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cluster:178 [2019/08/22 17:59]
hmeij07 [Aug Photos] 		cluster:178 [2019/08/26 15:29]
hmeij07 [New design]
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 **Exley Science Center – 265 Church St. – Data Center HVAC Replacement** **Exley Science Center – 265 Church St. – Data Center HVAC Replacement**
  
-Replace computer room air conditioning units, replace rooftop condensing units, install new economizer and pump package, install new drop ceiling and lighting, install hot and cold isle containment system.  New system will replace a ~40-year-old system that is critical for the campus IT infrastructure and save 260,000 kWh/yr of electricity (estimated at $35,000 in annual savings).+Replace computer room air conditioning units, replace rooftop condensing units, install new economizer and pump package, install new drop ceiling and lighting, install hot and cold isle containment system.  New system will replace a ~40-year-old system that is critical for the campus IT infrastructure.
  
   * Project Schedule: 5/28/19 – 10/1/2019   * Project Schedule: 5/28/19 – 10/1/2019
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 The HPCC is in the top row of racks on the left (room for 3 additional racks, light yellow dots, 5 existing racks, dark yellow dots).  The HPCC is in the top row of racks on the left (room for 3 additional racks, light yellow dots, 5 existing racks, dark yellow dots). 
 +
 +===== Summary Bullets =====
 +
 +⦁ Replace computer room air conditioning units (CRAC, Liebert DSE DA085)\\
 +⦁ Replace rooftop condensing units\\
 +⦁ Install new economizers and pump packages\\
 +⦁ Install new drop ceiling and lighting (LED) with dim switch\\
 +⦁ R-410A refrigerant, "free cooling" with ambient air 45 degrees or less (about 3,578 hours/yr or ~40% )\\
 +⦁ Reduce  square footage for rack servers (L-Room normal room temperature), from 28x17 to 22x11 tiles, or ~50%\\
 +⦁ Install hot and cold isle containment system (vinyl curtains)\\
 +⦁ Abandon sub floor cold air delivery (push cold air above floor)\\
 +⦁ Total load of approx 88 Kw (~20% growth, 45 Kw for ITS, 25 Kw for HPCC)\\
 +⦁ Save approx 260,000 Kwh/yr of electricity (estimated at $35,000 /yr in savings)\\
 +⦁ ROI of 7-8 years\\
  
 ===== Tech Summary ===== ===== Tech Summary =====
cluster/178.txt · Last modified: 2023/09/04 20:46 by hmeij07

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