EN 9
submerged waste water pump TWP 4036 E / TWP 7536 E / TWP 9000 ES / TWP 11000 ES
Adjusting the float switch
The device comes equipped with a float switch(4) which
switches the device on or off automatically according to the
water level. Check the float switch(4) for proper functioning at
regular intervals.
Switching point Water level
TWP4036E
Height for switch-on approx. 550mm
Height for switch-off approx. 120mm
TWP7536E
Height for switch-on approx. 600mm
Height for switch-off approx. 150mm
TWP9000ES / TWP 11000 ES
Height for switch-on approx. 600mm
Height for switch-off approx. 150mm
The pumping height can be regulated by means of the float
switch(4) and its position in the float switch locking device(3).
Please observe the following information regarding the float
switch(4):
• Make sure that the float switch(4) always has enough
clearance and is not permanently activated. This could
prevent the automatic switch-off causing the device to run
dry. This would damage the pump.
• Make sure that the float switch(4) is able to move freely
and does not suffer from a limited mobility caused by
obstacles.
• Observe a sufficient distance between float switch(4) and
float switch locking device(3), for this could prevent the
automatic switch-off causing the device to run dry.
• Make sure that the position of float switch(4) is adjusted in
a way, that it does not lie flat on the ground. This could
prevent the automatic switch-off causing the device to run
dry.
If required, lock the float switch(4) by means of the float switch
locking device(3). To do so, push the float switch locking
device(3) from above into the respective holder on the housing
with the float switch(4) pointing downwards. In order to adjust
the desired pumping height, insert the cable of the float
switch(4) through the float switch locking device(3).
3
TWP 4036 E / TWP 7536 E
4
3
TWP 9000 ES / TWP 11000 ES
4
The float switch locking device of the TWP9000ES and
TWP11000ES models is also equipped with a height
adjustment. In order to adjust the height, actuate the lateral
lever and push the locking device to the desired height.