Selecting the operating mode
To allow irradiation of algae and germs to suit the respective situation, it is possible to choose between four operating
modes.
The duration of irradiation is automatically controlled on the basis of the measured water temperature and the selected
operating mode. The ratio of the switch-on time to the switch-off time of the UVC lamps is dependent upon the opera-
ting mode. The higher the percentage value, the longer the switch-on time in relation to the switch-off time.
The UVC lamps are permanently switched on in the 100% operating mode.
Function
Selecting the operating
mode
Switching times
High saving in energy (50 %)
Water tempera-
ON [h]
ture [°C]
4
12
5 ... 9
12
10 ... 14
12
15 ... 19
12
20
12
Resetting the operating hour counter
When the maximum operating life of the UVC lamps is reached, the LED of the UVC lamp status display flashes. Re-
place the UVC lamps to achieve the optimum irradiation output. Subsequently reset the operating hour counter.
You can read off the exact residual operating life of the UVC lamps on the display.
Function
Reading off the residual
operating life of the UVC
lamps
Resetting the operating
hour counter
Proceed as follows
Press
several times until the desired
operating mode is reached.
Operating mode 50 %
OFF [h]
Irradiation dura-
tion [%]
72
14
36
25
12
50
0
100
12
50
Proceed as follows
Keep
pressed for approx. 6 s.
Keep
pressed for 6 s until the status of
the UVC lamps is displayed.
While the status of the UVC lamps is indicated:
Press
again and keep it pressed until
all four LEDs for the status display of the UVC
lamps flash and rE extinguishes in the display.
Note
Switching sequence: 50 % – 75 % – 90 % – 100 % – Off.
UVC lamps on: LED is lit blue:
UVC lamps off: LED is lit green (energy-saving phase in Eco
mode).
Select Eco mode 50 % if the water is only slightly soiled.
Select Eco mode 75 % or 90 % if the water is more soiled.
Select operating mode 100 % if the water is very soiled.
Procedure for green water:
Start with operating mode 100 %. As soon as the desired re-
sult is achieved, change to Eco mode 50 %. If the water
becomes green again, choose the next highest Eco mode until
the desired result is achieved in the long term.
Procedure for clear water:
Start with Eco mode 50 %. If the water starts to go green,
select the next highest Eco mode until the desired result is
achieved in the long term.
Operating mode 75 %
Medium saving in energy (25 %)
ON [h]
OFF [h]
Irradiation dura-
tion [%]
12
12
50
24
12
67
36
12
75
12
0
100
36
12
75
Note
The 6-digit value is displayed by three groups of two digits that
appear in succession in the display.
This is repeated three times after an extended pause to make
it easier to read the number.
Example:
01-11-54---01-11-54---01-11-54
01-11-54 corresponds to 11154 hours of residual operating life
When rE extinguishes, the operating hour counter is reset to
12000 hours.
If the button is released too early, the operating hour counter is
not reset.
- EN -
Operating mode 90 %
Low saving in energy (10 %)
ON [h]
OFF [h]
Irradiation dura-
tion [%]
24
12
67
48
12
80
96
12
89
12
0
100
12
0
100
29