Bitzer OSKA9553 Instructions De Service page 20

Table of contents
1 Introduction........................................................................................................................................................ 22
1.1 Also observe the following technical documents ......................................................................................... 22
2 Safety.................................................................................................................................................................. 22
2.1 Authorized staff............................................................................................................................................ 22
2.2 Residual hazards ......................................................................................................................................... 22
2.3 Safety references......................................................................................................................................... 22
2.3.1 General safety references ............................................................................................................... 22
3 Application ranges ............................................................................................................................................ 23
3.1 Oil circulation ............................................................................................................................................... 23
4 Mounting ............................................................................................................................................................ 23
4.1 Transporting the compressor....................................................................................................................... 23
4.2 Installing the compressor............................................................................................................................. 23
4.3 Direct drive via coupling............................................................................................................................... 24
4.4 Connecting the pipelines ............................................................................................................................. 24
4.4.1 Pipe connections.............................................................................................................................. 25
4.4.2 Pipelines .......................................................................................................................................... 25
4.4.3 Connecting the high pressure switch (HP)....................................................................................... 25
4.4.4 OSKAB (booster version)................................................................................................................. 25
4.5 Connections and dimensional drawing ........................................................................................................ 26
4.5.1 Additional connections for evacuation ............................................................................................. 27
4.5.2 Capacity control and start unloading................................................................................................ 27
5 Electrical connection ........................................................................................................................................ 27
5.1 Dimensioning components .......................................................................................................................... 27
5.2 Safety and protection devices...................................................................................................................... 27
5.2.1 Compressor module......................................................................................................................... 27
5.2.2 Motor safety and protection devices ................................................................................................ 28
5.2.3 High pressure switches.................................................................................................................... 28
6 Commissioning.................................................................................................................................................. 28
6.1 Checking the strength pressure................................................................................................................... 28
6.2 Checking tightness ...................................................................................................................................... 28
6.3 Charging with oil .......................................................................................................................................... 28
6.4 Evacuation ................................................................................................................................................... 29
6.5 Charging with refrigerant ............................................................................................................................. 29
6.6 Tests prior to compressor start .................................................................................................................... 29
6.7 Compressor start ......................................................................................................................................... 29
6.7.1 Checking the rotation direction ........................................................................................................ 29
6.7.2 Start ................................................................................................................................................. 30
6.7.3 Checking the oil level ....................................................................................................................... 30
6.7.4 Setting high pressure and low pressure switches (HP + LP) ........................................................... 30
6.7.5 Setting the condenser pressure control ........................................................................................... 30
6.7.6 Checking the operating data ............................................................................................................ 30
6.7.7 Vibrations ......................................................................................................................................... 30
6.7.8 Particular notes on safe compressor and system operation ............................................................ 31
7 Operation............................................................................................................................................................ 31
20 SB-520-2