EKOM DK50 DE User manual

GENERAL INFORMATION
2 NP-DK50 DE-LF-9_02-2019
CONTENTS
1.GENERAL INFORMATION ........................................................................................... 3
PURPOSE ................................................................................................................ 3
CONTRAINDICATIONS AND SIDE-EFFECTS ........................................................ 3
OPERATOR'S RESPONSIBILITY FOR PATIENT SAFETY ..................................... 3
MARKINGS ............................................................................................................... 3
WARNINGS .............................................................................................................. 3
General safety warnings .................................................................................. 4
Electrical system safety warnings .................................................................... 4
WARNING NOTICES AND SYMBOLS ..................................................................... 5
USE .......................................................................................................................... 6
STORAGE AND TRANSPORT ................................................................................. 6
2.EQUIPMENT DESCRIPTION ........................................................................................ 7
3.TECHNICAL DATA ....................................................................................................... 9
4.OPERATION ................................................................................................................ 11
INSTALLATION AND FIRST OPERATION ............................................................ 11
Removal of transport stabilizers .................................................................... 11
Compressed air connection ........................................................................... 12
Electrical connection ...................................................................................... 12
First operation................................................................................................ 12
Adjusting the output air pressure ................................................................... 13
OPERATION ........................................................................................................... 13
Switching the compressor on ........................................................................ 13
Running the compressor ............................................................................... 13
Cleaning the compressor ............................................................................... 13
5.MAINTENANCE .......................................................................................................... 14
REPAIRS AND SERVICE ....................................................................................... 14
Cover removal ............................................................................................... 14
MAINTENANCE SCHEDULE ............................................................................... 14
Checking tightness of joints and inspecting the equipment ........................... 15
Replacing filter elements ............................................................................... 16
Changing suction filter elements.................................................................... 16
Securing the equipment before transport ...................................................... 17
SHUTDOWN ........................................................................................................... 17
EQUIPMENT DISPOSAL ........................................................................................ 17
6.TROUBLESHOOTING ................................................................................................ 18
7.SPARE PARTS ........................................................................................................... 19
8.ELECTRIC AND PNEUMATIC DIAGRAMS................................................................ 20
WIRING DIAGRAM ................................................................................................. 20
PNEUMATIC DIAGRAM ......................................................................................... 20
9.ELECTROMAGNETIC COMPATIBILITY DECARATION ........................................... 22
10.ANNEX ........................................................................................................................ 95
INSTALLATION RECORD ...................................................................................... 95

GENERAL INFORMATION
NP-DK50 DE-LF-9_02-2019 3
1. GENERAL INFORMATION
PURPOSE
The EKOM DK50 DE is a medical air compressor that supplies clean, oil-
free compressed air for use with medical ventilators.
CONTRAINDICATIONS AND SIDE-EFFECTS
There are no contraindications or side-effects known.
OPERATOR'S RESPONSIBILITY FOR PATIENT SAFETY
Instructions for use is an integral part of the equipment and must be kept
with the compressor. Careful review of this manual will provide information
necessary for correct operation of the equipment.
Rx only
US Federal law restricts the sale of this device by or on the order of a
physician.
MARKINGS
Products marked with the CE mark of compliance meet the safety
requirements of the European Union (93/42/EEC).
WARNINGS
 The safety of operating personnel and trouble-free operation of the
equipment are ensured only if original parts are used. Only accessories
and spare 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 and
functionality of the equipment.
 The warranty does not cover damages resulting from the use of
accessories or consumable materials other than those recommended by
the manufacturer.
 The manufacturer assumes responsibility for the safety, reliability and
function of the equipment only if:
- Installation, calibration, amendments, extensions and repairs are
performed by the manufacturer, one of its representatives or a service
provider authorized by the manufacturer
- The equipment is used in accordance with the Installation, Operation and
Maintenance Manual

GENERAL INFORMATION
4 NP-DK50 DE-LF-9_02-2019
 The Installation, Operation and Maintenance Manual accurately describes
the design of the compressor and its compliance with safety and technical
standards. The manufacturer reserves all rights to its wiring diagrams,
procedures and names.
General safety warnings
The equipment is designed to operate safely when used correctly. Please
note the following safety measures to avoid injury or damage.
 Equipment operation must comply with all local codes and regulations.
 Original packaging should be kept for the possible return of the unit. Only
original packaging ensures optimal protection of the equipment during
transport. If it is necessary to return the equipment during the warranty
period, the manufacturer is not liable for damages caused by incorrect
packaging.
 The user must immediately notify the supplier if any problem occurs during
the use of the equipment.
 This product is not intended for use in areas where there is a risk of an
explosion. Do not operate the compressor in the presence of flammable
anesthetics.
 Never feed oxygen or nitrous oxide into the compressor. Compressor
components are not approved for oxygen or nitrous oxide use.
Electrical system safety warnings
 The equipment must be connected to ground. I order to assure proper
grounding, connect the compressor to a receptacle marked "hospital
grade."
 Before the compressor is plugged in, make sure that the voltage and
frequency of the mains specified on the equipment are the same as the
power mains.
 Before operating, check for possible damage to the equipment and any
connections. Damaged pneumatic and electrical lines must be replaced
immediately.
 If a technical failure occurs, immediately disconnect the equipment from
the mains (pull out the main power plug).
 During repairs and maintenance, ensure that:
- The main power plug is removed from the power socket
- Compressed air lines are disconnected
- All pressure has been released from the air tank
 Only a qualified technician can install this equipment.

GENERAL INFORMATION
NP-DK50 DE-LF-9_02-2019 5
WARNING NOTICES AND SYMBOLS
The following symbols are used for important information in the Installation,
Operation and Maintenance Manual and on packaging and the product:
Attention, see instructions for use
Caution, risk of electric shock
Consult instructions for use
CE mark of compliance
Caution, hot surface
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
Alternating current
Ground connection
Equipotentiality
Fuse

GENERAL INFORMATION
6 NP-DK50 DE-LF-9_02-2019
USE
 The equipment can be installed and operated only in a dry, ventilated and
dust-free area. Climatic conditions for operation - see Technical data.
 The compressor must stand on a flat and stable base.
 The compressor must not be exposed to rain. The equipment must not be
used in humid or wet environments. Never use the compressor in the
presence of flammable liquids or gases.
 Before connecting the compressor to respiration equipment, make sure
that it meets the requirements of the respiration equipment. Refer to the
Technical data for this purpose.
 Any use other than the compressor‘s intended use is not considered to be
safe. The manufacturer is not responsible for any damages that result if
the compressor is used for any other purpose. Risk is exclusively
assumed by the operator/user.
STORAGE AND TRANSPORT
The compressor is shipped from the factory in transport packaging with the
pump stabilized, protecting it from damage during transport.
For transport, always use the original packaging and secure the compressor
in the upright position.
Protect the compressor from humidity, contamination and extreme
temperatures during transport and storage. A compressor in its original
packaging should be stored in a warm, dry and dust-free area.
Keep the packaging material, if possible. If not, dispose of the packaging
material in an environmentally-friendly way. Cardboard can be recycled.
Prior to transport it is necessary to secure the motor inside the
compressor (Chapter 5).

EQUIPMENT DESCRIPTION
NP-DK50 DE-LF-9_02-2019 7
2. EQUIPMENT DESCRIPTION
1. OUT - compressed air outlet
2. Pressure regulator
3. Output air pressure gauge (with accuracy of ± 5%)
4. Hour meter
5. Switch, power connector and fuses
6. Power cord anchor
7. Equipotential connector
8. Compressor
9. Suction filter
10. Fan
11. Safety valve
12. Filter (5 μm) with automatic condensate drain
13. Supporting base
14. Cooler
15. Regulator safety cover
The equipment uses an oil-free piston compressor (8) driven by a low-maintenance
electric motor. Compressed air is cooled in the cooler (14) where condensed water is
separated into a separate tank (12). Compressor working pressure is set using the safety
valve (11). Constant output pressure is maintained by the pressure regulator (2).

EQUIPMENT DESCRIPTION
8 NP-DK50 DE-LF-9_02-2019

TECHNICAL DATA
NP-DK50 DE-LF-9_02-2019 9
3. TECHNICAL DATA
TYPE DK50 DE
VERSION low flow
Output flow at pressure
3.5 bar (51 psig) L/min 20
Voltage / Frequency / Nominal
current V/Hz/A 230/50-60 / 2.3
110-120/60 / 4.4
Air filtration m 5
Pressure dew point at 3 bar, 20°C, 50%
Relative air humidity 5°C (9°F) below the ambient temperature
Outlet connection DISS 1160-A (3/4"-16 UNF)
Sound level dB(A) 48
49 / 60 Hz
Mode of operation Continuous - S1
Separation of condensed water Automatic
Output pressure 3.0 bar (43 psig)
Adjustable to max. 3.5 bar (51 psig)
Pressure range 5 bar ( 72.5 psig )
Adjustment of output air pressure Pressure regulator
Dimensions of compressor w x d x h 270 x 395 x 400 mm (10.5 x 15.5 x 16 in )
Dimensions of packaging w x d x h 350 x 460 x 500 mm ( 14 x 18 x 19.5 in )
Net weight 23 kg ( 51 lbs )
Gross weight 29 kg ( 64 lbs )
Implementation according to EN 60601-1, EN
12021 Class I.
Classification acc. to MDD 93/42 EEC, 2007/47
EC II b

TECHNICAL DATA
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Climatic conditions for storage and transport
Temperature –25°C to +55°C (-13°F to +131°F), 24 hrs +70°C (+158°F)
Relative air humidity 10% to 90% (no condensation)
Relative air humidity for seaworthy packing 10% to 100% (with condensation)
Climatic conditions for operation
Temperature +15°C to +40°C (+59°F to +104°F)
Relative air humidity up to +70%
IPX0 Rating
FAD efficiency correction for differences in elevation
FAD correction table
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] FAD x 1 FAD x 0.8 FAD x 0.71 FAD x 0.60

OPERATION
NP-DK50 DE-LF-9_02-2019 11
4. OPERATION
INSTALLATION AND FIRST OPERATION
Do not use the compressor immediately after unpacking as it will not
adjust to the ambient temperature.
Only qualified personnel can install the compressor and put it into
operation for the first time. The installer shall train the operating
personnel in the use and routine maintenance of the equipment.
Installation and training of personnel should be acknowledged by the
installer‘s signature on the installation certificate.
Before starting the compressor for the first time the stabilisation
elements used to support the equipment during transport must be
removed. Starting the compressor without removing the stabilisation
elements can permanently damage the equipment!
The compressor does not contain a backup power supply.
It is forbidden to block the ventilation openings located in the upper
part of the equipment!
If the compressor is equipped with a main source of air, the standby air
source must be available.
ANY MODIFICATION OF THIS EQUIPMENT IS FORBIDDEN!
If this equipment is used nearby other instruments, the equipment must
be observed in order to verify normal operations in the configuration it
will be used.
Instruments may be affected electro-magnetically!
Removal of transport stabilizers

OPERATION
12 NP-DK50 DE-LF-9_02-2019
Remove the four screws from the side of the equipment. Remove the cover
and disconnect the ground wire.
Remove the two (2) M6 screws market with the red warning washers and
remove the stabilisation elements
Keep the screws and stabilisation elements in the event the compressor is
transported at a later time.
Connect the grounding wire and reattach the cover.
Compressed air connection
The given appliance or respiratory apparatus should be connected to the
OUT (1) quick coupler, as this is the outlet for compressed air.
The hose connecting the compressor to the respiration equipment
must not pass through a cold environment i.e. placed on the ground. It
should be as short as possible with no kinks (this may cause water to
condense inside the hose).
Electrical connection
The compressor comes with a plug containing an appropriate
protective contact (ground.) Adhere to local electrical regulations. The
voltage and frequency of the mains must comply with the
specifications on the data label.
The electrical cord must not be stressed or have any tension exerted
upon it, and must always be free.
 The socket must be accessible for safety reasons so that the equipment
can be safely disconnected from the power supply in case of an
emergency.
 The relevant current circuit must be protected.
 Connection of the ground connection (7) to other equipment must adhere
to local electrical regulations.
 Fasten the electrical cord through the holder (6).
First operation
 Make sure that the stabilizing screws used during transport were
removed.
 Check that the connection to the compressed air supply is correct.
 Check for proper connection to the main power supply.
 Switch on the pressure switch (5) to position “I”.
The compressor will be operational once it is put into operation.

OPERATION
NP-DK50 DE-LF-9_02-2019 13
During equipment operation condensed water is released from the
compressed air circuit through the automatic separator in the filter and
drained to the evaporation tank.
Adjusting the output air pressure
The manufacturer has pre-set the output air pressure to 3 bar. If needed the
output air pressure can be adjusted by turning the handle on the pressure
regulator (2). The safety cover (15) must be removed before adjusting the
output pressure. Push up the regulator knob and adjust the setting; once set,
push it back down to secure its position. Reinstall the safety cover!
The maximum allowed output air pressure is 3.5 bar. Damage to respiration
equipment may occur at higher outlet air pressures due to the presence of
condensed water in the compressed air exiting the equipment.
OPERATION
In case of emergency, switch the equipment off at the switch and pull
out the main power plug.
Switching the compressor on
The compressor is switched on at the main power switch (1) by putting it in
position "I".
Running the compressor
The compressor runs permanently once switched on. Condensed water
removed from the compressed air evaporates from the evaporation tank back
into the surrounding environment. The pressure gauge displays the outlet air
pressure.
Cleaning the compressor
To clean the compressor, use a detergent that contains no abrasives,
chemical solvents or other corrosive agents.

MAINTENANCE
14 NP-DK50 DE-LF-9_02-2019
5. MAINTENANCE
REPAIRS AND SERVICE
Warranty and extended warranty repairs are to be completed by the
manufacturer or a service provider authorized by the manufacturer.
The manufacturer reserves the right to modify the equipment in any
way that will not alter the function or the operation of the equipment.
Only a qualified technician or the Customer Service Department of the
manufacturer may perform repairs that go beyond routine maintenance.
Use only spare parts and accessories approved by the manufacturer.
Prior to any maintenance or repairs, switch off the compressor and
disconnect it from the mains (pull out the main power plug).
Cover removal
- Remove the four screws from the side of the equipment.
- Remove the cover
- Disconnect the grounding conductor
- Reassemble using the opposite order
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 Page Time interval To be
performed by
Replace filters in
filter 14 Every 4000 hours Qualified expert
Test the tightness of
joints and inspect
the equipment
13 After two years Qualified expert
Replace piston
complete with piston
rings, O-rings and
bearing
Service
documentation Every 8000 hours Qualified expert
Replace suction
filter 14 Every 8000 hours Qualified expert
Perform “Repeated
Test” according
to EN 62353
12 1 x 2 years Qualified expert

MAINTENANCE
NP-DK50 DE-LF-9_02-2019 15
Checking tightness of joints and inspecting the equipment
Test for leakage:
 Disconnect the outlet hose from the quick coupling OUT (1); compressed
air consumption will stop.
 Switch off the compressor
 Use soapy water to check for leaks in connections
 Tighten or re-seal joints as necessary.
Inspect the equipment:
 Check the status of the compressor motor for balanced operation or noise.
 Check the condition of the hangers above the pump.
 Check fan functionality.
 Check the working pressure values. Make sure the control knob on the
pressure regulator (2) and the relief valve (11) are securely closed. The
knob must be pulled up before setting the pressure or pushed down once
the pressure has been set. Turn the pressure regulator (2) knob in the (+)
direction until its maximum position is reached. Turn on the compressor
and set the air consumption to around 10 L/min. Check the working
pressure on the pressure gauge is at 5 bar; if this value needs to be
changed, adjust the pressure using the knob on the relief valve (11). Turn
this knob (2) to set the output pressure (normally 3 bar) at consumption of
around 10 L/min.
 Check the condition of filter (12). With regular operation, condensate
drains automatically. Verify this function by comparing the level of
condensate in the tank to the scale line indicating the maximum level. If
the level of condensate is above the scale line, replace the faulty parts.
 Examine the pump for:
- Defects in the crankcase
- Free movement of the crank shaft
 If necessary, replace any faulty parts.

MAINTENANCE
16 NP-DK50 DE-LF-9_02-2019
16
Replacing filter elements
Prior to servicing the equipment, reduce the pressure to zero and
disconnect the equipment from the main power supply.
 Unscrew the cover and pull it out using the enclosed wrench (16).
 Unscrew the filter holder.
 Replace the filter and screw the filter holder
into place.
 Screw the cover back in place.
Spare filtration pad:
Plastic (5 μm) (12) AF20P-060S Item 025200113
If the water release system becomes clogged, disassemble the release valve
(f), clean the outlet, remove the float (b) with a lever mechanism (c, d, and e)
from the tank, clean all components with a soap solution and then
reassemble.
Changing suction filter elements
 Raise the clasps on the cover (9) and remove the cover.
 Replace the filter element. Filters that are only slightly dirty can be cleaned
using compressed air. Filters can be washed.
 Reposition the cover.
Replacement parts:
Suction filter 03 POLYESTER, No. 025200126

MAINTENANCE
NP-DK50 DE-LF-9_02-2019 17
Securing the equipment before transport
The equipment must be secured before any type of transport. Proceed using
the opposite order of the procedure shown in Chapter 4 in the section for
releasing the compressor.
SHUTDOWN
If the compressor is not going to be used for a long period of time,
disconnected it from the main power supply and release the pressure.
EQUIPMENT DISPOSAL
 Disconnect the equipment from the main power supply.
 Release the pressure.
 Dispose of the equipment according to local regulations.
 Parts used in this product have no negative impact on the environment
when disposed of properly.

TROUBLESHOOTING
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6. TROUBLESHOOTING
Prior to servicing the equipment, reduce the pressure to zero and
disconnect the equipment from the main power supply.
Only trained service personnel can perform the activities listed in the
troubleshooting guide.
FAILURE POTENTIAL CAUSE SOLVING COMMON PROBLEMS
Compressor does
not start
Problem with electrical power source
Main breaker is off
Check voltage in socket
Check fuses – replace faulty fuse
Loosen terminal – tighten it
Check the electrical cord - replace defective
cord
Damaged motor winding, damaged
thermal protection
Replace the motor
Capacitor failure Replace capacitor
Seized piston or other rotating part Replace damaged parts
Low compressor
performance
Incorrect working or output pressure
settings Adjust to stipulated pressure
Air leak in compressed air distribution
system
Check compressed air distribution system –
seal loose joint
Excessive air consumption Do not exceed maximum flow
(see Technical Data)
Worn piston rings Replace worn piston rings
Plugged suction filter element Replace contaminated element
Plugged filter element Replace contaminated element
Low compressor
output pressure
Incorrect working or output pressure
settings Adjust to stipulated pressure
Air leak in compressed air distribution
system
Check compressed air distribution system –
seal loose joint
Excessive air consumption Do not exceed maximum flow (see Technical
Data)
Worn piston assembly Replace the piston assembly
Plugged suction filter element Replace contaminated element
Plugged filter element Replace contaminated element
Motor has
stopped - thermal
motor protection
has tripped
Ventilation openings are covered Uncover ventilation openings
Cooling fans are not working Replace the defective fan
Equipment is hot, space is not
ventilated Secure suitable conditions
Seized piston or other rotating part Replace damaged parts
Compressor is
noisy (knocking,
metal noises)
Damaged piston bearing, piston rod,
motor bearing Replace damaged bearing
Failed (cracked) hanger spring Replace the damaged hanger
Water leaking
from outlet
Hose from the equipment is too long
or on the ground Shorten the hose
Malfunctioning filter float system Clean or replace float system
Incorrect working or output pressure
settings Adjust to stipulated pressure
Excessive air consumption Do not exceed maximum flow (see Technical
Data)

SPARE PARTS
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7. SPARE PARTS
 Filtration elements AF20P-060S 025200113
 Fuse
version 230V T6.3A 038100004
 Insertion DISS 1160-A 024000261
 suction filter 03 POLYESTER 025200126

ELECTRIC AND PNEUMATIC DIAGRAMS
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8. ELECTRIC AND PNEUMATIC DIAGRAMS
WIRING DIAGRAM
EV1,EV2 Fan
YV1 Solenoid valve
M1 Elektric motor
Cb1 Capacitor
PH1 Hour counter