JUDO EASY FILT-B
11
Operation
5.3
Backwashing
The filter must be backwashed (= cleaned)
at the specified intervals in order to remove
the filtered dirt from the fine filter screen.
The backwashing takes place at full tap
(water system) pressure.
To clean the filter, the handwheel must be
turned to the left up to the limit stop, thereby
opening the flushing valve. While the
handwheel is being turned the flushing
water escapes. The flushing valve must then
be closed again by turning the handwheel to
the right.
The ceramic flushing valve thus closes
again and the backwashing process is
completed.
The backwashing process can be repeated
if necessary.
ATTENTION
(see chapter “Safety information and
dangers due to non-compliance”)
If the locking procedure is interrupted the
flushing valve is not completely closed.
Water permanently escapes as a result.
Apart from high water consumption, this can
also cause water damage, especially if the
backwashing water is not discharged as
described in the chapter “Discharging the
backwashing water”.
5.3.1 Backwashing interval
The filter must be backwashed:
–
every two months at the latest
–
if the water pressure falls
–
if the filter is visibly dirty
ATTENTION
(see chapter “Safety information and
dangers due to non-compliance”)
If the interval until the next backwashing is
longer than two months, the particles on the
filter screen can stick or a large filter pres-
sure resistance can result.
Unauthorised persons must not operate the
filter! Persons who operate the filter must
observe the operating instructions. Failure
to observe these instructions can result in
damage to property and personal injuries.
The smaller the mesh size of the screen
insert the more frequently backwashing is
required!
From experience, increased dirt is depo-
sited during the initial running period. In this
case the unit will have to be flushed more
frequently than normal.
Failure to flush in good time can cause
damage to the screen. Large quantities of
filtered particles can deform the screen. As
a result, proper function of the filter is no
longer ensured. In addition, large quantities
of dirt can cause mechanical damage to the
backwashing function.
All sizes of filter are backwashed
with treated water. The supply of
treated water to the filter is main-
tained throughout the backwashing
process. Dirty water cannot get into
the clean water side during back-
washing.
Both the degree of soiling and the
cleaning process can be observed
from the outside.
There is a display button on the
built-in rotary flange attached to the
filter (see fig. 5). It can be slid along
the months scale. This enables the
backwashing interval to be moni-
tored.
