TROTEC TDP DS Electronic Pressure Switch Instruction Manual

TDP DS / TDP DSA

ORIGINAL INSTRUCTIONS
PRESSURE SWITCH

Notes regarding the instructions

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.

Follow the manual
Information marked with this symbol indicates that the instructions must be observed.

You can download the current version of the instructions and the EU declaration of conformity via the following link:

TDP DS
| TDP DSA

---|---
https://hub.trotec.com/?id=44133| 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.

General safety

• 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.

• 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 30 mA 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 mains connection must correspond to the specifications in the Technical annex.

• Insert the mains plug into a properly fused mains socket.

• Do not under any circumstances use the device if you detect damages on the mains plug or power cable.
  If the power cable 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 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 devicespecific 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.

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.
Foreseeable misuse 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.
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.

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 instructions, 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!
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.

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.

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. 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

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 3 l/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 15 m underneath the highest-level consumer.
The water temperature must not exceed 60 °C.
The device may be used in facilities with up to 10 bar 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 TDP DS has open cable ends, the device TDP DSA is equipped with a plug socket.

Device depiction
TDP DS

TDP DSA

Rear view TDP DS and TDP DSA

restarts the device after an error message
7| LED Alarm
is illuminated in red in case of a fault.
8| LED Pump On
is illuminated in yellow when the pump is switched on.
9| LED Power On
is illuminated in green when the device is switched on.
10| Pressure gauge
indicates the current pressure
11| Switchboard

Transport and storage

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:

• Store the device in a dry location and protected from frost and heat.
• Store the device in a location where it is protected from dust and direct sunlight.
• If required, use a cover to protect the device from invasive dust.
• 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.

Assembly and installation

Scope of delivery

• 1 x Pressure switch
• 1 x 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 15 m underneath the highest-level consumer.
• The water temperature must not exceed 60 °C.
• The device may be used in facilities with up to 10 bar water pressure. You can install a pressure reducer between pump and pressure switch if the pressure of the pump exceeds 10 bar.
• 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 20 m requires a pump pressure of 2 bar.
To guarantee a failure-free operation, the pressure at which the pressure switch switches the pump on should be 0.2 bar above the hydrostatic pressure. The pump should be able to build up a pressure that is at least 0.8 bar above the switch-on pressure of the pressure switch.

height difference| switch-on pressure of pressure switch| required minimum working pressure of pump
---|---|---
13 m| 1.5 bar| 2.3 bar
17 m| 1.9 bar| 2.7 bar
20 m| 2.2 bar| 3 bar
23 m| 2.5 bar| 3.3 bar

On the device, the switch-on pressure of the pressure switch can be adjusted to a value between 1.5 bar and 2.5 bar. For more detailed information please refer to the chapter Operation.

Setting the switch-on pressure

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 1.5 bar.
   ⇒ Every 360° turn decreases the pressure for approx.
   0.2 bar.

2. Turn the pressure setting screw (4) towards the plus sign to increase the switch-on pressure. The maximum switchon pressure (screw all the way to the plus sign) is 2.5 bar.
   ⇒Every 360° turn increases the pressure for approx. 0.2 bar.
   

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 2.5 times towards the minus sign.
  – The pressure is reduced by approx. 0.5 bar.

Shutdown
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

Warning of electrical voltage
Do not touch the mains plug with wet or damp hands.

• Switch the device off.
• 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).

• 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 3 l/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.

The 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

phase connection
– max. 4000 W (400 V/AC, 10(6) A) for three-phase connection
Power input| 1100 W
Power consumption| z 1,1 kW with circuit breaker
Max. inlet pressure| 1 MPa
Integrated pressure gauge| yes
Max. temperature of pumping medium| 60 °C / 140 °F
Pumping medium| clean fresh water
Start-up pressure| 1.5 to 2.5 bar
Max. pressure| 10 bar
Connection thread| 1″ external thread
Length of power cable| 1 m with plug for connection to the mains socket
Pump connection length| 0.45 m
– TDP DS: open cable ends – TDP DSA: plug socket
Dimensions
(length x width x height)| 125 x 153 x 165 mm
Weight| 1 kg

Note
If your pump is equipped with more than 1.1 kW capacity, you should insert a standard power protection or an appropriate power relay. With a 380 V power protection, even 380/400 V three-phase pumps are controllable.

Circuit diagram for TDP DS with single-phase pump connection, connected load <1.1 kW

Circuit diagram for TDP DS with single-phase pump connection, connected load >1.1 kW

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.

Disposal

Always dispose of packing materials in an environmentally friendly manner and in accordance with the applicable local disposal regulations.
The icon with the crossed-out waste bin on waste electrical or electronic equipment is taken from Directive 2012/19/EU. It states that this device 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. You can also find out about other return options that apply for many EU countries on the website https://hub.trotec.com/?id=45090. Otherwise, please contact an official recycling centre for electronic and electrical equipment authorised for your country. 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.

Only for United Kingdom
According to Waste Electrical and Electronic Equipment Regulations 2013 (SI 2013/3113) (as amended) devices that are no longer usable must be collected separately and disposed of
in an environmentally friendly manner.

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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