Sera SW10465 Mode D'emploi page 12

Test run
Prior to using your sera UV-C System 24 W for normal
operation, the fully installed unit must be tested under
normal operation conditions for potential leaks by run-
ning it in simple water passage mode for at least
24 hours without turning the UV-C system on. DO NOT
CONNECT THE UV-C LAMP TO THE POWER/MAINS
SUPPLY FOR THIS TEST. This test allows you to detect
leaks.
Carry out the directions of the assembly instruction to
do so and connect the UV-C system to a suitable pump
for 24 hours. The water flow and pressure (pumping
height) should match that of normal operation.
CAUTION: The UV-C system must not be con-
nected to the power/mains supply, or it must be
immediately disconnected, respectively, if moisture
traces are detected in the UV-C lamp or in the
quartz glass cylinder.
Check all parts for possible damage in this case (see
sections "Cleaning and Maintenance/Lamp replace-
ment"). Consult your specialty retailer if you cannot
detect or correct the defect by doing so.
Testing the UV-C lamp
Attention! Be sure to wear UV-C protection glasses.
Briefly switch on the assembled UV-C system for
checking whether the UV-C lamp of the sera UV-C
System is working. A dim bluish light can be seen
through the viewing glass in the lid (6.2) when the lamp
is on. Avoid looking into the UV-C light for a longer time.
Cleaning
Disconnect all electrical devices from the power/mains
supply by pulling their plugs. Dismantle the entire sera
UV-C System 24 W. Loosen the screws of the fixing
bracket (6.6.2). Take the UV-C lamp out of the bracket.
Loosen the large union nut (6.12) on the side of the unit
that holds the power cord. You can pull the quartz glass
cylinder (6.9) along with the lamp (6.10) out of the cas-
ing on the side that holds the power cord. Caution! The
glass parts are easily broken. Clean the quartz glass
cylinder with a soft cloth. Check whether the lamp has
cracks or similar damages after you have cleaned the
quartz glass cylinder. Do not switch on the lamp for
doing so. Please see the section "Maintenance/
Lamp replacement" in case the lamp is not intact any
more. Now clean the plastic casing on the inside. Use a
long-handle brush to do so. You can use a neutral, sol-
vent-free cleaning agent for cleaning. Cleaning agents
are very dangerous to many aquatic organisms and
must not get into the aquarium or pond water! All
cleaned parts must be rinsed carefully before they come
into contact with aquarium or pond water again.
Maintenance/Lamp replacement
The UV-C lamp should be replaced after one year.
Disconnect all electrical parts and units in the aquar-
ium or pond from the mains supply before opening
the casing of the UV-C lamp!
There are sensitive glass parts inside the UV-C system
that may easily break when handled inappropriately.
Pour the water out of the UV-C system.
Loosen the union nut (6.12) on the side of the unit that
holds the power cord.
Caution! The UV-C lamp is approx. 31 cm (12.2 in.) long
and directly connected to the lamp holder (6.11). It can
easily break in case of abrupt movements. You can pull
out the lamp only after clicking it out of its fixture. Pull
out the lamp holder (6.11) with the lamp by approx.
10 cm (4 in.) to do so. Gently pull out the lamp out with-
out twisting it once you can hold the lamp and the
casing separately. Do not let go of the lamp!
Fold the fixture to the side and carefully pull out the lamp
entirely. The bottom end of lamp is equipped with a
bracket (6.10.1) which ensures correct positioning inside
the quartz glass tube. This bracket must by all means be
attached to the new lamp.
An electronic ballast (6.6.1) with electronic starter is
located in the casing of the UV-C lamp. The ballast may
only be replaced by specialized staff.
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