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suction side. Hence when the appliance is fitted in an aquarium, it is usually positioned
after flowing through the filter, and in the pond before flowing through the filter. For this
reason, newly established ponds should be allowed to run for 4 - 8 weeks without a UV-C
water clarifier in order to allow sufficient cleansing bacteria to settle in the filter. Illustration
B shows a typical installation.
The JBL AquaCristal UV-C Water clarifier can be safely operated to pressures of up to 1.0 bar.
The appliance cannot be operated with pumps which produce more than 1.0 bar pressure or
connected directly to the water mains.
In the case of the 9 - 36 W models, the hose connection nozzles are secured with union nuts,
allowing easy installation and dismantling, as well as rotation in any direction.
1. Check that the voltage stated on the type plate of the power supply unit (4) corre-
sponds to the voltage to be used.
2. Attach the clamp holders (6) in the required position using the screws provided. To
ensure the best possible ventilation, we recommend installing the appliance vertically
or horizontally with the hose connection nozzles uppermost.
3. Select the appropriate hose connection nozzles (7, 8), (only applies to 9 – 36W). If nec-
essary, saw off the variable nozzles to the required diameter. Fit the nozzles, tighten-
ing only by hand, do not use any tools! Grease the washers with Vaseline if necessary.
Check that the washers are a tight fit, particularly when fitting the union nuts (9) on the
9 – 36 W models.
4. Unscrew the casing lid (3) and fit the UV-C lamp (5) provided in the lamp holder. Do not
handle the glass of the lamp. For the 18 and 36 W models, place the rubber bearing
provided (5 A) on the end of the lamp. Make a visual check of the quartz glass insert (2)
for damage. Screw the lid onto the casing, tightening by hand.
5. Press the casing (1) into the clamp holders (6) and close them.
6. Push the hoses onto the nozzles and secure with hose clips. Put the pump or filter into
operation and check that the appliance is watertight.
7. Connect the appliance to the mains. If the appliance is operating correctly, blue radia-
tion from the lamp should be visible through the transparent, UV-C-resistant hose con-
nection nozzles. If not, check the plug connections and the positioning of the lamp in
the holder.
Please note: The power supply units (ballast) are splash-proof, but not watertight. When
installed for a pond, care must be taken that the connection is sufficiently protected against
splashes of water.
Note on operating check:
For your own safety, a safety switch is fitted in the casing lid (3), which only allows the UV-C
lamp to operate when the casing lid is closed. Never attempt to check the operation of the
lamp by switching the safety switch with the casing lid open. This may result in damage to
the eyes and skin.
