Nilfisk BA 451 Bedienungshandbuch Seite 75

Adjustment of the detergent concentration in the solution
(For machine with EcoFlex™ system)
The system used to mix the detergent with the washing water can be activated by pressing the detergent fl ow control switch (A, Fig.
4): when the led indicator (B) is ON, the detergent is added to the washing water.
The display (C) shows the detergent concentration level (1 to 6) in the solution: for the related percentage values refer to the table
(D).
In order to change the actual detergent concentration, proceed as follows:
1. Turn off the detergent fl ow control switch (A) (the led indicator (B) must be OFF).
2. Press and hold the detergent fl ow control switch (A) until the led indicator (B) fl ashes.
3. Release the switch (A). Press it again shortly to go to the next level shown by the display (C); repeat the operation until the
desired setting is reached.
4. Wait until the led indicator (B) stops fl ashing: the new level is now set.
NOTE
Detergent percentage setting is stored into memory, even if the machine is turned off.
EcoFlex™ switch
Press the EcoFlex™switch (E, Fig. 4) whenever you temporarily need a greater washing power.
When you press the switch (E) (the led indicator (F) is fl ashing) the solution fl ow increases (for machine with EcoFlex™ system)
and the detergent concentration in the solution increases (moreover, if the detergent mixing function is not activated, it is
automatically activated).
The original settings can be restored by pressing the switch (E) once again (the led indicator (F) is ON).
NOTE
If the switch (E) is not pressed once again, the original settings are restored automatically after 60 seconds.
BA 451 - BA 451D - BA 531 - BA 531D
D
Figure 4
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USER MANUAL ENGLISH
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E
B
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