With Daikin modulating valve, low operating cost and high flexibility with infinite capacity control can be achieved. Also, with the careful design that aimed to optimise energy efficiency and high reliability, this product is the ideal choice for indoor installation or retrofit projects

Dr. Amin Dadgari - Technical Manager

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Daikin screw heat pump EWWS-J- is a water to water heat pump reversible on water side standing out for its compactness and reliability.


  • The cooling and heating capacity range between 115– 272 kW and 140-338 KW respectively
  • EER up to 3.84
  • Daikin heat pump design using Semi-hermetic single-screw compressor
  • R513A refrigerant


  • Compact design to achieve the smallest footprint that is an ideal solution to allow easy transport, indoor access and installation
  • Application flexibility not limited to traditional use of heat pump in comfort cooling and heating but extend to an industrial process, brine water, ice storage and high-temperature applications (up to 75°C).
  • An extensive list of options as standard including Wye-Delta compressor starter, double set point, phase monitoring, discharge and suction line shut-off valve, master/slave functionality and many more
  • Stacked installation of two units that can operate stand-alone or with Master-Slave control
  • Optional high-temperature kit, soundproof cabinet, Energy meters, Daikin onsite modem with antenna and many more


  • Compressor integrated with slide-manage for infinite capacity modulation between 100% to 25% and optional soundproof system
  • Evaporator; Stainless-steel plate type heat exchanger with closed-cell insulation and water connection provided with Victaulic kit as standard
  • Optional Condenser tubes made of Cu-Ni 90-10 material and Cu-Ni 90-10 tube sheets cladding. Epoxy ceramic coating of water headers and sacrificial anode
  • Condenser with four passes waterside design allowing to run the unit with higher condenser water ΔT 20°C

Certified in accordance with the Eurovent Certification Program.
Certified units may be found in the Eurovent website at www.eurovent-certification.com

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Get in touch with details about the requirements of you project, indicating operating conditions, plus options, controls you are interested in, and any other relevant information. This will allow us to get back to you in no time with the best offer for your needs.