Operating manual - HPC Mk 4 LL & Mk 5 (including ATEX)
40/48
001752 en 2023.05
4.8
Regular service schedule - compressor unit
As stated in EN 378-4:2016, section 5 and Annex E, refrigeration systems must be maintained
and repaired by competent personnel only (see EN 13313).
Compressor parts
Planned service activities
(enter in logbook)
Annual
service
1 x interval
2 x interval
3 x interval
4 x interval
Internal parts according to the contents of the serv-
ice sets
Set
0
Set
A
Set
A
Set
A
Set
C
Check the condition of wear parts
Ch/Re
Ch/Re
Ch/Re
Ch/Re
Ch/Re
Built-on/external parts
Check for leaks in:
safety valves, bursting discs and fusible plugs
X
X
X
X
X
Check on site:
Safety switching devices, emergency signals and alarm
systems
X
X
X
X
X
Perform evacuation
X
X
X
X
X
Adjust refrigerant charge
X
X
X
X
X
Perform “pressure-drop test”
Re
Re
Re
Re
Re
Perform refrigerant leak test on all components and
system
X
Re
Re
Re
Re
Analyse oil
Re
Re
Re
Re
Re
Check vibration dampers for cracks and adjustment
Re
Re
Re
Re
Re
Check for abnormal noises and/or vibrations
Re
Re
Re
Re
Re
Check crankcase heating
Re
Re
Re
Re
Re
Check alignment and coupling condition
Re
Re
Re
Re
Re
Check solenoid valves
Re
Re
Re
Re
Re
Check compressor cooling
Re
Re
Re
Re
Re
Check thermopump
Re
Re
Re
Re
Re
Check oil return to compressor
Re
Re
Re
Re
Re
Check that the logbook is updated
X
X
X
X
X
Safety parts - built-on/external
Perform functional test of safety devices
X
X
X
X
X
Check for correct operation and working order of:
- all safety controls
- all measuring devices
- all alarm systems
X
X
X
X
X
Electric motor
See manufacturer's instruction manual about lubrication
and control
Re
Re
Re
Re
Re
Check for abnormal noise and vibrations
Re
Re
Re
Re
Re
Table 11: Service activities (intervals according to service interval diagrams)
Ch
= Change, regardless of appearance
Re
= Replace, if necessary
X
= Mandatory according to EN 378.
4.9
Visual inspection
Oil pressure
Check that the oil pressure complies with the recommended cut-out pressure.
Summary of Contents for HPC 100 Mk 4 LL
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