Knürr DCD

Knürr DCD is an air-water heat exchanger that is integrated into the rear door of a server cabinet. The heat exchanger serves to absorb heat loads from server racks of up to 50 kW. Knürr DCD is configurable with Knürr DCM cabinets or can be mounted to other vendor cabinets. The design of the heat exchanger permits an increase in the chilled water temperature.



  • Depth: 120mm (incl. hinges 150mm).
  • Width: 600mm, 700mm, 800mm (DCD50 only available for 800mm).
  • Cooling capacity: up to 50kW (suited for sensitive cooling only).
  • Air pressure loss: 35Pa (at 4,900m³/h) for DCD 35 / 30Pa (at 6500m³/h) for DCD50.
  • Water pressure loss: 54kPa (at 5m³/h) for DCD35 / 68kPa (at 7.2kW) for DCD50.
  • Chilled water supply: 15°C.
  • Chilled water return: 21°C.
  • Server supply air temperature: 25°C @35kW for DCD35; @50kW for DCD50.
  • Chilled water volume flow: 5m³/h at 35kW / 7.2m³/h at 50kW.
  • Water connection: 1“ female thread from below (optionally from above).
  • Condensate drain: 5/8“ (Note: Not for dehumidifying the installation area!).
  • Absolute humidity/ room air: max. 8g water per 1 kg of air (others on request).
  • Dew-point temperature: max. 10.5°C.
  • Material: Sheet steel.
  • Heat exchanger: Copper piping with aluminum lamellas.
  • Color/color code: X: 8 = RAL 7021 (black gray) / 1 = RAL 7035 (light gray).



  • Improved PUE.
  • Suggested to be used in a cold-room concept.
  • Low pressure loss.
  • No fans.
  • Increased chilled water supply temperature.
  • Reliable operation guaranteed by water-conducting hinges.



Brief Information