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6. Start-up
6.1 General
Before start-up, it is vital that the unit is lled with the delivery medium and ventilated.
Close to the inlet nozzles of the pump, it should also be the required minimum intake pressure.
The system can be ventilated via the pump. The pump itself is self-ventilating.
6.2 Operational control
After switching on the power supply the pump must start up independently:
the Biral impeller turns and ashes green.
Watt display Status
[W] Pump running