The DWSC range offers an outstanding full and part load efficiency while providing the flexibility for large applications

Dr. A. Dadgari - Product Development Engineer


Daikin Centrifugal Chiller DWSC is a water cooled centrifugal chiller solution offering excellent full and part load performance and flexibility.

  • The new series offers a wide choice of cooling capacities – from 1050kW (300RT) up to 4500kW (1250RT) with both R-134A and R-513A refrigerants, and from 790kW (225RT) up to 3200kW (910RT) with R-1234ze at nominal AHRI conditions.
  • Single compressor, single stage type
  • Unique Daikin movable discharge geometry
  • R-513A, R-134a or R-1234ze refrigerants
  • Outstanding full load / part load efficiency
  • Unloading down to 10% without hot gas bypass
  • Quiet operation using unique liquid injection and as chiller unloads
  • Glycol operation



  • Positive pressure system design eliminating air and moisture contamination providing sustainable performance and trouble-free ownership
  • Daikin precision engineered gear driven design allows for lighter components, less vibration and ability to select gear ratio to provide optimum impeller speed specific to your application
  • A stand-alone lubrication system featuring an electric oil pump supplying the lubrication at controlled temperature and pressure to all bearing surfaces, and to act as the source of hydraulic pressure for capacity control system
  • Quiet operation using the unique liquid injection by taking a small amount of liquid refrigerant injected into the compressor discharge area where the droplet absorbs sound energy and reduces the compressors overall sound level
  • Quieter operation sound level as chiller unloads using Daikin compressor design
  • Optional Variable Frequency Drive (VFD) technology achieves an astonishing part load efficiency – AHRI certified IPLE of 10.3 (0.34 kW per ton) 
  • 20% more performance achieved within the same footprint as comparative competitor products 


  • A separately driven electric oil pump
  • Marine water boxes providing tube access for inspection and cleaning without dismantling water piping
  • ANSI raised face flanges on either the evaporator or condenser (Victaulic connections as standard)
  • Water side high pressure water system up to 300 PSI
  • Refrigerant leak detector
  • Sound attenuation package
Daikin AHRI Water Cooled certificated

Certified in accordance with the AHRI Water-Cooled Water-Chilling Packages Certification Program, which is based on AHRI Standard 550/590 (I-P) and AHRI Standard 551/591 (SI). Certified units may be found in the AHRI Directory at www.ahridirectory.org

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Step 1 of 4

  • Your cooling target

  • Evaporator

  • Condenser