Bitzer KT-230-2, Technical Information

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KT-230-2 2
Table of contents
1 Introduction.......................................................................................................................................................... 4
2 Safety.................................................................................................................................................................... 4
2.1 Also observe the following technical documents ........................................................................................... 4
2.2 Authorized staff.............................................................................................................................................. 5
2.3 Residual risks ................................................................................................................................................ 5
2.4 Safety references........................................................................................................................................... 5
2.4.1 General safety references.................................................................................................................. 5
3 Technical data...................................................................................................................................................... 6
4 Peripheral devices............................................................................................................................................... 8
4.1 Standard ........................................................................................................................................................ 8
4.2 Options .......................................................................................................................................................... 8
4.3 Peripheral devices for compressors for standard refrigerants ....................................................................... 9
4.4 Peripheral devices for compressors for transcritical CO
2
applications .......................................................... 9
4.5 Dimensional drawings.................................................................................................................................. 10
4.5.1 Dimensional drawings for compressors for standard refrigerants with CM-RC-01 .......................... 10
4.5.2 Dimensional drawings for compressors for transcritical CO
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applications with CM-RC-01 ............. 11
4.6 The refrigerant injection system................................................................................................................... 11
4.6.1 Minimum equipment for the RI system ............................................................................................ 12
4.6.2 Integrating the RI system into the refrigeration circuit...................................................................... 12
5 Operating and monitoring functions ............................................................................................................... 12
5.1 Operating functions...................................................................................................................................... 12
5.1.1 CRII capacity control........................................................................................................................ 12
5.1.2 SU start unloading ........................................................................................................................... 13
5.1.3 Compressor cooling ......................................................................................................................... 13
5.1.4 Oil heater ......................................................................................................................................... 13
5.1.5 Switching times of the motor contactors at compressor start .......................................................... 13
5.2 Monitoring and protective functions ............................................................................................................. 13
6 Mounting the peripheral devices enclosed in the delivery............................................................................ 14
6.1 Assemble components for application limit monitoring................................................................................ 14
6.2 Install additional fan (M2)............................................................................................................................. 14
6.3 Installing the RI system................................................................................................................................ 14
7 Electrical connection ........................................................................................................................................ 15
7.1 Representation of components and cables ................................................................................................. 15
7.2 Schematic wiring diagram for direct on-line start......................................................................................... 15
7.3 Schematic wiring diagram for part winding start .......................................................................................... 15
7.4 Schematic wiring diagram for star-delta start .............................................................................................. 15
7.5 Principle circuit diagram for operation with frequency inverter (FI).............................................................. 15
7.6 Legend for the schematic wiring diagrams .................................................................................................. 16
7.7 Wiring in the state of delivery....................................................................................................................... 21
7.7.1 Compressors for standard refrigerants ............................................................................................ 21
7.7.2 Compressors for transcritical CO
2
applications................................................................................ 21
7.8 High pressure switch ................................................................................................................................... 21