Function - EKOM DK50 4VR/50 Die Anleitung Zur Installation, Bedienung Und Wartung

DK50 4VR/50
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 (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, 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 (19) into
a cooler (13). The air then passes through a filter (17) and micro-filter (16) into the dryer (15) 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 adsorption dryer (M2) (Fig. 3)
The compressor (1) draws in air through an inlet filter (8) and compresses it through a check valve (19) into
the cooler. The compressed air then passes to the condensate separator (27) through a control valve (28)
through the drying chamber (29) with the adsorbent media (34) where moisture is removed and then out via
the outlet filter (32) and the check valve (3) and into 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 (35) 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 in the air
tank.
Compressor with NDL dryer (Fig. 4)
The compressor (1) draws in air through an inlet filter (8) and compresses it through a check valve (19) into
the cooler. The air then passes through the dryer chamber (25) containing the adsorbent media where
moisture is removed and then out via the check valve (3) and into 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.
The pressure switch (26) 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. 5)
The soundproof cabinet itself is compact yet allows sufficient exchange of cooling air. The fan (9) below the
compressor itself cools the compressor and operates whenever the compressor's motor is running. The
cabinet's cooling fans (45) automatically start if the temperature in the cabinet reaches over 40°C if the
compressor has been running for an extended period of time. The fans automatically switch off once the
cabinet temperature drops to around 32°C.
An indicator (46) 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.
09/2014 - 7 - NP-DK50 4VR50-3_09-2014