Bitzer CSCVH2, Operating Instructions Manual

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SB-160-3 2
Table of contents
1 Introduction............................................................................................................................................................ 4
1.1 Also observe the following technical documents ........................................................................................... 4
2 Safety .................................................................................................................................................................... 4
2.1 Authorized staff.............................................................................................................................................. 4
2.2 Residual risks ................................................................................................................................................ 4
2.3 Safety references........................................................................................................................................... 4
2.3.1 General safety references.................................................................................................................. 4
3 Application ranges ................................................................................................................................................. 5
3.1 Use of flammable refrigerants of the A2L safety group (e.g. R1234yf).......................................................... 6
3.1.1 Compressor and refrigeration system requirements.......................................................................... 6
3.1.2 General operation requirements ........................................................................................................ 7
4 Mounting................................................................................................................................................................ 7
4.1 Transporting the compressor......................................................................................................................... 7
4.2 Installing the compressor............................................................................................................................... 8
4.2.1 Arranging for removal clearances ...................................................................................................... 9
4.2.2 Vibration dampers.............................................................................................................................. 9
4.3 Connecting the pipelines ............................................................................................................................... 9
4.3.1 Pipe connections................................................................................................................................ 9
4.3.2 Shut-off valves ................................................................................................................................... 9
4.3.3 Pipelines .......................................................................................................................................... 10
4.3.4 Pipes for FI cooling, ECO (economiser) and LI (liquid injection) ..................................................... 10
4.4 Oil connections ............................................................................................................................................ 12
4.5 Capacity control, start unloading and V
i
control........................................................................................... 12
4.6 Connections and dimensional drawings ...................................................................................................... 13
5 Electrical connection............................................................................................................................................ 17
5.1 High potential test (insulation strength test)................................................................................................. 17
5.2 Safety and protection devices...................................................................................................................... 18
5.2.1 Pressure switch (HP + LP)............................................................................................................... 18
5.2.2 Integrated sensors ........................................................................................................................... 18
5.2.3 Oil heater ......................................................................................................................................... 18
5.2.4 Insulting the oil separator................................................................................................................. 18
6 Commissioning .................................................................................................................................................... 18
6.1 Checking the strength pressure................................................................................................................... 18
6.2 Checking tightness ...................................................................................................................................... 19
6.3 Evacuation ................................................................................................................................................... 19
6.4 Charging refrigerant..................................................................................................................................... 19
6.5 Checking before compressor start............................................................................................................... 19
6.6 Compressor start ......................................................................................................................................... 20
6.6.1 Lubrication/oil level monitoring......................................................................................................... 20
6.6.2 Set high pressure and low pressure limiters (HP + LP) ................................................................... 20
6.6.3 Setting the condenser pressure ....................................................................................................... 20
6.6.4 Checking the operating data ............................................................................................................ 20
6.6.5 Cycling rate between two compressor starts ................................................................................... 20
6.6.6 Vibrations and frequencies .............................................................................................................. 21