Filter
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WTC 600 LP / MP
6
Maintenance and Care
Version 06/05
3.2 During Operation
3.2.1 Control and Corrective Action Intervals
d…daily, w…weekly, m… monthly
3.2.2 Sand and Activated Carbon Filter
During operation, the sand and activated carbon
filter control indicates the actual time. To change
the indication:
• Press button (32) for approx. 5 s; the display
(31) indicates the time of the regeneration.
• Press button (32) briefly; the display indicates
the number of regenerations.
• Press the ADVANCE key button briefly; the
display indicates the number of days and hours
since the last regeneration.
Drinking water quality is ensured only when the following control intervals are met. In case
deviations from the desired condition can not be eliminated through the measures mentioned,
the drinking water production must be stopped and the Kärcher Service must be notified.
Interval Check/Activity Target/Purpose In Case of Deviation
d Level, metering container Sufficient amount/filling Fill up; mixing chemi-
cals,
see Section 3.2.6
Air bubbles in metering line No air bubbles Bleed metering pump,
see Section 3.2.3
Flow of drinking water
based on the operational start-up value
Reduction of the drinking water
flow up to 10%
Fine adjustment,
see Section 3.2.5 (1)
Drinking water conductance value
based on the operational start-up value
Increase of the drinking water
conductance value up to 10%
Fine adjustment,
see Section 3.2.5 (2)
Pressure difference between pump
and concentrate pressure
15% maximum above start-up
difference
See Section 3.2.5 (3)
Kärcher Service
Hour meter for sand und activated
carbon filter
*
* for switching over the indication, see Section 3.2.2
Backwashing has occurred
within the past 24 h
Kärcher Service
Pressure difference, fine filter ≥ 0,8 bar Replace fine filter,
see Section 3.2.4
Visual inspection of the equipment No leakage Kärcher Service
w Fill out operating log
m Clean and flush the metering
container
Visually check the untreated water
pump
No damages/leaks detectable Kärcher Service
Float switch in the drinking water
tank
No operational malfunctions
detectable
Kärcher Service