Bitzer ST-140-3 Manuel D'utilisation page 62

Legend
1 Compressor
2 Check valve, discharge gas connection
3 Discharge gas line to the oil separator
installation with inclination
4 Oil separator
5 Oil cooler
6 Oil line, primary oil circuit
7 Oil mixing valve, primary oil circuit
8 Filter, primary oil circuit
9 Solenoid valve, primary oil circuit (for
OS.A105: 2 valves in parallel)
10 Oil line, secondary oil circuit
11 Solenoid valve, secondary oil circuit
12 Check valve and/or pressure control valve,
discharge gas line
13 Discharge gas line to the condenser
14 R717 suction gas line, dry.
Installation with upward inclination
15 Shut-off valve
16 Maintenance valve
17 Oil flow switch
18 Sight glass (if installed)
19 Oil pump
20 Oil check valve
21 Oil pressure relief valve
22 Refrigerant suction gas line, with oil return
from the evaporator(s).
Installation suction header horizontally
23 Pressure relief valve,
necesssary in combination with check valve
24 (Evaporation) condenser
25 Liquid line,
Installation with upward inclination
26 Refrigerant return line, wet
Installation with upward inclination
27 Refrigerant return line, dry
Installation with upward inclination
28 Thermosiphon receiver
Legend includes entries that are not used in all diagrams.
Criteria for using an oil mixing valve (no. 7 in the legend): Pipe layout and further system components
ST-140-3 // PDF Download 62