Kärcher WPC 600 BW Betriebsanleitung Seite 15

 Screw on the filter pot and tighten it us-
ing the filter key.
 Restart the raw water flow.
 Switch on the unit using the "ON/OFF"
key.
Fine regulation of the operating pres-
sures
Caution
Danger of damage to the plant. The follow-
ing values should not be exceeded when
you make changes to the plant settings:
Pump pressure maximum 1.4 MPa (FW
–
model), 2.1 MPa (BW variant)
Maximum drinking water quantity 600 l/
–
h
The concentrate quantity should not fall
–
below the value at the time of startup
Note
There is a time delay before the plant re-
acts to the changes done to the regulating
valve. Hence do the settings at the pres-
sure regulation valve in small steps and
wait for the respective effect.
(1) Drinking water flow has fallen from
_______ l/h to _______ l/h
1 Concentrate regulation valve
2 Pressure regulation valve
3 Flow meter for drinking water
4 Flow meter for concentrate
 Read the quantity of drinking water at
the flow meter for drinking water and
compare it to the value when the plant
was started (see start-up report). If the
drinking water flow ahs fallen to ______
l/h, then do the following fine regulation:
 Close the pressure regulation valve in a
clock-wise direction until the flow meter
for the drinking water has almost
achieved the target value.
 Close the concentrate regulation valve
slowly in the clock-wise direction until
the required target value is reached for
the two flow meters of the concentrate
and the drinking water.
Note
Inform Kärcher Customer Service if this
fine regulation does not lead to any chang-
es to the drinking water flow.
(2) Conductivity of drinking water has in-
creased from _____μS/cm to _____μS/cm
Note
Small increases in the conductivity of drink-
ing water does not affect the quality of the
drinking water.
 Read the current conductivity value on
the display of the operating panel and
compare it to the value at the time of
start-up (see start-up report). If the
drinking water conductivity has in-
creased to _____μS/cm, then you need
to rinse the membrane of the RO filter
unit:
 Reduce the drinking water output by
opening the pressure regulation value
to approx. 200 l/h.
 Operate the plant for approx. 1 hour;
then reset the nominal output by closing
the pressure regulating valve.
 Check again the conductivity of the
drinking water.
Note
If rinsing the membrane does not result in
lower conductivity values, then inform
Kärcher Customer Service.
(3) Difference between pump and con-
centrate pressure has increased by
more than ___ MPa
1 Manometre for pump pressure
2 Manometer for concentrate pressure
 Read the value on the manometer for
the pump pressure and the concentrate
pressure and determine the differential
pressure.
 Compare the ascertained differential
value with the value set at the time of
startup (see startup report).
 The membrane filter unit must be
blocked if the differential pressure has
increased by more than ______ MPa;
no further adjustments are possible.
Stop production of drinking water and
inform Kärcher Customer Service.
Mixing the chemicals
Danger
Risk of burns injury on account of chemi-
cals. Please wear safety gloves and safety
goggles while handling acid-resistant
chemicals.
Hinweis
The values for dosing the different chemi-
cals are based on the raw water analysis
and the plant output. Kärcher Customer
Service will enter the dosing quantities re-
quired for your plant in the following table at
the time of startup.
4
-
EN
Dosing table
Dosing Chemical Dosing per 10 l
con- of dosing solu-
tainer tion [ml]
Pre- RM 852 Ster-
chlorin- ilisation
ation agent*
Calcium hy-
prochlorite *
Pre- RM 5001
flock-
ing
Anti- RM 5000
scalant Hardness
stabiliser
Post- RM 852 Ster-
chlorin- ilisation
ation agent*
Calcium hy-
prochlorite *
* These chemicals can be used as alter-
natives.
1 Cover
2 Mixing rod
3 Dosing pump
4 Dosing container
 Wear safety gloves and safety goggles.
 Remove the can from the dosing sta-
tion.
Danger
Risk of injury on account of chemical reac-
tion. The dosing stations should not get in-
terchanged and be filled up with the wrong
chemicals.
Caution
Risk of flocculation or other undesirable
chemical reactions. Use only drinking water
from WPC 600 BW/FW to mix the chemi-
cals.
The dosing depends on the filling level in
the dosing container.
Fully emptied dosing container.
 Fill 10 l drinking water in the dosing con-
tainer.
 Using a measuring beaker, measure
7.5 times the quantity mentioned in the
dosing table and add it to the dosing
container.
 Fill up the dosing container up to the
mark "75 l" with chlorine-free water.
15