Siemens SINAMICS S120 Equipment Manual page 268

Cooling circuit, coolant properties and protection against condensation
9.5 Examples of coolant control
1 Sight glass
2 T piece
3 Line d1
4 Line d2
5 Line d3
6 Ball valve d2
7 Ball valve d3
8 Hose connection at the device
9 EPDM hose
10 Hose connection at the ball valve
A Intake, cooling water primary circuit
Figure 9-14 Principle of a flow control with 3-way valve as protection against condensation
268
47 Vent
52 Temperature sensor
54 Pressure sensor
60 Pump
61 Three-way bypass valve
63 Safety release valve
65 Ball valve d1
71 Filter mit automatic backflushing or dirt trips, fine filter
100 μm
93 Reservoir/expansion chamber
B Return, cooling water primary circuit
Water-cooled chassis power units for common cooling circuits
Manual, 08/2017, 6SL3097-4AM10-0BP0