EN
7
pressure switch TDP DS
Setting the switch-on pressure
Warning
Setting the switch-on pressure may only be carried out
by specialist companies for water installation.
When the switch-on pressure is set too low, the pressure cannot
drop and the pump does not start operating. The pressure
control is illuminated in green. Then the pressure setting screw
has to be turned towards the "+" sign. Every 360° turn
increases the water level for approx. 2 m (0.2 bar).
When the switch-on pressure is set too high, a protection
against a low water level sets in. The pump cannot start
operating. The pressure control is illuminated in green and red.
Then the pressure setting screw has to be turned towards the
"-" sign. Every 360° turn decreases the water level for approx.
2 m (0.2 bar).
When the switch-on pressure is close to the maximum pressure
of the pump, the pump frequently starts operating. In this case it
cannot be stopped. The pressure control is illuminated in green
and red. Then the pressure setting screw has to be turned
2.5 times towards the "-" sign. The water level decreases for
approx. 5 m (0.5 bar).
Assembly and installation
Warning of electrical voltage
Do not touch the mains plug with wet or damp hands.
Note
Never take the electronic card out of the control box.
The indications on the terminal block show you how to
set up the right connection. A false connection can
result in damage to the device.
1. For this reason, you have to disconnect the pump from the
mains voltage. Switch the device off and remove the mains
plug from the mains socket.
2. Open a consumer at the end of the pressure side, e.g.
water tap or garden sprayer so that the remaining pressure
is released.
Note
Do not mount the pressure switch on the suction side
of the pump!
3. Instead, install the device between the pump and the
consumer side. Please note:
- If necessary, use suitable connectors and hoses/tubes.
- Check the polarity is correct.
- Connect the water inlet of the device with the pump and
the water outlet with the consumer side.
- The device comes with 1" external thread: The diameter
of the connected lines may not be smaller.
4. If the device is not equipped with a mains plug, have the
power cable for the pump installed by a professional
electrician. Refer to the chapter Circuit diagram where you
can see circuit diagrams for a correct installation.
Note
The power supply of the pump has to be provided by
the pressure switch. Do not connect the pump to an
installed mains socket!
Note
To avoid intrusion of water into the switchboard and
consequent damage, tighten the 4 screws on the
switchboard and both nuts on the power cable (1) and
the E-connection pump (2) so that the cables are
attached.
Info
It is helpful to fill the suction hose with water to
support the suction procedure of the pump. To do so,
the end of the suction hose has to be provided with a
backflow preventer! Please observe the instructions of
the pump.
max. 13 - 23 m
1,5 - 2,5 bar
p
min
= 2,3 - 3,3 bar
Info
Height difference and minimum working pressure p
min
depend on the set switch-on pressure of the pressure
switch (see chapter Required pump pressure).
