background image

 

 

  

  

 

DK50 

4VR/50

 

NP-DK50 4VR50-11_04-2018 

- 20 -    

04/2018

 

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  

 

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  

 
 

13. 

SWITCHING THE COMPRESSOR ON  

(Fig.9) 
Switch  on  the  compressor  at  the  pressure  switch  (2)  by  turning  the 
knob (3) to position “I.” (for compressor in the box switch (26) Fig.4), 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. 

 

 
 
 
 

Fig

.9 

1

 

 

Summary of Contents for DK50 4VR/50

Page 1: ......

Page 2: ...5 TECHNICAL DATA 5 6 PRODUCT DESCRIPTION 6 7 FUNCTION 8 INSTALLATION 12 8 USE 12 9 INSTALLATION 12 10 WIRING DIAGRAMS 16 11 PNEUMATIC DIAGRAM 18 12 FIRST OPERATION 19 OPERATION 20 13 SWITCHING THE COM...

Page 3: ...rsion of the text prevails 2 2 General safety warnings The manufacturer developed and designed the equipment in such a way so that any risks were excluded if it is used according to intention The manu...

Page 4: ...age TEMPERATURE LIMITATIONS Handling mark on package LIMITED STACKING Mark on package RECYCLABLE MATERIAL 4 STORAGE AND TRANSPORT The compressor is shipped in cardboard that protects the appliance fro...

Page 5: ...70x1015 Dimensions with dryer W x L x H MD mm 580x635x790 NDM 580x635x790 Weight kg 70 128 Weight with dryer MD kg 81 139 NDM 89 147 Air dryer performance Atmospheric dew point MD C 20 Pressure dew po...

Page 6: ...independent installation in a suitable environment Dental compressors DK50 4VR 50 M are designed for independent installation in a suitable environment and are equipped with an air dryer MD NDM Denta...

Page 7: ...000 The regulator ensures a supply of output air at a constant pressure so long as the pressure value set on the regulator is not higher than the switching pressure set on the pressure switch Automati...

Page 8: ...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 ads...

Page 9: ...10 Compressor wheel 11 Hour meter 12 Dryer cooler 13 Plug 14 Membrane dryer MD 15 Micro filter 16 Filter 17 Check valve 18 Magnetic bracket 19 Plug 20 Condensate vessel 21 Outlet valve 22 Exhaust muff...

Page 10: ...DK50 4VR 50 NP DK50 4VR50 11_04 2018 10 04 2018 Fig 3 Compressor with adsorption dryer NDM...

Page 11: ...DK50 4VR 50 04 2018 11 NP DK50 4VR50 11_04 2018 Fig 4 Cabinet...

Page 12: ...Refer to the technical data of the product for this purpose When a unit is to be built in classification and evaluation of compatibility must be done by the manufacturer or supplier of the product to...

Page 13: ...e supporting bracket 30 in the front part of the cabinet Pass the pressure hose and mains plug from the compressor through the opening in the lower rear section of the cabinet Connect the cabinet conn...

Page 14: ...K50 4VR 50 M configuration to DK50 4VR 50S M or vice versa the following steps must be performed Prior to any maintenance or repair work switch off the compressor and disconnect it from the mains pull...

Page 15: ...M DK50 4VR 50S M to DK50 4VR 50 M install jumper Z jumper on use jumper Z Art 033190119 000 to make the connection to terminal strip X1 Fig 1 4 connect the cord to socket X2 Fig 5 X2 X3 DK50 4VR 50 M...

Page 16: ...ith the data stated on the appliance label Fig 8 Keep the socket easily accessible to ensure that in an emergency the appliance can be safely disconnected from the mains Connection to the power distri...

Page 17: ...PE I3 I4 I5 EKOM FLAIRMO ABSOLUTE TABULKA PREPOJOV PODLA ZAKAZNIKOV E5 X1 3 N L X3 2 1 4 3 5 2 1 4 3 6 5 04 03 A2 A1 Q11 M 6 150 C 1 3 2 4 2 1 p 40 C B1 B2 E1 E2 PE K1 3 N PE 400 V 50 Hz MAINS TN S T...

Page 18: ...essor without box Bridge OFF compressor with box 2 6 5 7 8 9 3 1 1 1 1 11 PNEUMATIC DIAGRAM DK50 4VR 50 1 Inlet filter 2 Compressor 3 Fan 5 Safety valve 6 Check valve 7 Pressure switch 8 Air tank 9 Pr...

Page 19: ...nt cabinet into the I position a lighted switch indicates the equipment is in operation Compressor At first operation the air tank is pressurized until it reaches a preset level when the compressor au...

Page 20: ...erconnect 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 opera...

Page 21: ...pressure a From compressor start up until pressure reaches 5 5 bar b During operation if pressure drops below 5 1 bar 24 hour regeneration mode Dryer regeneration for 10 minutes is automatically switc...

Page 22: ...15 9 1 x every 2 years Conduct repeated test pursuant to EN 62353 14 1 x every 2 years or after 5000 hours Replace inlet filter and pre filter 15 5 NDM Replacement maintenance kit dryer 8 000 hours o...

Page 23: ...mpressor is operated for the first time make sure that the safety valve is working properly Turn screw 4 of safety valve 1 several rotations to the left until the safety valve releases air Let the saf...

Page 24: ...cro filter by pulling down 2 Rotate the vessel 2 and remove 3 Remove the filter 3 4 Install the new filter element 5 Reinstall the filter housing and rotate to secure it until the catch clicks Micro f...

Page 25: ...liance from the mains Release air pressure in the pressure tank by opening the drain valve 1 Fig 10 The components of the product are non toxic Dispose of the appliance following all environmental reg...

Page 26: ...automatic condensate drain on filters clean replace Dirty filter and micro filter elements Replace old elements with new elements NDM Dryer Decreased dew point performance 1 Insufficient pressure at...

Page 27: ...DK50 4VR 50 NP DK50 4VR50 11_04 2018 130 04 2018 NP DK50 4VR50 11_04 2018 112000123 000...

Reviews: