EKOM DK50 B Instrukcja obsługi

DK50 B

User manual

Руководство пользователя

Instrukcja obsługi

Návod na použitie

COMPRESSOR

КОМПРЕССОР

SPRĘŻARKA

KOMPRESOR

DK50 B

EKOM spol. s r. o.

Priemyselná 5031/18

SK-921 01 Piešťany

Slovak Republic

tel.: +421 33 7967255

fax: +421 33 7967223

www.ekom.sk

email: ekom@ekom.sk

DATE OF LAST REVISION

ДАТА ПОСЛЕДНЕЙ РЕДАКЦИИ

DATA OSTATNIEJ AKTUALIZACJI

DÁTUM POSLEDNEJ REVÍZIE

06/2023

NP-DK50 B-A-2_06-2023

112000504-000

CONTENTS .................................................................................................. 4

ОГЛАВЛЕНИЕ ............................................................................................. 28

SPIS TREŚCI ............................................................................................... 51

OBSAH ........................................................................................................ 75

CONTENTS

06/2023 5 NP-DK50 B-A-2_06-2023

CONTENTS

GENERAL INFORMATION ............................................................................................................ 6

1. CONFORMITY WITH THE REQUIREMENTS OF THE EUROPEAN UNION ................... 6

2. SYMBOLS ........................................................................................................................ 6

3. DEVICE USE ................................................................................................................... 7

4. GENERAL SAFETY INSTRUCTIONS .............................................................................. 7

5. STORAGE AND TRANSPORT CINDITIONS ................................................................... 9

PRODUCT DESCRIPTION .......................................................................................................... 10

6. VARIANTS ..................................................................................................................... 10

7. PRODUCT FUNCTION .................................................................................................. 10

TECHNICAL DATA ...................................................................................................................... 12

INSTALLATION ........................................................................................................................... 13

8. INSTALLATION CONDITIONS ...................................................................................... 13

9. INSTALATION CONDITIONS ........................................................................................ 14

10. PNEUMATIC CONNECTION ......................................................................................... 15

11. ELECTRICAL CONNECTION ........................................................................................ 15

12. COMMISSIONING ......................................................................................................... 16

13. ELECTRICAL DIAGRAMS ............................................................................................. 16

OPERATION ................................................................................................................................ 17

14. SWITCHING ON THE COMPRESSOR .......................................................................... 18

15. SWITCHING OFF THE COMPRESSOR ........................................................................ 18

PRODUCT MAINTENANCE ........................................................................................................ 19

16. PRODUCT MAINTENANCE ........................................................................................... 19

17. LONG-TERM SHUTDOWN ............................................................................................ 25

18. DISPOSAL OF DEVICE ................................................................................................. 25

TROUBLESHOOTING ................................................................................................................. 26

19. REPAIR SERVICE ......................................................................................................... 27

ANNEX ........................................................................................................................................ 98

20. INSTALLATION RECORD ............................................................................................. 98

GENERAL INFORMATION

NP-DK50 B-A-2_06-2023 6 06/2023

GENERAL INFORMATION

Carefully read this user manual before using the product and carefully store it for future reference.

The user manual aids in the proper use, including installation, operation and maintenance, of the

product.

The user manual corresponds to the configuration of the product and its compliance with applicable

safety and technical standards at the time of its printing. The manufacturer reserves all rights for the

protection of its configuration, processes and names.

The Slovak version represents the original version of the user manual. The translation of the user

manual is performed in accordance with the best available knowledge. The Slovak version is to be

used in the event of any uncertainties.

The user manual is original and the translation is performed with the best available knowledge.

1. CONFORMITY WITH THE REQUIREMENTS OF THE EUROPEAN UNION

This product conforms to the requirements of the European Union 2006/42/EC, 2014/29/EU,

2014/35/EU, 2014/30/EU, 2011/65/EU and is safe if used in compliance with the intended use and

if all safety instructions are followed.

User manual is in compliance with requirements of Directive 2006/42/EC.

2. SYMBOLS

The following symbols and marks are used in the User manual, on the device and its packaging:

General warning

Warning - risk of electric shock

Warning - compressor is controlled automatically

Warning - hot surface

General caution

Refer to instruction manual

CE – marking

Serial number

Article number

Protecting earthing

Terminal for ground connection

GENERAL INFORMATION

06/2023 7 NP-DK50 B-A-2_06-2023

Package handling label – fragile

Package handling label – this side up

Package handling label – keep dry

Package handling label – temperature limits

Package handling label – limited stacking

Package label – recyclable material

Manufacturer

3. DEVICE USE

3.1. Intended use

The compressor is used as source of clean oil-free compressed air intended to be used in industry

and laboratories, where parameters and properties of the compressed air are suitable.

The compressor is exclusively intended to compress air without content of explosive or chemically

unstable substances.

The compressor is intended for operation in clean and dry rooms.

3.2. Incorrect use

Contamination risk.

Air from the compressor is without additional treatment not suitable for breathing

and direct contact with food

Explosion risk.

The product is not intended for operation in rooms with explosion risk.

The compressor must not be used to compress aggressive gases.

The compressor must not be operated in premises with occurrence of flammable vapors.

The compressor must not be operated in other conditions as mentioned in Technical data.

Any other use of the product beyond the intended use is considered as incorrect use. The

manufacturer is not responsible for any damages or injuries as a result of incorrect use or

disobedience to instructions stated in this User manual. All risks shall be solely borne by the

user/operator.

4. GENERAL SAFETY INSTRUCTIONS

The product is designed and manufactured so that any risks connected with its use are minimized

and the product is safe for the user and surrounding when used according to the intended use and

the instructions stated below are followed.

GENERAL INFORMATION

NP-DK50 B-A-2_06-2023 8 06/2023

4.1. Required qualification of the personnel

• Each user must be trained by the manufacturer or an organization authorized by the

manufacturer or instructed on the device operation by other trained user.

• Installation, new settings, changes, extensions and repairs of the product may be performed by

the manufacturer or an organization authorized by the manufacturer (hereinafter qualified

technician).

- Otherwise the manufacturer is not responsible for safety, reliability and correct functioning

of the product.

4.2. General instructions

• When operating the compressor, all acts and local regulations valid in the place of use must be

observed. The operator and user are responsible for following the applicable regulations.

• Before every use, the user must check, if the device is functioning correctly and safely. Before

building the compressor in other devices, the supplier must assess, if the supplied air and

construction of the device comply with the requirements of the specified intended use. Taking

this into account, follow the product technical data. Assessment of conformity shall be performed

by the manufacturer – supplier of the final product.

4.3. Protection from dangerous voltage and pressure

• The equipment may only be connected to a properly installed socket connected to earth

(grounded).

• Before the product is plugged in, make sure that the mains voltage and frequency stated on the

product are the same as the power mains.

• Check for any damage to the connected compressed air system and electrical circuits before

use. Replace damaged pneumatic and electrical conductors immediately.

• Immediately disconnect the product from the mains (remove the power cord from the socket) in

hazardous situations or when a technical malfunction occurs.

• Never adjust or use the safety valve to release the air pressure in the air tank.

• Never adjust or use pressure relief valves to release air pressure from the device.

4.4. Original spare parts and accessories

• Only the use of original parts guarantees the safety of operating personnel and flawless operation

of the product itself. Only accessories and replacement parts specified in the technical

documentation or expressly approved by the manufacturer may be used.

• The warranty does not cover damage resulting from the use of other accessories and

replacement parts as specified or recommended by the manufacturer and the manufacturer has

no related liability.

GENERAL INFORMATION

06/2023 9 NP-DK50 B-A-2_06-2023

5. STORAGE AND TRANSPORT CINDITIONS

The compressor is shipped from the manufacturer in transport packaging. This protects the product

from damage during transport.

Potential for damage to pneumatic components.

The compressor must be transported only when all air has been vented. Before

moving or transporting the compressor, release all the air pressure from the tank

and pressure hoses, from dryer chambers and drain condensate from the tank

and from the condensate separator on the dryer.

Keep the original factory packaging in case the device needs to be returned Use

the original factory packaging during transport as it provides optimum protection

for the product. If it is necessary to return the product during the warranty period,

the manufacturer is not liable for damages caused by improper packaging.

The compressor is shipped in a vertical position and must be secured using

transport straps.

Protect the compressor from humid and dirty environments and extreme temperatures

during transport and storage. Do not store near any volatile chemical substances.

If not, please dispose of the original packaging material in an environmentally-friendly

way. The packaging cardboard can be recycled with old paper.

5.1. Ambient conditions

Products may only be stored and transported in vehicles that are free of any traces of volatile

chemicals under the following climactic conditions:

Temperature

–25°C to +55°C, 24 h at up to +70°C

Relative humidity

max. 90% (non-condensing)

Storing or shipping the equipment in any conditions other than those specified below is

prohibited.

PRODUCT DESCRIPTION

NP-DK50 B-A-2_06-2023 10 06/2023

PRODUCT DESCRIPTION

6. VARIANTS

The compressor is manufactured according to its intended application in the following variants:

DK50 B

compressor on base for stand-alone room installations

DK50 BS

compressor in cabinet with effective noise dampening for room

installations

DK50 B

DK50 BS

7. PRODUCT FUNCTION

7.1. Compressor

The compressor (1) draws in air through a filter (8) and compresses it through a check valve (3) into

an air tank (2). The connected apparatus draws the compressed air from the air tank until the

pressure drops to a default preset level on the air-pressure switch (4) switching the compressor on.

The compressor again compresses air into the nozzle until the maximum pressure is reached and

the compressor switches off. After compressor aggregate is switched off, pressure hose shall be

pressure-release solenoid valve (13). Safety valve (5) prevents the pressure in air chamber from

rising above the maximal allowed value. The time of work of a compressor is recorded on an

operation clock. The drain valve (7) releases the condensate from the air nozzle. Compressed, clean

air free from oil traces is stored in the air tank ready for use.

7.2. Compressor cabinet

The soundproof box is compact yet allows sufficient exchange of cooling air. It can be placed in a

dentist’s office. The ventilator under the aggregate of a compressor provides cooling of compressor

and it is in operation at the same time with an engine of the compressor. After prolonged use the

temperature in the case may rise above 40°C, causing the cooling fan blower to automatically turn

on. After cooling the case area to 32°C the fan blower turns off automatically.

PRODUCT DESCRIPTION

06/2023 11 NP-DK50 B-A-2_06-2023

Risk of compressor overheating.

Make sure that there are no obstacles at the cooling air inlet into the cabinet

(around the bottom part of the cabinet) and at the hot air outlet on the top back

side of the cabinet.

If the compressor is placed on a soft floor, e.g. carpet, create space between the

base and the floor or the cabinet and the floor, e.g. underlay the footings with

hard pads to ensure sufficient cooling of the compressor.

Fig. 1: DK50 B - Compressor

Description to figure:

1 Air pump

2 Air tank

3 Non-return valve

4 Pressure switch

5 Safety valve

6 Pressure gauge

7 Outlet valve

8 Inlet filter

9 Solenoid valve

TECHNICAL DATA

NP-DK50 B-A-2_06-2023 12 06/2023

TECHNICAL DATA

Compressors are designed for operation in dry, ventilated and dust-free indoor rooms under the

following climactic conditions:

Temperature

+5°C to +40°C

Relative humidity

max. 70%

Working pressure 9.5 – 11.5 bar

DK50 B

DK50 BS

Rated voltage

Frequency

V, Hz

230, 50

230, 60 a)

230, 50

230, 60 a)

Capacity at 10 bar

l/min

50

Working pressure

bar

9.5 – 11.5

Rated current

A

3.5

Motor power

kW

0.55

Air tank volume

l

4

Maximum operating

pressure of safety

valve

bar

12

Noise level at 5 bar

(LpA)

dB

≤65

≤45

Operating mode

%

Intermittent

S 3-50

Intermittent

S 3-50

Dimensions (net)

w x d x h

mm

290x430x490

380x525x575

Net weight

kg

35

47

Net weight in

packaging

kg

37

49

a) Specify the compressor version when ordering

FAD correction of capacity for altitude

Capacity given in the form of FAD („Free Air Delivery“) applies to the following conditions:

Altitude

0 m.n.m.

Temperature

20°C

Atmospheric pressure

101325 Pa

Relative humidity

0%

To calculate FAD compressor capacity in dependence on altitude, it is necessary to apply correction

factor according to the following table:

Altitude [m.n.m.]

0 -1500

1501 - 2500

2501 - 3500

3501 - 4500

FAD correction factor

1

0.80

0.71

0.60

INSTALLATION

06/2023 13 NP-DK50 B-A-2_06-2023

INSTALLATION

Risk of incorrect installation.

Only a qualified technician may install the compressor and place it into operation

for the first time. Their duty is to train operating personnel on the use and

maintenance of the equipment. An entry is made in the equipment installation

record to certify installation and operator training.

8. INSTALLATION CONDITIONS

• The compressor may only be installed and operating in dry, well-ventilated and clean

environments under the conditions specified in the Technical Data chapter.

Risk of damage to the device.

The equipment may not be operated outdoors or in otherwise wet or damp

environments.

Risk of explosion.

Do not use the equipment in the presence of explosive gases, dust or

combustible liquids.

Burn or fire hazard! Caution! Hot surface!

Portions of the compressor may be hot and reach hazardous temperatures

during compressor operation that may harm materials or operating staff.

You may notice a “new product” odour when you first place the product into

service (for a short period of time). This odour is temporary and does not impede

the normal use of the product. Ensure the space is properly ventilated after

installation.

• The compressor must be installed so that it is accessible at all times for operating and

maintenance. Please ensure that the nameplate on the device is readily accessible.

• The compressor must stand on a flat, sufficiently stable base (be aware of the weight of the

compressor, see the Technical Data chapter).

• Before connecting the compressor to equipment, the supplier must confirm that it meets all

requirements for its use. Refer to the technical data of the product for this purpose. When a unit

is to be built-in, classification and evaluation of compatibility must be done by the manufacturer

or supplier of the product to be used.

• Any use other than that described in this manual is not covered by the guarantee, and the

manufacturer is not liable for any damages that may result. The operator/user assumes all risk.

INSTALLATION

NP-DK50 B-A-2_06-2023 14 06/2023

9. INSTALATION CONDITIONS

9.1. Handling and releasing the compressor

Fig. 2: Handling the compressor

Prior to installation, ensure that the compressor is free of all transport packaging

and stabilizers to avoid any risk of damage to the product

Fig. 3: Releasing the air pumps

Compressor with base DK50 B (Fig. 3)

After removing all packaging material, place the product on the floor and remove stabilization parts

X and Y (Detail A). Direct the output pressure hose, drain hose and power cord out the back of the

compressor.

Compressor in box DK50 BS (Fig. 3)

After removing all packaging material, place the product on the floor and remove stabilization parts

X and Y (Detail A). Direct the output pressure hose, drain hose and power cord out the back of the

compressor. Slide the box over the compressor so that the front face of the box matches the front

part of the compressor and the box is fully seated. Make sure that the pressure hose, drain hose

and electric cord come out via the opening at the back of the box. Position the drain hose with its

valve in the holder at the rear of the box.

INSTALLATION

06/2023 15 NP-DK50 B-A-2_06-2023

10. PNEUMATIC CONNECTION

10.1. Connecting to the compressed air outlet

• The pressure line (2) is attached to the compressed air

outlet (1) on the compressor and connect the hose to the

pneumatic hose or directly to the supplied equipment.

Fig. 4: Connecting to the compressed air outlet

11. ELECTRICAL CONNECTION

• The product is delivered with a cord equipped with a plug with earthing pin.

• Keep the socket easily accessible to ensure that the device can be safely disconnected from the

mains.

• Connection to the power distribution cabinet must be max.16 A

Risk of electric shock.

It is necessary to follow all local electro technical regulations. The mains voltage

and frequency must comply with the data stated on the device label.

Risk of fire and electric shock.

Electrical cord must not be broken.

Risk of fire and electric shock.

Electrical cable must not be in contact with hot compressor components.

11.1. Connecting a compressor not installed in a cabinet

• Insert the mains plug into a rated mains socket.

• The compressor is ready for operation.

11.2. Connecting a compressor installed in a cabinet

• Route the mains plug through the opening in the rear wall of the cabinet for cabinet-mounted

compressors.

• Connect the cabinet electrically to the compressor by inserting the provided power cord with

connector into an outlet.

• Disconnect the cabinet electrically from the compressor by pulling the connector from the outlet

while the latch is released.

2

1

INSTALLATION

NP-DK50 B-A-2_06-2023 16 06/2023

12. COMMISSIONING

• Make sure all transport stabilizers were removed. (Fig. 3)

• Check that all compressed air hose connections are correct. (Fig. 4)

• Check correct connection to the mains (see chap. 11).

• Start compressor at pressure switch (2) by turning switch (3) to position “I.“

The compressor is not equipped with a backup power supply.

13. ELECTRICAL DIAGRAMS

DK50 B

1/N/PE~230 V, 50/60 Hz

ELEKTRIC OBJECT OF 1st. CAT.

Description to electrical diagrams:

M1

EV1

YV1

FU

Motor of compressor

Fan of compressor

Solenoid valve

Fuses

ST

C1

SP

X1

PH

Temperature switch

Capacitor

Pressure switch

Terminal box

Hour counter

OPERATION

06/2023 17 NP-DK50 B-A-2_06-2023

OPERATION

ONLY TRAINED PERSONNEL MAY OPERATE THE EQUIPMENT!

Risk of electric shock.

In case of emergency, disconnect the compressor from the mains (pull out the

mains plug).

Burn or fire hazard.

Portions of the air pump may be hot and reach hazardous temperatures during

compressor operation that may harm materials or operating staff.

Warning – compressor is controlled automatically.

Automatic start-up. When pressure in the pressure tank drops to switch-on

pressure, the compressor automatically switches on. The compressor

automatically switches off, when pressure in the air tank reaches the switch-off

pressure.

Potential for damage to pneumatic components.

The working pressure settings for the pressure switch set by the manufacturer

cannot be changed. Compressor operation at a working pressure below the

switching pressure indicates high air usage (see the Troubleshooting chapter).

During prolonged operation of the compressor, the ambient temperature around

the compressor may increase to over 40 °C. At this point the cooling fan

automatically switches on. The fan switches off once the space is cooled to

around 32 °C.

OPERATION

NP-DK50 B-A-2_06-2023 18 06/2023

14. SWITCHING ON THE COMPRESSOR

Fig. 5: Switching the compressor

Switch on the compressor at the pressure switch (1) by turning the knob (2) to position “I.” The

compressor sends pressurized air to the air tank. As the compressed air is used, the pressure in

the air nozzle drops to a preset level, the compressor switches on and the air nozzle files with

compressed air. After reaching the cut-off pressure the compressor turns off automatically and the

cycle is repeated. Check the value of switching-on and switching-off pressure on pressure gauge

(3). The values may be within a tolerance of 10%. Air pressure in air chamber must not exceed

maximal permitted operation pressure.

Risk of damage to pneumatic parts.

The pressure switch (1) was set up by the manufacturer and any other changes

to it settings may be performed only by a qualified technician trained by the

manufacturer.

15. SWITCHING OFF THE COMPRESSOR

• Switching off the compressor due to service or any other reason shall be performed using the

pressure switch (1) by turning the switch (2) to position „0“ and pulling out the mains plug from

the socket. This disconnects the compressor from the mains supply.(Fig. 5)

• Vent the pressure in the air tank to zero by opening the drain valve.

PRODUCT MAINTENANCE

06/2023 19 NP-DK50 B-A-2_06-2023

PRODUCT MAINTENANCE

16. PRODUCT MAINTENANCE

The operator should carry out device checks regularly in the intervals defined by

applicable regulations. Test results must be recorded.

The equipment has been designed and manufactured to keep maintenance to a minimum. The

following work must be performed to preserve the proper and reliable operation of the compressor.

Unauthorised interference hazard.

Repair work outside the framework of standard maintenance (see Chapter 16.1)

may only be performed by a qualified technician (an organisation authorized by

the manufacturer) or the manufacturer’s customer service.

Standard maintenance work (see Chapter 16.1) may only be performed by the

operator’s trained personnel.

Only use manufacturer-approved replacement parts and accessories.

Danger of injury or equipment damage.

Prior to commencing compressor maintenance, it is necessary to:

- check if it is possible to disconnect the compressor from the appliance in

order to avoid any risk of injury to the person using the appliance or other

material damage;

- turn off the compressor;

- disconnect it from the mains (pulling the cord out of the mains socket);

- vent the compressed air from the air tank.

Venting compressed air poses an injury hazard.

Wear eye protection, i.e. goggles, when venting compressed air from the

compressed air circuit (air tank) and from the dryer chamber.

Burn hazard.

Pump components (head, cylinder, pressure hose) have high temperature during

and shortly after compressor operation – do not touch these components!

Let the device cool before any product maintenance, service or connection/

disconnection of pressurized air!

PRODUCT MAINTENANCE

NP-DK50 B-A-2_06-2023 20 06/2023

16.1. Maintenance intervals

Performed

by

operator

qualified technician

a) data is in hours, if not available, data is in years

b) applies to compressor without dryer

c) time interval reduces by 20% for compressor variants 60 Hz

(2000h./1600h., 4000h./3200h., 6000h./4800h., 8000h./6400h., 10000h./8000h., 12000h./9600h.)

Set of

replacement

parts

-

025200126-

000

Chap.

16.2

16.5

7

16.3

16.4

16.8

16.6

16.7

12000

hours

9600

hours

x

10000

hours

8000

hours

8000

hours

6400

hours

x

6000

hours

4800

hours

4000

hours

3200

hours

x

2000

hours

1600

hours

Once every

2 years

x

Once a year

x

Once a week

x

Once a day

x

50 Hz

60 Hz

Check of product operation

Drain condensate from air tank b) – at

high humidity

Check of product function

Check of pneumatic connections

leakage and device inspection

Inspection of electrical connections

Check of cooler and fan

Check of safety valve

Replacement of pump inlet filter a)

Time interval c)

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