4 Commissioning [specialist]
10 9976x0210x-mub-en – V01 2020/09
The fill and drain valves necessary to flush and fill the installation are integrated in the solar
station.
To flush the dirt particles out of the installation, only use flush and fill stations with fine filters.
Ball valve with integrated check valve
(Flow direction in the figure: upwards)
Check valve is operating,
flow only in flow direction.
Check valve is not operating,
Ball valve closed,
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