SB-170-10 41
Table of contents
1 Introduction........................................................................................................................................................43
1.1 Also observe the following technical documents ........................................................................................43
2 Safety..................................................................................................................................................................43
2.1 Authorized staff............................................................................................................................................43
2.2 Residual risks ..............................................................................................................................................43
2.3 Safety references.........................................................................................................................................43
2.3.1 General safety references................................................................................................................ 43
3 Application ranges ............................................................................................................................................44
3.1 Economiser and additional cooling ..............................................................................................................45
3.2 Use of flammable refrigerants of the A2L safety group (e.g. R1234yf)........................................................45
3.2.1 Compressor and refrigeration system requirements........................................................................ 46
3.2.2 General operation requirements ...................................................................................................... 46
4 Commissioning..................................................................................................................................................46
4.1 Checking pressure strength.........................................................................................................................46
4.2 Checking tightness ......................................................................................................................................47
4.3 Evacuation ...................................................................................................................................................47
4.4 Charging refrigerant.....................................................................................................................................47
4.5 Checks prior to compressor start.................................................................................................................47
4.6 Compressor start .........................................................................................................................................48
4.6.1 Checking the rotation direction ........................................................................................................ 48
4.6.2 Lubrication/oil level monitoring......................................................................................................... 48
4.6.3 Set high pressure and low pressure switches (HP + LP)................................................................. 48
4.6.4 Set the condenser pressure............................................................................................................. 48
4.6.5 Vibrations and frequencies .............................................................................................................. 49
4.6.6 Checking the operating data............................................................................................................ 49
4.6.7 Particular notes on safe compressor and system operation............................................................ 49
5 Mounting ............................................................................................................................................................50
5.1 Transporting the compressor.......................................................................................................................50
5.1.1 Centres of gravity and weights......................................................................................................... 50
5.2 Installing the compressor.............................................................................................................................54
5.2.1 Arranging for removal clearances.................................................................................................... 54
5.2.2 Marine application............................................................................................................................ 54
5.2.3 Vibration dampers............................................................................................................................ 54
5.3 Connecting the pipelines .............................................................................................................................55
5.3.1 Pipe connections.............................................................................................................................. 55
5.3.2 Shut-off valves ................................................................................................................................. 55
5.3.3 Pipelines .......................................................................................................................................... 56
5.4 Oil connection ..............................................................................................................................................57
5.5 Capacity control (CR) and start unloading (SU) ..........................................................................................57
5.5.1 Solenoid valves and control sequences........................................................................................... 57
5.6 Connections and dimensional drawings ......................................................................................................59
6 Electrical connection ........................................................................................................................................68
6.1 Checklist ......................................................................................................................................................68
6.2 Dimensioning components ..........................................................................................................................69
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