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DK50 

4VR/50

 

NP-DK50 4VR50-11_04-2018 

- 22 -    

04/2018

 

MAINTENANCE 

14.  MAINTENANCE   SCHEDULE  

Notice!

 

The operating entity is obliged to ensure that all tests of the equipment are carried out repeatedly at 
least once within every 24 months (EN 62353) or in intervals as specified by the applicable national 
legal regulations. A report must be prepared on the results of the tests (e.g.: according to EN 62353, 
Annex G), including the measurement methods used.

 

 

Time interval 

Maintenance that must be performed 

Chapter 

Performed 

by 

 

 1 x day 

Emptying condensate

At high air humidity 
Compressors without air dyers  
Compressors with air dryers   

15.2 

 

User 

 

 1x per week 
 1x per week - check function

 

Once annually 
 
 

Equipment cleaning

15.1 

Check of dryer function

15.3 

Qualified 

technician 

Safety valve check

15.4 

MD 

Replace filter and micro-filter    
  elements

 

15.6 
15.7 

Check tightness of joints  
   and overall inspection of the equipment

 

Maintenance 

documentation 

•  Clean the cooler ribs and the fan 

 

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 (or 2 years) 

 Replace media in both dryer cylinders 
and seals. 

15.8

 

16,000 hours (or 4 years) 

 Replace media in both dryer cylinders 
and seals. 

24,000 hours (or 6 years) 

 Replace media in both dryer cylinders, 
seals and all valves. 

 
 
 

15.  MAINTENANCE 

Repair work beyond normal maintenance can be performed only by qualified personnel or 
the manufacturer’s representative. 
Use only spareparts and accessories approved by the manufacturer.  

 

Prior to any maintenance or repair work, switch off the compressor and disconnect it from 
the mains (pull out the mains plug).  

 
 

TO  ENSURE  THAT  THE  COMPRESSOR  WORKS  CORRECTLY,  PERFORM  THE  FOLLOWING  MAINTENANCE 
TASKS AT REGULAR INTERVALS (CHAPTER 14).: 

  

 

  

 

THE  CABINET  MUST  BE  OPENED  ON  CABINET-MOUNTED  COMPRESSORSBEFORE 
CONDUCTING THE FOLLOWING CHECKS. 

 
 

15.1. 

Equipment cleaning  

The  equipment,  in  particular  the  cooling  fan  must  be  kept  clean  to  ensure  the  long-term  efficiency  of  the 
cooler – the cooling fins must be cleaned occasionally to remove any dust.

 

 
 
 
 
 
 
 

 

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...

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