Filling The Internal Deionized Water Circuit - Siemens SINAMICS S120 Manual

5.3

Filling the internal deionized water circuit

To fill the internal deionized water circuit you require a drum pump and a 1/2" hose. We
recommend that a drum pump is used that can produce a pressure of 3 bar.
The coolant must be mixed before filling the cooling circuit. 50 l drums are suitable for the
purpose.
Note
The drum pump is not included in the scope of delivery.
For additional information on the filling set, refer to the operating instructions of the Heat
Exchanger Module.
Filling the cooling circuit
1. Close all vent valves and drain valves.
2. Connect the drum pump with the hose to the filling connections of the Heat Exchanger
Module.
3. Open all of the valves in the Heat Exchanger Module.
4. Using the drum pump, pump the coolant into the cooling circuit until the pressure
manometer shows approx. 2.1 bar. To observe the pressure manometer on the
expansion vessel, depending on the version of the Heat Exchanger Module, swivel the
switch box out of the way.
Note
Prevent the ingress of dirt and foreign bodies into the cooling circuit.
Cabinet Modules liquid cooled
Manual, 10/2015, A5E37067587A
Commissioning the cooling circuit
5.3 Filling the internal deionized water circuit
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