Inhoudsopgave
Advertenties
5.2.
Installation of the pressure line
The pressure line conveys the liquids to be discharged from the pump to the point of withdrawal. To
avoid dynamic flow losses, one should use a pressure line having at least the same diameter as the
pressure port (1) of the pump.
The pressure line to be used for this type of application is an appropriate flexible hose - for instance, a
specially designed drainage hose.
To facilitate installation, the scope of delivery includes one Multidimensional connector. providing the
following connection options: 1 x 59.61 mm (2''), male, 1 x 47.80 mm (1 ½ ''), male, and option for
hose connection of 51 mm and 38 mm.
When adapting the connection to the pressure line, please remove the narrower and thus
unnecessary parts of the multi-dimensional connection piece at the cutting points provided for this
purpose (a, b). To cut off these superfluous parts we recommend the use of a commercially available
saw. If this adaptation process is necessary, please perform it prior to connecting the multi-
dimensional connection piece to the pressure port of the pump.
5.3.
Stationary installation
For safety reasons we recommend a fixed installation of the pump. Therefor rigid pipes have proven to
be the ideal choice for the pressure lines. In this type of installation, we recommend that you
incorporate a check valve (non-return valve) in the pressure line immediately following the pump outlet
so that no liquid will flow back after the pump cuts out. To facilitate maintenance work, we also
recommend the installation of a stop cock valve downstream of the pump and check valve. This
arrangement is beneficial in that closing the stop cock will prevent the pressure line from running dry
after the disassembly of the pump.
5.4.
How to set the floating switch
Please make sure that the pump will cut out as soon as the water level decreases,
and the floating switch has reached the cut-out level.
Also, it must be made sure that the floating switch can move freely.
In the manual operation mode, the pump (with adjusted float switch) must be
constantly monitored to avoid dry running.
The pump is equipped with a floating switch (2) causing the unit to cut in or out automatically as a
function of the water level as soon as the water level has reached, or dropped below, the cut-out level,
the pump will cut out. When the water level reaches or rises above the cut-in level, the pump will
resume operation. The cut-in and cut-out levels can be adjusted by shortening or lengthening the
freely movable cable (3) of the floating switch. The length of the cable can be set at the cable duct (4)
located at the carrying handle (5) of the pump. In this regard, the relevant part is the freely movable
part of the cable leading from the cable duct to the floating switch. If this length increases, the cut-out
level will decrease, and the cut-in level will augment. Vice versa, if its length decreases, the cut-in
level will decrease whereas the cut-out level will be raised. Shall the pump continue to suck beyond
the automatic cut-out-level the float switch hast to be operated manually, e.g. by holding it in upright
position. To do this, you must remove the cable of the floating switch from the cable guide (4) at the
side.
Then adjust the floating switch to the intended holder (13) underneath the cable guide by sliding the
switch vertically into the holder from above so that the cable pointes downside. Just in this operation
mode the min. suction level given in the technical data chart can be achieved. However, the pump
must be constantly monitored to avoid dry running.
5.5.
How to position the pump
When positioning the pump, please make sure that the max. submersion depth indicated in the
technical data will not be exceeded. Likewise, please make sure that the minimum self-priming level is
not fallen short of. If everything is properly set, the water level may decrease down to the minimum
suction level once the pump is operating. Please position the pump on solid ground. Avoid placing it
on lose stones or sand. When positioning the pump, please do make sure that the pump cannot tip
over or sink into the ground with its intake openings (6). The penetration of sand, mud or comparable
matters is to be avoided. To position, lift up or carry the pump, please use only the carrying handle. If
required for lowering or raising the pump, you may connect a suitable lowering rope to the carrying
handle. In no case must the pressure hose, the mains cable or the cable of the floating switch be used
to position, to lift up or to carry the pump.
12
Translation of original operating instructions
4
Advertenties
Hoofdstukken
Inhoudsopgave
