BWT Duo-DVGW 2 Einbau- Und Bedienungsanleitung Seite 39

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The Quick flush symbol becomes negative
Quick flushing the 1st softening column takes 2 or 3 minutes.
Repeat the process until the water flowing to the sewage connection is
clean and there are no bubbles.
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Quick flushing is completed as soon as the negative symbol disappears.
You can view any procedure as a diagram with progressing time by
pressing Browse twice.
Set the cursor to Manual
Press OK to confirm.
Changing the softening column
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Set the cursor to Change column
Press OK to confirm.
The Column change symbol becomes negative
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Column changes take 1 minute.
The column change is completed as soon as the negative symbol
disappears.
Quick flushing the 2nd softening column
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Set the cursor to Flush
and
The Quick flush symbol becomes negative
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Quick flushing the 2nd softening column takes 2 or 3 minutes.
2
Repeat the process until the water flowing to the sewage connection is
clean and there are no bubbles.
Quick flushing is completed as soon as the negative symbol disappears.
For Rondomat 6 und 10 only:
Each softening column must be flushed 4 times.
I.e. Quick flushing must be run 8 times.
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