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Parts overview
1.1
Ballast (UVC-Xtreme 800 / UVC-Xtreme 1200)
1.2
Nozzle for valve (800)
1.3
Nozzle for valve (1200)
1.4
"IN"/"OUT" valves with seal rings (800)
1.5
"IN"/"OUT" valves with seal rings (1200)
1.6
External O-ring for valve (800)
1.7
External O-ring for valve (1200)
1.8
Internal O-ring for valve (800/1200)
1.9
Suction pump with attached parts (800/1200)
1.10 Inverter for integrated UV-C (800/1200)
1.11 UV-C indicator lamp on circuit board with plug socket (800/1200)
1.12 UV-C socket with cable (800/1200)
1.13 Chamber cover for pump (800/1200)
1.14 Running unit with front bearing (800/1200)
1.15 Sleeve for shaft bearing (800/1200)
1.16 Back bearing for running unit (800/1200)
1.17 Plastic screws for front bearing (800/1200)
1.18 UV-C protection magnetic contact (800/1200)
1.19 90° angle pieces pump suction side (800/1200)
1.20 UV-C tube with union nut (800/1200)
1.21 Sponge with ridges (800/1200)
1.22 Amalgam UV-C lamp 5 W (800/1200)
1.23 Clips small for filter head (800/1200)
1.24 Clips large for filter canister (800/1200)
1.25 Accessories box (800)
1.26 Accessories box (1200)
1.27 Control circuit board with plug sockets (800)
1.28 Control circuit board with plug sockets (1200)
1.29 Filter head screw kit (800/1200)
1.30 Hose 18/23 mm (0.71/0.91 in., 1200) / Spare part
1.31 Filter head seal (800/1200)
1.32 Glass cylinder with seals (800/1200)
1.33 Filter media basket seal (800/1200)
1.34 Filter media basket (800/1200)
1.35 sera crystal clear Professional (800/1200)
1.36 sera siporax Professional (800/1200)
1.37 Tubing "IN" (800/1200)
1.38 Tubing "OUT" (800/1200)
General function description
1. Motor:
The entire filter as well as the pump built into the external filter are oper-
ated with a 24 V DC / 2 A ballast (1.1). The low voltage motor allows for
8 different settings. The water flow rate through the filter of course depends
on how the baskets are filled with filter material. The finer the filter material,
the more water flow is slowed down. The stronger biogenic or particular
layers on the filter materials are, the more the flow performance is reduced.
In case of a sinking flow rate, the filter material should therefore be cleaned
as to reinstate the previous flow rate. Hoses can also bear a considerable
amount of biofilm layers, which may strongly reduce the flow rate.
2. Rotor (3, 4.1 – 4.7):
The rotor is hydrodynamically optimized and provides a special noise
reducing bearing.
You first need to remove the two 90° angle pieces (4.1) between UV-C
intake cylinder and motor chamber to get access to the running unit
(3). These two angle pieces are only pushed into each other and can
be separated from the UV-C unit by twisting against the motor nozzle.
The motor cover for pump (4.2) can be taken off by turning it 90° in the
bayonet. The rotor is now exposed freely. In case of deposits you can
now remove them. The rotor should be freely and easily rotatable by
hand. If this is not the case you should check the back magnetic part
of the running unit.
Carefully unscrew the two white plastic screws (4.3) for removing the run-
ning unit, then carefully take out the rotor with its holder plate and shaft
(3/4.4). The back star-shaped EPDM bearing with the central graphite
bearing can be removed with a pair of tweezers if required (4.5/4.6).
Ensure correct positioning of the EPDM bearing during assembly. It
has gaps that fit in noses on the casing in the front and back bearings.
Make sure the rotor is freely rotatable before assembling the pump cham-
ber. Then put the pump chamber lid on and make the push-on connection
to the UV-C nozzle by means of the two 90° angle pieces clickable into
each other (4.7 – 4.1).
3. Water flow through the filter:
The water flows through the filter media baskets (1.34) from the top
downwards.
Water flowing into the filter is directed into the filter through the "IN"
intake valve and gets on the filter media in the uppermost basket, which
is equipped with a sponge with ridges (1.21) and sera crystal clear
Professional (1.35). The baskets underneath can be filled, for instance,
with sera siporax Professional (1.36). After the water has flown through
the last basket it is drawn to the UV-C unit through the central duct.
Here, the mechanically and biologically pre-cleaned water is irradiated
by the strong UV-C amalgam lamp and directed into the motor chamber
and the aquarium through the "OUT" outlet valve (5.1/5.2).
4. Function of the electric suction pump (6.1 – 6.6):
Bigger amounts of air are located in the canister of the filter and the filter
media especially in case of a new setup or after cleaning the filter. This
needs to be removed in order to make the filter function correctly and
quiet. Make sure that the filter volume is filled with water by about two
thirds, and put the filter head on (6.1). Please make sure the head seal
O-ring is seated correctly (6.2) and lock the head to the canister (6.3).
Now reconnect the valves with their attached hoses to the filter head and
open the valve taps (6.4). Make the electric connection to the filter head
via the ballast and its plug connector (6.5), and plug the mains plug of the
ballast into the mains socket. The motor will start running. Now press the
"S" key on the control panel (2). The motor will stop immediately, and the
suction pump will now begin drawing air trapped out from underneath
the filter head and expel it through the "OUT" connector. The suction
pump will stop after it has run for about 15 seconds, and the filter pump
motor will restart by itself. The air is then pressed out of the hose and,
above the motor, into the aquarium. This process can be repeated several
times if required, even during the operational phase of the filter. You will
see the LEDs of the control panel lighting one after the other during the
suction pump function. The motor will return to the previously chosen
performance setting after having finished the suction pump action and
press the air through the outlet hose. You can stop suction pump action
anytime by pressing "S" (2) again. You should choose a higher motor
performance setting in case plenty of air is trapped. This makes it easier
for the pump to press the air out. You can reduce the performance as
desired afterwards. The gases released during filter operation gather
underneath the filter head and are continuously removed through a hose
at the motor pump chamber (6.6).
5. Function of the UV-C system:
Compared to other UV-C lamps, an amalgam UV-C lamp has a better
stabilized performance over the typical operational temperature range
between 80 and 90 °C (176 and 194°F). The specially doped lamp ensures
better distribution and density of metal steam and, correspondingly,
constant electric flux through the amalgam lamp. The UV-C radiation
therefore reaches an overall higher emission performance, which in re-
turn provides a higher potential for irradiating pathogens and algae in
the water. The lamp should be operated permanently for best results.
Switching it on and off daily should be avoided as it does not make much
sense considering the combat of quickly multiplying pathogens. Depend-
ing on the switching cycles, the life expectancy of the amalgam UV-C
lamp is between one and two years. The lamp should be changed after
1.5 years as to ensure its full function. Should the lamp fail due to a
broken filament or similar, the blue LED indicator lamp on the top of the
filter will also turn off. We recommend exchanging the lamp as soon as
possible. Only use sera UV-C amalgam replacement lamps for these
external filters.
Operation
Step 1: Filling with filter media
Please fill your filter with the following filtration media from top to bottom:
– Sponge (1.21), profile facing upwards. This material holds back coarse
particles.
– sera crystal clear Professional (1.35): This filter material holds back
finest particles.
– Biofilter material [e.g. sera siporax Professional (1.36) for highest
biological filter performance].
This order of filter media increases the running time between cleaning
of the filter (10).
The larger the amount of biological filtration material, the higher the bio-
filter performance of the filter. The UVC-Xtreme 800 external filter has
2 filter media baskets (1.34), one of which can be used for biofilter mate-
rial; the UVC-Xtreme 1200 external filter has 4 filter media baskets (1.34),
at the maximum 3 of them can be used for biofilter material. Of course,
other filter media such as active carbon or absorbents can be used
temporarily.
Step 2: Positioning
Please place the filter so it stands safely and does not amplify vibra-
tions (7.1). The connectors are rotatable by 360° (7.2) and allow for easy
connection of the hoses. These are 1.5 m (4.9 ft.) long and allow for
sufficient freedom for positioning the filter underneath or beside the
aquarium.
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