Grunbeck pureliQ:A, Руководство по эксплуатации

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Product description
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3.3 Functional description
The unfiltered drinking water flows into the filter from the inlet side
and then from the outside in through the filter element and to the
pure water outlet. Thus, foreign particles of > 100 µm in size are
retained.
Depending on their size and weight, the foreign particles either
stick to the filter element or they fall straight down into the filter
cylinder.
The controller automatically releases the backwash as per the
setting. Possible settings for the backwash intervals are 7, 30, 60
and 90 days. A backwash can be initiated manually at any time.
The drain is opened by triggering a backwash. The water flows
through the primary screen to the filter element and then flows
through the filter element in reverse direction of standard filtration.
Particles adhering to the filter element are freed and rinsed out to
the drain.
The backwash process takes about 50 seconds. In case some
particles still remain on the filter element, the backwash must be
triggered again manually. Grünbeck recommends a backwash
interval of 60 days.
In the automatic filter pureliQ:AD, the flow-optimised pressure
reducer, which is designed according to DIN EN 1567, enables
the after-pressure on the withdrawal side to be set to 1
– 6 bar
(factory setting: 4 bar).