Page 1
DK50 2V/50
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DK50 2V/50
NP-DK50 2V50-7_02-2016 MD - 2 - 02/2016
CO
NTENTS
IMPORTANT INFORMATI
ON ................................................................................................................. 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 ................................................................................................................................. 6
INSTALLATION ....................................................................................................................................... 8
8. USE ............................................................................................................................................. 8
9. INSTALLATION .......................................................................................................................... 9
10.WIRING DIAGRAMS ................................................................................................................ 11
11. PNEUMATIC DIAGRAM .......................................................................................................... 13
12.FIRST OPERATION ................................................................................................................. 14
OPERATION .......................................................................................................................................... 14
13.SWITCHING THE COMPRESSOR ON ................................................................................... 15
MAINTENANCE .................................................................................................................................... 15
14.MAINTENANCE SCHEDULE ................................................................................................. 15
15.MAINTENANCE ........................................................................................................................ 15
16.STORAGE ................................................................................................................................ 17
17.DISPOSING OF THE APPLIANCE .......................................................................................... 17
18.REPAIR SERVICE .................................................................................................................... 17
19.SOLVING PROBLEMS ............................................................................................................. 18
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IMPORTANT INFORMATION
1. CE MARKING
Produ
cts labeled with the CE mark of compliance meet the safety guidelines (93/42/EEC) of the European
Union.
2. W
ARNIN
GS
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 guaran
teed only if
origin
al 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 respon
sible
for the safe o
peration of the appliance. This guarantee does not cover damages originating from the use
of
acce
ssories or consumable material other than those specified or suggested by the manufacturer.
The manufacturer guarantees the safety, reliability and function of the appliance on
ly if:
- Installation,
new settings, amendments, extensions and repairs are performed by the manufacturer or
its repre
sentative, or a service provider authorized by the manufacture
r
- The applia
nce is used in accordance with this Installation, Operation and Maintenance Man
ual
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 regul
ations.
Original packaging should be kept for the return of the appliance. Only the original packaging ensure
s
prote
ction of the appliance during transport. If it is necessary to return the appliance during the guarante
e
perio
d, 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 sa
fely.
The user must fully understand the operation of the applianc
e.
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
applia
nce are the same as the power ma
ins.
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 immediatel
y
r
eplaced
.
Immediately disconnect the appliance from the mains (pull out mains plug) if a tech
nical failure occurs.
During repairs and maintenance, en
sure that:
- The mains plu
g is pulled out from the socket
- Pressure pipe
s 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:
Attention, see
instructions for use
Cautio
n, risk of electric shock
C
onsult instructions for use
CE mark of compliance
Comp
ressor is remote-controlled and may start without warning
Cautio
n! Hot surface
Ea
rth (ground) connection
Termin
al for ground connection
Fuse
Alternating cu
rrent
Han
dling mark on package – FRAGILE
Han
dling mark on package – THIS SIDE UP
Handling mark
on package – KEEP DRY
Han
dling mark on package – TEMPERATURE LIMITATIONS
Han
dling mark on package – LIMITED STACKING
Mark on pa
ckage – RECYCLABLE MATERIAL
4.
STORAGE AND TRANSP
ORT
The co
mpressor is shipped in cardboard that protects the appliance from damage during transp
ort.
Cau
tion! 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 2V/50 DK50 2V/50S
Nominal voltage /
frequency
V / Hz
230 / 50
3x400/50
230 / 50
3x400/50
Efficiency of compressor at over-pressure 6 bar
Lit.min
-1
134 134
Efficiency of compressor with dryer at overpressure 6 bar
Lit.min
-1
110 110
Maximal current
A
7.4
4.5
7.6
4.7
Maximal current of compressor with dryer
A
7.6
4.7
7.8
4.9
Motor performance kW
1.1
1.2
1.1
1.2
Air tank capacity Lit.
50 50
Pressure range bar
6,0 – 8,0 6,0 – 8,0
Maximum operating pressure of safety valve
bar
12,0 12,0
Sound level L
pfA
[dB]
71 56
Mode of operation of compressor
CONTINUAL S 1 CONTINUAL S 1
Mode of operation of compressor
with dryer
CONTINUAL S 1 CONTINUAL S 1
Dimensions of compressor /
of compressor with dryer
w x l x h
mm
595x475x770 /
580x585x775
750x715x1015
Weight of compressor /
of compressor with dryer kg
56 / 61 108 / 114
Drying point of compressor Atmospheric
condensation point
-20°C
Version EN 60 601-1
Appliance of type B, class I
Climat
ic 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
2V/50 - are designed for independent placement of the compressor in any
area.
Dental compressors DK50 2V/50/M - are designed for independent placement of the compressor in any
area and feature a membrane dryer.
Dental compressors DK50 2V/50S - feature soundproof boxes suitable for placing in the dentist‘s
surgery.
Dental compressors DK50 2V/50S/M - feature soundproof boxes and a membrane dryer.
DK50 2V/50 SKRINKA
Withou
t additional filtration equipment, the compressed air from a compressor is not suitable
for the operation of breathing appliances or similar equipment.
7. FUNCTIO
N
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 (10).
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, clean air free from oil traces is
stored in the air tank ready for use.
Compressor with membrane dryer (Fig.3)
The compressor unit (1) pulls in outside air through the inlet filter (8) and compresses it through the cooler
(11), filter (13) and micro-filter (12) to the dryer (9) and on through the check valve (3) as dry clean air in the
air tank (2). Condensate from the filter and micro-filter is automatically drained into the collection vessel. The
dryer provides continuous drying of the compressed air. Dry, clean compressed air free from oil traces is
stored in the air tank ready for use.
Compressor box (Fig.4)
The soundproof box is compact yet allows sufficient exchange of cooling air. It can be placed in a dentist’s
office. The ventilator (14) 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 a prolonged operation of the compressor,
when temperature in a casing rises above 40°C, the cooling ventilator of the casing (22) shall be switched
on automatically. After the area in housing is cooled down under ca 32°C, the ventilators shall be
automatically switched off.
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 dryer
1. Compressor motor
2. Air tank
3. Check
valve
4. Pr
essure sw
itch
5. Safet
y
valve
6. Manometer
7. Condenser
ou
tlet
8. Input filter
9. Dr
ye
r
10. Solenoid valve
11. Cooler
12. Micro-filter
13. Filter
14. Compres
sor fan
15. Wheels
16. Check
valve
17. Stopper
18. Bottle
19. Magnetic bottle holder
20. Pulling
system
21. Wall stopper
22. Box fan
23. Thermo
switch
24. Sw
itch
25. Manometer
26.
Connector of casi
ng
27.
Hose of manomet
er
28. Connecting
reinfo
rcement
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Fig.3 - Box
INSTALLATION
8. USE
The appliance must be installed and operated in a dry, well ventilated and dust-free area where ambient
temperature is within the range of +5°C to +40°C and relative air humidity does not exceed 70%. Otherwise,
failure-free operation of the compressor cannot be guaranteed. The compressor must be installed so that it
is accessible at all times for operation and maintenance. Please ensure that the appliance label is
accessible.
The appliance must stand on a flat, sufficiently stable base. See paragraph 5 (Technical data) when
positioning or lifting the compressor.
Compressors cannot be exposed to outdoor environments. The appliance cannot be used in moist or wet
environments. Do not use the compressor in the presence of explosive gases, dust or combustible liquids.
Before connecting the compressor to medical 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.
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Unpacking
Handling
Fig.4
9. INSTALLATION
Only qualified personnel can install and start up the appliance and train operating
personnel in its correct use and maintenance. Installation and training of all operators
shall be confirmed by the installer’s signature on the certificate of installation.
Prior to installation, ensure that the compressor is free of all transport packaging and
stabilizers to avoid any risk of damage to the product.
Caution! When in operation, the compressor is hot. Burns or fire may result if contact is
made by the operator or any flammable material.
Electric cord for connection to electric mains and air hoses may not be broken. The power
cord may not be exposed to pulling, pressure and excessive heat.
9.1. Placement of the compressor
Dental compressor DK50 2V/50, DK50 2V/50/M
(Fig.4)
After removing all packaging material, place the product on the floor and remove stabilization parts Y (Detail
A). Connect output hose with end-piece to the appliance. Plug the mains cord plug into a socket.
Dental compressor in box DK50 2V/50S (Fig.3, Fig.4)
After unpacking, place the product onto the floor in a room, release it from packaging materials and remove
fixation parts (Y) - detail A. Place a wall end stop (21) 2 pcs on compressor casing in the rear, upper part of
the casing and fit in the casing on the required place.The end-stops shall ensure the sufficient distance of the
casing from the wall for thorough ventilation. For fitting the compressor in the place to the casing it is
necessary to disassemble the casing door and take off the connecting reinforcement (28) in the front bottom
part of the casing. Protrude the pressure hose under the casing and fix it to the appliance in a suitable
manner. Grasp the compressor at its handle and using the transport mechanism (20) and the built-in
castors (15) place it to the casing. Embed the hose (27) of manometer (25) of the casing to fast-on coupling
on the compressor, place back the connecting reinforcement (28) and connect output pressure hose to the
compressor.
Connect the connector (26) of casing to the compressor and connect the electric mains plug to mains socket.
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DK50 2V/50
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Fig.6
Fig.7
In case of disassembling the compressor it is necessary to
disconnect the connector of soundproofing box by using the
screwdriver.
(
Fig.5)
Dental compressor in DK50 2V/50S/M, (Fig.3, Fig.4)
After removing all packaging material, place the product on the floor and remove stabilization parts Y (Detail
A). Place the compressor into housing similarly as in the previous paragraph. Prior to placing the
compressor into housing, protrude house for condensate drain via hole in housing and connect it to a bottle
(18). Magnetic holder (19) with a vessel (18), for entrapping the condensate from the dryer may be fitted
onto any vertical part of casing, or from front on its door. When fixing the holder with a vessel at the housing
side it is necessary to consider a space of at least 11 cm between the housing and furniture. Distance
smaller than the specified one may cause problem with handling of the vessel.
9.2. Compressed air outlet
(Fig.6)
Lead the pressure hose from the output of compressed air (1) to the
appliance – dental set.
9.3. Electrical connection
Plug the electrical cord into the mains.
The appliance is equipped with a grounded plug. Make sure this connection complies
with local electrical codes. The mains voltage and frequency must comply with the data
stated on the appliance label.
(Fig.7)
Keep the socket easily accessible to ensure that in an emergency the
appliance can be safely disconnected from the mains.
Connection to the power distribution box must be max.16 A.
The connection of the earth ground pin 6mm (1) with other
appliances must be completed in accordance with local electrical
codes. The female socket (2), which is not included in the standard
set, is an optional accessory.
Electrical cable may not contact the hot parts of a compressor. Insulation could be
damaged!
If any electrical cord or air hose is damaged it must be replaced immediately.
Fig.5
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DK50 2VS / 50
1/N/PE ~ 230V 50..60Hz
40°C
ST1
13
24
FA1
N
p >
SP1
A2 2 4
A113
KM1
EV1M1
1
M
B1
C
YV1
XC1
2/L
N
1/L
PE
PEX1PE 2 3
N
N1
HL1
Q
40°C
ST2
EV4
XC1
PH*
0000
h
DK50 2V / 50
1/N/PE ~ 230V 50..60Hz
40°C
ST1
1
3
24
FA1
N
p >
SP1
A2 2
4
A113
KM1
EV1M1
1
M
B1
C
YV1
XC1
2/L
N
1/L
PE
PEX1PE 2 3
N
N
1
XC1
PH*
0000
h
N U PE
N U PE
ELECTRIC OBJECT 1ST CAT.
TYPE B
* - only for 10 bar
ELECTRIC OBJECT 1ST CAT.
TYPE B
* - only for 10 bar
DK50 2VS / 50 / MD
40°C
ST1
1
3
24
FA1
N
p >
SP1
A224
A1 1 3
KM1
EV1M1
1
M
B1
C
YV1
XC1
2/L
N
1/L
PE
PEX1PE 2 3
N
N
1
HL1
Q
40°C
ST2
EV4
PH*
0000
h
DK50 2V / 50 / MD
13
24
FA1
N
p >
SP1
A224
A113
KM1
M1
1
M
B1
C
YV1
XC1
2/L
N
1/L
PE
PEX1PE 2 3N
N
1
PH*
0000
h
N U PE
N U PE
EV3
40°C
ST1
EV1 EV3
* - only for 10 bar
* - only for 10 bar
10. WIRING DIAGRAMS
SP Pressure switch
EV1 Fan of compressor
ST1 Thermo switch
EV3 Fan of dryer
M1 Motor of compressor
FA1 Breaker
YV1 Solenoid valve
KM1 Contactor
X1 Terminal
PH1* Hour counter
XC1 Connector
Q Switch
HL1 Glowlamp
ST2 Thermo switch of box
EV4 Fan of box
CB1 Capacitor
1/N/PE ~ 230V 50..60 Hz
ELECTRIC OBJECT OF 1ST. CAT TYPE B
1/N/PE ~ 230V 50..60 Hz
ELECTRIC OBJECT OF 1ST. CAT TYPE B
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DK50 2VS / 50
DK50 2V / 50
FA1
N
KM1
WVPENU
1
3
24
5
6
A224
A1 1 3650304
EV1
3
M
M1
150°C
XC1
2/L
N
1/L
PE
PEX1PE 2 3
N
N
1
PH*
0000
h
HL1
Q
40°C
ST2
EV4
XC1
YV1
p >
SP1
40°C
ST1
FA1
N
KM1
WVPENU
1
3
24
5
6
A2 2
4
A1 1 3650304
EV1
3
M
M1
150°C
XC1
2/L
N
1/L
PE
PEX1PE 2 3N
N1
PH*
0000
h
YV1
p >
SP1
40°C
ST1
3/N/PE ~ 400/230 V 50 Hz
3/N/PE ~ 400/230 V 50 Hz
MAINS TN-S [TN-C-S]
ELECTRIC OBJECT 1ST CAT.
TYPE B
MAINS TN-S [TN-C-S]
ELECTRIC OBJECT 1ST CAT.
TYPE B
* - only for 10 bar
* - only for 10 bar
DK50 2VS / 50 / MD
DK50 2V / 50 / MD
FA1
N
KM1
WVPENU
1
3
24
5
6
A224
A113650304
EV1
3
M
M1
150°C
XC1
2/L
N
1/L
PE
PEX1PE 2 3N
N
1
PH*
0000
h
HL1
Q
40°C
ST2
EV4
YV1
p >
SP1
40°C
ST1
* - only for 10 bar
FA1
WVPENU
1
3
24
5
6
XC1
2/L
N
1/L
PE
PEX1PE 2 3
N
N1
EV3
N
KM1
A224
A113650304
EV1
3
M
M1
150°C
PH*
0000
h
YV1
p >
SP1
40°C
ST1
EV3
22. 11. 2013
* - only for 10 bar
SP Pressure switch
EV1 Fan of compressor
ST1 Thermo switch
EV3 Fan of dryer
M1 Motor of compressor
FA1 Breaker
YV1 Solenoid valve
KM1 Contactor
X1 Terminal
PH1* Hour counter
XC1 Connector
Q Switch
HL1 Glowlamp
ST2 Thermo switch of box
EV4 Fan of box
3/N/PE ~ 400/230 V 50 Hz
MAINS TN-S [TN-C-S]
ELECTRIC OBJECT 1ST CAT.
TYPE B
3/N/PE ~ 400/230 V 50 Hz
MAINS TN-S [TN-C-S]
ELECTRIC OBJECT 1ST CAT.
TYPE B
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1
2
6
5
7
8
9
3
4
7
8
9
5
12
4
13
14
15
6
6
3
10
11
1
2
11. PNEUMATIC DIAGRAM
DK50 2V/50/M
DK50 2V/50
1 Input filter
2 Compressor motor
3 Compressor Fan
4 Solenoid valve
5 Safety valve
6 Check valve
7 Pressure switch
8 Air tank
9 Manometer
10 Cooler
11 Cooler Fan
12 Dryer
13 Filter
14 Microfilter
15 Bottle
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12. FIRST OPERATION
(Fig.8)
Make sure that all stabilizers used during transport were removed.
Check that all pressurized air line connections are secure.
Connect to the mains.
Start compressor at pressure switch (2) by turning switch (3) to position “I.“
For kompressor in the box turn the switch (24) (Fig.3) at the front part of the soundproof box to the position
“I“ – green light indicates that the appliance is on.
Compressor - At first operation the air tank is pressurized until it reaches a preset level when the
compressor automatically switches off. As the air is used, the compressor works in automatic mode,
switched on or off by the pressure switch.
Compressor with dryer - during operation the accessory dryer removes moisture from the compressed air
passing through it.
The compressor is not equipped with an emergency power supply.
OPERATION
In case of emergency, disconnect the compressor from the mains (pull out the mains
plug).
The compressor has hot surfaces.
Burns or fire may result if contact is made.
During prolonged operation of the compressor, the temperature in the box may increase
to over 40°C. At this point the cooling fan automatically switches on. After cooling the
space to under 32°C, the ventilator switches off.
Automatic start: when pressure in the tank drops to the pressure switch’s lower limit
level, the compressor automatically switches on. The compressor automatically
switches off after reaching the pressure switch’s upper limit level.
Compressor with dryer
A correct function of the drier depends on the compressor’s operation and no attendance is required. The
pressure vessel need not be sludged, because the pressure air entering the air chamber is already dried.
It is forbidden to alter the working pressures of pressure switch set by manufacturer. The operation
of the compressor at working pressure lower than the switching pressure demonstrates the overload
of the compressor (high air consumption) by the appliance, leakages in pneumatic distributions,
failure of aggregate or drier.
Prior connecting drier to air chamber, that was used with compressor without drier, it is necessary to
clean interior surface of air chamber and perfectly remove condensed liquid. Then interconnect
electric part of drier with compressor according to wiring diagram in accord with valid regional
regulations.
Required drying performance can only be achieved when following the defined operating
conditions!
Drying performance will decline and the achieved dew point will drop if the dryer is operated
at any pressure below the minimum working pressure!
Dryer operation at a pressure of 0.5 Bar below the minimum working pressure can lower the
dew point at the outlet by more than 10°C!
The dryer will be irrevocably damaged and need replacement if operated at any temperature
above the maximum working temperature!
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Fig.8
3
5
2
4
13. SWITCHING THE COMPRESSOR ON
(Fig.8)
Switch on the compressor at the pressure switch (2) by turning the knob
(3) to position “I.”, (for compressor in the box switch (24) Fig.3 on the
front part of the compressor box),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 cutoff pressure the
compressor turns off automatically and the cycle is repeated. Check the
value of switching-on and switching-off pressure on pressure gauge.
The values may be within a tolerance of 10%. Air pressure in air
chamber must not exceed maximal permitted operation pressure.
Never tamper with the pressure switch (2). Adjustments are not allowed. The pressure
switch (2) has been set by the manufacturer and further setting of switching on and off
pressure may be carried out only by a qualified expert trained by the manufacturer.
MAINTENANCE
14. MAINTENANCE SCHEDULE
Notice!
The operating entity is obliged to ensure that all tests of the equipment are carried out repeatedly at
least once within every 24 months (EN 62353) or in intervals as specified by the applicable national
legal regulations. A report must be prepared on the results of the tests (e.g.: according to EN 62353,
Annex G), including the measurement methods used.
Maintenance that must be
performed
Chapter Time interval Performed by
1 x day
Release condensate
- At high air humidity
- Compressor without air drier
Compressors with air drier
14.1
operating staff
1 x week
1 x year • Check safety valve
14.2
qualified technician
• Replace filter and micro-filter elements
14.4
14.5
operating staff
• Check tightness of joints
Overall examination of device
Service
documentation
qualified technician
• Clean the cooler ribs and the fan 14.6 qualified technician
1 x 2 years
• Perform “Repeated Test” according
to EN 62353
14
qualified technician
1 x 2 years or after 5000
hours
• Replacement of the input filter and
prefilter
14.3
qualified technician
15. MAINTENANCE
Repair work beyond normal maintenance can be performed only by qualified personnel or
the manufacturer’s representative.
Use only spare parts and accessories approved by the manufacturer.
Prior to any maintenance or repair work, switch off the compressor and disconnect it from
the mains (pull out the mains plug).
For permanently high efficiency of drying, it is necessary to maintain the whole appliance,
and mainly ventilator clean – regularly clean the surface of ventilator and cooling fins of
cooler.
Page 16
DK50 2V/50
NP-DK50 2V50-7_02-2016 MD - 16 - 02/2016
Fig.10
TO ENSURE THAT THE COMPRESSOR WORKS CORRECTLY, PERFORM THE FOLLOWING
MAINTENANCE TASKS AT REGULAR INTERVALS (CHAPTER 14).:
15.1. Condensation drain valve
Compressors (Fig.9)
During regular use, release condensation from the pressure tank.
Switch off the compressor at the mains. Reduce air pressure in the
appliance to max. 1 bar by releasing air via a connected device.
Place the vessel under release valve and open the drain valve (1).
Wait until condensation is fully drained from the pressure tank.
Close drain valve (1).
Compressors with air dryer
In the case of a regular operation condensate is automatically excreted via air dryer and it is entrapped in a
bottle. Take out the bottle from a holder, release cap and pour out the condensate.
15.2. Safety valve check
(Fig.8)
When the compressor is operated for the first time, make sure that the safety valve is working properly. Turn
screw (4) of safety valve (1) several rotations to the left until the safety valve releases air. Let the safety
valve blow out for only a few seconds. Turn screw (4) to the right until it seats, closing the valve.
The safety valve must never be used for depressurizing the air tank. It could damage the
safety valve. The valve is set to the maximum permitted pressure by the manufacturer.
Adjustments are not permitted.
Warning! Compressed air can be dangerous. Wear eye protection when blowing air out.
15.3.
Replacement of the input filter and prefilter
(Fig.10)
At the lid of the compressors crankcase is an
input filter (1) and prefilter (3).
Replacing of the input filter:
Hand pull the rubber stopper (2).
Remove used and dirty filter.
Input new filter and set rubber stopper.
Replacing of the prefilter:
Hand pull prefilter (3).
Replace old prefilter with new.
1
Fig.9
Page 17
DK50 2V/50
02/2016 - 17 - NP-DK50 2V50-7_02-2016 MD
3
Fi
g
.12
1
2
15.4. Replace the filter element
(Fig.11)
Loosen a safety-catch (1) on a filter regulator by pulling it down.
Turn the container slightly (2) and pull out.
Unbolt the filter holder (3).
Change the filter bed (4), bolt the filter holder.
Put the filter container on and secure it by turning it until the safetycatch is fixed.
Filter Order number Filter insert Order number
AF30 F02C 6 A PU 025200276-000
AF 30P-060S 5
m
025200061-000
15.5. Replacing the micro-filter element
(Fig.12)
Loosen a safety-catch (1) on a micro filter by pulling it down.
Turn the container slightly (2) and pull out.
Unbolt the filter (3).
Change and bolt the filter bed.
Put the filter container on and secure it by turning it until the safetycatch is fixed.
15.6. Clean the cooler ribs and the fan
For permanently high efficiency, it is necessary to maintain the whole equipment and especially the
cooler´s fan and the cooler itself clean – 1x year suck or blow settled dust out with compressed air from the
surface of the cooling ribs and the fan.
16. STORAGE
If the compressor will not be used for a prolonged time period, drai
n any condensate from the air tank. Then
turn on the compressor for 10 minutes, keeping the drain valve open (1) (Fig.9). Switch off the compressor
by switch (3) at pressure switch (2) (Fig.8), close the drain valve and disconnect the appliance from the
mains.
17.
DISPOSING OF THE APPL
IANCE
•
Disconnect the appliance from the main
s.
•
Release air pressure in the pressure tank by opening the drain valve (1) (Fig.9
).
•
The components of the product are non
-toxic.
•
Dispose of the appliance following all environmental regulations
.
18. REPAIR SERVICE
Guarantee
d and post-guarantee repairs must be done by the manufacturer, its authorized representative, or
service personnel approved by the supplier.
The manufacturer reserves the right to make changes to the appliance without notice. Any changes made
will not affect the functional properties of the appliance.
Micro-filter Order number Filter insert Order number
AFM30-F02C-6-A-PU 025200277-000
AFM 30P-060AS 0,3 m
025200076-000
1
2
4
3
Fi
g
.11
Page 18
DK50 2V/50
NP-DK50 2V50-7_02-2016 MD - 18 - 02/2016
19. SOLVING
PROBLEMS
Caution! Before proceeding, depressurize the air tank to zero and disconnect the
appliance from the mains.
For permanently high efficiency of drying, it is necessary to maintain the whole appliance,
and mainly ventilator clean – regularly clean the surface of ventilator and cooling fins of
cooler.
Troubleshooting can be performed only by qualified personnel.
FAILURE POSSIBLE CAUSE REMEDY
Compressor does not
start
No voltage in pressure switch Check voltage in socket
Check fuse – replace faulty one
Loosen terminal – tighten it
Check power cord – replace faulty one
Disconnected winding of motor, damaged
thermal protection
Faulty capacitor
Seizure of piston or another rotary part
Pressure switch does not switch on
Replace motor or re-wind it
Replace capacitor
Replace damaged parts
Check the function of pressure switch
Compressor often
switches on
Air leak in pneumatic distribution system
Leaking check valve
Greater volume of condensed liquid in
pressure vessel
Check pneumatic distribution system – seal
loose joint
Clean valve, replace seals, replace valve
Drain condensed liquid
Prolonged running of
compressor
Air leak in pneumatic distribution system
Worn piston ring
Contaminated input filter and prefilter
Defective solenoid valve
Check pneumatic distribution system – seal
loose joint
Replace worn piston ring
Replace contaminated filters with the new ones
Repair or change the valve
Compressor is noisy
(knocking, metal
noises)
Damaged bearing of piston, piston rod,
motor bearing
Loose or cracked spring
Replace damaged bearing
Replace damaged spring
Dryer doesn´t dry
(condensed water in
the tank)
inoperative cooler ventilator replace ventilator
check supply of electric energy
Damaged dryer Replace dryer
Dirty automatic condensate drain on filters clean / replace
Dirty filter and micro-filter elements Replace old elements with new elements
The internal
surfaces of the air tank must be cleaned and all condensed liquid must be removed after a dryer
failure.
Check the dew point of the air leaving the air tank (see Chapter 5 - Technical Data) in order to protect
connected equipment from damage!
Page 19
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ANNEX TO NP- DK50 2V/50
Annex is inte
gral part of Instructions for use
!
DK50 2V/50
- 406201005-002
DK50 2V/50S
-
406202005-001
DK50 2V/50/M
-
4062010B5-002
DK50 2V/50S/M
-
4062020B5-001
DK50 2V/50
-
406201005-003604021607604021607
DK50 2V/50/M
-
4062010B5-003
CONTENTS
TECHNICAL DATA
..................................................................................................................................... 2
FUNCTION .................................................................................................................................................. 4
WIRING DIAGRAMS ................................................................................................................................... 9
MAINTENANCE ........................................................................................................................................ 13
PARTS LIST .............................................................................................................................................. 14
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TECHNICAL DATA
(Replaced - not apply chapter 5 in NP DK50 2V/50)
DK50 2V/50/M DK50 2V/50S DK50 2V/50 DK50 2V/50S/M
Nominal voltage / frequency
V / Hz
230 / 50 230 / 50 230 / 50 230 / 50
Efficiency of compressor at overpressure 6 bar Lit.min
-1
90 **
140 140
90**
Maximal current of compressor
A
8 7.6 7.4
8.2
Motor performance kW
1.1 1.1 1.1
1.1
Air tank capacity Lit.
50 50 50 50
Pressure range
bar
6.0 – 8.0 6.0 – 8.0 6.0 – 8.0 6.0 – 8.0
Maximum operating pressure of
safety valve bar
12.0 12.0 12.0 12.0
Sound level L
pfA
[dB]
71 56 71
56
Mode of operation of compressor
Continual S 1 Continual S 1 Continual S 1 Continual S 1
Model of dryer
NDL020
_ _
NDL020
Dimensions of compressor
w x l x h mm
595x585x770 750x715x1015 595x475x770
595x585x770
Weight of compressor kg
66 108 56
118
Weight of compressor packaged in
cardboard kg
78 123 68 133
Drying point of compressor
Pressure dew
point to - 40°C
- -
Pressure dew point
to - 40°C
Version EN 60 601-1
Appliance of type
B, class I
Appliance of type
B, class I
Appliance of type
B, class I
Appliance of type
B, class I
(*)Part of the efficiency of compressor (cca 25%) is used for regeneration of the dryer
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Repl
aced - not apply chapter 5 in NP DK50 2V/50)
DK50 2V/50
406201005-003
DK50 2V/50/M
4062010B5-003
Nominal voltage / frequency
V / Hz
230 / 50 230 / 50
Efficiency of compressor at overpressure 8 bar Lit.min
-1
100 90 **
Maximal current of compressor
A
7.4 8
Motor performance kW
1.1 1.1
Air tank capacity Lit.
50 50
Pressure range
bar
8.0 – 10.0 8.0 – 10.0
Maximum operating pressure of
safety valve bar
12.0 12.0
Sound level L
pfA
[dB]
71 71
Mode of operation of compressor
Continual S 1 Continual S 1
Model of dryer
_
NDL020
Dimensions of compressor
w x l x h mm
595x475x770 595x585x770
Weight of compressor kg
56 66
Weight of compressor packaged in
cardboard kg
68 78
Drying point of compressor
-
Pressure de
w
point to - 40°C
Version EN 60 601-1
Appliance of type
B, class I
Appliance of type
B, class I
(*)Part of the efficiency of compressor (cca 25%) is used for regeneration of the dryer
(*) Maximal adjustment of outlet air pressure on regulator is 8 bar
Page 22
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FUNCTION
DK50 2V/50 - 40620
1005-002
1. Compressor motor
2. Air tank
3. Check valve
4. Pressure switch
5. Safety valve
6. Manometer
7. Input filter
8. Air output
9. Solenoid valve
10. Quick coupling
11. Plug
12. Hose of manometer (applies for connecting to the box )
13. Filterregulator
14. Botlle
15. Holder
16. Plug
Fig. A
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DK50 2V/50S - 406202005-001
1. Compress
or motor
2. Air tank
3. Check valve
4. Pressure switch
5. Safety valve
6. Manometer
7. Input filter
8. Air output
9. Solenoid valve
10. Quick coupling
11. Plug
12. Hose of manometer
13. Regulator
14. Botlle
15. Holder
16. Plug
17. Autodrain
Fig. B
Page 24
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DK50 2V/50/M - 4062010B5-002
DK50 2V/50S/M - 4062020B5-001
1. Compressor motor
2. Air tank
3. Check valve
4. Pressure switch
5. Safety valve
6. Manometer
7. Input filter
8. Air output
9. Solenoid valve
10. Quick coupling
11. Plug
12. Hose of manometer
13. Cooler
14. Dryer
15. Control panel
16. Holder
17. Bottle
18. Silencer
19. Regulator
20. Magnetic holder
21. Pressure switch 2 (Condor)
Fig. C
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DK50 2V/50 - 406201005-003
1. Compressor motor
2. Air tank
3. Check valve
4. Pressure switch
5. Safety valve
6. Manometer
7. Input filter
8. Air output
9. Solenoid valve
10. Quick coupling
11. Plug
12. Hose of manometer (applies for connecting to the box )
13. Regulator
14. Hour meter
Fig. D
Page 26
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DK50 2V/50/M - 4062010B5-003
1. Compressor motor
2. Air tank
3. Check valve
4. Pressure switch
5. Safety valve
6. Manometer
7. Input filter
8. Air output
9. Solenoid valve
10. Quick coupling
11. Plug
12. Hose of manometer
13. Cooler
14. Dryer
15. Control panel
16. Holder
17. Bottle
18. Silencer
19. Regulator
20. Pressure switch 2 (Condor)
21. Hour meter
Fig. E
Page 27
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1/N/PE ~ 230V 50..60Hz
ELECTRIC OBJECT 1ST. CAT.
TYPE B
40°C
ST1
1
3
24
FA1
N
p >
SP1
A224
A1 1 3
KM1
N U
EV1M1
1
M
B1
C
YV1
DRYER
YV2 YV3
Q2Q1 Q3 Q4
LNI1I2 I3
I4 I5
I6 I7
I8
12121212
A1
SM
XC1
2/L
N
1/L
PE
EV3
PE
PEX1PE 2 3
N
N
1
p >
SP2
11 12
40°C
ST1
1
3
24
FA1
N
p >
SP1
N
1PE
X1
PE
A2 2
4
A1 1 3
KM1
N U2PE
EV1M1
1
M
B1
C
YV1
HL1
Q
40°C
ST2
EV4
XC1
3
1/N/PE ~ 230V 50..60Hz
ELECTRIC OBJECT 1ST CAT.
TYPE B
WIRING DIAGRAMS
DK50 2V/50/M
- 406201
0B5-002
DK50 2V/50S - 406202005-001
M1 Motor of compressor
FA1 Breaker
ST1 Thermo switch
SP1,SP2 Pressure switch
EV1, EV2 Fan of compressor
EV3 Fan of cooler
YV1 Solenoid valve
YV2,YV3 Solenoid valve of dryer
A1 Control unit
X1 Terminal
with fuse
s
C
B1 Capacitor
SM Reed switch
M1 Motor of compressor
FA1 Breaker
ST1 Thermo switch
SP1 Pressure switch
EV1, EV2 Fan of compressor
EV3 Fan of cooler
YV1 Solenoid valve
YV2,YV3 Solenoid valve of dryer
A1 Control unit
X1 Terminal
with fuse
s
CB1
Capacitor
SM Reed
sw
itch
XC1 Connector
Q Switch
HL1 G
lowlamp
ST2 Thermo switch of box
Page 28
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40°C
ST1
1
3
24
FA1
N
p >
SP1
N
1PE
X1
PE
A224
A1
1
3
KM1
2
1/N/PE ~ 230V 50..60Hz
ELECTRIC OBJECT 1ST. CAT.
TYPE B
EV1M1
1
M
B1
C
YV1
9. 3. 2012
1/N/PE ~ 230V 50Hz
HL1
Q
40°C
ST2
EV4
ELECTRIC OBJECT 1ST. CAT.
TYPE B
40°C
ST1
1
3
24
FA1
N
p >
SP1
A2 2
4
A1 1
3
KM1
N U
EV1M1
1
M
B1
C
YV1
DRYER
YV2 YV3
Q2Q1 Q3 Q4
LNI1 I2I3I4 I5 I6I7I8
1
212121
2
A1
SM
XC1
2/L
N
1/L
PE
EV3
PE
PEX1PE 2 3
N
N
1
p >
SP2
11 12
DK50 2V/50 - 406201005-002
DK50 2V/50S/M - 4062020B5-001
SP1 Pressure switch
EV1 Fan of compressor
ST1 Thermo switch
M1 Motor of compressor
FA1 Breaker
YV1 Solenoid valve
KM1 Contactor
X1 Terminal
M1 Motor of compressor
FA1 Breaker
ST1,ST2 Thermo switch
SP1,SP2 Pressure switch
EV1,EV3 Fan of compressor
EV4 Fan of cooler
YV1 Solenoid valve
YV2,YV3 Solenoid valve of dryer
A1 Control unit
X1 Terminal
with fuse
s
C
B1 Capacitor
SM Reed switch
XC1 Socket
H
L
1 G
lowlam
p
Page 29
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11 / 14
1/N/PE ~ 230V 50..60Hz
ELECTRIC OBJECT 1ST. CAT.
TYPE B
SM
h
+
-
~
~
PH
ZELIO LOGIC
SP1
A224
A113
KM1
N U
EV1M1
1
M
B1
C
YV1
DRYER
YV2 YV3
Q2Q1 Q3 Q4
LNI1 I2I3I4 I5 I6I7I8
1
212121
2
A1
XC1
2/L
N
1/L
PE
EV3
PE
PEX1PE 2 3
N
N
1
p >
11
12
SP2
40°C
ST1
1
3
24
FA1
p >
h
+
-
~
~
1/N/PE ~ 230V 50..60Hz
ELECTRIC OBJECT 1ST. CAT.
TYPE B
SP1
A224
A113
KM1
EV1M1
1
M
B1
C
YV1
XC1
2/L
N
1/L
PE
PEX1PE 2 3N
N
1
40°C
ST1
1
3
24
FA1
N
p >
XC1
PH
N U PE
DK50 2V/50/M
- 406201
0B5-003
DK50 2V/50 - 406201005-003
M1 Motor of compressor
FA1 Breaker
ST1 Thermo switch
SP1,SP2 Pressure switch
EV1, EV2 Fan of compressor
EV3 Fan of cooler
YV1 Solenoid valve
YV2,YV3 Solenoid valve of dryer
A1 Control unit
X1 Terminal
with fuse
s
C
B1 Capacitor
SM Reed switch
PH Hour
meter
SP1 Pressure switch
EV1 Fan of compressor
ST1 Thermo switch
M1 Motor of compressor
FA1 Breaker
YV1 Solenoid valve
KM1 Contactor
X1 Terminal
PH Hour meter
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CONTROL PANEL SCREENS FOR THE NDL DRYER
-Supplier
-Supplier contact
-Operating hours
-Chamber A (B) in operation
Status messages
- Low pressure
a) From compressor start-up until pressure reaches
5.5 bar
b) During operation if pressure drops below 5.1 bar
- 24-hour regeneration mode
Dryer regeneration for 10 minutes is automatically
switched on after 24 hours of compressor operation.
- 2 year maintenance
-
Calculated when equipment is switched on
- 8,000 hour maintenance
Calculated using the number of operating hours
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MAINTENANCE
Replacement of filter of filter-regulator
Loosen a safety-catch (1) on a filter regulator by pulling it down.
Turn the container slightly (2) and pull out.
Unbolt the filter holder (3).
Change the filter bed (4), bolt the filter holder.
Put the filter container on and secure it by turning it until the safety-catch is
fixed.
Filter Order number Filter insert Order number
AW20-F02CH-A-PU 025200221-000
AF 20P-060S 5 m
025200113-000
Dryer servicing
(Fig. C,D)
Product servicing should only be carried out by authorised, competent and suitably trained personnel.
A dryer service should take place every 2 years or 8,000 hours of operation (whichever occurs first). Service kits are
available which include: replacement desiccant cartridges, seals and valves, depending on service interval.
See User Guide - Heatless Desiccant Air Dryer!
Maintenance schedule
Maintenance that must be performed Time interval Performed by
Replacement of filter and micro- filter 1 x year operating staff
Replace 2 x desiccant cartridges and gasket
seals
8, 000 hours (or 2 years)
service
Replace 2 x desiccant cartridges and gasket
seals.
16, 000 hours (or 4 years)
service
Replace 2 x desiccant cartridges, gasket
seals and all valves.
24, 000 hours (or 6 years)
service
1
2
4
3
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PARTS LIST
DK50 2V/50 ................................................................................... 406201005-002 1x
Installation, Operation and Maintenance
Manual
NP-DK50 2V/50 1x
Fuse T0,8A/35 038100006-000 2x
Input filter of filter-regulator AF20-060S 025200113-000 1x
DK50 2V/50/M .................................................................................... 4062010B5-002 1x
Installation, Operation and Maintenance
Manual
NP-DK50 2V/5
0
1x
Fuse T0,8A/35 038100006-000 2x
DK50 2V/50S ................................................................................... 4062020000-001 1x
Installation, Operation and Maintenance
Manual
NP-DK50 2V/50 1x
Fuse T0,8A/35 038100006-000 2x
Wall stopper 023000276-000 2x
Transport mechanism 603021540-000 1x
Set for discharge of condensate 604011122-000 1x
Push-in jumper 033190119-000 1x
Lockout-cap 062000759-000 1x
DK50 2V/50 S/M .................................................................................... 4062020B5-001 1x
Installation, Operation and Maintenance
Manual
NP-DK50 2V/5
0
1x
Fuse T0,8A/35 038100006-000 2x
Wall stopper 023000276-000 2x
Transport mechanism 603021540-000 1x
Bottle with magnetic holder 604031448-000 1x
Silencer 604012097-000 1x
Hose 1500 062000719-000 2x
Push-in jumper 033190119-000 1x
Lockout-cap 062000759-000 1x
DK50 2V/50 ................................................................................... 406201005-003 1x
Installation, Operation and Maintenance
Manual
NP-DK50 2V/50 1x
Fuse T0,8A/35 038100006-000 2x
DK50 2V/50/M .................................................................................... 4062010B5-003 1x
Installation, Operation and Maintenance
Manual
NP-DK50 2V/50
1x
Fuse T0,8A/35 038100006-000 2x
Set for discharge of condensate 604031533-000 1x
Packing of basic equipment checked by
................................................................................
.................................................................................
Date of production
.................................................................................
Signature
Page 33
NP-DK50 2V50-7_02-2016 MD
112000166-000
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