EKOM DK50 4x2VT/M User manual

DK50 4x2VT/M
DK50 6x2VT/M
User manual

COMPRESSOR
DK50 4x2VT/M
DK50 6x2VT/M
EKOM spol. s r. o.
Priemyselná 5031/18
SK-921 01 Piešťany
Slovak Republic
tel.: [phone]
fax: [phone]
www.ekom.sk
email: eko[email protected]
DATE OF LAST REVISION
06/2021
NP-DK50-Nx2VTM-AD-EN-
3_06-2021
112000481-0001

CONTENTS..................................................................................................5

CONTENTS
06/2021 5 NP-DK50-Nx2VTM-AD-EN-3_06-2021
CONTENTS
IMPORTANT INFORMATION........................................................................................................6
1. CONFORMITY WITH THE REQUIREMENTS OF THE EUROPEAN UNION...................6
2. INTENDED USE ..............................................................................................................6
3. CONTRAINDICATIONS AND SIDE-EFFECTS................................................................6
4. SYMBOLS........................................................................................................................6
5. WARNINGS.....................................................................................................................7
6. STORAGE AND TRANSPORT CONDITIONS.................................................................9
PRODUCT DESCRIPTION ..........................................................................................................10
7. VARIANTS.....................................................................................................................10
8. ACCESSORIES.............................................................................................................12
9. PRODUCT FUNCTION..................................................................................................13
TECHNICAL DATA......................................................................................................................17
INSTALLATION...........................................................................................................................23
10. INSTALLATION CONDITIONS ......................................................................................23
11. COMPRESSOR ASSEMBLY.........................................................................................24
12. PNEUMATIC CONNECTION.........................................................................................27
13. ELECTRICAL CONNECTION........................................................................................30
14. COMMISSIONING .........................................................................................................32
15. PNEUMATC DIAGRAMS...............................................................................................33
OPERATION................................................................................................................................36
16. SWITCHING THE COMPRESSOR................................................................................37
17. SWITCHING OFF THE COMPRESSOR........................................................................40
PRODUCT MAINTENANCE ........................................................................................................41
18. PRODUCT MAINTENANCE...........................................................................................41
TROUBLESHOOTING.................................................................................................................53
19. REPAIR SERVICE.........................................................................................................55
20. LONG-TERM SHUTDOWN............................................................................................56
21. DISPOSAL OF DEVICE.................................................................................................56
ANNEX ........................................................................................................................................57
22. INSTALLATION RECORD .............................................................................................57

IMPORTANT INFORMATION
NP-DK50-Nx2VTM-AD-EN-3_06-2021 6 06/2021
IMPORTANT INFORMATION
1. CONFORMITY WITH THE REQUIREMENTS OF THE EUROPEAN UNION
This product conforms to the requirements of the Regulation (EU) on medical devices (MDR
2017/745) and is safe for the intended use if all safety instructions are followed.
2. INTENDED USE
The compressor is used as a source of clean, oil-free compressed air to power active medical
devices where the parameters and properties of the compressed air are suitable for the specific
application.
Compressed air supplied by the compressor is unsuitable for use with artificial
lung ventilation devices without further filtration
Any other use of the product beyond its intended use is considered an incorrect use. The
manufacturer is not liable for any damages or injuries resulting from the incorrect use.
3. CONTRAINDICATIONS AND SIDE-EFFECTS
There are no contraindications or side-effects known.
4. 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
Read the operating instructions
Refer to instruction manual
CE –marking
Serial number
Protecting earthing
Terminal for ground connection

IMPORTANT INFORMATION
06/2021 7 NP-DK50-Nx2VTM-AD-EN-3_06-2021
Alternating current
Compressed air inlet - dryer
Compressed air outlet - dryer
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
5. WARNINGS
The product is designed and manufactured to be safe for the user and the surrounding environment
when used in the defined manner. Keep the following warnings in mind.
5.1. General warnings
READ THE USER MANUAL CAREFULLY BEFORE USING THE DEVICE AND KEEP IT FOR
FUTURE USE!
The user manual supports the correct installation, operation and maintenance of the product.
Careful review of this manual will provide the information necessary for the correct operation
of the product for its intended use.
Original packaging should be retained for the return of the device. Only the original
packaging ensures protection of the device during transport. If it is necessary to return the
product during the warranty period, the manufacturer is not liable for damages caused by
improper packaging.
This warranty does not cover damages originating from the use of accessories other than
those specified or recommended by the manufacturer.
The manufacturer only guarantees the safety, reliability and function of the device if:
- installation, new settings, changes, expansion, and repairs are performed by the
manufacturer or an organisation authorised by the manufacturer.
- the product is used pursuant to the user manual.
The user manual corresponds to the configuration of the product and its compliance with the
applicable safety and technical standards at the time of printing. The manufacturer reserves

IMPORTANT INFORMATION
NP-DK50-Nx2VTM-AD-EN-3_06-2021 8 06/2021
all rights for the protection of its configuration, methods and names.
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.
This user manual is the original instructions. Translation is performed in accordance with the
best available knowledge.
5.2. General safety warnings
The manufacturer designed and manufactured the product to minimise all risks when used correctly
for the intended use. The manufacturer considers it its obligation to lay down the following general
safety precautions.
Use and operation of the product must comply with all laws and local regulations valid in the
place of use. The operator and user are responsible for following all the appropriate
regulations in the interests of performing work safely.
Only the use of original parts guarantees the safety of operating personnel and the flawless
operation of the product itself. Only the accessories and parts mentioned in the technical
documentation or expressly approved by the manufacturer should be used.
The operator must ensure that the device is functioning correctly and safely before every
use.
The user must be familiar with the operation of the device.
Do not use the product in environments with a risk of explosion.
The user must inform the supplier immediately if any problem directly related to the operation
of the device occurs.
5.3. Safety warnings on protection from electric current
The device must only be connected to a properly installed, earthed socket.
Before the product is plugged in, ensure that the mains voltage and frequency stated on the
product are in compliance with the values of the mains.
Prior to putting the device into operation check for any damage to the connected pneumatic
lines and electrical wiring. Replace damaged pneumatic lines and electrical wirings
immediately.
Immediately disconnect the product from the mains (remove power cord from the socket) in
hazardous situations or in the case of a technical malfunction.
During all repairs and maintenance, ensure that:
- the mains plug is removed from the power socket
- pressure is vented from the air tank and pipes
The product shall only be installed by a qualified technician.

IMPORTANT INFORMATION
06/2021 9 NP-DK50-Nx2VTM-AD-EN-3_06-2021
6. STORAGE AND TRANSPORT CONDITIONS
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 factorypackaging 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.
6.1. 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-Nx2VTM-AD-EN-3_06-2021 10 06/2021
PRODUCT DESCRIPTION
7. VARIANTS
The compressor is manufactured according to its intended application in the following variants:
DK50 4x2VT/M
Composed of modules:
1 compressor module - 4x2V air pumps
2 adsorption dryer
3 air tank module –2x110 l
DK50 6x2VT/M
Composed of modules:
1 compressor module - 6x2V air pumps
2 adsorption dryer
3 air tank module–3x110 l
DK50 4x2VT/M

PRODUCT DESCRIPTION
06/2021 11 NP-DK50-Nx2VTM-AD-EN-3_06-2021
DK 50 6x2VT/M

PRODUCT DESCRIPTION
NP-DK50-Nx2VTM-AD-EN-3_06-2021 12 06/2021
8. ACCESSORIES
Accessories that are not included in the standard order must be ordered separately.
Set of compressed air outlet filters
The compressor may be equipped with a set of filters if specified. The filter set may be equipped
with an air pressure regulator. The filter sets are identical for the DK50 4x2VT/M and DK50 6x2VT/M
products.
Where a different level of air filtration is required, this requirement must be
agreed upon with the supplier and specified in the order.
Type
Use
Level of filtration
(µm)
Bypass
function *
Article number
FS 40F
DK50 4x2VT/M
DK50 6x2VT/M
1
no
604014119-000
FS 40M
1+0.1
604014119-004
FS 40S
1+0.01
604014119-024
FS 40AH
1+AC+HC(0.01)
604014119-005
*) These FS do not contain a filter bypass, which will ensure a continuous flow of air when
replacing the filter element. Such a set must be ordered separately.
Set of filters
Filter set regulator assembly
Type
Use
Article number
Regulator complete
DK50 4x2VT/M
DK50 6x2VT/M
604014125-000
Filter set brackets
A suitable bracket must be ordered for every filter set.
Type
Use
Article number
Compressor-mounted bracket
DK50 4x2VT/M
DK50 6x2VT/M
603014137-000
Wall-mounted bracket
603014120-000

PRODUCT DESCRIPTION
06/2021 13 NP-DK50-Nx2VTM-AD-EN-3_06-2021
9. PRODUCT FUNCTION
9.1. Compressor with adsorption dryer
The compressor air pumps (1) draw in air through the inlet filter (8) and compress it through a non-
return valve and into a manifold, from which it is routed to the adsorption dryer (3) through a
connecting hose. From the inlet to the dryer module, the air is first cooled in the integrated cooler
(17) and then moves through the condensate separator (29), entering the active chamber with
adsorbent(19), where theair isthen dried. Aportion ofthe dryair isfed intothe second, regeneration
chamber, where this air is used to remove moisture from the adsorbent, after which it is released
with the accumulated condensate through the silencer (27). Chamber operation (desiccant
regeneration) is cyclically switched. Dry and filtered air then passes through the non-return valve
into the air tank (2).
Description for figures 1-3:
1. Air pump
2. Air tank
3. Adsorption dryer
4. Electrical box / switchboard
5. Frame
6. Pressure switch
7. Drain valve
8. Magnetic holder
9. Condensate collection vessel
10. Pressure gauge
11. Three-pole circuit breaker
12. Single-pole circuit breaker
13. LOGO control electronics
14. Indicator
15. Contactor
16. Thermal overcurrent relays
17. Cooler module
18. Inlet valve module
19. Dryer chamber
20. -
21. Outlet module
22. Regeneration solenoid valve
23. Regeneration solenoid valve
24. Inlet solenoid valve
25. Inlet solenoid valve
26. Relief valve
27. Noise silencer
28. Compressed air inlet
29. Condensate separator
30. Pressure gauge
31. Automatic condensate drain
32. Dryer pan
33. Air outlet

PRODUCT DESCRIPTION
NP-DK50-Nx2VTM-AD-EN-3_06-2021 14 06/2021
Fig. 1: Compressor with adsorption dryer

PRODUCT DESCRIPTION
06/2021 15 NP-DK50-Nx2VTM-AD-EN-3_06-2021
Fig. 2: Adsorption dryer

PRODUCT DESCRIPTION
NP-DK50-Nx2VTM-AD-EN-3_06-2021 16 06/2021
Fig. 3: Electrical box / switchboard
The range of the pressure switch on the configured assemblies may only be
adjusted after prior consultation with the manufacturer.
Adjusting the pressure setting of the safety valve is expressly prohibited.
The pressure relief valve automatically begins to vent air from the system if the pressure in the
compressed air circuit exceeds its pre-set value. The pressure relief valve then closes as the
pressure drops.
Pressure in the compressed air circuit can only increase because of an increase
in flow resistance in the compressed air lines or as a result of a dryer malfunction
(e.g. solenoid valve malfunction, an increase in flow resistance through the
drying media, etc.), and therefore the repeated opening of the relief valve requires
a dryer function check and repairs if necessary.
Consultation with the manufacturer is required before any adjustment is made to
the relief valve!
The outlet openings on the relief valve must not be blocked and the flow of
compressed air through them may not be restricted.

TECHNICAL DATA
06/2021 17 NP-DK50-Nx2VTM-AD-EN-3_06-2021
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 6 –8 bar
DK50 6x2VT/M
Nominal voltage
Frequency a)
V, Hz
3x400, 50
Capacity at 6 bar (FAD)
-20°C
l/min
620
Working pressure b)
bar
6.0 –8.0
Max. current
A
22
Main circuit protection
device rating
A
50
Main electrical feeder
mm2
10
Enclosure
IP10
Motor power
kW
1.2
Air tank volume
l
330
Air quality - filtration
m
-
Maximum operating
pressure of safety valve
bar
12.0
Noise level at 5 bar (LpA)
dB
≤73
Operating mode
%
S1-100
PDP drying
performance at 7 bar d)
°C
-20
Time to fill air tank from
0 to 7 bar
s
226
Net weight c)
kg
464
Dimensions (net)
mm
2360x511x1730
Required cooling air
changes in space
m3/h
1500
Electrical class
Class I.
a) Specify the compressor version when ordering
b) Consult any other range of pressure with the supplier
c) Weight is indicative and only applies to the product without accessories
d) Applies to ambient temperatures of <30°C PDP – pressure dew point

TECHNICAL DATA
NP-DK50-Nx2VTM-AD-EN-3_06-2021 18 06/2021
Dependence of compressor output on working pressure

TECHNICAL DATA
06/2021 19 NP-DK50-Nx2VTM-AD-EN-3_06-2021
Working pressure 6 –8 bar
DK50 4x2VT/M
DK50 6x2VT/M
Rated voltage
Frequency a)
V, Hz
3x400, 50
3x400, 50
Output at 6 bar (FAD) at
PDP-40°C
l/min
430
580
Working pressure b)
bar
6.0 –8.0
6.0 –8.0
Max. current
A
14.5
22
Main circuit protection
device rating
A
50
50
Main electrical feeder
mm2
10
10
Enclosure
IP10
IP10
Motor output
kW
1.2
1.2
Air tank capacity
l
220
330
Air quality –filtration
m
-
-
Maximum operating
pressure of safety valve
bar
12.0
12.0
Noise at 5 bar (LpA)
dB
≤72
≤73
Operating mode
%
S1-100
S1-100
PDP drying
performance at 7 bar d)
°C
-40
-40
Time to fill air tank from
0 to 7 bar
s
226
226
Net weightc)
kg
374
464
Net dimensions
W x L x H
mm
2360x511x1730
2360x511x1730
Required cooling air
changes in space
m3/h
1000
1500
Electrical class
Class I.
a) Specify the compressor version when ordering
b) Consult any other range of pressure with the supplier
c) Weight is indicative and only applies to the product without accessories
d) Applies to ambient temperatures of <30°C PDP – pressure dew point
Dependence of compressor output on working pressure

TECHNICAL DATA
NP-DK50-Nx2VTM-AD-EN-3_06-2021 20 06/2021
Working pressure 8 –10 bar
DK50 6x2VT/M
Rated voltage
Frequencya)
V, Hz
3x400, 50
Output at 6 bar (FAD) at
PDP-20°C
l/min
470
Working pressure b)
bar
8.0 –10.0
Max. current
A
25
Main circuit protection
device rating
A
50
Main electrical feeder
mm2
10
Enclosure
IP10
Motor output
kW
1.2
Air tank capacity
l
330
Air quality –filtration
m
-
Maximum operating
pressure of safety valve
bar
12.0
Noise at 5 bar (LpA)
dB
≤73
Operating mode
%
S1-100
PDP drying performance
at 7 bard)
°C
-20
Time to fill air tank from 0
to 7 bar
s
226
Net weightc)
kg
464
Net dimensions
W x L x H
mm
2360x511x1730
Required cooling air
changes in space
m3/h
1500
Electrical class
Class I.
a) Specify the compressor version when ordering
b) Consult any other range of pressure with the supplier
c) Weight is indicative and only applies to the product without accessories
d) Applies to ambient temperatures of <30°C PDP – pressure dew point
Dependence of compressor output on working pressure