Operation; Switching The Compressor On - EKOM DUO 2V Anleitung Zur Installation, Bedienung Und Wartung

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.
In the case of a prolonged operation of a compressor temperature in housing raises above
40°C and then cooling ventilator of a housing shall be automatically switched 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
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.
 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.
Required drying performance can only be achieved when following the defined operating
conditions!
Drying performance will decline and the achieved dew point will drop if the dryer is
operated at any pressure below the minimum working pressure!
Dryer operation at a pressure of 0.5 Bar below the minimum working pressure can lower
the dew point at the outlet by more than 10°C!
The dryer will be irrevocably damaged and need replacement if operated at any
temperature above the maximum working temperature!

12. SWITCHING THE COMPRESSOR ON

(Fig.12)
Switch on the compressor using mains switch on the front side of the
equipment housing, the compressor shall start running and lead air into air
chamber under a pressure. 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 (Fig.1 -
pos.30). The values may be within a tolerance of 10%. The suction unit is
switched on from the dentist's suction aparatus. The operation of an
exhauster is indicated by white indicator lamp.
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.
NP-DUO-4_11-2015-MD - 38 -
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2
6
5
Fig.12
DUO
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4
11/2015