Bitzer HS.8851

SB-110-430
Table of contents
1 Introduction........................................................................................................................................................32
1.1 Also observe the following technical documents .........................................................................................32
2 Safety..................................................................................................................................................................32
2.1 Residual risks ..............................................................................................................................................32
2.2 Authorized staff............................................................................................................................................32
2.3 Safety references.........................................................................................................................................32
2.3.1 General safety references................................................................................................................ 32
3 Application ranges ............................................................................................................................................33
3.1 Use of flammable refrigerants of the A2L safety group ...............................................................................34
3.1.1 Compressor and refrigeration system requirements........................................................................ 34
3.1.2 General operation requirements ...................................................................................................... 35
4 Mounting ............................................................................................................................................................35
4.1 Transporting the compressor.......................................................................................................................35
4.2 Installing the compressor.............................................................................................................................35
4.2.1 Vibration dampers............................................................................................................................ 36
4.3 Connecting the pipelines .............................................................................................................................36
4.3.1 Pipe connections.............................................................................................................................. 37
4.3.2 Shut-off valves ................................................................................................................................. 37
4.3.3 Pipelines .......................................................................................................................................... 37
4.4 HS.85: Capacity control (CR) and start unloading (SU) ..............................................................................38
4.5 HS.95: Capacity control (CR) and start unloading (SU) ..............................................................................40
4.6 Connections and dimensional drawings ......................................................................................................41
5 Electrical connection ........................................................................................................................................44
5.1 Dimensioning components ..........................................................................................................................44
5.2 Motor version ...............................................................................................................................................45
5.3 High potential test (insulation strength test).................................................................................................45
5.4 Protection devices .......................................................................................................................................45
5.4.1 SE-E1............................................................................................................................................... 45
5.4.2 HS.85: Protection devices for operation with FI............................................................................... 46
5.4.3 Safety switching devices for limiting the pressue (high pressure switch and low pressure switch). 46
5.4.4 Monitoring the oil circuit HS.85 ........................................................................................................ 46
5.4.5 Monitoring the oil circuit HS.95 ........................................................................................................ 47
5.5 Compressor module CM-SW-01..................................................................................................................48
6 Commissioning..................................................................................................................................................48
6.1 Checking pressure strength.........................................................................................................................49
6.2 Checking tightness ......................................................................................................................................49
6.3 Evacuation ...................................................................................................................................................49
6.4 Charging with oil ..........................................................................................................................................49
6.5 Charging refrigerant.....................................................................................................................................49
6.5.1 Use of flammable refrigerants of safety group A2L.......................................................................... 50
6.6 Tests prior to compressor start ....................................................................................................................50
6.7 Compressor start .........................................................................................................................................50
6.7.1 Lubrication / oil level monitoring....................................................................................................... 50