© by WilTec Wildanger Technik GmbH Item 50753, 50757, 50758, 50760 Page 5
http://www.WilTec.de
http://www.aoyue.eu 09 2021-1
http://www.teichtip.de
Electrical connection
•The electrical connection is made to an earthed socket 230 V ~ 50 Hz. Fuse min. 10 A.
•The device has an ON/OFF switch with which it is switched on and off. The inner control lamp
of the switch is lit when the motor is switched on.
•The motor is protected from overcharge and blockage with the help of the built-in thermal motor
protection. When overheated, the pump motor is automatically switched off by the thermal pro-
tection; after cooling down, the pump automatically re-starts.
Suction line
•Connect a suction hose (plastic hose min. ¾″ spiral reinforced) directly or with a thread nipple
to the suction connection (1″ internal thread) of the pump.
•The suction which is used should have a suction valve. In case the suction valve cannot be
used, a check valve should be installed in the suction line.
•Position the suction line from the water withdrawal to the pump on a rising gradient. Avoid by all
means placing the suction line higher than the pump height; air pockets in the suction line would
slow down and impede the suction process.
•The suction and the pressure line have to be installed in such a way, that they do not exert any
mechanical pressure on the pump.
•The suction valve should lie deeply enough in the water, so that a drop in the water level cannot
lead to the pump running dry.
•A leaking suction line prevents the suction of water due to air intake.
•Avoid sucking in foreign particles (sand, etc.) and, if necessary, install a prefilter.
Pressure line connection
•The pressure line (should be at least ¾″) must be connected directly or via a thread nipple to
the pressure line connector (1″ internal thread) of the pump.
•With the suitable screw joints a ½″ pressure hose can be used. Correspondingly the pump out-
put is reduced due to the small pressure hose.
•During the suction process the shut-off devices (valves, spray nozzles) in the pressure line must
be completely open so that the air in the suction line can escape freely.
Initial operation
1. Place the device on a level and solid surface the temperature of which does not exceed 40 ℃.
On the installation site, place the pump horizontally so that the bearing can operate correctly.
Screw the pump to the surface.
2. Install the suction line so that it is ready for use. The suction hose should not be narrower than
the suction connection. If the suction height exceeds 4 m, use a suction line with a larger diam-
eter.
3. Connect to mains.
4. Fill in the pump with water at the pressure port.
5. During the suction process, the shut-off devices (valves, spray nozzles) in the pressure line
must be completely open so that the air in the suction line can escape freely.
6. Depending on the suction height and the air quantity in the suction line, the first suction process
can take approx. ½ min–5 min. With longer suction periods of sucking in, new water should be
refilled.
7. If the pump is removed after its use, do not forget that it has to be refilled with water before you
operate the pump again and before restarting and connecting it again.
Maintenance hints
The machine is largely maintenance-free. However, for a long working life and continuous operation,
we recommend regular checking and proper care.
