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Fig. 5: Venturi pump DC Runner 3.1 incl. 3D-needle wheel
1. 4 Rubber feet
2. Retaining plate
3. Pump motor
4. Rear ceramic bearing
5. Rotor incl. 3D needle wheel
6. Housing's sealing
7. Pump head
8. Seals for pressure connection
The pump DC Runner 3.1 is operated by an electronic safety transformer at AC 100 – 240 V / 50 –
60 Hz and 24 V DC output. Power consumption of the pump is 8 watts, protection rating is IP X8.
To open the pump, remove retaining plate and release the pump head (7) by turning it.
DC Runner Controller 3.1
The included
DC Runner
output.
The power can be adjusted by pressing the +/- buttons, the level is displayed by LED. If
you press the button „FEED", the output will stop for 10 minutes.
There is an automatic shut off if there is no water for 2 minutes. Pull the plug and then re-insert it
to take the controller back into operation. Controller, plugs and sockets have to be kept dry.
0 - 10 V: The pumps must be operated with at least 60% power, otherwise damage will occur.
When inserting the plug into the 0 - 10 V
automatically, this will be indicated by the lit LEDs.
Fig. 6: DC Runner Controller 3.1
1. –Button
2. LEDs
3. Power supply
4. 0-10 V socket
4.
Theory
Protein skimming is a method of physical water treatment. It uses a phenomenon known from our
daily experience: the adhesion of surface active substances to air water layers. If we add a drop of
oil to a water surface, a thin film is produced with a thickness of only one molecule. Surface active
compounds like proteins behave in the same way. The EVO 1000 uses its air bubbles to create a
large water surface for the waste substances to attach themselves to. These air bubbles are forced
9. Hose connection pressure side
10. Union nut pressure side
11. Connection for air hose
12. O-ring suction side
13. Reduction for air intake nozzle
14. Union nut suction side
15. Pump basket
16. Sealing plug
Controller is switched between power supply and pump to adjust the
socket
(Fig. 6, No. 4) it will be switched to 0 – 10 V
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