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Active Rear Door Heat Exchangers

Active Rear Door Heat Exchangers

Our Active Rear Door Heat Exchangers (ADHx), used in combination with our Cooling Distribution Units, provide the most energy and space-efficient, high-density server rack cooling on the market, as tested by Silicon Valley Leadership Group (SVLG) who found that this system used just 20% of energy compared to conventional close-control air conditioning unit systems.

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Benefits & Features

Efficiency and Cost Savings
  • Reduces cooling energy consumption by 90% or more.
  • Reduces capital and total cost of ownership by 50%.
  • 100% sensible cooling with no condensate.
Installation Ease
  • Units install in minutes, ideal for retrofit or replacing existing units.
  • Provide the most flexible upgrade path.
  • No re-arrangement of enclosures required.
Flexibility and Scalability
  • Compatible with most enclosures and racks.
  • Top feed or bottom feed connections.

Technical Specifications

ServerCool® ADHx’s/CDU Cooling
Range of Effective Cooling (kW per rack)

5.0 - 30.0

Energy per 15 0kW Cooling (kW)


Approx. Capital Expenditure + Energy Cost for 150 kW Cooling for 5 Years


CO² Emissions for 150 kW Cooling for 5 Years

53,524 kg

Footprint per 150kW Cooling (m²)


Upgrade Path and Flexibility

Easy Retrofit

Noise Addition in Data Center


Built-in Redundancy of Moving Parts


Condensate-Free Operation


Low (<3 bar) Operating Pressure for Safety


Consequence of Failure or Leak

Small Volume Secondary Water Loop, No Impact on Shut Down

For complete specifications, see the Active Rear Door Heat Exchanger and Cooling Distribution Unit Brochure.

Product Literature

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