EKOM DK50 9x4VRT/M User manual

DK50-9x4VRT/M
User manual
EN

October 2018
Z_2195/2018
Chap. 3 – pgs.5

COMPRESSOR
DK50 9x4VRT/M
EKOM spol. s r. o.
Priemyselná 5031/18
SK-921 01 Piešťany
Slovak Republic
tel.: [phone]
fax: [phone]
www.ekom.sk
email: [email protected]
DATE OF LAST REVISION
10/2018
NP-DK50-9x4VRTM_ED-EN-
2_10-2018
112000370-0001

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CONTENTS
IMPORTANT INFORMATION .......................................................................................................... 5
1.CONFORMITY WITH THE REQUIREMENTS OF EUROPEAN UNION DIRECTIVES ..................... 5
2.INTENDED USE .................................................................................................................................. 5
3.CONTRAINDICATIONS AND SIDE-EFFECTS ................................................................................... 5
4.WARNINGS AND SYMBOLS .............................................................................................................. 5
5.NOTICE ............................................................................................................................................... 6
6.STORAGE AND TRANSPORT ........................................................................................................... 7
7.TECHNICAL DATA .............................................................................................................................. 8
8.PRODUCT DESCRIPTION ............................................................................................................... 12
9.EQUIPMENT FUNCTION .................................................................................................................. 14
10.PNEUMATIC DIAGRAM .................................................................................................................... 16
INSTALLATION .............................................................................................................................. 17
11.CONDITIONS FOR USE ................................................................................................................... 17
12.PLACEMENT OF THE COMPRESSOR ........................................................................................... 18
13.PNEUMATIC CONNECTIONS .......................................................................................................... 20
14.ELECTRICAL CONNECTIONS ......................................................................................................... 21
OPERATION ................................................................................................................................... 25
15.INITIAL START UP OF THE DEVICE ............................................................................................... 2 5 
16.SWITCHING THE COMPRESSOR ON ............................................................................................ 25
17.COMPRESSOR SHUT-DOWN ......................................................................................................... 3 0 
MAINTENANCE ............................................................................................................................. 30
18.PRODUCT MAINTENANCE .............................................................................................................. 30
TROUBLESHOOTING AND REMEDYING PROBLEMS ............................................................... 39
19.TROUBLESHOOTING COMMON PROBLEMS ................................................................................ 39
20.REPAIR SERVICE ............................................................................................................................. 41
21.DISPOSAL OF THE DEVICE ............................................................................................................ 41
ANNEX ........................................................................................................................................... 42
22. MAPPING PARAMETERS ............................................................................................................... 42
23.INSTALLATION RECORD ................................................................................................................. 44

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IMPORTANT INFORMATION
1. CONFORMITY WITH THE REQUIREMENTS OF EUROPEAN UNION DIRECTIVES
This product confirms to the requirements of Directives 93/42/EEC (Medical Device Directive) and
2006/42/EEC and is safe for the intended use when all safety instructions are followed.
2. INTENDED USE
The compressor is used as a central source of
clean, oil-free compressed air to power
individual devices and equipment with
compressed air used in large dental clinics
and laboratories, in hospitals wards and other
settings where the parameters and properties
of the compressed air are suitable to the
specific application.
Compressed air supplied by the
compressor is unsuitable for use
with artificial lung ventilation
devices without further filtration.
Any use of the product outside the framework
of its intended use is considered improper
use. The manufacturer is not liable for any
damages or injury resulting from misuse.
3. CONTRAINDICATIONS AND SIDE-EFFECTS
There are no contraindications or side-effects known.
4. WARNINGS AND SYMBOLS
The following labels and symbols are used in
the Installation, Operation and Maintenance
Manual and on the equipment and its
packaging to indicate important details and
information:
General warnings
Danger, electrocution hazard
Read the user manual
CE conformity marking
Compressor is remote-controlled
and may start without warning
Warning! Hot surface
Earth (ground) connection
Terminal for ground connection
Alternating current
Handling mark on package –
FRAGILE
Handling mark on package – THIS
WAY UP
Handling mark on package – DO
NOT EXPOSE TO RAIN
Handling mark on package –
TEMPERATURE RANGE
Handling mark on package –
LIMITED STACKING
Mark on package – RECYCLABLE
MATERIAL
Manufacturer

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5. NOTICE
The product is designed and manufactured to
be safe for the user and its surrounding
environment when used in the defined
manner. Keep the following warnings in mind.
This keeps risks to a minimum.
5.1. General warnings
READ THE USER MANUAL CAREFULLY
BEFORE USING THE DEVICE AND KEEP IT
FOR FUTURE USE!
 The user manual aids in the correct
installation, operation and maintenance of
the product. It is included with the product
and must be kept close to it at all times.
Careful review of this manual will provide
the information necessary for the intended
use and correct operation of the product.
 Equipment containing the condensing dryer
is provided with a separate manual for
these components.
 Only the original packaging ensures
optimal protection of the equipment during
transport. Save this packaging should you
ever have to return the equipment. The
manufacturer is not liable for damages
caused by faulty packaging when returning
a product for transport during the warranty
period.
 Use a fork lift truck or similar hoisting
equipment for any movement or handling of
the product.
 This warranty does not cover damages
originating from the use of accessories or
consumables other than those specified or
suggested by the manufacturer.
 The manufacturer only guarantees the
safety, reliability and function of the
equipment if:
- installation, new settings, changes,
modifications and repairs are performed
by the manufacturer or its
representative, or a service provider
authorized 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 applicable safety and
technical standards at the time of its
printing. The manufacturer reserves 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.
5.2. General safety warnings
The manufacturer designed and manufactured
the product to minimise all risks when used
correctly for the intended purpose. The
manufacturer considers it responsible for
specifying the following general safety
precautions.
 Use and operation of the product must
comply with all local codes and regulations.
The operator and user are responsible for
following all appropriate regulations in the
interests of performing work safely.
 Only the use of original parts guarantees
the safety of operating personnel and
reliable operation of the product itself. Only
use accessories and parts mentioned in the
technical documentation or expressly
approved by the manufacturer.
 The manufacturer assumes no liability for
any damages or other risks if any
accessories or parts other than mentioned
in the technical documentation or expressly
approved by the manufacturer are used.
This warranty does not cover damages
originating from the use of accessories or
consumables other than those specified or
suggested by the manufacturer.
 The user must make sure that the
equipment is functioning correctly and
safely every time it is used.
 The user / operator must be capable of
safely using and properly operating the

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
product. The user must be trained to
operate the product and must be
experienced.
 Create operating regulations for the person
operating the product.
 Wear hearing protection when starting the
product, during operation and any time it is
in operation.
 Operating the product in operating
premises that may contain mixtures of
flammable gases such as operating rooms
or in areas that may contain explosive
mixtures of particulate, such as coal dust,
is prohibited.
 Flammable materials pose an explosion
hazard!
 Use of the product in wet or damp
environments is prohibited.
 The user shall inform the supplier
immediately if any problem occurs in direct
connection with the operation of the
equipment.
5.3. Electrical system safety warnings
 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 possible damage to the product
and the connected air distribution system
before use. Replace damaged pneumatic
and electrical conductors immediately.
 Immediately disconnect the product from
the mains in hazardous situations or when
a technical malfunction occurs.
 During repairs and maintenance, ensure
that:
 product is disconnected from the
mains
 pressure is released from all lines
 Only the manufacturer, or a qualified
specialist trained by the manufacturer may
install, modify or upgrade the product itself.
 Only a qualified electrician may install
electrical components!
6. STORAGE AND TRANSPORT
The compressor is shipped from the factory in
a transport packaging. This protects the
device from damage during transport.
The original compressor
packaging must be used for
transport whenever possible. The
compressor is to be 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. Store a compressor in its
original packaging in a warm, dry and
dust-free area. Do not store near any
chemical substances.
Keep packaging material if possible.
If not, please dispose of the
packaging material in an
environmentally-friendly way.
Packaging cardboard can be
recycled with old paper.
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 hoses and drain the
condensed water.
Ambient conditions for storage and
transport
Products may only be stored and transported
in vehicles that are free of any traces of
volatile chemicals under the following
conditions :
Temperature : +0°C až +50°C,
Max. relative humidity: 90%,


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7. TECHNICAL DATA
Compressors are designed for dry and well-
ventilated indoor environments with the
following conditions:
Temperature : +5°C to +40°C,
Max. relative humidity.: 70%,
Max. absolute humidity.: 15 g/m3.
Tab.1
Type DK50 9x4VRT/M DK50 9x4VRTS/M
Output at 6 bar l/min 2380 2380
Voltage / frequency V / Hz 3 x 400 / 50 3 x 400 / 50
Current draw (max.) A 45 45
Main circuit breaker A 50 50
Main feeder gauge mm2 10 10
Enclosure IP10 IP30
Air tank capacity l 500 500
Working pressure bar 6  8 6  8
Safety valve bar 10 10
Noise level dB 85 74
Total weight of compressor (net) kg 747 817
Weight - compressor module kg 540 610
Weight - dryer module kg 80 80
Weight of air tank kg 127 127
Compressor dimensions, total
(w x d x h) mm 3800x705 x2100 3800x705 x2100
Dimensions - compressor module
(w x d x h) mm 1840x630 x1730 1860x705 x1760
Dimensions – ED108 dryer
module
(w x d x h)
mm 760x580x1050 760x580x1050
Air tank dimensions
(w x d x h) mm 770x705 x2100 770x705 x2100
Operating mode S1 – 100% S1 – 100%
Dryer performance with
condensation dryer (ED108)
(PDP*)
+3°C +3°C
Time to fill air tank from 0 to 7 bar s 50 50
Recommended cooling air
changes in space m3/h 3250 3250
Electrical class class I. class I.

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Tab.2
Type DK50 9x4VRT/M DK50 9x4VRTS/M
Output at 8 bar l/min 1780 1780
Voltage / frequency V / Hz 3 x 400 / 50 3 x 400 / 50
Current draw (max.) A 47 47
Main circuit breaker A 50 50
Main feeder gauge mm2 10 10
Enclosure IP10 IP30
Air tank capacity l 500 500
Working pressure bar 8  10 8  10
Safety valve bar 11 11
Noise level dB 80 69
Total weight of compressor (net) kg 747 817
Weight - compressor module kg 540 610
Weight - dryer module kg 85 74
Weight of air tank kg 127 127
Compressor dimensions, total
(w x d x h) mm 3800x705 x2100 3800x705 x2100
Dimensions - compressor module
(w x d x h) mm 1840x630 x1730 1860x705 x1760
Dimensions – ED108 dryer
module
(w x d x h)
mm 760x580x1050 760x580x1050
Air tank dimensions
(w x d x h) mm 770x705 x2100 770x705 x2100
Operating mode S1 – 100% S1 – 100%
Dryer performance with
condensation dryer (ED108)
(PDP*)
+3°C +3°C
Time to fill air tank from 0 to 7 bar s 50 50
Recommended cooling air
changes in space m3/h 3250 3250
Electrical class class I. class I.
(*) Apply the correction factor for the ED180 dryer

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7.1. Free air delivery (FAD) correction due to elevation
FAD correction table
FAD reference conditions:
Elevation: 0 MASL
Temperature: 20°C
Atmospheric pressure: 101 325 Pa
Relative humidity: 0%
7.2. Dryer performance correction
ED180 dryer reference values
Temperature of air entering the dryer tinlet °C 35 (max.55)
Ambient temperature t0 °C 25 (max.45)
Working pressure p bar 7 (max.16)
Pressure dew point PDP °C +3 (-22 atm.)
ED180 dryer correction factors
Correction factor for working pressure
p (bar) 4 5 6 7 8 9 10
FC1 0.78 0.85 0.93 1.0 1.06 1.11 1.15
Correction factor for temperature of compressed air entering the dryer
tinlet(°C) 30 35 40 45 50 55
FC2 1.2 1.0 0.85 0.71 0.58 0.49
The cooler cools the compressed air to a temperature of ~19oC higher than the ambient
temperature. Therefore:
tinlet = to + 19oC
It means E.G. at ambient temperature of to = 16oC, tinlet= 16o + 19o = 35oC → FC2 = 1,0
Dew point correction factor
PDP (°C) 3 4 5 6 7 8 9
FC3 1 1.04 1.09 1.14 1.18 1.25 1.3
Correction factor for ambient temperature
to (°C) 25 30 35 40
FC4 1 0.96 0.92 0.88
Elevation [MASL] 0 - 1500 1501 - 2500 2501 - 3500 3501 - 4500
FAD [l/min] FAD x 1 FAD x 0.8 FAD x 0.71 FAD x 0.60

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Calculation to determine dryer pressure dew point value:
421
3
CCCn
skut
CFFFQ Q
F 
Qskut = actual airflow
Qn = nominal dryer flow (1800lit/min)
FC1 = working pressure correction factor
FC2 = correction factor for air entering the dryer
FC3 = dew point correction factor
FC4 = ambient temperature correction factor
See the user manual for the dryer on the CD for more information

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8. PRODUCT DESCRIPTION
8.1. Variants
DK50 9x4VRT/M compressor comprised of
the following modules (Fig.1a):
- compressor module with 9 compressor
air pumps and controls
- a (condensing) dryer module with
connection hoses
- air tank module
DK50 9x4VRTS/M compressor comprised of
the following modules (Fig. 1b):
- a compressor module with 9 compressor
air pumps and controls along with a
soundproof enclosure
- a (condensing) dryer module with
connection hoses
- air tank module
Fig. 1a Compressor without enclosure
Fig.1b Compressor with enclosure
1. Compressor module
2. Dryer module
3. Air tank module

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8.2. Accessories
Accessories are available for compressor
directly from the manufacturer (by special
request in an order) or may be ordered
directly from the manufacturer at a later time,
see below. Individual accessories may be
combined.
Accessories not included in the standard
order must be ordered separately!
8.2.1. Central air pump intake kit
This kit provides a properly sized central filter
located on the compressor module with intake
ducts to the individual compressors. This
extends the central filter replacement interval
(now every 2,000 hours) and eliminates the
need to replace filters on individual
compressors with simple and fast replacement
of the central filter.
8.2.2. Set of compressed air outlet filters
The compressor may be equipped with a set
of filters if needed. A pressure regulator may
be added to the set of filters. The set of filters
is fully compatible with all compressors listed
above.
If a higher level of air filtration is
required, this specification must be
agreed upon with the supplier and
made clear in the order.
SET OF
FILTERS
Level of filtration Pressure regulator Kit article no.
3µm
yes
447000001-058
3µm – 0.3µm 447000001-060
3µm – 0.01µm 447000001-062
1µm – AC/HC 447000001-064
3µm – 0.3µm
no
447000001-061
3µm – 0.01µm 447000001-063
1µm – AC/HC 447000001-065
8.2.3. Compressor module enclosure (soundproofing)
Enclosing the compressor module reduces the
noise generated by the compressor by up to
11 dB(a) compared to the existing module
while ensuring sufficient cooling for the air
pumps themselves for S1 class continuous
operations.
Compressor type With central intake Kit article no.
DK50 9x4VRT/M yes 447000001-068
DK50 9x4VRT/M no 447000001-069
Compressor type Kit article no.
DK50 9x4VRT/M 447000001-067
DK50 9x4VRTS/M 447000001-066

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9. EQUIPMENT FUNCTION
The compressor produces oil-free, dry,
filtered compressed air to power pneumatic
devices and equipment used in dental clinics
and laboratories, hospital departments and
more.
Compressor air pumps (11) draw in
atmospheric air through the inlet filters and
compress it through check valves and into the
compressed air system. From there, the
compressed air proceeds to the cooler (8), in
which the compressed air is cooled for the first
time and condensate is produced. The air
then passes through a water separator and
into the condensing dryer (9). This continues
to lower the temperature of the air and
produces more condensate. The temperature
then rises to reduce the relative humidity. The
clean, dry air then passes through a check
valve and enters the air tank (2). Condensate
from the water separator and the dryer is
drained off into a 10 l vessel in the
condensate drain kit. The dryer ensures the
continuous and no-loss drying of the
compressed air. The treated compressed air
is then ready for additional use in the air tank.
Fig. 2 Equipment function
1. Compressor module
2. Air tank
3. Switchboard
4. Safety valve
5. Pressure sensor
6. Pressure gauge
7. Outlet valve
8. Cooler
9. Condensation dryer
10. Water separator
11. Compressor air pump
12. Drain valve
13. Connecting hoses
14. Electric cables

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Fig. 3 Electrical box / switchboard
3. Electrical box / switchboard
16. Display
17. Alarm indicator
18. Start/stop button
19. Main switch
20. Temperature sensor

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10. PNEUMATIC DIAGRAM
DK50 9x4VRT/M and DK50 9x4VRTS/M
1 Inlet filter 2 Compressor air pump 3 Compressor fan 4 Solenoid valve 5 Safety valve 6 Check valve 7 Pressure relief valve 8 Condensate separator 9 Dryer 10 Pressure sensor 11 Pressure gauge 12 Cooler 13 Cooler fan 14 Air tank 15 Drain valve 16 Central fan 17 Outlet valve 18 Nádoba na kondenzát

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Air outlet
Cooling air inlet
Recommended flow
of cooling air:
DK50 9x4VRT/M – 3250
m3/h
Applies for continuous
operation and cooling air
temperature of 20°C
Space conditions
- Temperature +5°C ÷+40°C
- - Relative humidity 70%
Fig.4
INSTALLATION
11. CONDITIONS FOR USE
The compressor may only be installed and
operated in dry, well-ventilated and dust-free
areas.
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 Technical
Data).
The compressor on the operator’s side must
be at least 70 cm from the wall to allow air
flow for cooling purposes and to ensure the
safety of the operator and maintenance
personnel.
Operating the equipment in areas in
which flammable mixtures may be
present, such as in operating rooms,
coal storage areas, etc., is prohibited.
Flammable materials pose an
explosion hazard.
Ensure power cords and air hoses
are not damaged. The power cord
may not show signs of stress and
must be kept without tension (putting
any objects on it is prohibited) and
subjecting the cord to external heat in
any form is prohibited.
Environmental requirements:
Temperature : +5°C to +40°C,
Max. relative humidity: 70%,
Max. absolute humidity: 15 g/m3.
Approximately 70% of the electrical energy
used by the compressor air pumps is
converted to heat and therefore the rooms in
which a compressor assembly is installed
must have additional ventilation to provide
sufficient air exchange for cooling purposes
(see the technical data)
Caution! Hot surface! Portions of
the compressor may be hot and
reach hazardous temperatures during
compressor operations that may
harm materials or operating staff.
Fire hazard!

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12. PLACEMENT OF THE COMPRESSOR
Only a trained and qualified technician may
install the product.
Unpack the compressor assembly
(compressor, dryer and air tank
modules) to remove all packaging
and release the transport anchors
from the pallet. Anchors securing all
modules to the pallet.
12.1. Handling
Use a fork lift truck or similar hoisting
equipment to handle and position the product.
Place the compressor module at the site of
installation. (Fig.5a)
Level the compressor assembly. (Fig.6)
Fig.5a
Fig.6
Fig.5b

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Frame installation. (Fig. 7)
Remove the transport stabilizers from the air
pumps. (Fig.8)
Remove all stabilizers on the air pumps once the compressor assembly has been
positioned and levelled at the site of final installation!
Releasing air pump stabilizers
DK50 9x4VRT/M - 18 stabilizers
Fig.8
Fig.7

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Position the air tank at the site of installation and anchor it to the floor! (Fig.9)
13. PNEUMATIC CONNECTIONS
Compressor module – dryer module – connect
the air tank with the provided hoses. (Fig.10)
12
Cleaning
Fig.9
Fig.10