Liebert® DCD
Liebert® 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. Liebert® DCD is configurable with Liebert® DCM cabinets or can be mounted to other vendor cabinets. The design of the heat exchanger permits an increase in the chilled water temperature.
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Liebert® DCD
Liebert® 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. Liebert® DCD is configurable with Liebert® DCM cabinets or can be mounted to other vendor cabinets. The design of the heat exchanger permits an increase in the chilled water temperature.
- Banking
- Financial and Insurance
- Data Center/Colocation/Hosting
- Education
- Government
- Healthcare
- Telecom
Specifications
Cooling is effected when the server exhaust air flows through the heat exchanger in the rear door of the server cabinet. Thereby, the cooling air is moved through the heat exchanger by the server fans. Thus, Liebert® DCD supports the cold room concept in which the warm exhaust air from servers is always led to a recooling device where it reduced to the temperature level of the server supply air. The supply air for cooling flows freely through the installation area. By omitting the otherwise necessary fans for room cooling, the cooling principle of Liebert® DCD is particularly energy-efficient. Furthermore, the design of the air-water heat exchanger permits in increase in the chilled water supply temperature, which also adds to an improved energy balance and large shares of free or adiabatic cooling. All this yields a significantly improved PUE (Power Usage Effectiveness). Due to low hydraulic pressure loss on the air side, the system suggests itself to suit a wide range of server types. Prior to using Liebert® DCD, the system and servers must be checked whether they match hydraulically. In particular, it must be made sure that the pressure increase of the server fans is sufficient for the flow resistance of Liebert® DCD. The low pressure loss on the water side minimizes the energy consumed by the pumps in the chill-water net. Liebert® DCD is designed exclusively for sensible cooling, any dehumidification of the room by means of Liebert® DCD should be avoided. The inclusive condensed water collection pan with a condensate drain is designed for short-time dewing only. Liebert® DCD is especially suited for use in Liebert® DCM server cabinets. This guarantees an optimal mechanical interface and appearance of the system in the Liebert® design. The swivel joint allow particularly simple operation and safe assembly. The door can be opened up to an angle of 160°. Adaptor for 3rd party cabinets can also be selected to fit existing datacenter infrastructure.
Benefits
DCD35 Active: 6300m³/h / 3700cfm
DCD50 Active: 9000m³/h / 5300cfm Max. Flow rate without redundancy
DCD35 Active: 7400m³/h / 4400cfm
DCD50 Active: 10800m³/h / 6400cfm Voltage: 90 to 240VAC 50/60Hz Max. electrical power consumption:
DCD35 Active: 980W
DCD50 Active: 1185W Fail-safe mode: Max fan speed in case of failure (sensor, controller) Fan speed control by pressure difference Individual fan monitoring Alarm relay output for fan and sensor failure (general alarm)
Features
*To see model-specific downloads, you will need to go to the model-specific product page by selecting the model name in the specifications chart above.
