Backwashing - Judo EASY FILT-DOS Instructions De Montage Et De Service

5.4

Backwashing

The filter must be backwashed (=cleaned) at
the specified cycles in order to remove the
filtered dirt from the fine filter screen.
All sizes of filter are backwashed
with treated water. The supply of
treated water to the filter station is
maintained throughout the back-
washing process. Dirty water cannot
get into the clean water side during
backwashing.
The backwashing takes place at full tap
(water system) pressure.
To clean the backwash protective 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.
Both the degree of soiling and the
cleaning process can be observed
from the outside.
ATTENTION
(see chapter "Safety
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".
12
Operation
information and
JUDO EASY FILT DOS
5.4.1 Backwashing interval
The backwash protective filter must be
backwashed:
– Every two months at the latest.
– If the water pressure falls.
– If the backwash protective filter is visibly
dirty.
There is a display button on the built-
in rotary flange attached to the back-
wash protective filter. It can be slid
along the months scale. This enables
the backwashing interval to be moni-
tored.
ATTENTION
(see chapter "Safety
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 depos-
ited 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.
information and