EKOM DK50 2x4VR/110, DK50 2x4VR/110S, DK50 2x4VR/110/M, DK50 2x4VR/110S/M Installation, Operation And Maintenance Manual
DK50 2x4VR/110
NP-DK50 2x4VR110-12_10-2016 - 2 - 10/2016
CONTENTS
IMPORTANT INFORMATION ................................................................................................................. 3
1. CE MARKING ............................................................................................................................ 3
2. WARNINGS ................................................................................................................................ 3
3. ALERT NOTICES AND SYMBOLS ............................................................................................ 4
4. STORAGE AND TRANSPORT .................................................................................................. 4
5. TECHNICAL DATA ..................................................................................................................... 5
6. PRODUCT DESCRIPTION ........................................................................................................ 6
7. FUNCTION ................................................................................................................................. 8
INSTALLATION ..................................................................................................................................... 11
8. USE ........................................................................................................................................... 11
9. INSTALLATION ........................................................................................................................ 11
10. WIRING DIAGRAMS ............................................................................................................... 16
11. PNEUMATIC DIAGRAM .......................................................................................................... 18
12.FIRST OPERATION ................................................................................................................. 19
OPERATION .......................................................................................................................................... 19
13.SWITCHING THE COMPRESSOR ON ................................................................................... 20
MAINTENANCE .................................................................................................................................... 21
14.MAINTENANCE SCHEDULE ................................................................................................. 21
15.MAINTENANCE ........................................................................................................................ 21
16.STORAGE ................................................................................................................................ 25
17.DISPOSING OF THE APPLIANCE .......................................................................................... 25
18.REPAIR SERVICE .................................................................................................................... 25
19.SOLVING PROBLEMS ............................................................................................................. 2 5
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IMPORTANT INFORMATION
1. CE MARKING
Products labeled with the CE mark of compliance meet the safety guidelines (93/42/EEC) of the European
Union.
2. WARNINGS
2.1. General warnings
This Installation, Operation and Maintenance Manual is a part of the appliance and must be kept with the
compressor. Careful review of this manual will provide the information necessary for correct operation of the
appliance.
The safety of operating personnel and trouble-free operation of the appliance are guaranteed only if
original parts are used. Only accessories and parts mentioned in the technical documentation or expressly
approved by the manufacturer can be used.
If any other accessories or consumable materials are used, the manufacturer cannot be held responsible
for the safe operation of the appliance. This guarantee does not cover damages originating from the use of
accessories or consumable material other than those specified or suggested by the manufacturer.
The manufacturer guarantees the safety, reliability and function of the appliance only if:
- Installation, new settings, amendments, extensions and repairs are performed by the manufacturer or
its representative, or a service provider authorized by the manufacturer
- The appliance is used in accordance with this Installation, Operation and Maintenance Manual
The manufacturer reserves all rights for the protection of its wiring diagrams, methods and names.
Translation of Manual for Installation, Operation and Maintenance is carried out in accordance with the
best knowledge. In the case of ambiguities, the Slovak version of the text prevails.
2.2. General safety warnings
The manufacturer developed and designed the equipment in such a way so that any risks were excluded if it
is used according to intention. The manufacturer considers it to be its obligation to describe the following
safety measures in order to exclude residual damages.
Operation of the appliance must be in compliance with all local codes and regulations.
Original packaging should be kept for the return of the appliance. Only the original packaging ensures
protection of the appliance during transport. If it is necessary to return the appliance during the guarantee
period, the manufacturer is not liable for damages caused by improper packaging.
Each time the appliance is used, the operator must make sure that it is functioning correctly and safely.
The user must fully understand the operation of the appliance.
The product is not intended for operation in areas with a risk of explosion.
If any problem occurs during use of the appliance, the user must inform his supplier immediately.
2.3. Electrical system safety warnings
The appliance must be connected to earth (grounded).
Before the appliance is plugged in, make sure that the mains voltage and mains frequency stated on the
appliance are the same as the power mains.
Prior to putting into operation it is necessary to check for possible damage of the equipment and
connected air and electric distributions. Damaged pneumatic and electric lines must be immediately
replaced.
Immediately disconnect the appliance from the mains (pull out mains plug) if a technical failure occurs.
During repairs and maintenance, ensure that:
- The mains plug is pulled out from the socket
- Pressure pipes are vented and pressure is released from the air tank.
The appliance must be installed by an approved, qualified technician.
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3. ALERT NOTICES AND SYMBOLS
In the Installation, Operation and Maintenance Manual and on packaging and product, the following labels or
symbols are used for important information:
Information, instructions and cautions for the prevention of damage to health or
materials
Caution! Dangerous electrical voltage
Read the user manual!
CE mark of compliance
Compressor is remote-controlled and may start without warning
Caution! Hot surface
Earth (ground) connection
Terminal for ground connection
Fuse
Alternating current
Handling mark on package – FRAGILE
Handling mark on package – THIS SIDE UP
Handling mark on package – KEEP DRY
Handling mark on package – TEMPERATURE LIMITATIONS
Handling mark on package – LIMITED STACKING
Mark on package – RECYCLABLE MATERIAL
4. STORAGE AND TRANSPORT
The compressor is shipped in cardboard that protects the appliance from damage during transport.
Caution! For transport, always use the original packaging and secure the compressor
in the upright position.
Protect the compressor from humidity and extreme temperatures during transport and storage.
A compressor in its original packaging can be stored 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 and recycle if possible.
Caution! Before moving or transporting the compressor, release all the air pressure
from the tank and hoses and drain the condensed water.
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5. TECHNICAL DATA
DK50 2x4VR/110
DK50 2x4VR/110S
Rated voltage /
frequency
V / Hz
3x400/50 3x400/50
Compressor output
at pressure of 6 bar
Lit.min-1
520 520
Compressor output at 6 bar with
dryer
MD
Lit.min
-1
430 430
NDL
400 400
Maximum compressor current
A
9.4 10.2
Maximum compressor current with dryer A
10.1 10.6
Motor output kW
2x2.2 2x2.2
Air tank capacity Lit.
110 110
Working pressure bar
6.0 – 8.0
6.0 – 8.0
Maximum operating pressure of safety valve bar
9.0 9.0
Noise L
pfA
[dB]
77 58
Mode of operation
Continuous S1 Continuous S1
Mode of operation with dryer
Continuous S1 Continuous S1
Compressor dimensions W x L x H
mm
1090x500x830 1260x795x1025
Dimensions
with dryer
W x L x H
MD
mm
1210x670x830
1550x795x1240
NDL 1210x770x1240
1550x795x1240
Weight
kg
136 218
Weight
with dryer
MD
kg
158 240
NDL
172 252
Air dryer performance
Atmospheric dew point
MD
°C
-20
Pressure dew point
NDL
- 35
Configuration pursuant to EN 60 601-1
Type B, class I.
Climatic conditions during storage and transport
Temperature : –25°C to +55°C, 24 h to +70°C
Relative air humidity : 10% to 90 % (no condensation)
Climatic operation conditions
Temperature : +5°C to +40°C
Relative air humidity : 70%
5.1. FAD efficiency correction for differences in elevation
FADcorrectiontable
FAD efficiency refers to conditions at an elevation of 0 mamsl: Temperature: 20°C
Atmospheric pressure: 101325 Pa
Relative humidity: 0%
Elevation[mamsl] 0‐1500 1501‐2500 2501‐3500 3501‐4500
FAD[l/min] FADx1 FADx0.8 FADx0.71 FADx0.60
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6. PRODUCT DESCRIPTION
6.1. Model variations and their uses
Compressors are the source of clean, oil-free compressed air used to drive dental appliances and
equipment.
Compressors models are designed for the following uses:
Dental compressors DK50 2x4VR/110 - are designed for independent installation in a suitable
environment.
Dental compressors DK50 2x4VR/110/M - are designed for independent installation in a suitable
environment and are equipped with an air dryer.
Dental compressors DK50 2x4VR/110S - are installed in cabinets with efficient noise mufflers and are
suitable for use in office environments.
Dental compressors DK50 2x4VR/110S/M - are installed in cabinets and are equipped with air dryers.
DK50 2x4VR/110 DK50 2x4VR/110/M (NDL) DK50 2x4VR/110S/M
DK50 2x4VR/110/M (MD) S110R
DRYER MD WITH COOLER DRYER NDL COOLER
Without additional filtration equipment, the compressed air from a compressor is not
suitable for the operation of breathing appliances or similar equipment.
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6.2. Optional accessories
Products may be equipped with optional accessories that are not
included with the basic product and must be ordered separately:
Filter regulator / set 604012967-000 /
The filter regulator filters out impurities in the compressed air down to a size
of 5 m. The use of this accessory on a compressor without a dryer partially
reduces moisture content in the supplied compressed air. Filtered
compressed air is suitable for use anywhere its parameters meet the
stipulated requirements. The regulator ensures a supply of output air at a
constant pressure (so long as the pressure value set on the regulator is not
higher than the switching pressure set on the pressure switch).
Regulator / set 604022073-000 /
The regulator ensures a supply of output air at a constant pressure (so long
as the pressure value set on the regulator is not higher than the switching
pressure set on the pressure switch).
Automatic condensate drain / set 604011998-000 /
The automatic condensate drain automatically drains condensate from the compressor's air tank based on a
pre-set time interval.
The drain automatically opens a solenoid valve at a pre-set time interval to drain condensate from the air
tank.
A timer is used to set the time between actuation of the solenoid valve (approximately 30 minutes).
The time between actuations of the solenoid valve can be adjusted to a lower value if excessive amount
of condensate is generated.
- The TEST button (2) is used to check the actuation of the solenoid valve, and when pushed the
solenoid valve should open (ON) and the time between actuations of the solenoid valve begins from this
point.
- The LED (1) lights up to signalize the valve is open(ON).
1
2
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7. FUNCTION
Compressor (Fig.1)
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 (9).
Safety valve (5) prevents the pressure in air chamber from rising above the maximal allowed value. The
drain valve (7) releases the condensate from the air nozzle. Compressed, dry and clean air is then ready for
additional use in the air tank.
Compressor with membrane dryer (MD) (Fig. 2)
The compressor (1) draws in air through an inlet filter (8) and compresses it through a check valve (3) into a
cooler (10). The air then passes through a filter (33) and micro-filter (34) into the dryer (35) with the dry and
clean air passing through a check valve (3) to the air tank (2). Condensate from the filter and micro-filter is
automatically released into a drainage vessel. The dryer ensures continuous drying of the compressed air.
Compressed, dry and clean air is then ready for additional use in the air tank.
Compressor with NDL dryer (Fig. 3)
The compressor (1) draws in air through an inlet filter (8) and compresses it through a check valve (3) into
the cooler (10). The air then proceeds through the condensate separator (15) and the drying chamber (11)
with the adsorbent media where moisture is removed and then on to the air tank (2). The adsorbent media
regenerates when the drying chamber is being evacuated, always after the compressor is switched off by the
pressure switch. The air is then released from the adsorption chamber via the open solenoid valve as it is
evacuated using dry compressed air. Air drying occurs in one chamber while regeneration occurs in the
other chamber. The mode of each chamber changes in regular cycles and the drying and regeneration
processes are then performed in the alternate chamber. Compressed, dry and clean air is then ready for
additional use. Constant output pressure is maintained by the pressure regulator (12).
The pressure switch (13) protects the dryer from damage if the compressor operates for an extended period
of time at low pressure (less than 5 bar)
Compressor cabinet (Fig. 4)
The soundproof cabinet itself is compact yet allows sufficient exchange of cooling air.
The fan (18) underneath the compressor aggregate and the cabinet fans (26) cool the compressor and the
space inside the cabinet. The fans operate when the compressor motor is running. The cooling fans
automatically start if the temperature in the cabinet reaches over 40°C, even when the compressor is not
running. The fans automatically switch off once the cabinet temperature drops to around 32°C.
An indicator (29) located on the front of the cabinet indicates maintenance is needed on the compressor with
the NDL dryer unit (see the Maintenance Interval chapter)
Make sure that nothing impedes the free flow of air under and around the compressor.
Never cover the hot air outlet on the top back side of the case.
If placing the compressor on a soft floor such as carpet, create space for ventilation
between the base and floor or the box and floor, e.g. underpin the footings with hard pads.
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Fig. 1 - Compressor
Fig.2- Compressor with membrane dryer (MD)
1. Compressor
2. Air tank
3. Check valve
4. Pressure switch
5. Safety valve
6. Pressure gauge
7. Condensate drain valve
8. Inlet filter
9. Solenoid valve
10. Dryer cooler
11. Adsorption dryer (NDL)
12. Pressure regulator (Optional accessories)
13. Pressure switch 2
14. Pressure relief valve
15. Condensate separator
16. Control valve
17. Check valve
18. Compressor fan
19. Box gas springs
20. Wall bump stop
21. Power supply cord
22. Pressure gauge hose
23. Angular screwing
24. -
25. Compressor wheel
26. Cabinet fan
27. Handle
28. Switch
29. Maintenance indicator
30. Cabinet pressure gauge
31. Temperature switch
32. Positioning truck
33. Filter
34. Micro-filter
35. Membrane dryer (MD)
36. Hour meter
17
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