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DK50 

4VR/50

 

NP-DK50 4VR50-11_04-2018 

- 8 -    

04/2018

 

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. 
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 into a cooler (12). The air then 
passes through a filter (16) and micro-filter (15) into the dryer (14) 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 NDM dryer 

(Fig. 3)

 

The  compressor  (1)  draws  in  air  through  an  inlet  filter  (8)  and  compresses  it  into  the  cooler.  The  air  then 
passes through the dryer chamber (23) 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 (24) 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. 4)

 

The soundproof cabinet itself is compact yet allows sufficient exchange of cooling air. The fan (9) underneath 
the compressor aggregate and the cabinet fans (33) cool the compressor and the space inside the cabinet. 
The  fans  operate  when  the  compressor  motor  is  running.  The  cooling  fans  automatically  start  if  the 
temperature  in  the  cabinet  reaches  over  40°C,  even  when  the  compressor  is  not  running.  The  fans 
automatically switch off once the cabinet temperature drops to around 32°C.  
An indicator (34) located on the front of the cabinet indicates maintenance is needed on the compressor with 
the NDM 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.  

 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Содержание DK50 4VR/50

Страница 1: ......

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

Страница 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...

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

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