EKOM DK-50 2x2V/110, Instructions For Use, Service Manual

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INSTRUCTIONS FOR USE
11/2010 - 41 - NP-DK50 2V-5_04-2011_A
Fig.13
3
5
2
1
4
3
5
2
1
4
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 M1a
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.

For correct operation of a drier it is necessary to:

Observe the operation of the compressor in intermittent mode up to 60%. However, the time of continuous
operation of the compressor should not be longer than 10 minutes.

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.

Leave the compressor connected to electric mains (do not switch off pressure switch and do not
disconnect power cord) – if the humidity sensor assesses air as “insufficiently dry”, it shall regenerate the
drying chamber refill by intake of air from air chamber in which pressure drops and it may come to
switching on the compressor several times. After the drier is regenerated, the operation of the compressor
shall be automatically halted.

Should regeneration takes longer than 1 hour and there is no air consumption, it shall be necessary to
verify whether:
- Regeneration takes place,
-
Air goes out from the outlet of solenoid valve of the drier via condensate drain,
-
There is no failure of the compressor or drier
Compressor with dryer M2

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.
11. SWITCHING THE COMPRESSOR ON
(Fig.13)
Switch on the compressor at the pressure switch (2) by
turning the knob (3) to position “I.” (for compressor in the
box switch on also switch (29) Fig.6 , Fig.7, 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.
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