6
DC output. To open the pump, remove retaining plate and release the pump lock by turning it. After setting the
pump up, please ensure you can always reach the power plug easily.
4.2. DC Runner Controller
The included
DC Runner
Controller is switched between power supply and pump to adjust the 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. Short pulse rates
are not possible due to the start-up delay on the pumps.
Press the FEED button until 4 LEDs (Fig. 2, No. 2) light up in the middle to activate the 0 - 10 V socket. In the
same way, the 0 - 10 V output can be deactivated again.
Fig. 2: DC Runner Controller
1.
Feed button 3. Power supply
2.
LEDs 4. 0 - 10 V socket
By keeping the minus and FEED buttons pressed and hold until the LEDs flash once, the keyboard of the controller
can be locked or unlocked.
4.3. Maintenance / Cleaning the pump
Depending on contamination, the pump and needle wheel have to be cleaned occasionally, at least in two-
months intervals, if necessary more frequently. First of all, the pump is dismantled in reverse order according
to the installation instructions. Then, take off the pump lock. Now, the complete impeller can be taken out.
5.
Starting the skimmer
The air tube has always to be installed upward over the water level in the skimmer.
This air tube must not
hang down.
Therefore, it should always be connected to the silencer. Connect the bottom end of the tube
to the air intake of the pump. The foam cup is simply inserted into the skimmer’s housing from the top.
The ideal water level for each skimmer is listed in the table. With higher or lower water levels, airflow rate
and skimming power will decrease. The filter sump should either contain an overflow edge that keeps the
water level in the ideal range or it should be equipped with an automatic refill unit, such as Aqua Medic Refill
System pro.
The skimmer will be filled by starting the venturi pump on a low level. A very quick water flow leads to very
fast overflowing of the foam cup. Here, special caution is required, if one connects the outflow nozzle of the
foam cup via a hose with a container standing beside the filter sump. There is the danger that the container
overflows if the skimmer cooks over. Thus, this would also lead to strong loss of water in the filter sump
whereby other devices could run dry and therefore, could be damaged. The flow should be adjusted by using
Safety advices
The pump is constructed for indoor use only. Before working on the aquarium or pump, the power
plug has to be disconnected from the mains. The connection cable and the power plug must not be
changed. If the power cable is damaged, the pump must be scrapped.
