KAESER EPC 840-G Assembly And Operating Manual

Assembly and operating manual

1-stage piston compressor

EPC-G

No.: 9_5752 24 E

Manufacturer:

KAESER KOMPRESSOREN SE

96410 Coburg • PO Box 2143 • GERMANY • Tel. +49-(0)9561-6400 • Fax +49-(0)9561-640130

http://www.kaeser.com

/KKW/PEPC 2.04 en SBA-KOLBEN-AGGREGAT 1-STUFIG

20170303 120254

1 Regarding this document

1.1 Using this document ......................................................................................................... 1

1.2 Further documents ........................................................................................................... 1

1.3 Copyright .......................................................................................................................... 1

1.4 Symbols and labels .......................................................................................................... 1

1.4.1 Warnings ............................................................................................................. 1

1.4.2 Potential damage warnings ................................................................................ 2

1.4.3 Other alerts and their symbols ............................................................................ 2

2 Technical Specifications

2.1 Nameplate ........................................................................................................................ 4

2.2 Options ............................................................................................................................. 4

2.3 Mass ................................................................................................................................. 4

2.4 Compressor block ............................................................................................................ 5

2.5 Ambient conditions ........................................................................................................... 5

2.6 Ventilation ........................................................................................................................ 5

2.7 Pressure ........................................................................................................................... 6

2.8 Noise emission [dB(A)] ..................................................................................................... 6

2.9 Motor power and speed ................................................................................................... 7

2.10 Compressor oil recommendation ..................................................................................... 7

2.10.1 Compressor oil charge ........................................................................................ 8

2.11 Electrical connection ........................................................................................................ 8

2.11.1 Three-phase power supply ................................................................................. 8

2.11.2 Electrical connection data for oil level monitoring ............................................... 12

2.12 Mains conditions .............................................................................................................. 13

2.12.1 Supply conditions at 400V/3/50Hz ...................................................................... 13

2.13 Machine duty cycle ........................................................................................................... 13

3 Safety and Responsibility

3.1 Basic instructions ............................................................................................................. 15

3.2 Specified use .................................................................................................................... 15

3.3 Improper use .................................................................................................................... 15

3.4 User's responsibilities ....................................................................................................... 16

3.4.1 Observe statutory and universally accepted regulations .................................... 16

3.4.2 Determining personnel ........................................................................................ 16

3.5 Keeping to Inspection Schedules and Accident Prevention Regulations ......................... 16

3.6 Dangers ............................................................................................................................ 17

3.6.1 Safely dealing with sources of danger ................................................................ 17

3.6.2 Safe machine operation ...................................................................................... 19

3.6.3 Organisational Measures .................................................................................... 21

3.6.4 Danger Areas ...................................................................................................... 21

3.7 Safety devices .................................................................................................................. 22

3.8 Safety Signs ..................................................................................................................... 22

3.9 Information signs .............................................................................................................. 23

3.10 In emergency ................................................................................................................... 23

3.10.1 Correct fire fighting ............................................................................................. 23

3.10.2 Injury from handling compressor oil .................................................................... 24

3.11 Warranty ........................................................................................................................... 24

3.12 Environment protection .................................................................................................... 25

4 Design and Function

4.1 Outline of the machine ..................................................................................................... 26

4.1.1 Machine structure ............................................................................................... 26

4.1.2 Machine function ................................................................................................. 26

4.2 Options ............................................................................................................................. 27

4.2.1 Oil level monitoring ............................................................................................. 27

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4.2.2 Silenced air filter ................................................................................................. 27

4.2.3 Air filter with plastic casing .................................................................................. 27

4.2.4 Castors ............................................................................................................... 28

4.2.5 Screwable rubber pads for air receiver mounting ............................................... 28

4.2.6 Screwable rubber pads ....................................................................................... 29

4.3 Operating modes and control modes ............................................................................... 29

4.3.1 Machine operating modes .................................................................................. 29

4.3.2 External control unit ............................................................................................ 29

4.4 Safety devices .................................................................................................................. 30

4.4.1 Safety and regulating devices ............................................................................. 30

4.5 Accessories ...................................................................................................................... 31

5 Installation and Operating Conditions

5.1 Ensuring safety ................................................................................................................ 32

5.2 Installation conditions ....................................................................................................... 32

5.2.1 Determining location and clearances .................................................................. 32

5.2.2 Ensuring the machine room ventilation ............................................................... 33

5.2.3 Prevention of thermal problems .......................................................................... 34

5.2.4 Operating the machine in a compressed air network ......................................... 34

6 Installation

6.1 Ensuring safety ................................................................................................................ 35

6.2 Reporting Transport Damage ........................................................................................... 36

6.3 Fitting the rubber pads ..................................................................................................... 36

6.4 Replacing the air filter ...................................................................................................... 36

6.5 Connecting the machine with the compressed air network .............................................. 37

6.6 Installing the venting valve ............................................................................................... 37

6.7 Installation examples ........................................................................................................ 38

6.7.1 Safety and Control Devices ................................................................................ 38

6.7.2 Two machines with one air receiver ................................................................... 40

6.8 Connecting the machine to the power supply .................................................................. 40

6.9 Options ............................................................................................................................. 41

6.9.1 Oil level monitoring ............................................................................................. 41

6.9.2 Mounting the machine on an air receiver ............................................................ 44

6.9.3 Anchoring the Machine ....................................................................................... 44

6.10 Retrofitting the sound enclosure (accessory) ................................................................... 44

6.10.1 Dismantling the sound enclosure ........................................................................ 45

6.10.2 Fitting the sound enclosure ................................................................................. 45

7 Initial Start-up

7.1 Ensuring safety ................................................................................................................ 55

7.2 Instructions to be observed before commissioning or re-commissioning ......................... 56

7.3 Checking installation and operating conditions ................................................................ 56

7.4 Motor protection ............................................................................................................... 57

7.4.1 Motor protection setting by direct online starting ................................................ 57

7.4.2 Motor protection setting by star-delta starting ..................................................... 57

7.5 Checking the direction of rotation ..................................................................................... 58

7.6 Starting the machine for the first time .............................................................................. 58

7.7 Measuring the air receiver filling time ............................................................................... 58

8 Operation

8.1 Switching on and off ......................................................................................................... 59

8.1.1 Direct start .......................................................................................................... 59

8.1.2 Direct online start with solenoid valve ................................................................. 60

8.1.3 Star-delta start .................................................................................................... 60

Contents

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EPC-G No.: 9_5752 24 E

9 Fault Recognition and Rectification

9.1 Basic instructions ............................................................................................................. 62

9.2 Faults ............................................................................................................................... 62

10 Maintenance

10.1 Ensuring safety ................................................................................................................ 65

10.2 Following the maintenance plan ....................................................................................... 66

10.2.1 Logging maintenance work ................................................................................. 66

10.2.2 Regular maintenance tasks ................................................................................ 66

10.2.3 Compressor oil Change interval ......................................................................... 66

10.2.4 Regular service tasks ......................................................................................... 67

10.3 Maintaining the air cooler or fan cowl ............................................................................... 67

10.3.1 Cleaning the air cooler or fan cowl ..................................................................... 68

10.4 Air filter maintenance ....................................................................................................... 68

10.5 Air filter (sound damping) maintenance ........................................................................... 69

10.6 Air filter (plastic housing) maintenance ............................................................................ 70

10.7 Drive motor maintenance ................................................................................................. 71

10.8 Checking the oil level ....................................................................................................... 71

10.9 Topping up the compressor oil ......................................................................................... 71

10.10 Changing the compressor oil ........................................................................................... 72

10.11 Check the pressure relief valve ........................................................................................ 73

10.11.1 Pressure relief valves on the cylinder head, collecting pipe and air cooler ........ 73

10.12 Venting the machine (de-pressurising) ............................................................................ 74

10.13 Solenoid valve maintenance ............................................................................................ 75

10.13.1 Cleaning the solenoid valve ................................................................................ 76

10.13.2 Replacing the solenoid valve .............................................................................. 77

10.14 Cylinder head and valves ................................................................................................. 77

10.14.1 Checking cylinder head and valves .................................................................... 77

10.14.2 Cleaning the cylinder head and valves ............................................................... 78

10.14.3 Starting the machine and performing a trial run .................................................. 78

10.15 Documenting maintenance and service work .................................................................. 79

11 Spares, Operating Materials, Service

11.1 Note the nameplate .......................................................................................................... 80

11.2 Ordering consumable parts and operating fluids/materials .............................................. 80

11.3 KAESER AIR SERVICE ................................................................................................... 81

11.4 Replacement parts for service and repair ........................................................................ 81

12 Decommissioning, Storage and Transport

12.1 De-commissioning ............................................................................................................ 82

12.2 Packing ............................................................................................................................ 82

12.3 Storage ............................................................................................................................. 83

12.4 Transport .......................................................................................................................... 83

12.4.1 Safety .................................................................................................................. 83

12.4.2 Transport with a forklift truck ............................................................................... 83

12.4.3 Transport with a crane ........................................................................................ 83

12.5 Disposal ........................................................................................................................... 84

13 Annex

13.1 Pipeline and instrument flow diagram (P&I diagram) ....................................................... 85

13.2 Dimensional Drawing ....................................................................................................... 88

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Fig. 1 Location of safety signs .............................................................................................................. 22

Fig. 2 Machine overview ....................................................................................................................... 26

Fig. 3 Option C5: Oil level monitoring ................................................................................................... 27

Fig. 4 Option H9: Silenced air filter ....................................................................................................... 27

Fig. 5 Option H10: Air filter with plastic casing ..................................................................................... 28

Fig. 6 Option H14: Castors ................................................................................................................... 28

Fig. 7 Option H20: Screwable rubber pads .......................................................................................... 28

Fig. 8 Option H29: Screwable rubber pads .......................................................................................... 29

Fig. 9 Recommended machine placement and dimensions [mm] ........................................................ 33

Fig. 10 Fitting the rubber pads ............................................................................................................... 36

Fig. 11 Replacing the air filter ................................................................................................................. 36

Fig. 12 Compressed pipework ................................................................................................................ 37

Fig. 13 Install the venting valve on-site .................................................................................................. 38

Fig. 14 Typical installation of safety and regulating devices .................................................................. 39

Fig. 15 Typical installation of two machines with one air receiver .......................................................... 40

Fig. 16 Option C5: Oil level monitoring ................................................................................................... 42

Fig. 17 Option C5: Changing the oil level monitoring setting ................................................................. 43

Fig. 18 Option H20: Screwable rubber pads .......................................................................................... 44

Fig. 19 Option H29: Securing the screwable rubber pads ...................................................................... 44

Fig. 20 Exchanging the base plate of the compressor block in an EPC 340-G ...................................... 46

Fig. 21 Fitting the EPC 340 sound enclosure ......................................................................................... 47

Fig. 22 Replacing the compressor block's base plate and modifying the air filter, EPC 440-G ............. 48

Fig. 23 Fitting the EPC 440 sound enclosure ......................................................................................... 49

Fig. 24 Modifying the air filter, EPC 630–G / EPC 840–G ...................................................................... 50

Fig. 25 Installing the sound enclosure, EPC 630–G / EPC 840–G ......................................................... 51

Fig. 26 Modifying the air filter, EPC 1100–G / EPC 1500–G .................................................................. 52

Fig. 27 Installing the sound enclosure, EPC 1100–G / EPC 1500–G ..................................................... 53

Fig. 28 Switching the compressed air station on and off ........................................................................ 59

Fig. 29 Cleaning the air cooler or fan cowl ............................................................................................. 68

Fig. 30 Air filter maintenance .................................................................................................................. 69

Fig. 31 Option H9: Air filter (sound damping) maintenance ................................................................... 69

Fig. 32 Option H10: Air filter (plastic housing) maintenance .................................................................. 70

Fig. 33 Checking the oil level ................................................................................................................. 71

Fig. 34 Topping up the compressor oil ................................................................................................... 72

Fig. 35 Changing the compressor oil ...................................................................................................... 73

Fig. 36 Checking the pressure relief valves on the cylinder head, collecting pipe and air cooler .......... 74

Fig. 37 Cleaning the solenoid valve ....................................................................................................... 76

Fig. 38 Replacing the solenoid valve ...................................................................................................... 77

Fig. 39 Consumable parts ...................................................................................................................... 80

Fig. 40 Transporting with a forklift truck ................................................................................................. 83

Fig. 41 Transporting with a crane ........................................................................................................... 84

List of Illustrations

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List of Illustrations

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Assembly and operating manual 1-stage piston compressor

EPC-G No.: 9_5752 24 E

Tab. 1 Danger levels and their definition (personal injury) .................................................................... 1

Tab. 2 Danger levels and their definition (damage to property) ............................................................ 2

Tab. 3 Nameplate .................................................................................................................................. 4

Tab. 4 Options ....................................................................................................................................... 4

Tab. 5 Mass ........................................................................................................................................... 4

Tab. 6 Compressor block ...................................................................................................................... 5

Tab. 7 Ambient conditions ..................................................................................................................... 5

Tab. 8 Ventilation ................................................................................................................................... 5

Tab. 9 Cylinder relief valve - pressure data ........................................................................................... 6

Tab. 10 Collecting pipe relief valve setting .............................................................................................. 6

Tab. 11 Noise emission [dB(A)] ............................................................................................................... 6

Tab. 12 Motor power and speed .............................................................................................................. 7

Tab. 13 Permissible starting frequency ................................................................................................... 7

Tab. 14 Compressor oil recommendation ............................................................................................... 8

Tab. 15 Compressor oil charge ............................................................................................................... 8

Tab. 16 Supply details 230V / 3 / 50Hz ................................................................................................... 9

Tab. 17 Supply details 400V / 3 / 50Hz ................................................................................................... 10

Tab. 18 Supply details 500V / 3 / 50Hz ................................................................................................... 10

Tab. 19 Supply details 690V / 3 / 50Hz ................................................................................................... 10

Tab. 20 Supply details 230V / 3 / 60Hz ................................................................................................... 11

Tab. 21 Supply details 380V / 3 / 60Hz ................................................................................................... 11

Tab. 22 Supply details 440V / 3 / 60Hz ................................................................................................... 12

Tab. 23 Supply details 460V / 3 / 60Hz ................................................................................................... 12

Tab. 24 Option C5: Connection data for oil level monitoring ................................................................... 12

Tab. 25 Network impedance .................................................................................................................... 13

Tab. 26 Machine duty cycle ..................................................................................................................... 14

Tab. 27 Danger Areas ............................................................................................................................. 21

Tab. 28 Safety Signs ............................................................................................................................... 22

Tab. 29 Information signs ........................................................................................................................ 23

Tab. 30 Option C5: Oil level monitoring factory setting ........................................................................... 42

Tab. 31 Re-commissioning after storage ................................................................................................. 56

Tab. 32 Check list of installation conditions ............................................................................................. 56

Tab. 33 Air receiver filling time ................................................................................................................ 58

Tab. 34 Faults and remedies ................................................................................................................... 62

Tab. 35 Regular maintenance tasks ........................................................................................................ 66

Tab. 36 Compressor oil Change intervals ............................................................................................... 67

Tab. 37 Regular service tasks ................................................................................................................. 67

Tab. 38 Tightening torque for cylinder head screws ................................................................................ 78

Tab. 39 Logged maintenance tasks ........................................................................................................ 79

Tab. 40 Consumable parts ...................................................................................................................... 80

List of Tables

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List of Tables

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Assembly and operating manual 1-stage piston compressor

EPC-G No.: 9_5752 24 E

1 Regarding this document

1.1 Using this document

This document, hereafter called the service manual, contains important information about all life

phases of the machine.

The operating manual is a component of the product. It describes the machine as it was at the time

of first delivery after manufacture.

➤ Keep the operating manual in a safe place throughout the life of the machine.

➤ Supply any successive owner or user with this operating manual.

➤ Please insert any amendment or revision of the operating manual sent to you.

➤ Enter details from the machine nameplate and individual items of equipment in the table in

chapter 2.

1.2 Further documents

Included with this operating manual are additional documents intended to assist in the safe opera‐

tion of the machine:

■ Installation declaration according to applicable directives.

Missing documents can be requested from KAESER.

➤ Make sure all documents are complete and observe the instructions contained in them.

➤ Make sure you provide the data from the nameplate when ordering documents.

1.3 Copyright

This operating manual is protected by copyright. Any queries regarding the use or duplication of

this documentation should be referred to KAESER. Correct use of information will be fully suppor‐

ted.

1.4 Symbols and labels

➤ Please note the symbols and labels used in this document.

1.4.1 Warnings

Warning notices indicate dangers that may result in injury when disregarded.

Warning notices indicate three levels of danger identified by the corresponding signal word:

Signal term Meaning Consequences of non-compliance

DANGER Warns of an imminent threat of danger Will result in death or severe injury

WARNING Warns of possible danger May result in death or severe injury

CAUTION Warns of a potentially dangerous situation May result in a moderate physical injury

Tab. 1 Danger levels and their definition (personal injury)

Warning notices preceding a chapter apply to the entire chapter, including all sub-sections.

1 Regarding this document

1.1 Using this document

No.: 9_5752 24 E

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Example:

DANGER

These show the kind of danger and its source.

The possible consequences of ignoring a warning are shown here.

If you ignore the warning notice, the "DANGER" signal word indicates a lethal or severe in‐

jury will occur.

➤ The measures required to protect yourself from danger are shown here.

Warning notes referring to a sub-section or the subsequent action are integrated into the procedure

and numbered as an action.

Example:

1. WARNING!

These show the kind of danger and its source.

The possible consequences of ignoring a warning are shown here.

If you ignore the warning notice, the "WARNING" signal word indicates that a lethal or severe

injury may occur.

➤ The measures required to protect yourself from danger are shown here.

2. Always read and comply with warning instructions.

1.4.2 Potential damage warnings

Contrary to the warnings shown above, damage warnings do not indicate a potential personal in‐

jury.

Warning notices for damages are identified by their signal term.

Signal term Meaning Consequences of non-compliance

NOTE Warns of a potentially dangerous situation Damage to property is possible

Tab. 2 Danger levels and their definition (damage to property)

Example:

NOTICE

These show the kind of danger and its source.

Potential effects when ignoring the warning are indicated here.

➤ The protective measures against the damages are shown here.

➤ Carefully read and fully comply with warnings against damages.

1.4.3 Other alerts and their symbols

This symbol identifies particularly important information.

1 Regarding this document

1.4 Symbols and labels

2

Assembly and operating manual 1-stage piston compressor

EPC-G No.: 9_5752 24 E

Material Here you will find details on special tools, operating materials or spare parts.

Precondition Here you will find conditional requirements necessary to carry out the task.

Here conditions relevant to safety are named that will help you to avoid dangerous situations.

➤ This symbol denotes lists of actions comprising one stage of a task.

Operating instructions with several steps are numbered in the sequence of the operating steps.

Information relating to one option only are marked with an option code (e.g., H1 indicates that

this section applies only to machines with screw-in machine feet).

Information referring to potential problems are identified by a question mark.

The cause is named in the help text ...

➤ ... as is a solution.

This symbol identifies important information or measures regarding the protection of the envi‐

ronment.

Further information Further subjects are introduced here.

1 Regarding this document

1.4 Symbols and labels

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Option H1

2 Technical Specifications

2.1 Nameplate

The model designation and important technical information are given on the machine's nameplate.

➤ Enter here the nameplate data as a reference:

Feature Value

Reciprocating compressor

Material no.

Serial no.

Year of manufacture

Maximum working pressure

Free air delivery

Electrical connection

Synchronous speed

Rated power

Ambient temperature

Tab. 3 Nameplate

2.2 Options

The table contains a list of possible options.

➤ Enter options here as a reference.

Option Option code Provided?

Oil level monitoring C5

Silenced air filter H9

Air filter with plastic casing H10

Castors H14

Bolt-down rubber pads

for single air receiver mounting

H20

Bolt-down rubber pads H29

Tab. 4 Options

2.3 Mass

The values shown are maximum values. The actual weight depends on equipment fitted.

Compressor model Mass [kg]

EPC 340-G

40/95

1)

Machine with sound enclosure

2 Technical Specifications

2.1 Nameplate

4

Assembly and operating manual 1-stage piston compressor

EPC-G No.: 9_5752 24 E

Compressor model Mass [kg]

EPC 440-G

50/100

1)

EPC 630-G

70/130

1)

EPC 840-G

70/130

1)

EPC 1100-G

100/240

1)

EPC 1500-G

130/260

1)

Machine with sound enclosure

Tab. 5 Mass

2.4 Compressor block

Compressor block model Compressor model

Flow rate

1)

at 6 bar

[l/min]

Number of cylinders

KC 350 EPC 340-G 195 1

KC 400 EPC 440-G 280 2

KC 630 EPC 630-G 410 2

KC 840 EPC 840-G 590 2

KC 1100 EPC 1100-G 750 2

KC 1500 EPC 1500-G 1000 2

1)

Flow rate in accordance with ISO 1217:2009, Annex C

Tab. 6 Compressor block

2.5 Ambient conditions

Installation

Maximum eleva‐

tion AMSL

1)

[m]

1000

Permissible ambient tem‐

perature [°C]

5-35

1)

Higher altitudes are permissible only after consultation with the manufacturer.

Tab. 7 Ambient conditions

2.6 Ventilation

The values given are minimum guide values.

Compressor model

Inlet aperture (Z) [m

2

] Exhaust fan (A)

1)

[m

3

/h]

EPC 340-G 0.4 510

1)

Forced ventilation: Required air volume for exhaust fan at static compression 1 mbar (machine

in enclosed space without ducts and ΔT≙10 K)

2 Technical Specifications

2.4 Compressor block

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Compressor model

Inlet aperture (Z) [m

2

] Exhaust fan (A)

1)

[m

3

/h]

EPC 440-G 0.4 720

EPC 630-G 0.4 900

EPC 840-G 0.4 1200

EPC 1100-G 0.5 1650

EPC 1500-G 0.75 2250

1)

Forced ventilation: Required air volume for exhaust fan at static compression 1 mbar (machine

in enclosed space without ducts and ΔT≙10 K)

Tab. 8 Ventilation

2.7 Pressure

Cylinder relief valve

1)

Maximum

working overpres‐

sure [bar]

10

Pressure relief valve

activating pressure [bar]

14

1)

EPC 340-G / EPC 440-G

Tab. 9 Cylinder relief valve - pressure data

Pressure relief valve in the collecting pipe

1)

Maximum

working overpres‐

sure [bar]

10

Pressure relief valve

activating pressure [bar]

12.5

1)

EPC 630-G bis EPC 1500-G

Tab. 10 Collecting pipe relief valve setting

2.8 Noise emission [dB(A)]

Compressor model Sound pressure level [dB(A)]

EPC 340-G

64/54

1)

EPC 440-G

64/54

1)

EPC 630-G

75/67

1)

EPC 840-G

78/72

1)

EPC 1100-G

79/70

1)

Machine with sound enclosure

Noise pressure level in operation at maximum working gauge pressure as per ISO 2151 and the

basic standard ISO 9614-2, Operation at maximum working pressure, uncertainty: ±3 dB(A)

2 Technical Specifications

2.7 Pressure

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Assembly and operating manual 1-stage piston compressor

EPC-G No.: 9_5752 24 E

Compressor model Sound pressure level [dB(A)]

EPC 1500-G

80/74

1)

Machine with sound enclosure

Noise pressure level in operation at maximum working gauge pressure as per ISO 2151 and the

basic standard ISO 9614-2, Operation at maximum working pressure, uncertainty: ±3 dB(A)

Tab. 11 Noise emission [dB(A)]

2.9 Motor power and speed

➤ Read off the enclosure protection class from the motor nameplate and enter in the table.

Compressor model Rated pow‐

er [kW]

Rated speed

[min

-1

] (50 Hz)

Rated speed

[min

-1

] (60 Hz)

Enclosure pro‐

tection

EPC 340-G 1.7 1500 1800

EPC 440-G 2.4 1500 1800

EPC 630-G 3.0 1500 1800

EPC 840-G 4.0 1500 1800

EPC 1100-G 5.5 1500 1800

EPC 1500-G 7.5 1500 1800

Tab. 12 Motor power and speed

Permissible starting frequency

➤ The permissible starting frequency of the motor is listed in the table below:

Rated power [kW] Permissible starting frequency [1/h]

1.7 20

2.4 20

3.0 20

4.0 20

5.5 15

7.5 15

Tab. 13 Permissible starting frequency

2.10 Compressor oil recommendation

The standard compressor oil is SAE 5 W30 or VDL 150

For special applications FGP oil is used and the machine carries a sticker indicating this.

Information on ordering compressor oil is found in chapter 11.

2 Technical Specifications

2.9 Motor power and speed

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➤ Mark the oil that your compressor contains in the table below.

Standard oil Special oil

EPC 340/

EPC 440

EPC 630 –

EPC 1500

Oil type SAE 5 W30 VDL 150 FGP

Application Standard oil for all ap‐

plications except in

connection with food‐

stuff.

Standard oil for all ap‐

plications except in

connection with food‐

stuff. May contain

traces of silicone.

Specially for use in

compressors where the

air may come into con‐

tact with foodstuff.

Oil contained in my

compressor

Tab. 14 Compressor oil recommendation

2.10.1 Compressor oil charge

Compressor model Total charge [litres] Topping up volume [l]

(minimum–maximum)

EPC 340-G 0.2 0.1

EPC 440-G 1.1 0.25

EPC 630-G 1.4 0.22

EPC 840-G 1.24 0.22

EPC 1100-G 1.5 0.37

EPC 1500-G 1.5 0.37

Tab. 15 Compressor oil charge

2.11 Electrical connection

Basic requirements

The machine is designed in accordance with the conditions for an electrical power supply specified

in EN 60204-1 (IEC 60204-1) section 4.3.

If no other conditions are specified by the operator, the thresholds described in this standard must

be adhered to.

It is recommended that the user and the supplier reach an agreement on the basis of EN 60204-1,

Annex B.

Check and adjust for other deployment conditions before commissioning.

If the machine is supplied with a mains cable and a plug, the power socket may be fused at

the nominal current of the plug device.

2.11.1 Three-phase power supply

The machine requires a symmetrical three-phase power supply.

In a symmetrical three phase supply the phase angles and voltages are all the same.

This machine may only be supplied from an earthed TN or TT three-phase supply in which the

neutral point is earthed.

2 Technical Specifications

2.11 Electrical connection

8

Assembly and operating manual 1-stage piston compressor

EPC-G No.: 9_5752 24 E

The connection to an IT three-phase supply or a three-phase supply with one earthed phase is not

permitted.

Further information When connecting to a European 400V/3/50Hz rated voltage the requirements in chapter 2.12 are

also to be observed.

2.11.1.1 Power supply specifications

The following supply cable conductor cross sections and fusing (slow-blow class gG) are selected

according to German DIN VDE 0100 Part 430 (IEC 60364-4-43) and DIN VDE 0298-4:2013-06

standards for these conditions:

■ Multi-core copper conductors at an operating temperature up to 70 °C

■ Cable length <50 m

■ for 30 °C ambient temperature

■ wiring type C: without cable contact

■ Current carrying capacity: Table 3, column 11

(European Harmonisation Directive HD 60364-5-52:2011)

■ Bundled cables: Table 21,

─ Single layer on wall or floor

─ Spacing ≥ outside diameter

➤ For other application conditions, check and determine the supply diameters according to

DIN VDE 0100 and DIN VDE 0298-4:2013-06 or the local energy provider.

Other application conditions would include, for example:

■ Higher ambient temperature

■ Other cable installation method

■ Other cable bundling

■ Cable length >50 m

Mains frequency: 50Hz

Rated voltage: 230V±10% / 3 / 50Hz

EPC Current

drawn [A]

Direct start Star-delta start

Backup

fuse [A]

Supply ca‐

ble [mm

2

]

Backup

fuse [A]

Supply ca‐

ble [mm

2

]

340-G 6.9 ● 10 4 x 1.5 10 4 x 1.5

440-G 9.9 ● 16 4 x 2.5 16 4 x 2.5

630-G 11.8 ● 25 4 x 4 16 4 x 2.5

840-G 17.3 ○ 35 4 x 6 20 4 x 2.5

1100-G 21.0 ○ 50 4 x 10 25 4 x 4

1500-G 29.4 ○ 63 4 x 16 35 4 x 6

● Pressure switch

○ controller (START CONTROL)

Tab. 16 Supply details 230V / 3 / 50Hz

2 Technical Specifications

2.11 Electrical connection

No.: 9_5752 24 E

Assembly and operating manual 1-stage piston compressor

EPC-G

9

Rated voltage: 400V / 3 / 50Hz

EPC Current

drawn [A]

Direct start Star-delta start

Backup

fuse [A]

Supply ca‐

ble [mm

2

]

Backup

fuse [A]

Supply ca‐

ble [mm

2

]

340-G 4.0 ● 10 4 x 1.5 6 4 x 1.5

440-G 5.7 ● 10 4 x 1.5 10 4 x 1.5

630-G 6.8 ● 16 4 x 2.5 10 4 x 1.5

840-G 10.0 ● 20 4 x 2.5 16 4 x 2.5

1100-G 12.0 ● 25 4 x 4 16 4 x 2.5

1500-G 18.0 ○ 35 4 x 6 20 4 x 2.5

● Pressure switch

○ controller (START CONTROL)

Tab. 17 Supply details 400V / 3 / 50Hz

Rated voltage: 500V±10% / 3 / 50Hz

EPC Current

drawn [A]

Direct start Star-delta start

Backup

fuse [A]

Supply ca‐

ble [mm

2

]

Backup

fuse [A]

Supply ca‐

ble [mm

2

]

340-G 3.2 ● 10 4 x 1.5 6 4 x 1.5

440-G 4.4 ● 10 4 x 1.5 6 4 x 1.5

630-G 5.2 ● 10 4 x 1.5 6 4 x 1.5

840-G 8.0 ● 16 4 x 2.5 10 4 x 1.5

1100-G 9.6 ● 20 4 x 2.5 10 4 x 1.5

1500-G 14.4 ○ 35 4 x 6 16 4 x 2.5

● Pressure switch

○ controller (START CONTROL)

Tab. 18 Supply details 500V / 3 / 50Hz

Rated voltage: 690V±10% / 3 / 50Hz

EPC Current

drawn [A]

Direct start Star-delta start

Backup

fuse [A]

Supply ca‐

ble [mm

2

]

Backup

fuse [A]

Supply ca‐

ble [mm

2

]

340-G 1.8 ● 6 4 x 1.5 – –

440-G 3.3 ● 10 4 x 1.5 – –

630-G 3.9 ● 10 4 x 1.5 – –

840-G 5.8 ● 10 4 x 1.5 – –

1100-G 6.9 ● 16 4 x 1.5 – –

● Pressure switch

○ controller (START CONTROL)

2 Technical Specifications

2.11 Electrical connection

10

Assembly and operating manual 1-stage piston compressor

EPC-G No.: 9_5752 24 E

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KAESER EPC 840-G Assembly And Operating Manual

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