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
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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...
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