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Data Center HVAC


Unlike a typical data center, all of InfoBunker's critical infrastructure is housed underground within the facility. This keeps our systems safe from any external forces and provides our clients with added security and peace of mind.

The InfoBunker data center HVAC plant rests within its own secure zone within the facility, surrounded by a foot of reinforced concrete and secured with steel doors. With this additional protection, the HVAC plant and chilling loop work around the clock to maintain the proper environment for computing needs.


Three DX units, three economizers, and two dry coolers comprise the key cooling features of the colocation facility. Each of these systems has the ability to individually carry the entire data center load with capacity to spare. For maximum efficiency, the facility is switched to dry cooling and economizer for 6 to 8 months out of the year. Dual loops, multiple points of redundancy and segregation within the systems keep the data center online with 100% reliability year round, in any situation.

InfoBunker utilizes a mixture of InRow and economizer units sized to meet the demands of the data center floor as well as private colocation rooms. These units are fed by multiple chilled water loops allowing for proper loading, redundancy and maximum efficiency. In the event of a critical failure of the loop piping or valve system, an emergency N+2 redundant fan-driven overhead forced air system can be used in order to maintain operations for the entierty of the data center while repairs are made. Temperature and humidity are controlled within the 2009 ASHRAE 9.9 standards as set forth for data center and colocation environments by a fully upgraded computer control system.

This mix of systems is essential to deal with the broad ranges of temperature and humidity for locating an efficient data center in Iowa.

Key Features of Interest:

  • Dry Cooling and Economizer System Utilized 6-8 Months Annually for Maximum Efficiency
  • 0.3 micron Filtration to All Air Entering Facility and HVAC Exchange Equipment
  • Massive 17,000 Gallon Reserve of Chilled Water In Case of System Failure
  • No Reliance on Public Utilities, Multiple Wells on Site to Supply Cooling Water
  • Total of N+2 Chilling During the Hottest Months with 2N + N+2 Chilling the Rest of the Year
  • TIMS-4 (Tiered Infrastructure Maintenance Standards) on all critical facility components