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Karcher WPC 2500 BW: Maintenance and care

Maintenance and care: Karcher WPC 2500 BW

Electrical system

Before Commissioning

Maintenance and care

– The electrical connections must be

Î Check the connection of the plant to

done by an electrician according to

Danger

the raw water source.

IEC 60364-1.

Health hazard on account of poor quality

Î Ensure uninterrupted flow of the gen-

– Never touch damaged or ripped mains

of drinking water. . The control tasks out-

erated drinking water into a tank or a

cables. If required, pull out the plug

lined in this maintenance plan are to be

suitable user-side facility.

from the socket immediately.

carried out according to the schedule in

– Never operate the unit with damaged

order to ensure the quality of drinking wa-

cable.

Note

ter. If the deviations in the target values

The driking water must be able to flow out

cannot be corrected by taking the pre-

Symbols

without any counter-pressure. The height

scribed measures, then stop production of

The following symbols are used in this op-

difference must not be more than 3 m.

drinking water and inform Kärcher Cus-

erating manual:

tomer Service immediately.

Filling up the dosing station

Danger

Note

Indicates an immediate threat of danger.

Failure to observe the instruction may re-

If the plant is fitted with one or more dos-

sult in death or serious injuries.

ing stations, then it needs to be ensured

that this has been connected properly and

몇 Warning

filled up.

Indicates a possibly dangerous situation.

Î Fill up dosing station (refer chapter

Failure to observe the instruction may re-

"Maintenance and Care/ Maintenance

sult in light injuries or damage to property.

jobs")

Note

Operation

Indicates useful tips and important infor-

mation about the product.

Switching on the plant

Proper use

Î Check whether the mains plug of the

The plant is used for treating surface wa-

dosing pumps of the dosing stations is

ter, water from natural springs and river

connected to the sockets of the plant.

water.

Î Check the position of the operating

Due to the modular structure, turbid sub-

swtich:

stances, hardeners, salts, bacteria and

"Automatic“ position: the plant is

water can be separated depending on the

controlled by an external floater switch

quality of raw water.

in the drinking water tank.

Environmental protection

"Manual" position: the plant is man-

ually switched on and off using the

main switch.

The packaging material can be

Î Turn the main switch to position "1";

recycled. Please do not throw

drinking water production will start.

the packaging material into

Monitoring elements

household waste; please send

it for recycling.

Display media and active carbon filters

Old appliances contain valuable

–Display time

materials that can be recycled;

Display of the operating panel

these should be sent for recy-

Alternating display of:

cling.. Batteries, oil, and similar

– Plant/ version number and operating

substances must not enter the

status.

environment. Please dispose of

– Drinking water temperature and con-

your old appliances using ap-

ductance.

propriate collection systems.

– Operating hours (_ _ _ _ _h_ _min).

Start up

Switching off the plant

Danger

몇 Warning

Risk of injury if the plant is not installed

Risk of damage. If the plant is to be shut

properly. Risk to health on account of

down for more than 14 days, then Kärcher

poorly treated drinking water. The plant

Customer Service must carry out some

may be put into operation only when set-

preservative tasks.

up, installed and prepared for operation by

Î Turn main switch to "0"; the plant will

skilled and authorized personnel.

stop production of drinking water.

Note

Do not switch off the plant overnight! The

media filter is automatically cleaned dur-

ing the night. There is a risk of damage to

the plant if you do not do this cleaning.

14 Deutsch

Maintenance schedule

Time Check / Activity Target value In case of deviation

daily Filling level of dosing container adequate filling refill

Air bubbles in the dosing pipes no air bubbles Bleed dosing pump.

Drinking water flow based on the startup value Lowered by less than 10% Fine regulation

Drinking water guide value based on the start-

Increase within 10% Fine regulation

up value

Pressure difference between pump and con-

maximum 15% above startup difference Kärcher Customer

centrate pressure

Service

Counter/meter for media and active carbon fil-

Reflushing has taken place in the last 24 hours Kärcher Customer

ters

Service

Pressure difference fine filter maximum 0.08 MPa (0.8 bar) Replace fine filter

Visual inspection of the plant no leaks Kärcher Customer

Service

weekly Fill up operations log

monthly Clean and rinse dosing container

Visual inspection of raw water pump No damage/ leaks can be detected Kärcher Customer

Service

Float switch in drinking water tank no functional disruption can be detected Kärcher Customer

Service

Î Set the dosing pump to the original dos-

Maintenance Works

Bleed dosing pump.

ing frequency.

The dosing pump must be dearated if the

Check media and active carbon filters

pump has sucked in air (for e.g. if the dos-

ing container has been completely emp-

tied).

– The unit will stop; the display shows the

interruption "Motor protection".

Note

This errror message is displayed independ-

ent of which dosing container has been

used.

1 Return key

1 Display

2 ADVANCE key

Î Accept the interruption message on the

operating panel by pressing the Return

During operations, the current time is

key; the unit will start.

shown in the display.

Î Press ADVANCE key for 5 to 6 sec-

Replace fine filter

onds. The display will show the first sta-

Î Check the pressure difference between

tus display from the list shown beloe.

the two manometers. Change filter inlay

Î To go to the next display, press once

if value is more that 0.08 MPa (0.8 bar):

1 Dosing frequency button

again the ADVANCE key briefly.

Î Turn the main switch to position "0"

2 Screw connections

Î Interrupt raw water inflow.

3 Dosing pump

Display Significance

Î Open the raw water testing tap to de-

pressurise the filter.

2000 Not important

Î Refill dosing station (refer chapter on

Startup)

0000 Not important

Î Loosen screws on the dosing pump.

D–07 Number of days until the

Î Read and note the dosing frequency

next reflushing

that has been set at the LEDs of the

dosing pump.

–001 Number of reflushing that

Î Set the dosing frequency to 100% by re-

have been conducted

peatedly pressing the dosing frequency

0–01 days - hours since the last

button and waiting until there are no

reflushing

more bubbles in the suction pipe (ap-

prox. 1 minute). Absorb the oozing dos-

If you do not press the ADVACE key for

ing liquid with a piece of cloth.

some time, the display goes back to show-

Î Tighten the screws.

ing the time.

English 15

WPC 2500 BW-AM:

Î Place the spring caps on the filter can-

the two flow meters of the concentrate

dles.

and the drinking water.

Î Replace the screw plate and fix the

Î Readjust both the valves if required.

screws.

Note

Î Replace the lid and fasten the clamping

Inform Kärcher Customer Service if this fine

ring.

regulation does not lead to any changes to

Î Close raw water testing tap.

the drinking water flow.

Î Restart the raw water flow.

Î Set main switch to “1”.

(2) Conductivity of drinking water has in-

creased from _____µS/cm to _____µS/cm

Fine regulation of the operating pres-

sures

Note

몇 Warning

Small increases in the conductivity of drink-

ing water does not affect the quality of the

Danger of damage to the plant. The follow-

drinking water.

ing values should not be exceeded when

you make changes to the plant settings:

1 Filter key

– Max. pump pressure 2.1 MPa (21 bar)

2 Filter casing

– Maximum drinking water volume:

3Filter pot

4 Filter inlay

WPC 2500 BW-AM 2,500 l/h

Î Unscrew the filter pot using the filter

WPC 5000 BW-AM 5,000 l/h

key.

WPC 10000 BW-AM 10,000 l/h

Î Take out the filter inlay.

Î Clean filter casing and filter pot if re-

– The concentrate quantity should not fall

quired.

below the value at the time of startup.

1 Flow meter for drinking water

Î Insert new filter inlay into filter pot.

– Do not change the setting of the pump

regulation valve.

2 Concentrate regulation valve

Î Install and tighten filter pot.

3 Pressure regulation valve

Î Close raw water testing tap.

Note

4 Display

Î Restart the raw water flow.

There is a time delay before the plant reacts

5 Manometer for membrane input pres-

Î Set main switch to “1”.

to the changes done to the regulating

sure

valves. Hence do the settings at the pres-

WPC 5000/10000 BW-AM:

sure regulation valve and the concentrate

regulation valve in small steps and wait for

Î Read the current conductivity value on

the respective effect.

the display of the operating panel and

compare it to the value at the time of

start-up (see start-up report). If the

(1) Drinking water flow has fallen from

drinking water conductivity has in-

_______ l/h to _______ l/h

creased to _____µS/cm, then you need

to rinse the membrane of the RO filter

unit:

Î Open the concentrate regulation valve

in small step by turning it in the anti-

clockwise direction until the conductivity

has reached the target value.

Î Close the pressure regulation valve in

small steps in the clock-wise direction

until the flow meter of the drinking water

1 Manometer

has reached the target value.

2 Manometer

몇 Warning

3 Raw water testing tap

1 Flow meter for drinking water

Danger of damage to the RO membrane.

4Cover

2 Flow meter for concentrate

While closing the pressure regulation valve,

5 Clamp ring

3 Concentrate regulation valve

ensure that the membrane input pressure

6 Screw plate

4 Pressure regulation valve

does not exceed 2.1 MPa (21 bar).

7 Spring cap

5 Flow meter for concentrate backflow

Note

8 Filter candle

The purpose of this setting procedure is to

Î Read the quantity of drinking water at

9 Filter casing

increase the concentrate quantity.

the flow meter for drinking water and

Î Repeat these setting steps if required.

compare it to the value when the plant

A WPC 5000 BW-AM

Eventually, the original drinking water

was started (see start-up report). If the

quantity will no longer be reached.

B WPC 10000 BW-AM

drinking water flow ahs fallen to ______

l/h, then do the following fine regulation:

Î Loosen the clamp ring.

Î Close the pressure regulation valve in a

Î Remove the lid.

clock-wise direction until the flow meter

Î Unscrew the screw plate.

for the concentrate backflow has almost

Î Remove spring cap.

achieved the target value.

Î Take out the filter candle.

Î Close the concentrate regulation valve

Î Clean the filter casing.

slowly in the clock-wise direction until

Î Insert new filter candle.

the required target value is reached for

16 English

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