JUDO BIOSTAT-COMBIMAT
17
Operation
5.2.3 Hygiene unit
In addition to its lime-protection function, the
water treatment devices also fights bacteria
such as that one which causes legionnaires'
disease and herewith their increase. This is
achieved by means of the proven anodic
oxidation method.
The hygiene unit in the water treatment
devices consists of an electrode specially
coated with a mixture of oxides of precious
metals as an additional anode and an elec-
tronic control unit. The approved circular
stainless steel brush is used here, too in the
hygiene unit as a deposition cathode in addi-
tion to its function as a lime protection. The
cathode brush is freed of lime depositis from
time to time by means of a scraper, so that a
pole reversal of the electrodes is not neces-
sary for the cleaning off. By avoiding regular
pole reversal it is taken care of the elec-
trodes and their service life is prolongated.
As soon as the water flows, by applying a
small voltage out of the water itself, without
the addition of chemicals, oxidants are
produced which attack the legionella bacte-
rium.
The water treatment devices creates a
disadvantageous living environment for the
legionella bacteria, but must not be used,
however in legionnaires' disease-contami-
nated water systems as the sole protection
against legionnaires' disease. In these
circumstances, measures for disinfection
have to be adopted here as further steps, in
accordance with the DVGW working sheet
W551, in order to kill the legionella bacteria
completely.
The use of the water treatment devices does
not replace a disinfection in the usual sense,
but serves as a prophylatic measure to
protect as far as possible against the danger
of an increase of the germs.
5.3
Control lamps,
manual pushbuttons
Fig. 11:
Control lamps, manual pushbuttons
LED 1 Operation - Conditioning
Permanent green light: the water treat-
ment device is ready for use.
Green light flashing: water treatment is
taking place.
LED 2 Cleaning - Flushing
Permanent green light: a flushing - flush-
ing is being carried out.
LED 4 Battery low
Red light flashing: the battery must be
changed otherwise no further Cleaning -
Flushing can be carried out.
LED 5 Fault
Red flashing light: the water treatment
device is not ready for use (see chapter
“Fault”).
Hand
manual pushbutton
Triggers Cleaning - Flushing.
LED 1
LED 2
LED 4
LED 5
Hand
Operation - Conditioning
Cleaning - Flushing
Fault
Manual Cleaning - Flushing
Battery low
