E.P.HTF

E.P.HTF Three-phase Complete Solution (380-415V / 50Hz)

4” complete solution made of ZDS technopolimer hydraulic part, ZDS Master 3 control panel, three-phase encapsulated water-cooled Franklin motor and supply cable (different lengths available). The E.P.HTF Complete Solutions, manufactured to ISO 9001 standards, are available up to the maximum delivery of 6.000 l/h and 150m head. The advanced technology and settings of ZDS Master 3 control panel guarantee the best accuracy of working in every voltage condition. ZDS Master 3 control panel is extremely precise since it is set according to technical data of the selected hydraulic and motor. ZDS Master 3 control panel is ready to use and protects the pump against abnormalities in the installations and against many other possible faults. The E.P.HTF Complete Solutions are designed to be used in applications for lifting, distribution, and pressurisation in civil and industrial water systems, garden irrigation systems, filling of pressure vessels and tanks, fire-fighting systems and washing systems, drainage systems, fountains supply.

 

ZDS Master 3 features

  • Periodic unlock of the impellers
  • Three galvanic isolation inputs for level probes with adjustable delay time 0-60min
  • Three inputs for floats or pressure switch
  • Alarm output relay with changeover contact N.O. / N.C. (250V~ 5A max, resistive load)
  • Alarm signal for dry running and stop level or pressure
  • Pumps control through maximum level or maximum pressure alarm input

 

 

 

 

 

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  • kW: 0,37 - 1,1
  • Voltage range: 380-415V / 50Hz
  • Voltage tolerance 50Hz from nominal: +6% / -10% Un
  • Degree of protection: IP 68
  • Maximum quantity of suspended sand: 120 g/m³
  • Insulation: B
  • Rated ambient temperature: max 30° C
  • Cooling flow: min 8 cm/sec
  • Maximum starts/h: 20, equally distributed
  • Mounting: vertical/horizontal, shaft upwards
  • Maximum delivery (Q): 6.000 l/h
  • Maximum head (H): 150 m
  • Maximum immersion depth: 150 m
  • Outlet diameter: 1" ¼ G-F
  • Allowed range of water pH: 6,4 - 8,0

Automatic protections

Dry-running protection

Dry-running protection

The E.P.HTF Complete Solution is completely protected against lack of water in the well or in the tank. In case of dry running the ZDS Master 3 control panel stops the pump and a light starts flashing to inform the user that there is no more water in the well.

Overload protection

Overload protection

The E.P.HTF Complete Solution is completely protected against overload. In case the pump is partially or totally blocked, the ZDS Master 3 control panel stops the pump and a light starts flashing to inform the user.

Protection against low/high voltage

Protection against low/high voltage

The E.P.HTF Complete Solution is protected against low or high voltage, that can damage the motor. Low voltage can occur, for example, if the section of the power cable is not adequate considering the motor power and the distance between the plug and the pump itself; or if a generator is faulty or undersized for the pump. High voltage can occur with unstable supply network or with a faulty generator. To avoid potential damages, the Master 3 control panel restarts the pump when the correct voltage is restored.

Protection against too frequent start&stops

Protection against too frequent start&stops

In case of leaks in the piping system (also when the pressure tank is exhausted or its membrane is defective, or when there is a defective pressure switch) and too frequent starts and stops (i.e. if the tank is too small for the system), ZDS Master 3 control panel automatically stops the E.P.HTF Complete Solution and a light starts flashing to inform the user.

Protection against electrical abnormalities

Protection against electrical abnormalities

Any operation in the electrical circuit, the starting of different motors connected to the same network at the same time, possible surges in the network or an inadequate power generator, could modify the power supply damaging the pump. ZDS Master 3 control panel protects the E.P.HTF Complete Solution against voltage peaks caused by potential electrical abnormalities in the supply network .

Phase-loss protection

Phase-loss protection

The E.P.HTF Complete Solution is protected against phase-loss (caused by a brake of a fuse), as it protects the motor from damaging.

Phase imbalance

Phase imbalance

*Available on request.

Model performance

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Information on a proper installation

  • The correct pump must be selected considering the delivery pressure and the characteristics of the plant.
  • During installation of a submersible pump, it is necessary to verify if the power supply voltage is correct.
  • The correct pump operation is guaranteed when the power cable section is correctly selected, considering the motor power and the distance between the pump and the plug itself.
  • If you are using a generator with an internal combustion engine, it is necessary that the generator’ s power measured in kW (in continuous delivery) is three times the rated power in kW of the submersible pump.
  • To guarantee automatic operation mode (the pump starts and stops when open and close the tap) it is necessary to connect a pressure switch and a pressure tank of the correct size, if the plant is not already provided with them.
  • We recommend to install a proper cooling jacket in installations bigger than 10 cm, to guarantee the correct motor cooling flow.
  • The maximum quantity of sand allowed in the pumped water is 120g/m³.

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