EKOM DUO Notice D'installation, De Mise En Service Et D'entretien page 26

8. FUNCTION
Compressor with suction unit (Fig.1)
The compressor motor (1) sucks atmospheric air via input filter (8) and it compresses it via check valve (3) to
air tank (2). The appliance takes the compressed air from air chamber via output valve (43), thus pressure
shall drop to the switching-on pressure set on the pressure switch (4), at which the compressor shall be
switched on. The compressor compresses air to the air chamber up to the value of switching-off pressure,
when the compressor shall be switched off. After compressor aggregate is switched off, pressure hose shall
be pressure-release solenoid valve (13). Safety valve (5) prevents the pressure in air chamber from rising
above the maximal allowed value. Condensate is released from air chamber via drain valve (7). Compressed
and clean air free from oil traces is in an air chamber ready for further use.
Suction aggregate (42) (for DUO2 – two aggregates) sucks air, thus it creates negative pressure in sucking
pipe that is connected to the equipment and it is a source of negative pressure for exhausting of foreign
matters from the working field of a doctor. The sucked air is lead out via exhausting pipe that ends outside
the working space of the operators. Sucking aggregate (42) is controlled directly from the set using voltage
of 24V AC/DC or signal "I" from a switch ( model "T" ) lead to the exhauster switching block (21).
Compressor with suction unit and dryer (Fig.2)
The compressor (1) draws in air through a filter (8) and sends it to the air dryer in compressed form. The air
proceeds through the cooler (15) and through the dryer chamber (9) with dessicant (16). The moisture is
captured in a built-in filter (17) and check valve (3), sending clean, dry air into the air tank (2). The adsorber
is automatically regenerated in a regeneration cycle via a valve (24) with a nozzle after every switching off of
a compressor using pressure switch. It comes to the reduction of pressure in adsorption chamber via open
solenoid valve (14), with its concurrent blowing with dried air. Adsorber is regenerated and entrapped water
from a chamber is pushed out via a valve. Dry, clean compressed air free from oil traces is stored in the air
tank ready for use.
Suction aggregate (42) (for DUO2 – two aggregates) sucks air, thus it creates negative pressure in sucking
pipe that is connected to the equipment and it is a source of negative pressure for exhausting of foreign
matters from the working field of a doctor. The sucked air is lead out via exhausting pipe that ends outside
the working space of the operators. Sucking aggregate (42) is controlled directly from the set using voltage
of 24V AC/DC or signal "I" from a switch ( model "T" ) lead to the exhauster switching block (21).
Compressor with condensation unit with filter (Fig.3)
The compressor (1) draws in air through a filter (8) and compresses it through a check valve (3) into an air
tank (2). The compressed air from the nozzle flows through a cooler (10) that cools the compressed air. The
condensed moisture is trapped in the filter (11) and automatically separates as condensate (12). Dry, clean
compressed air free from oil traces is stored in the air tank ready for use.
Suction aggregate (42) (for DUO2 – two aggregates) sucks air, thus it creates negative pressure in sucking
pipe that is connected to the equipment and it is a source of negative pressure for exhausting of foreign
matters from the working field of a doctor. The sucked air is lead out via exhausting pipe that ends outside
the working space of the operators. Suction aggregate (42) is controlled directly from the set using voltage of
24V AC/DC or signal "I" from a switch ( model "T" ) lead to the exhauster switching block (21).
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 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. In the case of a prolonged operation of a
compressor, when temperature in a housing raises above 40°C, cooling ventilator (19) and (41) shall be
automatically switched on. 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.
NP-DUO-2
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DUO
06/2009