44
7.2
COMMISSIONING
7.2.1
VENTING THE BACKWASHING FILTER
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To this end, after installation the backwashing filter is filled with water by opening the upstream shut-
off valve.
The backwashing filter is now at the same pressure as the water system.
/
The enclosed air must then be immediately removed from the backwashing filter in order to avoid
damage to the installation caused by pressure surges. The backwashing filter is vented by means of
backwashing (see chapter 7.3 “BACKWASHING”) and opening a downstream tap.
After backwashing and venting the backwashing filter is ready for use.
7.3
BACKWASHING
The backwashing filter must be backwashed (= cleaned) at the specified cycles in order to remove the fil-
tered dirt from the fine filter screen.
A complete backwashing process is carried out by turning the handwheel through a full turn. At the same
time the handwheel ensures free discharge. When the handwheel is rotated in any direction three suction
grooves rotate around the fine filter screen mesh. At the same time a patented ceramic flushing valve on
the underside of the backwashing filter opens so that the backwash water can flow out. The filtered water
flows from the inside outwards through the screen into the suction grooves, taking the adhering particles
with it. The fine filter screen is cleaned. At the same time the inside of the transparent filter bowl is cleaned
by the three wiper lips of the suction pipe. Immediately continue turning the handwheel until it audibly
locks into place. The ceramic flushing valve thus closes again and the backwashing process is completed.
Before starting up (initial putting into service or startup after maintenance work),
fill the backwashing filter with water and vent!
The backwashing filter is backwashed with filtered water. The supply of filtered
water to the household water pipe is maintained throughout the backwashing per-
formance. Dirty water cannot get into the clean water side during backwashing.
The backwashing can be repeated if necessary.
The degree of pollution as well as the cleaning off operation can be watched from
outside, if the UV protection cover of the filter bowl has been turned by 180 de-
grees to the back before backwashing (see fig. 8).
Содержание CLEAR 2.0 R 1 1/4"
Страница 16: ...16 Abb 7 Ableitungsm glichkeiten f r das R cksp lwasser I min 10 l II min 20 mm III IV V min 250 mm min 250 mm...
Страница 42: ...42 Fig 7 Backwash water discharge options I min 10 l II min 20 mm III IV V min 250 mm min 250 mm...
Страница 68: ...68 Rys 7 Mo liwo ci odprowadzenia pop uczyn I min 10 l II min 20 mm III IV V min 250 mm min 250 mm...
