T.I.P. WDF 10000 UV 11 Mode D'emploi page 16

If you notice an increase in algae formation and/or see that lime scale is increasing, you will need to check
that the UV-C unit is working properly. UVC tube (Fig. UV-C 11 W, 2 / Fig. UV-C 18 W, 5) has a limited
period of effectiveness (approx. 4000 to 5000 hours) and should be replaced at the latest after one season
(March to October). Appropriate replacement tubes are available at the service address specified below.
If the pond filter has been switched off for a longer period of time, ensure that the quartz glass cylinder (Fig.
UV-C 11 W, 3 / Fig. UV-C 18 W, 2) that encloses the UVC tube is clean.
If the filter has not been operated for a longer period of time, under some circumstances it may be necessary
to replace the sealing rings (particularly for the UVC emitter).
Cleaning of the UV-C lamp
1. Disconnect the UVC lamp from the mains power and safeguard it from being switched on unintentionally
2. Comply with the safety measures.
3. Allow the water to completely run out of the unit.
4. Dismantle the UVC lamp. Take the lamp out of the compartment in the filter housing.
6.2.1. Cleaning of the quartz glass cylinder UV-C 11W (WDF 10000 UV 11)
1. After removing the lamp socket (1) and UVC tube (2), carefully pull the quartz glass (3) out of the
housing. Use a wide screwdriver, a coin or similar item to do so. Insert the tool into one of the notches
visible at the beginning of the housing thread and carefully pry out the quartz glass.
2. Clean the quartz glass (3) and the housing (5) thoroughly with water and a soft cloth.
3. Use a suitable solvent to remove any lime deposits on the quartz glass (3). Rinse thoroughly before
installation.
4. Check the quartz glass for damage. A defective quartz glass must always be replaced.
Fit everything in reverse order.
Make sure that the O-ring (4b) is properly seated in the corresponding groove in the housing and the thinner
O-ring (4a) in the quartz glass socket. Grease the O-rings with Vaseline if required. Push the quartz glass
completely into the housing of the lamp. Check that the protective cap is fitted onto the tube (7). Push the
lamp socket with the UVC tube carefully into the quartz glass and tighten the socket firmly by hand.
6.2.2. Replacing the UV-C lamp UV-C 11W (WDF 10000 UV 11)
1
.Always switch off the power supply by pulling the mains plug before maintenance work.
2.Unscrew the bulb socket (1) of the lamp housing, remove the UVC tube (2) and replace the old tube with a
new one. Fit everything in reverse order (see above) and be sure that the O-rings are correctly fitted. Grease
the O-rings with Vaseline if required.
Caution! Do not touch UVC tube (2) directly with your hand; put on cotton gloves!
Old UV-C tubes shall not get broken and must not be disposed in regular garbage bin. Contact your local
waste disposal company. Do not use an sharp edged tools. In case Quartz glass cylinder or O-ring are
defect, they should get replaced immediately.
6.2.3. Function check of UVC lamp UV-C 11W (WDF 10000 UV 11)
You can check the function of the UVC tube by the bluish shimmer on the transparent hose connection (6) of
the UVC emitter. This check works best in low light.
If the UV-C tube does not burn, the UV-C lamp may not have been assembled correctly.
Check this using the installation instructions above.
6.2.4. Cleaning of the quartz glass cylinder UV-C 18W (WDF 20000 UV 18)
1. Unscrew the base (3) of the plastic housing (1) of the lamp and replace the UV-C tube (5) if necessary
2. After disassembling the lamp socket (3) and UV-C tube (5) take carefully the quartz glass (2) out of the
housing (1). You may use a wide screw driver or a coin. Insert the tool into the recess, which is at the end
of the thread of the protective sleeve and lift it carefully out.
3. Clean the quartz glass (2) and housing (1) thoroughly with water and a soft cloth.
4. If needed, remove lime scale from the quartz glass (2) with a suitable solvent. Rinse out thoroughly
before reassembling.
5. If quartz glass tube or O-rings are defective they must always be replaced
6.2.5. Replacement of the UV-C lamp: UV-C 18W (WDF 20000 UV 18)
1. Unscrew the base (3) of the plastic housing (1) of the lamp, remove the UV-C bulb (5) and replace the old
one with a new one.
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