Table of contents
1 Introduction ....................................................................................................................................................... 45
2 Safety.................................................................................................................................................................. 45
3 Application ranges oil cooling ......................................................................................................................... 47
3.1 BITZER air cooled oil coolers...................................................................................................................... 47
3.2 BITZER water cooled oil coolers................................................................................................................. 49
4 Connections at the compressor ...................................................................................................................... 52
5 Pipe layout and further system components ................................................................................................. 57
6 Basic version: oil cooler below compressor level ......................................................................................... 58
6.1 HS./OS. compressors with HFC or HFO refrigerants.................................................................................. 59
6.2 OS. compressors with R717 (NH
6.3 CSH/CSVH compressors with air cooled oil cooler..................................................................................... 63
6.4 CSH/CSVH compressors with water cooled oil cooler................................................................................ 63
7 Variant: oil cooler above compressor level .................................................................................................... 64
7.1 HS./OS. compressors with HFC or HFO refrigerants.................................................................................. 64
7.2 OS. compressors with R717 (NH
8 Variant: refrigerant cooled external oil coolers (thermosiphon oil cooling) ............................................... 68
8.1 HS./OS. compressors with HFC or HFO refrigerants, divided refrigerant circulation.................................. 69
8.2 OS. compressors with R717 (NH
8.3 HS./OS. compressors with HFC or HFO refrigerants, simple refrigerant circulation................................... 73
8.4 OS. compressors with R717 (NH
8.5 CSH circuit with simple refrigerant circulation............................................................................................. 77
9 Alternative to oil cooling: direct liquid injection (LI) ..................................................................................... 77
10 Selecting the oil cooler with the BITZER SOFTWARE................................................................................... 78
11 Thermostatic control of the oil cooler............................................................................................................. 84
12 Document as PDF.............................................................................................................................................. 84
ST-140-3 // PDF Download
).............................................................................................................. 61
3
).............................................................................................................. 66
3
), divided refrigerant circulation.............................................................. 71
3
), simple refrigerant circulation............................................................... 75
3
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