Kärcher WPC 2500 BW-AM Bedienungsanleitung Seite 16

WPC 2500 BW-AM:
1 Filter key
2 Filter casing
3 Filter pot
4 Filter inlay
Unscrew the filter pot using the filter
key.
Take out the filter inlay.
Clean filter casing and filter pot if re-
quired.
Insert new filter inlay into filter pot.
Install and tighten filter pot.
Close raw water testing tap.
Restart the raw water flow.
Set main switch to "1".
WPC 5000/10000 BW-AM:
1 Manometer
2 Manometer
3 Raw water testing tap
4 Cover
5 Clamp ring
6 Screw plate
7 Spring cap
8 Filter candle
9 Filter casing
A WPC 5000 BW-AM
B WPC 10000 BW-AM
Loosen the clamp ring.
Remove the lid.
Unscrew the screw plate.
Remove spring cap.
Take out the filter candle.
Clean the filter casing.
Insert new filter candle.
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English
Place the spring caps on the filter can-
dles.
Replace the screw plate and fix the
screws.
Replace the lid and fasten the clamping
ring.
Close raw water testing tap.
Restart the raw water flow.
Set main switch to "1".
Fine regulation of the operating pres-
sures
Warning
Danger of damage to the plant. The follow-
ing values should not be exceeded when
you make changes to the plant settings:
– Max. pump pressure 2.1 MPa (21 bar)
– Maximum drinking water volume:
WPC 2500 BW-AM
WPC 5000 BW-AM
WPC 10000 BW-AM 10,000 l/h
– The concentrate quantity should not fall
below the value at the time of startup.
– Do not change the setting of the pump
regulation valve.
Note
There is a time delay before the plant reacts
to the changes done to the regulating
valves. Hence do the settings at the pres-
sure regulation valve and the concentrate
regulation valve in small steps and wait for
the respective effect.
(1) Drinking water flow has fallen from
_______ l/h to _______ l/h
1 Flow meter for drinking water
2 Flow meter for concentrate
3 Concentrate regulation valve
4 Pressure regulation valve
5 Flow meter for concentrate backflow
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 concentrate backflow 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.
Readjust both the valves if required.
Note
Inform Kärcher Customer Service if this fine
regulation does not lead to any changes 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.
2,500 l/h
5,000 l/h
1 Flow meter for drinking water
2 Concentrate regulation valve
3 Pressure regulation valve
4 Display
5 Manometer for membrane input pres-
sure
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:
Open the concentrate regulation valve
in small step by turning it in the anti-
clockwise direction until the conductivity
has reached the target value.
Close the pressure regulation valve in
small steps in the clock-wise direction
until the flow meter of the drinking water
has reached the target value.
Warning
Danger of damage to the RO membrane.
While closing the pressure regulation valve,
ensure that the membrane input pressure
does not exceed 2.1 MPa (21 bar).
Note
The purpose of this setting procedure is to
increase the concentrate quantity.
Repeat these setting steps if required.
Eventually, the original drinking water
quantity will no longer be reached.