Venting The Heat Exchanger - Siemens SINAMICS S120 Manual

Danger to life through electric shock due to discharge of coolant
A discharge of coolant can result in short-circuits with damage and malfunctions up to
death or serious injury.
• Make sure that liquid-cooled devices are completely dry before being switched on and
• Ensure that no liquid coolant is sprayed onto the devices or additionally mounted
• Switch off immediately if there are any leaks causing liquid to escape (drips or pools).
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.
5.3.1.3

Venting the heat exchanger

The air-water heat exchangers in the Active Line Connection Module or the Basic Line
Connection Module are mounted at the highest location in the cooling circuit.
For the exact position of the respective vent valve, please refer to the layout diagrams
provided.
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.
Cabinet Modules liquid cooled
Manual, 10/2015, A5E37067587A
WARNING
put into operation.
electrical components during venting.
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
123