P.HTH

PTH three-phase Heating Solution (380-415V / 50Hz)

4" Complete solution made by technopolimer ZDS hydraulic part, with high efficiency design, assembled to a new improved three-phase Franklin motor, especially designed for heat pump application.

This motor achieves between 5 to 7% points higher efficiency than standard sumbersible motors of the same power rating. This special and unique combination of products offers low power consuption and high efficiency, and represents the best system for heating applications.

The P.HTH Complete Solutions are manufactured to ISO 9001 standards.

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  • kW: 0,25
  • 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): 4.200 l/h
  • Maximum head (H): 50 m
  • Maximum immersion depth: 50 m
  • Outlet diameter: 1" ¼ G-F
  • Allowed range of water pH: 6,4 - 8,0
  • Protection requirements: For these Complete Solutions an overload protection and a motor start and run control unit, must be installed according to EN 60947-4-1 trip time < 10 sec. at 5 x IN.

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 the 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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