Knürr DCD

Category: Facilities,Enclosures and Racks

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The Knürr DCD is an air-to-water heat exchanger that is integrated into the rear door of a server cabinet. The heat exchanger serves to absorb heat loads from service racks up to 50 kW. The Knürr DCD can be configured with Knurr DCM cabinets or can be installed in other supplier cabinets. The design of the heat exchanger allows for an increase in the temperature of the chilled water.

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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 allows an increase in the chilled water temperature.

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Depth: 120mm (with 150mm hinges).
Width: 600mm, 700mm, 800mm (DCD50 only available in 800mm).
Cooling capacity: up to 50kW (suitable only for sensitive cooling).
Air pressure loss: 35Pa (at 4,900m³/Ω) for the DCD 35 / 30Pa (at 6500m³/Ω) for the DCD50.
Water pressure loss: 54kPa (at 5m³/Ω) for the DCD35 / 68kPa (at 7.2kW) for the DCD50.
Cold water supply: 15°C.
Cold water return: 21°C.
Server air supply temperature: 25°C @35kW for DCD35; @50kW for DCD50.
Cold water volume flow: 5m³/Ω at 35kW / 7.2m³/Ω at 50kW.
Water connection:1″ female thread from below (optional from above).
Drainage: 5/8“ (Note: Not for dewatering the installation area!).
Absolute humidity / room air: max. 8g water per 1 kg air (others on request).
Cooled point temperature: maximum 10.5°C.
Material: Steel sheet.
Heat exchanger: Copper pipes with aluminum sheet.
Color/Color code: X: 8 = RAL 7021 (dark grey) / 1 = RAL 7035 (light grey).

BENEFITS

Improved PUE.
It is recommended to use it in a cool room.
Low pressure loss.
Without fans.
Increased cold water supply temperature.
Reliable operation guaranteed by water hinges.

knuerr-dcd-brochure-english

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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 lamellae.
Color/color code: X: 8 = RAL 7021 (black grey) / 1 = RAL 7035 (light grey).

BENEFITS

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.

knuerr-dcd-brochure-english

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Επιπλέον πληροφορίες

Manufacturer	Knürr
Rack Height in U	42U, 47U
Rack Colors	Light Grey (RAL 7035), Dark Grey (RAL 7021)