Initiation/Operating Control; Generalities; De-Aeration; Operational Monitoring - Biral A 402 V2 Instrucciones De Instalación Y Funcionamiento

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6. Initiation/operating control

6.1 Generalities

Thoroughly rinse the equipment without the pump. See Section 4.
Fill and ventilate the system appropriately.
Only put the pump into operation where the unit is filled.
Switch on the supply voltage.

6.2 De-aeration

It is recommended that the pump be ventilated prior to commissioning.
Proceed here as follows:
– Switch off the pump
– Lower the system pressure to 0.2 bar
– Loosen the screw plug (roughly one turn counter-clockwise)
until water comes out.
There is a danger of scalding
Depending on the temperature and the system pressure,
the hot pumped fluid may be emitted as a liquid or a gas.
– Never remove the screw plug completely
The pump may suck air in.
A great volume of fluid may be lost.
– Switch the pump on and off some 5 to 8 times
until only water comes out of the screw plug.
– Tighten the screw plug.
– Increase the system pressure
– Switch the pump on.

6.3 Operational monitoring

An LED must always be lit in Area A2.
See Section 7.2
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