one after the other for 3 seconds.

Press key (F3) on the main screen to check which compressor module is running or stopped.

Element 1 Stopped

Element 2 Running

Element 3 Stopped ↓

Menu

F1 F2 F3

Fig. 8.3 Element status screen, typical example

Instruction book

2920 1521 00 44

8.1.3 Calling up other menus

Starting from the Main screen:

- Use the ↓ key for a quick look at the actual compressor status (see section 8.2)

- Press the key "Menu" (F1), the option "Status data" will be followed by a horizontal arrow:

- either press the tabulator key (5) to select this menu

- or use the ↓ key to scroll until the desired submenu is followed by a horizontal arrow and then

press the tabulator key (5) to select this menu

8.2 Quick look at actual compressor status

Procedure

1. Starting from the Main screen (see section 8.1.2), press the ↓ key: A screen similar to the one

below appears:

Automatic Operation

Local Control

Week Timer Active ↓

Mainscreen Help Extra

F1 F2 F3

Fig. 8.4 Example of an actual compressor status display

Line 1 indicates the automatic or manual operation status of the regulator:

"Automatic operation" means that the regulator automatically adapts the operation of the

compressor, i.e. starting and stopping the compressor modules according to the programmed

parameters.

Line 2 indicates whether the regulator operates in local control, remote control or LAN control mode:

"Local control" means that the start/stop buttons on the keyboard are activated.

"Remote control" means that these functions are controlled remotely. Consult Atlas Copco.

“LAN control” means that the compressor can be controlled by an ES controller.

Line 3 indicates whether the timer, which generates time-based start and stop commands is activated

or not. See section 8.11.

See section 1.5.7 for the functions of the keys "Mainscreen", "Help" and "Extra".

2. Press the ↓ key to get other data (actual compressor conditions of the compressor) as shown in

Fig. 8.1.

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8.3 Status data menu

The status data submenu gives information regarding the status of the compressor protection

functions (shut-down, service warning and warning) and allows resetting of a shut-down and service

condition.

Procedure

Starting from the Main screen (see section 8.1.2):

- Press the key "Menu" (F1), the option "Status data" will be followed by a horizontal arrow

- Press the tabulator key (5)

8.3.1 No message exists

In this case, LED (7) is out and the message on the display indicates that all conditions are normal

(Fig. 8.5):

All Conditions are OK

Menu Help

F1 F2 F3

Fig. 8.5 Example of a status data screen

8.3.2 A shut-down message exists

In case the compressor is shut down, LED (7) will blink. A shut-down message exists after an

emergency stop or after the temperature switch (TSHH20-Fig.2.8) has tripped (indicated on the

display as Aux. Equipment Overload).

In case of a shut-down due to an emergency stop, a screen similar to the one below will appear:

Emergency Stop Open

Shutdown Open

Menu *** *** Reset

F1 F2 F3

Fig. 8.6 Example of a status data screen

1. The indicators (***) are blinking. The screen shows that the compressor is shut down due to an

emergency stop. The contacts of the emergency switch are open. The setting of the shut-down is

open.

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2. It remains possible to scroll through other menus, e.g. to check the values of other parameters.

When returning to the Status data menu, the option "Shutdowns" will blink. This option can be

selected by pressing the tabulator key (5) to return to the shut-down screen (Fig. 8.6).

Shut-down reset

1. Switch off the voltage, depressurize the compressor and remedy the trouble. After remedying,

switch on the voltage and press the key "Reset" (F3).

2. Press the keys "Menu" and "Mainscreen" to return to the Main screen and restart the compressor

by means of button I.

8.3.3 A warning message exists

1. If a shut-down warning exists, LED (7) is alight. The Main screen will change into a screen similar

to the one below:

Compressor Outlet 7.0 bar

** Warning

**↓

Menu *** *** * - - -

F1 F2 F3

Fig. 8.7 Example of a warning screen

2. The indicators (***) are blinking and the message **Warning** appears alternately with the

messages indicating whether the compressor is in operation or not (Compressor Running or

Compressor Off).

3. Press the key "Menu" (F1) and the tabulator key (5) to select the Status Data menu, the option

"Protection" is blinking.

4. Scroll to this option and select it by pressing the tabulator key (5): option "Warnings" blinks. Scroll

to this option and select it by pressing the tabulator key (5). A screen similar to the one in Fig. 8.8

appears:

Element 1 80 °C

Warning Maximum 75 °C

Menu *** ***

F1 F2 F3

Fig. 8.8 Example of a warning screen

The screen shows that the temperature at the outlet of element 1 (80 °C) is too high.

5. Stop the compressor by means of button O and wait until the compressor has stopped.

6. Switch off the voltage, inspect the compressor and remedy.

7. The warning message will disappear automatically as soon as the warning condition disappears.

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8.3.4 A service warning message exists

1. LED (7) is alight and the main screen will change into a screen similar to that shown in Fig. 8.9.

Compressor Outlet 7.0 bar

** Service Required

**↓

Menu *** *** - - - -

F1 F2 F3

Fig. 8.9 Example of a service warning screen

2. The indicators (***) are blinking and the service warning message appears alternately with the

messages indicating whether the compressor is in operation or not (Compressor Running or

Compressor Off).

3. Press the key "Menu" (F1) and the tabulator key (5) to select the Status data menu: the option

"Service" is blinking.

4. Scroll to this option and select it by pressing the tabulator key (5), two options may blink:

"Inputs": option is not applicable.

"Plan": if a service plan interval is exceeded. See section 8.15.2.

5. Stop the compressor and switch off the voltage.

6. The service message was referring to "Plan": carry out the service actions related to the indicated

plans. Reset the timers of the related plans as described in section 8.13.

8.4 Measured data menu

Function

To call up information regarding the actually measured data and the status of some inputs such as the

motor overload protection per compressor module.

Procedure

1. Starting from the Main screen (see section 8.1.2):

- press the key "Menu" (F1)

- press the ↓ key until the option "Measured data" is followed by a horizontal arrow

- press the tabulator key (5) to activate the menu

Compressor Outlet 7.0 bar ┤

Element 1 75 °C

Element 2 70 °C ↓

Menu Extra

F1 F2 F3

Fig. 8.10 Example of a measured data screen

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2. By pressing the ↓ key, a number of actually measured data can be found (see Fig. 8.1).

3. If one of the sensors is linked to a shut-down, service or warning function, both the actually

measured value as well as the corresponding shut-down, warning or service level can be called up

by pressing the tabulator key (5).

8.5 Counters menu

Function

To allow the operator to call up the:

- running hours

- regulator (module) hours (the hours the module has been under tension)

- running hours per compressor module

- starts per compressor module

- shutdowns per compressor module

Procedure

1. Starting from the Main screen (see section 8.1.2):

- press the key "Menu" (F1)

- press the ↓ key until the option "Counters" is followed by a horizontal arrow

- press the tabulator key (5) to activate the menu

2. By pressing the ↓ key, the above-mentioned data can be found (see also Fig. 8.1).

8.6 Test menu

Function

To carry out a display test, i.e. to check whether the display and LEDs are still intact.

Procedure

1. Starting from the Main screen (see section 8.1.2):

- press the key "Menu" (F1)

- press the ↓ key until the option "Test" is followed by a horizontal arrow

- press the tabulator key (5) to activate the menu

2. The option "Display test" will be followed by a horizontal arrow.

3. After pressing the tabulator key (5), the regulator will generate a series of patterns on the display

which enable the operator to check that each pixel still functions normally; at the same time the

LEDs are lit.

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8.7 Modify parameters menu

Function

The menu allows the operator to program:

- Parameters, see section 8.8.

- Protections settings, see section 8.9.

- Service plan settings, see section 8.10.

- Clock function settings, see section 8.11.

- Configuration settings, see section 8.12.

8.8 Modifying parameters

Function

To modify a number of parameters as mentioned below and in Fig. 8.1.

- Pressure Band 1 High

- Pressure Band 1 Low

- Pressure Band 2 High

- Pressure Band 2 Low

- Number Of Starts/Day (per compressor module)

- Minimum Stop Time (i.e. the time period during which the compressor, if stopped automatically,

remains stopped whatever happens with the air net pressure)

- Power recovery time (if automatic restart after voltage failure is activated) 3)

- Restart delay (can be programmed, allowing e.g. compressors to be restarted one after the other)

- Time to next start (time between the starting of two compressor modules)

- Time to next stop (time between the stopping of two compressor modules during regulation)

Procedure

1. Starting from the Main screen (see section 8.1.2):

- press the key "Menu" (F1)

- press the ↓ key until the option "Modify Parameters" is followed by a horizontal arrow

- press the tabulator key (5) to activate the menu

2. The first option ("Parameters") will be followed by a horizontal arrow.

3. Press the tabulator key (5): the first item ("Pressure Band 1 High") and its setting will appear.

4. Use the ↓ key to scroll until the parameter to be modified is followed by a horizontal arrow.

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8.8.1 Modifying the pressure bands

If desired, the operator can program two pressure bands (band 1 and band 2) with different pressure

settings. The settings for band 1 are indicated as "Pressure Band 1 High" and "Pressure Band 1

Low", the settings for band 2 are indicated as " Pressure Band 2 High " and " Pressure Band 2 Low ".

Example:

For pressure band 1:

- Pressure Band 1 Low: 6.8 bar

- Pressure Band 1 High: 7.8 bar

For pressure band 2:

- Pressure Band 2 Low: 5.5 bar

- Pressure Band 2 High: 6.5 bar

Procedure

1. Consult the section above to select the parameter Pressure Band 1 High:

Pressure Band 1 High 7.8 bar ┤

Pressure Band 1 Low 6.8 bar

Pressure Band 2 High 6.5 bar ↓

Menu Modify

F1 F2 F3

Fig. 8.11 Modify parameters menu

2. The screen shows that the current setting of Pressure Band 1 High is 7.8 bar(e). To modify this

setting, press the key "Modify" (F2):

Pressure Band 1 High 7.8 bar

Program Limits Cancel

F1 F2 F3

Fig. 8.12 Modify parameters menu

3. The key "Limits" (F2) can be used to find the limitations for the parameter. Use the ↓ or ↑ arrow

key to change the value.

4. Press the key "Program" (F1) to program the new setting or the key "Cancel" (F3) to cancel the

modification operation.

5. The procedure to modify the Pressure Band 1 Low is similar to the description above.

6. If required, repeat the procedure for the Pressure Band 2 High and Pressure Band 2 Low

(pressure band 2).

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8.9 Modifying protection settings

Function

1. To modify protection settings: warning ("Warning"), e.g. Dryer LAT (Low Ambient Temperature) on

Full-Feature machines

2. To check some compressor conditions, e.g. the status of the motor overload contacts per

compressor module. The list of parameters is shown in Fig. 8.1.

Note

Some parameters cannot be modified.

Procedure

1. Starting from the Main screen (see section 8.1.2):

- press the key "Menu" (F1)

- press the ↓ key until the option "Modify parameters" is followed by a horizontal arrow

- press the tabulator key (5) to activate the menu

2. Use the ↓ key to scroll until the option "Protections" is followed by a horizontal arrow.

3. Press the tabulator key (5): the first item ("Compressor outlet") and its value will appear.

4. Use the ↓ key to scroll until the parameter to be modified or checked is followed by a horizontal

arrow.

5. press the tabulator key (5) to select the parameter

8.9.1 Checking protections for compressor modules

1. Consult the section above to select the parameter Element 1:

Element 1 70 °C

Warning Maximum 75 °C

Back

F1 F2 F3

Fig. 8.13 Modify parameters menu

2. The screen shows that the current temperature is 70 °C and that the shut-down setting is 75 °C.

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8.9.2 Modifying protections for Dryer LAT on Full-Feature machines

1. Consult the section above to select the parameter Dryer LAT (Low Ambient Temperature):

Dryer LAT 10 °C

→

Warning Maximum 25 °C

↓

Back Modify

F1 F2 F3

Fig. 8.14 Modify parameters menu

2. The screen shows that the Dryer LAT is 10 °C and that the shut-down setting is 25 °C. To modify

this setting, press the key "Modify" (F2):

Dryer LAT 10 °C

Warning Maximum 25 °C

Program Limits Cancel

F1 F2 F3

Fig. 8.15 Modify parameters menu

3. The key "Limits" (F2) can be used to find the limitations for the parameter. Use the ↓ or ↑ arrow

key to change the value.

4. Press the key "Program" (F1) to program the new setting or the key "Cancel" (F3) to cancel the

modification operation.

Note:

The modifying procedure for other settings is similar. For some settings, a delay can be

programmed. See section 8.15.

8.10 Modifying service plans

Function

To modify the hour intervals for the Service plans.

Service plans

The service operations to be carried out are grouped in plans, called Service plan A, B, D or I. When

reaching an interval, a message will appear on the screen indicating which Service plans are to be

carried out.

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Important

Always consult Atlas Copco in case any timer setting should be changed. The intervals must not

exceed the periods below and must coincide logically.

Programmed service plan intervals

Service plans Intervals

Service plan I Each 2500 running hours

Service plan A Each 5000 running hours

Service plan B Each 10000 running hours

Service plan D Each 20000 running hours

Resulting service actions to be carried out

Service actions according to At

Service plan I 2500 running hours

Service plan I and A 5000 running hours

Service plan I, A and B 10000 running hours

Service plan I, A, B and D 20000 running hours

… …

Procedure

1. Starting from the Main screen (see section 8.1.2):

- press the key "Menu" (F1)

- press the ↓ key until the option "Modify parameters" is followed by a horizontal arrow

- press the tabulator key (5) to activate the menu

2. Use the ↓ key to scroll until the option "Service plan" is followed by a horizontal arrow.

3. Press the tabulator key (5): a screen similar to the one below will appear:

Service Timer

Running Hours →

1075 hrs

↓

Menu

F1 F2 F3

Fig. 8.16 Service menu

The screen shows the actual running hours (1075).

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4. Press the tabulator key (5): a screen similar to the one below will appear:

Service Timer

Level A

5000 hrs

↓

Menu Modify

F1 F2 F3

Fig. 8.17 Service plan menu

5. The screen indicates that the level for Service plan A is set at 5000 running hours.

6. Press the "Modify" key. The key "Limits" (F2) can be used to find the limitations for the parameter.

Use the ↓ or ↑ arrow key to modify the interval.

7. Press the key "Program" (F1) to program the new setting or the key "Cancel" (F3) to cancel the

modification operation.

8. The procedure to modify the Service plans B, D and I are carried out in a similar way. Press the ↓

key in Fig. 8.17 to find the other Service plans.

8.11 Programming Clock function

To program:

- time-based start/stop commands for the compressor

- time-based change-over commands for the net pressure band (see also section 8.8.1)

8.11.1 Programming start/stop/pressure band commands

In this example, the compressor will be programmed as follows:

- On Monday at 06:15 starting in pressure band 1

- On Friday at 18:00 changing over to pressure band 2

- On Saturday at 18:00 stopping

1. Starting from the Main screen (see section 8.1.2):

- press the key "Menu" (F1)

- press the ↓ key until the option "Modify parameters" is followed by a horizontal arrow

- press the tabulator key (5) to activate the menu

2. Use the ↓ key to scroll until the option "Clock function" is followed by a horizontal arrow. Press the

tabulator key (5), following screen appears:

Clock Function

Not activated

→

Menu Modify Delete

F1 F2 F3

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3. Press the tabulator key (5), following screen appears:

Monday →

Tuesday

Wednesday

↓

Back Delete

F1 F2 F3

4. Use the ↓ or ↑ key until the day on which a command must be programmed is followed by a right

pointing arrow. Press the tabulator key (5), following screen appears:

--:-- -------------------------------------- ┤

--:-- --------------------------------------

--:-- --------------------------------------

↓

Back Modify Delete

F1 F2 F3

5. Press the key "Modify" (F2). The first two digits will flash. Use the ↓ or ↑ key to enter "06". Press

the tabulator key to jump to the following two dashes. Use the ↓ or ↑ key to enter "15". Press the

tabulator key to jump to the row of dashes. Use the ↓ or ↑ key to enter the command Start. Press

the key "Program" to program the command: 06:15 Start

6. Press the ↓ key: the symbol ┤ indicates that the second line is accessible. Press the key "Modify"

and modify this line to the following command line: 06:15 Pressure Band 1 in a similar way.

7. Press the key "Back" (F1) and scroll to "Friday":

Thursday

↑

Friday

→

Saturday

↓

Back Delete

F1 F2 F3

8. Programming the command to change over at 18 o’clock to Pressure Band 2 is carried out in a

similar way as described above.

9. Press the key "Back" (F1) and scroll to "Saturday". Programming the command to stop at 18

o’clock is carried out in a similar way as described above.

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8.11.2 To activate/deactivate the timer

1. Starting from the Main screen (see section 8.1.2):

- press the key "Menu" (F1)

- press the ↓ key until the option "Modify parameters" is followed by a horizontal arrow

- press the tabulator key (5) to activate the menu

2. Use the ↓ key to scroll until the option "Clock function" is followed by a horizontal arrow. Press the

tabulator key (5), following screen appears:

Clock Function

Not activated

→

Menu Modify Delete

F1 F2 F3

3. Press the key "Modify", "Not activated" starts blinking.

4. Press the ↓ key, "Not activated" changes into "Activated".

5. Press the key "Program".

Important:

1. It is necessary to program the start/stop/pressure band commands in successive order timewise,

e.g.:

07.30 start

07.30 pressure band 1

08.30 pressure band 2

17.00 stop

etc.

2. Make sure that the clock function is activated (indicated as "Activated"). If not, the programmed

start/stop commands will not be executed.

8.11.3 To modify a command

Suppose the command to stop the compressor on Saturday 18:00 is to be modified: stopping at 17

o'clock instead of 18 o'clock:

1. Starting from the Main screen (see section 8.1.2):

- press the key "Menu" (F1)

- press the ↓ key until the option "Modify parameters" is followed by a horizontal arrow

- press the tabulator key (5) to activate the menu

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2. Use the ↓ key to scroll until the option "Clock function" is followed by a horizontal arrow. Press the

tabulator key (5), following screen appears:

Clock Function

Not activated

→

Menu Modify Delete

F1 F2 F3

3. Press the tabulator key (5), following screen appears:

Monday →

Tuesday

Wednesday

↓

Menu Delete

F1 F2 F3

4. Scroll through the display until "Saturday" is followed by a horizontal arrow. Press the tabulator

key (5). If necessary, scroll through the compressor start/stop/pressure band commands until the

command to be modified is followed by symbol ┤ on the screen. Press the key "Modify", the first

two digits of the command start blinking. Modify as required using the scroll keys, i.e. in the

example above change "18" into "17" using the ↓ key.

5. If necessary, press the tabulator key (5) to go to the next field to be modified, the minutes

indication and the start/stop/pressure band indication.

6. Press the key "Program" to program the new command or the key "Cancel" to quit without

reprogramming.

8.11.4 To add a command

Adding a command at the end of an existing list

1. Starting from the Main screen (see section 8.1.2):

- press the key "Menu" (F1)

- press the ↓ key until the option "Modify parameters" is followed by a horizontal arrow

- press the tabulator key (5) to activate the menu

2. Use the ↓ key to scroll until the option "Clock function" is followed by a horizontal arrow. Press the

tabulator key (5), following screen appears:

Clock Function

Not activated

→

Menu Modify Delete

F1 F2 F3

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Suppose the command to stop the compressor at 18:00 must be added to the list of Monday:

- 06:15 start

- 06:15 pressure band 1

3. Press the tabulator key (5), following screen appears:

Monday →

Tuesday

Wednesday

↓

Menu Delete

F1 F2 F3

4. Scroll through the display until "Monday" is followed by a horizontal arrow. Press the tabulator key

(5). Scroll through the compressor start/stop/pressure band commands until the first empty

command line is indicated by symbol ┤ on the screen.

5. Press the key "Modify", the first two digits of the command start blinking. Enter "18:00 stop" using

the scroll keys ↓ or ↑ to modify a field and the tabulator key (5) to jump from one field to another.

6. Press the key "Program" to program the new command or the key "Cancel" to quit without

reprogramming.

Adding a command between two existing commands

1. Suppose the command 17:00 pressure band 2 must be added to following list:

- 06:00 start

- 06:00 pressure band 1

- 18:00 stop

2. The regulator does not allow to enter a new command which is situated timewise before the last

command in the list.

3. Scroll through the display until the command before which the new command must be entered is

followed by symbol ┤ (in the example above: 18:00 stop) and press the key "Modify". Change this

command to the new command (in the example above: 17:00 pressure band 2) and press the

"Program". Press the ↓ key, add the last command of the list (in the example above: 18:00 stop)

and press the key "Program".

8.11.5 To delete commands

1. Starting from the Main screen (see section 8.1.2):

- press the key "Menu" (F1)

- press the ↓ key until the option "Modify parameters" is followed by a horizontal arrow

- press the tabulator key (5) to activate the menu

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2. Use the ↓ key to scroll until the option "Clock function" is followed by a horizontal arrow. Press the

tabulator key (5), following screen appears:

Clock Function

Not activated

→

Menu Modify Delete

F1 F2 F3

Deleting all commands

Press the key "Delete" (F3) in the screen above. A question to confirm the deleting operation will

appear.

Deleting all commands related to a specific day

Scroll through the display until the desired day is followed by a horizontal arrow. Press the key

"Delete" (F3). A question to confirm the deleting operation will appear.

Deleting a specific start/stop/pressure band command

Scroll through the display until the desired start, stop, pressure band 1 or pressure band 2 command

line is followed by symbol ┤. Press the key "Delete" (F3). A question to confirm the deleting operation

will appear.

8.12 Configuration menu

Function

To reprogram a number of parameters. See Fig. 8.1.

Procedure

1. Starting from the Main screen (see section 8.1.2):

- press the key "Menu" (F1)

- press the ↓ key until the option "Modify parameters" is followed by a horizontal arrow

- press the tabulator key (5) to activate the menu

2. Use the ↓ key to scroll until the option "Configuration" is followed by a horizontal arrow.

3. Press the tabulator key (5): The first option shown is "C.C.M" (Compressor Control Mode). If

another option is desired, scroll through the display (using ↓ or ↑ keys) until the option is followed

by symbol ┤.

4. In case of option "Time", the first line indicates the actual setting, e.g. 14:30 followed by symbol ┤.

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5. If it is desired to modify the time, press the key "Modify". If not, press the key "Menu" to return to

the submenu.

6. After pressing the key "Modify", the first field (14) will blink. Modify the hours using the ↓ or ↑

keys. Then press the tabulator key (5) to go to the next field (i.e. 30). The setting of this field can

now be modified with the ↓ or ↑ keys.

7. The bottom line of the display will show two options:

- "Program" to program the new setting

- "Cancel" to cancel the new setting

8. Proceed in a similar way for the other parameters to be modified.

8.12.1 Programming compressor control modes

Compressor control modes

The compressor can be controlled locally, remotely or via a local area network (LAN – consult Atlas

Copco).

Procedure

1. Starting from the Main screen (see section 8.1.2):

- press the key "Menu" (F1)

- press the ↓ key until the option "Modify parameters" is followed by a horizontal arrow

- press the tabulator key (5) to activate the menu

2. Use the ↓ key to scroll until the option "Configuration" is followed by a horizontal arrow.

3. Press the tabulator key (5): The first option shown is "C.C.M." (Compressor Control Mode),

followed by the actual setting. Following screen is shown:

C.C.M. Local Control ┤

Pressure Band Selected Pressure Band 1

Node ID 31 ↓

Menu Modify

F1 F2 F3

Fig. 8.18 Compressor control mode menu

4. Press the key "Modify" and use ↓ or ↑ keys to select the desired control mode. Press the

"Program" key to program or the "Cancel" key to cancel the modification.

8.13 Service menu

Function

- To reset the service plans which are carried out.

- To check for both the next service plans to be carried out and to find which service plans were

carried out previously.

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Service plans

- Contact your Atlas Copco customer centre for the service actions related to these plans.

- Consult section 8.10 if any modification to the intervals should be required.

When the service plan interval is reached, a message will appear on the screen. See section 8.3.

Example

Programmed service plan intervals

Service plans Intervals

Service plan I Each 2500 running hours

Service plan A Each 5000 running hours

Service plan B Each 10000 running hours

Service plan D Each 20000 running hours

Resulting service actions to be carried out

Service actions according to At

Service plan I 2500 running hours

Service plan I and A 5000 running hours

Service plan I, A and B 10000 running hours

Service plan I, A, B and D 20000 running hours

… …

Procedure

1. Starting from the Main screen (see section 8.1.2):

- press the key "Menu" (F1)

- press the ↓ key until the option "Service" is followed by a horizontal arrow

- press the tabulator key (5) to activate the menu

2. A screen similar to the one below appears:

Service Timer

Running Hours →

7971 hrs

↓

Menu

F1 F2 F3

Fig. 8.19 Service menu, typical example

The screen shows that the total compressor running time is 7971 hrs.

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3. Press the tabulator key (5):

Next Timer

Level ABI

10000 hrs

↓

Back Reset

F1 F2 F3

Fig. 8.20 Service menu, typical example

The screen shows that the next service plans to be carried out are plans A, B and I and that these

plans are to be carried out each 10000 running hours.

4. Press the ↓ key to find which service plans were carried out previously:

Previous Timer ↑

Level AI

5008 hrs

Back

F1 F2 F3

Fig. 8.21 Service menu, typical example

The screen shows that service plans A and I were carried out at 5008 running hours.

5. Stop the compressor, switch off the voltage and carry out the service operations related to plans

A, B and I.

6. Switch on the voltage and scroll to the service screen shown in Fig. 8.20. Press the "Reset"

button (F3) to reset the timer. Confirm the question for resetting.

Notes

- The "Reset" button only appears when the next Timer level is almost reached (from 400

running hours before elapsing of the service plan interval).

- After pressing the ↓ key in Fig. 8.19, the Life time hours are shown (i.e. the number of hours

elapsed since initial programming ex-factory). This counter is not taken into account.

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8.14 Saved data menu

Function

To call up some compressor data saved by the regulator. These data are:

- Last shut-down data

- Last emergency stop data

Procedure

1. Starting from the Main screen (see section 8.1.2):

- press the key "Menu" (F1)

- press the ↓ key until the option "Saved data" is followed by a horizontal arrow

- press the tabulator key (5) to activate the menu

2. The list of last shut-down cases is shown.

3. Scroll through the items to select the desired shut-down item.

4. Press the tabulator key (5) to find the date, time and other data reflecting the status of the

compressor at the last shut-down occurred.

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8.15 Programmable settings

8.15.1 Regulation settings

Minimum

setting

Nominal

setting

Maximum

setting

Number of motor starts starts/day 240 720 720

Minimum stop time 1) sec 5 5 30

Stop between 2 compressor

modules sec 2 2 5

Start between 2 compressor

modules sec 2 2 10

Power recovery time 3) sec 10 10 3600

Delay at restarting after

power recovery 3) sec 0 0 1200

Minimum pressure 2)

8 bar Pack bar(e) 4 7 7.9

8 bar Full-Feature bar(e) 4 6.8 7.7

10 bar Pack bar(e) 4 9 9.9

10 bar Full-Feature bar(e) 4 8.8 9.7

100 psi Pack bar(e) 4 7 7.9

100 psi Full-Feature bar(e) 4 6.8 7.7

125 psi Pack bar(e) 4 8.1 9

125 psi Full-Feature bar(e) 4 7.75 8.8

145 psi Pack bar(e) 4 9 9.9

145 psi Full-Feature bar(e) 4 8.8 9.7

Maximum pressure 2)

8 bar Pack bar(e) 4.1 8 8

8 bar Full-Feature bar(e) 4.1 7.8 7.8

10 bar Pack bar(e) 4.1 10 10

10 bar Full-Feature bar(e) 4.1 9.8 9.8

100 psi Pack bar(e) 4.1 8 8

100 psi Full-Feature bar(e) 4.1 7.8 7.8

125 psi Pack bar(e) 4.1 9.1 9.1

125 psi Full-Feature bar(e) 4.1 8.9 8.9

145 psi Pack bar(e) 4.1 10 10

145 psi Full-Feature bar(e) 4.1 9.8 9.8

For Full-Feature also 4)

Dewpoint warning

temperature °C 3 15 40

Delay at signal 5) sec 0 3 10

Delay at starting 6) sec 0 255 255

Instruction book

2920 1521 00 65

8.15.2 Service settings

Minimum

setting

Nominal

setting

Maximum

setting

Service Plan I hr 2000 2500 2500

Service Plan A hr 4000 5000 5000

Service Plan B hr 8000 10000 10000

Service Plan D hr 16000 20000 20000

Footnotes chapter 8

1) Once the compressor module is automatically stopped, it will remain stopped for the minimum

stop time, whatever happens with the air net pressure.

2) The regulator does not accept illogical settings, e.g. if the stopping pressure is programmed at 7.0

bar(e), the maximum limit for the starting pressure changes into 6.9 bar(e). The recommended

minimum pressure difference between starting and stopping is 0.6 bar.

3) Is only accessible if the automatic restart function is activated. The power recovery time (the

period within which the voltage must be restored to have an automatic restart) can be set between

10 and 3600 seconds. A delay at restarting can also be programmed, allowing e.g. compressors

to be restarted one after the other. To activate the automatic restart function, consult Atlas Copco.

4) Full-Feature version is the Pack version with integrated air dryer.

5) Is the time period during which the warning signal must exist before the warning message

appears.

6) Is the time period during which the warning signal is ignored after starting to allow the dryer to

reach the dewpoint temperature.

9 CONVERSION LIST OF SI UNITS INTO US/BRITISH UNITS

1 bar = 14.504 psi

1 g = 0.0353 oz

1 kg = 2.205 lb

1 km/h = 0.621 mile/h

1 kW = 1.341 hp (UK and US)

1 l = 0.264 US gal

1 l = 0.220 Imp (UK gal)

1 l = 0.0353 cu.ft

1 m = 3.281 ft

1 mm = 0.0394 in

1 m3/min = 35.315 cfm

1 mbar = 0.401 in water column

1 N = 0.225 lbf

1 Nm = 0.738 lbf.ft

X °C = (1.8X + 32) °F 1)

Footnotes chapter 9

1) A temperature difference of 1 °C = a temperature difference of 1.8 °F

Product: SF1-4 Skid and Tank-Mounted

SF6-8 Twin

SF6-15 Multi

Instructions for use of air receiver

1 This vessel can contain pressurized air; be ware of its potential danger in case of misuse.

2 The vessel shall only be used to store compressed air and shall not be subject to rapid fluctuation

of pressure.

3 This vessel shall only be used within the pressure and temperature limits stated on the data plate

and the testing report, which should be kept with care.

4 No alterations shall be made to this vessel by welding, drilling or any other mechanical methods

without written permission of the manufacturer.

5 Make sure that the vessel is complete with suitable and appropriate safety and control fittings and

replace them with new Atlas Copco ones (consult the parts list) if necessary.

The safety valve must be fitted directly to the vessel and the discharge capacity should be higher

than the air intake of the compressor. It should be set and leaded at a pressure of 11 bar.

6 Do not store the vessel near heating sources and inflammable substances and avoid storage of

the vessel in badly ventilated rooms.

7 Use vibration dampers to reduce the vibration during operation, which can cause failure.

Do not mount the vessel to the ground or fixed structures.

8 Drain condensate from the vessel daily, to prevent corrosion inside the vessel. During

maintenance, every 12 months, check for the presence of internal corrosion. Check more

frequently if the vessel is used with an oil-free compressor or when it is used in adverse conditions

(high humidity, presence of acids).

If corrosion is present, the minimum thickness is 3.45 mm for the shell and 3.4 mm for the head.

The legal checks have to be made in accordance with the local laws and rules where the vessel is

used.

PED (Pressure Equipment Directive)

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.

Part number Description PED Class

0830 1007 75 Safety valve IV

0830 1007 76 Safety valve IV

0830 1007 68 Safety valve IV

Overall Rating

The compressors are conform to PED smaller than or equal to category I.

Instruction book

2920 1521 00 67

Notes:

Instruction book

2920 1521 00 68

Notes:

Compressor type: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unit serial No. compressor: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Air dryer type: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Unit serial No. dryer: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Motor type: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Motor serial No.: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Delivery date: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . First start-up date: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Service Plan: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Owner's machine No.: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Selected lubricants

Compressor: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Capacity: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Bearing grease type, electric motor: . . . . . . . . . . . . . . . . . . . . . . . . .

Dryer gearbox . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Capacity . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Printed Matter Nos.

Atlas Copco compressor instruction book: . . . . . . . . . . . . . . . . . . . . Atlas Copco air dryer instruction book: . . . . . . . . . . . . . . . . . . . . . . . . . .

Atlas Copco compressor parts list: . . . . . . . . . . . . . . . . . . . . . . . . . . Atlas Copco air dryer parts list: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Atlas Copco logbook: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Local Atlas Copco Representative

Name: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Address: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Telephone: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Contact persons: Service: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

Telex:. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Parts: . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

E-mail . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

SAFETY PRECAUTIONS

T o be r ead attentively and acted accordingly befor e installing, operating or r epairing the unit.

These recommendations 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.

If necessary , install a suction duct. Never obstruct the air inlet. Care

shall be taken to minimize the entry of moisture with the inlet air .

4. The aspirated air shall be free from flammable fumes or vapours,

e.g. paint solvents, that can lead to internal fire or explosion.

5. Air -cooled units shall be installed in such a way that an adequate

flow of cooling air is available and that the exhausted air does not

recirculate to the inlet.

6. Arrange the air intake so that loose clothing of people cannot be

sucked in.

7. Ensure that the dischar ge pipe from the compressor to the aftercooler ,

air dryer or air net is free to expand under heat and that it is not in

contact with or close to flammable material.

8. No external force may be exerted on the air outlet valve; the connected

pipe must be free of strain.

9. If remote control is installed, the unit shall bear an obvious sign

reading:

DANGER: This machine is r emotely controlled and may star t

without warning.

As a further safeguard, persons switching on remotely controlled

units shall take adequate precautions to ensure that there is no one

checking or working on the machine. T o this end, a suitable notice

shall be af fixed to the start equipment.

10. On units with automatic start-stop system, a sign stating "This

machine may start without warning" shall be attached near the

instrument panel.

11. In multiple compressor systems manual valves shall be installed to

isolate each compressor . Non-return valves (check valves) shall not

be relied upon for isolating pressure systems.

12. Never remove or tamper with the safety devices, guards or insulations

fitted on the unit. Every pressure vessel or auxiliary installed outside

the unit to contain air above atmospheric pressure shall be protected

by a pressure-relieving device or devices as required.

13. Pipework or other parts with a temperature in excess of 80 degrees

celsius and which may be accidentally touched by personnel in normal

operation shall be guarded or insulated. Other high-temperature

pipework shall be clearly marked.

OWNERSHIP DATA

In addition to normal safety rules which should be observed with stationary

air compressors and equipment, the following safety directions and

precautions are of special importance.

When operating this unit, the operator must employ safe working practices

and observe all related local work safety requirements and ordinances.

The owner is responsible for maintaining the unit in a safe operating

condition. Parts and accessories shall be replaced if unsuitable for safe

operation.

Installation, operation, maintenance and repair shall only be performed

by authorized, trained, competent personnel.

Normal ratings (pressures, temperatures, time settings, etc.) shall be

durably marked.

Any modification on the compressor or air dryer shall only be performed

in agreement with Atlas Copco and under supervision of authorized,

competent personnel.

If any statement in this book, especially with regard to safety , does not

comply with local legislation, the stricter of the two shall apply.

These precautions are general and cover several machine types and

equipment; hence some statements may not apply to the unit(s) described

in this book.

Installation

Apart from general engineering practice in conformity with the local

safety regulations, the following directives are specially stressed:

1.A compressor or air dryer shall be lifted only with adequate equipment

in conformity with local safety rules.

Loose or pivoting parts shall be securely fastened before lifting. It is

strictly forbidden to dwell or stay in the risk zone under a lifted load.

Lifting acceleration and retardation shall be kept within safe limits.

W ear a safety helmet when working in the area of overhead or lifting

equipment.

2. Any blanking flanges, plugs, caps and desiccant bags shall be

removed before connecting up the pipes. Distribution pipes and

connections shall be of correct size and suitable for the working

pressure.

3. Place the unit where the ambient air is as cool and clean as possible.

2920 1377 03 1/2 (continued on inside of cover)

14. If the ground is not level or can be subject to variable inclination,

consult Atlas Copco.

15. The electrical connections shall correspond to the local codes. The

units shall be grounded and protected against short circuits by fuses.

Operation

1. Air hoses shall be of correct size and suitable for the working pressure.

Never use frayed, damaged or deteriorated hoses. Use only the correct

type and size of hose end fittings and connections. When blowing

through a hose or air line, ensure that the open end is held securely .

A free end will whip and may cause injury. Make sure that a hose is

fully depressurized before disconnecting it.

Never play with compressed air . Do not apply it to your skin or

direct an air stream at people. Never use it to clean dirt from your

clothes. When using it to clean equipment, do so with extreme caution

and use eye protection.

2. The compressor is not considered as capable of producing air of

breathing quality . For breathing air quality , the compressed air must

be adequately purified according to local legislation and standards.

3. Never operate the units when there is a possibility of taking in

flammable or toxic fumes.

4. Never operate the units at pressures below or in excess of their limit

ratings as indicated on the Principal Data sheet.

5. Keep all bodywork doors shut during operation. The doors may be

opened for short periods only, e.g. to carry out checks. W ear ear

protectors when opening a door .

6. People staying in environments or rooms where the sound pressure

level reaches or exceeds 90 dB(A) shall wear ear protectors.

7. Periodically check that:

a. All guards are in place and securely fastened

b. All hoses and/or pipes inside the unit are in good condition, secure

and not rubbing

c. There are no leaks

d. All fasteners are tight

e. All electrical leads are secure and in good order

f. Safety valves and other pressure-relief devices are not obstructed

by dirt or paint

g. Air outlet valve and air net, i.e. pipes, couplings, manifolds,

valves, hoses, etc. are in good repair , free of wear or abuse

8. If warm cooling air from compressors is used in air heating systems,

e.g. to warm up a workroom, take precautions against air pollution

and possible contamination of the breathing air .

9. Do not remove any of, or tamper with, the sound-damping material.

Maintenance

Maintenance and repair work shall only be carried out under supervision

of someone qualified for the job.

1. Use only the correct tools for maintenance and repair work.

2. Use only genuine spare parts.

3. All maintenance work, other than routine attention, shall only be

undertaken when the unit is stopped, the main power supply is

switched of f and the machine has cooled down. T ake positive

precaution to ensure that the unit cannot be started inadvertently .

In addition, a warning sign bearing a legend such as "work in

pr ogr ess; do not star t" shall be attached to the starting equipment.

4. Before removing any pressurized component, ef fectively isolate the

unit from all sources of pressure and relieve the entire system of

pressure.

5. Never use flammable solvents or carbon tetrachloride for cleaning

parts. T ake safety precautions against toxic vapours of cleaning

liquids.

6. Scrupulously observe cleanliness during maintenance and repair.

Keep dirt away by covering the parts and exposed openings with a

clean cloth, paper or tape.

7. Never weld or perform any operation involving heat near the oil

system. Oil tanks must be completely pur ged, e.g. by steam-cleaning,

before carrying out such operations.

Never weld on, or in any way modify, pressure vessels.

Whenever there is an indication or any suspicion that an internal

part of a machine is overheated, the machine shall be stopped but no

inspection covers shall be opened before suf ficient cooling time

has elapsed; this to avoid the risk of spontaneous ignition of the oil

vapour when air is admitted.

Never use a light source with open flame for inspecting the interior

of a machine, pressure vessel, etc.

8. Make sure that no tools, loose parts or rags are left in or on the unit.

9. Before clearing the unit for use after maintenance or overhaul, check

that operating pressures, temperatures and time settings are correct

and that the control and shut-down devices function correctly. If

removed, check that the coupling guard of the compressor drive shaft

has been reinstalled.

10. Every time the separator element is renewed, examine the dischar ge

pipe and the inside of the oil separator vessel for carbon deposits; if

excessive, the deposits should be removed.

11. Protect the motor , air filter, electrical and regulating components,

etc. to prevent moisture from entering them, e.g. when steam-cleaning.

12. Make sure that all sound-damping material, e.g. on the bodywork

and in the air inlet and outlet systems of the compressor , is in good

condition. If damaged, replace it by genuine Atlas Copco material

to prevent the sound pressure level from increasing.

13. Never use caustic solvents which can damage materials of the air

net, e.g. polycarbonate bowls.

14. The following safety precautions are stressed when handling

refrigerant:

a. Never inhale refrigerant vapours. Check that the working area

is adequately ventilated; if required, use breathing protection.

b. Always wear special gloves. In case of refrigerant contact with

the skin, rinse the skin with water . If liquid refrigerant contacts

the skin through clothing, never tear of f or remove the latter;

flush abundantly with fresh water over the clothing until all

refrigerant is flushed away; then seek medical first aid.

c. Always wear safety glasses.

15. Protect hands to avoid injury from hot machine parts, e.g. during

draining of oil.

Note: W ith stationary machine units driven by an internal combustion

engine, allowance has to be made for extra safety precautions, e.g. spark

arrestors, fuelling care, etc. Consult Atlas Copco.

All r esponsibility for any damage or injur y r esulting fr om neglecting

these pr ecautions, or by non-observance of ordinar y caution and due

car e r equir ed in handling, operating, maintenance or r epair, even if

not expressly mentioned in this book, will be disclaimed by Atlas

Copco.

SAFETY PRECAUTIONS (continued)

2920 1377 03 2/2