C6.2.24/0215-0515/E
4.2.4 Protection devices ...................................................................................18
4.2.5 Crankcase heaters ..................................................................................18
4.3 Pressure safety controls .....................................................................................18
4.3.1 IPR valve (Internal Pressure Relief valve) ...................................................18
4.3.2 High-pressure control ...............................................................................18
4.3.3 Low-pressure control ...............................................................................19
4.4 Discharge temperature protection ........................................................................19
4.5 High potential testing .........................................................................................20
5 Starting up & operation................................................................................. 21
5.1 Strength pressure test ........................................................................................21
5.2 Tightness/pressure test ......................................................................................21
5.3 Preliminary checks ā Pre-starting .........................................................................21
5.4 Charging procedure ...........................................................................................21
5.5 Initial start-up ....................................................................................................22
5.6 Rotation direction ..............................................................................................22
5.7 Pressure fluctuations .........................................................................................22
5.8 Starting sound ..................................................................................................22
5.9 Deep vacuum operation .....................................................................................23
5.10 Shell temperature ..............................................................................................23
5.11 Minimum run time ..............................................................................................23
5.12 Sound characteristics.........................................................................................23
5.13 Shut-off sound ..................................................................................................23
5.14 Frequency ........................................................................................................23
5.15 Oil level............................................................................................................24
5.16 Digital system control .........................................................................................24
5.17 Power factor .....................................................................................................24
6 Maintenance & repair .................................................................................... 25
6.1 Exchanging the refrigerant ..................................................................................25
6.2 Rotalock valves .................................................................................................25
6.3 Replacing a compressor .....................................................................................25
6.3.1 Compressor replacement..........................................................................25
6.3.2 Start-up of a new or replacement compressor ..............................................25
6.4 Lubrication and oil removal .................................................................................26
6.5 Oil additives......................................................................................................26
6.6 Unbrazing system components............................................................................27
7 Dismantling & disposal ................................................................................. 27
DISCLAIMER............................................................................................................. 27
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