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TDP DS / TDP DSA
EN
OPERATING MANUAL
PRESSURE SWITCH
TRT-BA-TDPDS/TDPDSA-TC2019-61-004-EN
Page 2
Table of contents
Notes regarding the operating manual.................................2
Safety.....................................................................................2
You can download the current version of the operating manual
and the EU declaration of conformity via the following link:
Information about the device................................................4
Transport and storage...........................................................6
Assembly and installation.....................................................6
Operation ...............................................................................8
Errors and faults....................................................................9
Maintenance........................................................................10
Technical annex...................................................................10
Disposal ...............................................................................11
Notes regarding the operating manual
Symbols
Warning of electrical voltage
This symbol indicates dangers to the life and health of
persons due to electrical voltage.
Warning
This signal word indicates a hazard with an average
risk level which, if not avoided, can result in serious
injury or death.
Caution
This signal word indicates a hazard with a low risk
level which, if not avoided, can result in minor or
moderate injury.
Note
This signal word indicates important information (e.g.
material damage), but does not indicate hazards.
Info
Information marked with this symbol helps you to carry
out your tasks quickly and safely.
TDP DS
https://hub.trotec.com/?id=44133
TDP DSA
https://hub.trotec.com/?id=44767
Safety
Read this manual carefully before starting or using the
device. Always store the manual in the immediate vicinity
of the device or its site of use!
Warning
Read all safety warnings and all instructions.
Failure to follow the warnings and instructions may
result in electric shock, fire and/ or serious injury.
Save all warnings and instructions for future
reference.
This appliance can be used by children aged
from 8years and above and persons with reduced
physical, sensory or mental capabilities or lack of
experience and knowledge if they have been given
supervision or instruction concerning use of the
appliance in a safe way and understand the hazards
involved.
Children shall not play with the appliance. Cleaning and
user maintenance shall not be made by children
without supervision.
General safety
Follow the manual
Information marked with this symbol indicates that the
operating manual must be observed.
•Do not use the device in potentially explosive rooms or
areas and do not install it there.
•Do not use the device in aggressive atmosphere.
•Check accessories and connection parts for possible
damage prior to every use of the device. Do not use any
defective devices or device parts.
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pressure switch TDP DS / TDP DSA
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•Before carrying out maintenance, care or repair work on
the device, remove the mains plug from the mains socket.
Hold onto the mains plug while doing so.
•Do not remove any safety signs, stickers or labels from the
device. Keep all safety signs, stickers and labels in legible
condition.
General safety warnings – Electrical safety
•The device is to be supplied with a rated residual current
of no more than 30mA by means of an RCD (Residual
Current protective Device).
•Ensure that all electric cables outside of the device are
protected from damage (e.g. caused by animals). Never
use the device if electric cables or the power connection
are damaged!
•The electrical connection must correspond to the
specifications in chapter Technical data.
•Insert the mains plug into a properly secured mains
socket.
•Do not under any circumstances use the device if you
detect damages on the mains plug or power cable.
If the supply cord is damaged, it must be replaced by the
manufacturer, its service agent or similarly qualified
persons in order to avoid a hazard.
Defective power cables pose a serious health risk!
•Should the connection line of the device be damaged, it
must be replaced by the manufacturer, his customer
service or similarly qualified personnel in order to avoid
hazards.
•Should there be a risk of flooding, install the plug
connections in a flood-proof area. There is a risk of
electric shock!
•Make sure that the mains voltage corresponds to the
specifications on the nameplate.
•Have all electrical installations carried out by an expert
according to the national regulations and the device-
specific requirements.
•Hold onto the mains plug while pulling the power cable out
of the mains socket.
•Protect the power supply cable against heat, oil and sharp
edges. Make sure that the power supply cable is not
crushed, kinked or subjected to other mechanical stresses.
•Only use splash-proof extension cables intended for
outdoor use whilst observing the device's power input.
Before using cable drums, always unroll the cable
completely. Check the cable for damage. The use of
extension cables which are not approved for outdoor use
can result in injuries due to electric shock.
•Before performing any work on the device, in case of leaks
in the water system, before taking work breaks or when
not in use, remove the mains plug from the mains socket.
General safety warnings – Personal safety
•Never insert any objects or limbs into the device.
•This appliance is not a toy! Keep away from children and
animals. Do not leave the device unattended during
operation.
Warning
Device-specific safety warnings for pressure
switches
•Before taking the device into operation, have the following
checked by an expert:
–Earthing, neutral conductor and RCD must be
functioning properly and correspond to the national
regulations,
–electrical plug connections must be protected from
moisture.
•Provide appropriate frost protection.
•Never operate the device in the rain. Keep the device away
from environmental influences such as wet conditions or
frost. In particular, keep the electrical connections dry and
make sure they are located in a flood-proof area.
•Do not use the device at freezing temperatures or
temperatures above 60°C.
•Do not use the device for drinking water supply, and do not
integrate it into the drinking water circuit. In addition,
please observe the local regulations of the water and
wastewater authorities.
Intended use
The device serves for switching a connected garden or deep
well pump on and off. It is used to pump rainwater or service
water into private areas (e.g. into the garden) in compliance
with the regulations specified in the technical data. It is installed
in the water line between a pump and one or more extraction
points. From there, it activates or deactivates the connected
pump depending on the present water pressure and the flow
rate volume.
Clean fresh water is permitted as pump water (e.g. rainwater
from a cistern or ground water from a private well). The
temperature of the pumped water must not exceed 60°C.
Improper use
The device is not suitable for the operation of irrigation systems
in business, industry or in public areas (e.g. park areas).
Using the device in swimming pools and the like is prohibited.
The device is not suitable for increasing the pressure of existing
water supply networks.
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pressure switch TDP DS / TDP DSA
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The device must not be used for aggressive, abrasive, caustic,
corrosive, combustible or explosive pumping media, e.g.:
•brine
•sandy water
•food
•cleaning agents
•fuels (e.g. petrol, diesel)
•oils
•greases
•petroleum
•nitro-cellulose thinner
•waste water from lavatories and urinal installations
The device must not be used at freezing temperatures.
Any unauthorised changes, modifications or alterations to the
device are forbidden.
Warning
Risk of suffocation!
Do not leave the packaging lying around. Children may
use it as a dangerous toy.
Note
If you store or transport the device improperly, the
device may be damaged.
Note the information regarding transport and storage of
the device.
Behaviour in the event of an emergency
1.In an emergency, disconnect the device from the mains
feed-in: Hold onto the mains plug while pulling the power
cable out of the mains socket.
2.Do not reconnect a defective device to the mains.
Information about the device
Personnel qualifications
People who use this device must:
•be aware of the dangers that occur when working with
electric devices in damp areas.
•have read and understood the operating manual, especially
the Safety chapter.
Setting the switch-on pressure may only be carried out by
specialist companies for water installation.
Electrically skilled person
Electrically skilled personnel must be able to read and
understand electric circuit diagrams, to put electrical systems
into service and to maintain them, to wire control cabinets, to
ensure the functionality of electrical components and to identify
possible hazards from electrical and electronic systems.
Residual risks
Warning of electrical voltage
Work on the electrical components must only be
carried out by an authorised specialist company!
Warning of electrical voltage
Before any work on the device, remove the mains plug
from the mains socket!
Hold onto the mains plug while pulling the power cable
out of the mains socket.
Warning
Dangers can occur at the device when it is used by
untrained people in an unprofessional or improper way!
Observe the personnel qualifications!
Warning
The device is not a toy and does not belong in the
hands of children.
Device description
In order to deliver service water for home and garden, the
pressure switch serves to control the pump.
The device is installed between a pump and one more
extraction points (e.g. a water tap or a garden sprayer). It
monitors the pressure in the water line. Should the pressure in
the water line drop below a predefined value, the device will
switch on the pump. To avoid the pressure dropping below the
value, the electrical supply of the pump has to be connected to
the pressure switch. The pressure switch recognises when the
pressure level is sufficient (e.g. because the water tap has been
closed), and switches the connected pump off.
The device also monitors the flow rate volume. Should the water
flow rate drop below a value of 3l/min (e.g. because the pump
runs dry), the device switches off the connected pump.
The restart button on the pressure switch is used for restarting
the connected pump manually (e.g. when the device switches
the pump off because the pump is running dry).
In addition, the device is equipped with a backflow preventer.
The pressure switch must be connected at maximally 15m
underneath the highest-level consumer.
The water temperature must not exceed 60°C.
The device may be used in facilities with up to 10bar water
pressure.
Moreover, the device is fitted with a pressure gauge.
The functioning of the two models is identical, they merely differ
in terms of their pump connection type. The device
open cable ends, the device
TDP DSA is equipped with a plug
socket.
TDP DS has
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pressure switch TDP DS / TDP DSA
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Device depiction
1
2
6
7
8
9
10
11
1
2
6
7
8
9
10
11
3
5
3
4
TDP DS
TDP DSA
Rear view TDP DS and TDP DSA
No.Designation/function
1Power cable
2Pump connection
3Connection for water outlet with 1"external thread
4Pressure setting screw
5Connection for water inlet with 1"external thread
6Button Reset
restarts the device after an error message
7LED Alarm
is illuminated in red in case of a fault.
8LED Pump On
is illuminated in yellow when the pump is switched on.
9LED Power On
is illuminated in green when the device is switched on.
10Pressure gauge
indicates the current pressure
11Switchboard
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pressure switch TDP DS / TDP DSA
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Transport and storage
Assembly and installation
Note
If you store or transport the device improperly, the
device may be damaged.
Note the information regarding transport and storage of
the device.
Transport
Before transporting the device, observe the following:
•Hold onto the mains plug while pulling the power cable out
of the mains socket.
•Do not carry the device by holding it at the power cable or
hose.
Storage
When the device is not being used, observe the following
storage conditions:
•dry and protected from frost and heat
•Protected from dust and direct sunlight
•with a cover to protect it from invasive dust, if necessary
•Put the protective caps on the water connections to protect
the inside of the device against dust and dirt.
If you do not use the device for an extended period of time, it
must be cleaned thoroughly after its last application and before
recommissioning. Deposits and residues could lead to start-up
difficulties.
For restart, please proceed according to the Start-up chapter.
Scope of delivery
•1x Pressure switch
•1x Manual
Unpacking the device
1.Open the cardboard box and take the device out.
2.Completely remove the packaging.
3.Fully unwind the power cable. Make sure that the power
cable is not damaged and that you do not damage it during
unwinding.
Start-up
Positioning
The device is installed between a pump and one more
extraction points (e.g. a water tap or a garden sprayer). The
following conditions shall be applied:
•The pressure switch must be connected at maximally 15m
underneath the highest-level consumer.
•The water temperature must not exceed 60°C.
•The device may be used in facilities with up to 10bar
water pressure. You can install a pressure reducer
between pump and pressure switch if the pressure of the
pump exceeds 10bar.
•The site of installation is protected from weather exposure
and wet conditions.
Required pump pressure
The required operating pressure of the pump to be connected
depends on the height difference between pump and highest-
level consumer (hydrostatic pressure). For instance, a height
difference of 20m requires a pump pressure of 2bar. To
guarantee a failure-free operation, the pressure at which the
pressure switch switches the pump on should be 0.2bar above
the hydrostatic pressure. The pump should be able to build up a
pressure that is at least 0.8bar above the switch-on pressure of
the pressure switch.
height differenceswitch-on
pressure of
pressure switch
required minimum
working pressure
of pump
13m1.5 bar2.3 bar
17m1.9 bar2.7 bar
20m2.2 bar3 bar
23m2.5 bar3.3 bar
On the device, the switch-on pressure of the pressure switch
can be adjusted to a value between 1.5bar and 2.5bar. For
more detailed information please refer to the chapter Operation.
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pressure switch TDP DS / TDP DSA
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Setting the switch-on pressure
ma
x
.
1
3
-
2
3
m
1,5 - 2,5 bar
p
min
= 2,3 - 3,3 bar
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. 2m (0.2bar).
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. 2m (0.2bar).
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 2.5times towards the "-"sign. The water level
decreases for approx. 5m (0.5bar).
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.
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.For model
TDP DS, have the pump connection carried out
by a professional electrician. Refer to the chapter Circuit
diagram where you can see circuit diagrams for a correct
installation.
For model
TDP DSA, connect the mains plug of the pump
with the pump connection of the pressure switch.
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, firmly tighten the 4screws on the
switchboard and both nuts on the power cable(1) and
the pump connection(2) to fix the cables.
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.
EN7
Note
Do not mount the pressure switch on the suction side
of the pump!
pressure switch TDP DS / TDP DSA
Page 8
Info
Height difference and minimum working pressure p
depend on the set switch-on pressure of the pressure
switch (see chapter Required pump pressure).
Operation
Switching the device on
1.Open a consumer at the end of the pressure side, e.g.
water tap or garden sprayer so that any remaining air in
the line is able to escape.
2.Connect the mains plug of the pressure switch with a
safety socket.
ð The LED Power On(9) is illuminated.
ð The pressure switch activates the pump.
ð After approx. 20 to 25seconds, the pump has built up
the operating pressure. While the pump is in operation,
the LED Pump On(8) is illuminated.
3.Close the tap on the pressure side when the desired
amount of water has been supplied and the air was able to
escape.
ð The pump continues to operate a little longer, until the
operating pressure that is set in the pressure switch is
reached.
ð If the pressure switch detects that the flow rate is too
low, it automatically switches off the pump. This serves
as a protection against the pump running dry. In this
case, the LED Alarm(7) is illuminated. If so, check
whether the suction hose connected to the pump is
correctly positioned, whether a shut-off valve in the
suction hose is accidentally closed or whether a filter is
contaminated.
Info
min
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.
If there is no more air in distribution network, opening the water
tap causes the water pressure to drop. This is detected by the
pressure switch. It will automatically activate the garden pump
for as long as the water tap is opened.
After closing the water tap, the pressure in the distribution
network increases. Then the pressure switch switches off after
a few seconds.
Reset
If the pump runs dry and the water flow rate falls below the set
minimum value, the pressure switch switches off the pump for
reasons of safety. The LED Alarm(7) is illuminated. Please
proceed as follows to restart the pressure switch and the pump:
1.Stop the pump running dry by filling water into the suction
hose (if possible) or into the pump. For this purpose, many
pumps are equipped with a water filler neck. If necessary,
find out more in the instructions of your pump.
2.When you eliminated the dry run of the pump, press the
button Reset(6) at the pressure switch.
ð The LED Alarm(7) goes out.
ð The pressure switch activates the pump.
ð The LED Pump On(8) is illuminated for as long as the
pump is in operation.
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pressure switch TDP DS / TDP DSA
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Setting the switch-on pressure
4
Shutdown
Warning
Setting the switch-on pressure may only be carried out
by specialist companies for water installation.
The device is equipped with a pressure setting screw(4). The
setting screw is used to set the pressure value at which the
device switches on the connected pump. For more detailed
information about the required pump pressure please refer to
the start-up chapter.
Please proceed as follows to set the switch-on pressure:
1.Turn the pressure setting screw(4) towards the minus sign
to reduce the switch-on pressure. The minimum switch-on
pressure (screw all the way to the minus sign) is 1.5bar.
ð Every 360° turn decreases the pressure for approx.
0.2bar.
2.Turn the pressure setting screw(4) towards the plus sign
to increase the switch-on pressure. The maximum switch-
on pressure (screw all the way to the plus sign) is 2.5bar.
ð Every 360° turn increases the pressure for approx.
0.2bar.
Warning of electrical voltage
Do not touch the mains plug with wet or damp hands.
If you like to disconnect the pressure switch from the water
network, (e.g. for cleaning, maintenance or storing during
winter), proceed as follows:
1.Disconnect the pressure switch from the power supply by
plugging the mains plug out of the mains socket.
2.Afterwards, disconnect the power supply of the pump from
the pressure switch.
3.Open a tap that is connected to the pressure switch to
release any remaining water pressure.
4.Disconnect the connection on the water outlet of the
pressure switch. Afterwards, disconnect the connection on
the water inlet of the pressure switch.
5.Empty the pressure switch (and your pump as well).
Carefully dry pressure switch and power cable.
Note
During winter, store pressure switch (and your pump)
in a dry room and protected against frost.
Errors and faults
Note for setting the switch-on pressure:
•The switch-on pressure is set too low:
–When the tap is opened, the pump does not start
operating.
–The LED Power On(9) is illuminated in green.
–Turn pressure setting screw towards the plus sign.
•The switch-on pressure is set too high:
–The dry-run protection is activated and the pump does
not start operating.
–The LEDs Power On(9) and Pump On(8) are illuminated
(green/ yellow).
–Turn pressure setting screw towards the minus sign.
•Switch-on pressure is set close to the maximum pressure
of the pump:
–The pump operates continuously or frequently switches
on or off.
–The LEDs Power On(9), Pump On(8) and Alarm(7) are
illuminated (green/ yellow/ red).
–Turn pressure setting screw 2.5times towards the
minus sign.
–The pressure is reduced by approx. 0.5bar.
Warning of electrical voltage
Do not touch the mains plug with wet or damp hands.
•Switch off the device.
•Hold onto the mains plug while pulling the power cable out
of the mains socket.
The device has been checked for proper functioning several
times during production. If malfunctions occur nonetheless,
check the device according to the following list.
The connected pump does not start operating:
•Check the power connection.
•Check the power cable and mains plug for damage.
•Check the on-site fusing.
•Check the necessary initial pressure of the pump.
•Check whether enough water is available and make sure
the water can be sucked by the pump without any
problems.
•Check whether the LED Alarm(7) is illuminated. If so,
press the Reset(6) button. If the pump is still not starting
to operate, make sure that the water in the water lines can
flow freely. If necessary, fill the pump with water (dry run).
If this does not help, check the pump for its correct
function and check whether the pump capacity is sufficient
(see Start-up chapter).
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pressure switch TDP DS / TDP DSA
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•Check whether the power supply of the pump is switched
on. The LED Pump On(8) on the pressure switch should be
illuminated. If necessary, have the electrical connection of
the pump checked by a specialist company (see circuit
diagram).
•Check whether the pressure has to be readjusted via the
pressure setting screw (-/+).
The pump runs permanently and does not stop operating
•Possible leakage in the system that exceeds the minimal
flow rate of 3l/min at which the pressure switch switches
off the pump. Check the distribution network for leakage
and remove any existing leakages.
The connected pump starts to operate several times and
stops again
•Check the water line for leakages and remove any existing
leakages.
Your device still does not operate correctly after these
checks?
Please contact the customer service. If necessary, bring the
device to an authorised specialist electrical company or to
Trotec for repair.
Maintenance
Activities required before starting maintenance
Warning of electrical voltage
Do not touch the mains plug with wet or damp hands.
•Hold onto the mains plug while pulling the power cable out
of the mains socket.
Notes on maintenance
Inside the device, there are no parts that need to be maintained
or lubricated by the user.
Cleaning
•Clean the device with a soft, damp and lint-free cloth.
Protect electrical components from moisture. Do not use
any aggressive cleaning agents such as cleaning sprays,
solvents, alcohol-based or abrasive cleaners to dampen
the cloth.
Technical annex
Technical data
ParameterValue
ModelPressure switches TDP DS/ TDP
DSA
min flow rate3l/min
Max. delivery head23m at 1.5bar
Power supply220-240V~ 50/60Hz
Type of protectionIP54
Maximum connected load for
pump
Power input1100W
Power consumption≥ 1,1kW with circuit breaker
Max. inlet pressure1MPa
Integrated pressure gaugeyes
Max. temperature of
pumping medium
Pumping mediumclean fresh water
Start-up pressure1.5 to 2.5bar
Max. pressure10 bar
Connection thread1"external thread
Length of power cable1m with plug for connection to
Pump connection length0.45m
Dimensions
(lengthx widthx height)
Weight1kg
Note
If your pump is equipped with more than 1.1kW
capacity, you should insert a standard power protection
or an appropriate power relay. With a 380V power
protection, even 380/400V three-phase pumps are
controllable.
- max.2300W
(230V/AC, 10(6)A)
for single-phase connection
-max.4000W
(400V/AC, 10(6)A)
for three-phase connection
60°C/ 140°F
the mains socket
TDP DS: open cable ends
-
-
TDP DSA: plug socket
125 x 153 x 165mm
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pressure switch TDP DS / TDP DSA
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Circuit diagram for
TDP DS with single-phase pump
connection, connected load<1.1kW
Circuit diagram for TDP DS with three-phase pump
connection
A switching device must be interposed when three-phase
pumps are used. The chosen capacity for the protection has to
be compatible with the pump.
Circuit diagram for TDP DS with single-phase pump
connection, connected load >1.1kW
Disposal
The icon with the crossed-out waste bin on waste
electrical or electronic equipment stipulates that this equipment
must not be disposed of with the household waste at the end of
its life. You will find collection points for free return of waste
electrical and electronic equipment in your vicinity. The
addresses can be obtained from your municipality or local
administration. For further return options provided by us please
refer to our website https://de.trotec.com/shop/.
The separate collection of waste electrical and electronic
equipment aims to enable the re-use, recycling and other forms
of recovery of waste equipment as well as to prevent negative
effects for the environment and human health caused by the
disposal of hazardous substances potentially contained in the
equipment.
EN11
pressure switch TDP DS / TDP DSA
Page 12
Trotec GmbH
Grebbener Str. 7
D-52525 Heinsberg
+49 2452 962-400
+49 2452 962-200
info@trotec.com
www.trotec.com
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