Data Center HVAC Retrofits

CMS overhead cooling units are similar in design to our well-known In-Row Units. They are reconfigured to be installed above the cabinets in the cold aisle. Since they are over head and can have a wider form-factor, they can house more fans and deliver higher cooling capacities than a standard close-coupled in-row solution.

CMS Overhead Cooling Units Offer the Following


  • Maximize Floorspace for Server Cabinets
  • High-Capacity Airflow
  • Evenly Distribute Air in Cold Aisle
  • Low-Approach Coils use Less Chiller kW
  • Ultra-Quiet


  • 12, 14, 32 Ton Options+
  • 600 CFM/Ton+
  • EC or VFD Plenum Fans
  • 0.065kW/Ton Power Draw++

+ Since CMS builds 100% custom cooling systems, larger, higher-capacity units can be made.
++ Compare to ~0.5kW/ton for a standard cooling unit picked out of a catalog.
Chilled water overhead units have been made in 8 foot and 10 foot lengths, approach of 5-6 degrees and the fan kw is approximately 2% of IT load.

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