Siemens SINAMICS S120 Manual page 125

1. Hold the blue vent hose outside the cabinet in a bucket, see Venting the components
(Page 122).
2. Open the vent valve at the heat exchanger so that air can escape.
Continue venting until clear cooling liquid escapes in a steady stream from the vent hose.
3. Close the vent valve.
Danger of injury caused by spray water
The coolant is harmful to eyes and skin and can damage surfaces.
If the air escapes intermittently, coolant spray can come into contact with your skin or eyes.
• Therefore, use appropriate protective clothing for all work on the drive. However, if your
• Please refer to the EU safety data sheet of the coolant manufacturer.
Venting the heat sink with removal of the front electronic fan
On the following Basic Line Connection Modules the front electronic fan must be removed in
order to operate the venting lever in the Basic Line Module:
● 6SL3735-1TE41-2AA3 (380 ... 480 V, 1220 A, 600 kW)
● 6SL3735-1TE41-7AA3 (380 ... 480 V, 1730 A, 830 kW)
● 6SL3735-1TG41-3AA3 (500 ... 690 V, 1300 A, 1100 kW)
● 6SL3735-1TG41-7AA3 (500 ... 690 V, 1650 A, 1370 kW)
The necessary steps following removal of the top housing cover are shown in the illustration
below.
Cabinet Modules liquid cooled
Manual, 10/2015, A5E37067587A
CAUTION
eyes or skin do come into contact with coolant, rinse the affected area thoroughly with
tap water as soon as possible. If coolant has escaped, remove the liquid from the
affected surfaces.
Commissioning the cooling circuit
5.3 Filling the internal deionized water circuit
125