Wilo Stratos ECO Serie Einbau- Und Betriebsanleitung Seite 27

7 Commissioning
Warning! Risk of burns!
Depending on the pump or system operating conditions
(fluid temperature), the entire pump can become very hot.
Touching the pump can cause burns!
7.1 Filling and ventilation
Fill and bleed the system correctly. The pump rotor chamber
normally bleeds automatically after a short time in operation.
However, if the rotor chamber has to be bled directly, proceed
as follows:
• Switch off the pump,
• Close the shut-off device on the pressure side,
Warning! Risk of scalding!
Depending on the system pressure and temperature of the
fluid, when the bleeder screw is opened, hot liquid or gas-
eous fluid may escape or shoot out at high pressure. There
is a risk of scalding!
• Push through the perforation in the centre of the name plate
and carefully open the bleeder screw,
• Protect electrical parts from any water that escapes,
• Carefully push back the pump shaft with a screwdriver several
times.
Caution! Risk of damage to the pump
The pump may jam with the plug screw open depending on
the operating pressure. Close the bleeder screw again
before switching on.
• Close the bleeder screw again,
• Open the shut-off device again,
• Switch on the pump.
Installation and operating instructions Wilo-Stratos ECO
English
27