Rear Door Cooling Solutions
Rear door cabinet cooling or back of rack systems are becoming the more favourable choice for data centre cooling. They are referred to as rear door heat exchanges (RDHE), and ideal for high density computing environments that utilise Blade or high performance clusters (HPC).
Rear Door Cooling Solutions
The overall design of your data centre cooling systems should be sized to the I.T. load, with the ability to expand without disruption to critical services which avoids energy wastage due to system losses. It is vital to build redundancy into your data centre cooling systems. RDHE units require minimal servicing ideally every 3 - 6 months, and redundant systems provide additional resilience and facilitate repairs during maintenance checks.
Passive Data Centre Cooling Solutions
RDHE units are positioned at the rear of the cabinets and collect the waste heat from server hardware that flows directly onto the coil. The coil then removes the heat via chilled water systems. Passive systems rely on the fans within the server PSU’s to transfer the heat onto the coil. These can be set up using either;
Air Cooled Condensers or Dry Air Coolers
Using external dry air coolers with steel pipework, they are a very efficient but a more costly cooling solution than DX. They are however, ideal for Hybrid DX or Chilled Water CRAC units combined with chillers. Their deployment is generally more suited to medium and large sized data centres.
Chillers & Free Cooling Chillers
External chilled water units with steel pipework, these cooling solutions are very efficient and excellent for chilled water CRAC units. Free cooling chillers come combined with a dry air cooler and so are ideal when external space is restricted. Chilled water data centre cooling systems are most suited to medium and large data centres.
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Active Systems
RDHE units are positioned at the rear of cabinets and collect the waste heat from server hardware that flows directly onto the coil. The coil then removes the heat via chilled water systems.
Active systems have additional inverter driven EC rated fans either axial or centrifugal attached to the RDHE to draw more hot air through the coil. These can be set up as either:
Air Cooled Condensers or Dry Air Coolers
Using external dry air coolers with steel pipework, they are a very efficient but a more costly cooling solution than DX. They are however, ideal for Hybrid DX or Chilled Water CRAC units combined with chillers. Their deployment is generally more suited to medium and large sized data centres.
Chillers & Free Cooling Chillers
External chilled water units with steel pipework, these cooling solutions are very efficient and excellent for chilled water CRAC units. Free cooling chillers come combined with a dry air cooler and so are ideal when external space is restricted. Chilled water data centre cooling systems are most suited to medium and large data centre
