EKOM DK50 PLUS Manuel De L'utilisateur page 21

DK50 PLUS, DK50 2V
PRODUCT FUNCTIONALITY
Compressor (Fig. 1)
The air pump (1) draws in atmospheric air through an inlet filter (8) and compresses it through a non-
return valve (3) into an air tank (2) from which the device draws compressed air. If the pressure in
the air tank drops to the switch-on pressure, the pressure switch (4) turns on the compressor and
the compressor supplies compressed air into the air tank until it reaches the switch-off pressure,
when the compressor switches off. The pressure hose is vented through the relief solenoid valve
(13) once the air pump is shut off. The safety valve (5) prevents the pressure in the air tank from
rising above the maximum allowed value. The drain valve (7) drains condensate from the air tank.
Compressed, oil-free filtered air is stored in the air tank ready for use.
Condensate must be drained from the air tank at regular intervals (see Chapter 19.1).
Compressor with membrane dryer (Fig. 2)
The air pump (1) draws in air through an inlet filter (8) and compresses it, feeding it to the cooler (14)
through the filter (15) and the check valve (3) into the dryer (9), and feeds the clean and dry air into
the air tank (2). A part of the air is released from the dryer with the captured moisture, which is
manifested as a light air stream along the body of the dryer (9). Condensate from the filter is
automatically drained at regular intervals into the collecting bottle via the condensate drain solenoid
valve (16). The dryer ensures continuous drying of the compressed air. The drain valve (7) drains
condensate from the air tank when drying performance is checked. Compressed, oil-free filtered air
is stored in the air tank ready for use.
For the membrane dryer to work as intended, the dryer is connected directly to the air tank without
the use of a check valve. As the membrane dryer contains selective membrane fibres, there is a
small amount of air leakage through them (about 0.5 bar/30 min).
As a result, there is a gradual, slow drop in pressure even when there is no demand for compressed
air (from the air tank), however, this is not a malfunction.
The pressure vessel does not need to be drained.
Compressor cabinet (Fig. 3)
The soundproof cabinet provides compact covering of the compressor, allowing sufficient exchange
of cooling air. With its design It can be placed in a dentist's office as a part of furniture. The fan under
the air pump of a compressor provides cooling of compressor and it is in operation at the same time
with an engine of the compressor. After prolonged use the temperature in the cabinet may rise
above 40°C, causing the cooling fan blower to automatically turn on. After cooling the cabinet area
down to 32°C the fan blower turns off automatically. Door of the casing with right opening may be
changed to left opening (see Chapter 12.2).
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 cabinet.
If placing the compressor on a soft floor such as carpet, create space for
ventilation between the base and floor or the cabinet and floor, e.g. underpin the
footings with hard pads.
The 8-10 bar compressor model is equipped with an hour counter.
02/2023 - 21 - NP-DK50 PLUS, 2V-18_02-2023-MD