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--- cluster:178 [2019/08/20 12:39]
hmeij07 [Aug Photos]
+++ cluster:178 [2019/08/26 15:29]
hmeij07 [New design]
@@ Line 6: / Line 6: @@
 **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
@@ Line 16: / Line 16: @@
 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 =====
@@ Line 190: / Line 204: @@
 **8/20**
-Meetings moved to Thu afternoon (1pm now vs 7:30am)
+Meetings moved to Thu afternoon (1pm now vs 7:30am)\\
-New CRAC2 unit on, data center temp dropped 5-7 degrees
+New CRAC2 unit on, data center temp dropped 5-7 degrees\\
-Modular wall up
+Modular wall up\\
-Fire suppressant install next, followed by ceiling
+Fire suppressant install next, followed by ceiling\\
-Reconfigure floor tiles near CRAC2
+Old CRAC1 demolishing started\\
-Old CRAC1 demolishing started
+**08/22**
+Wall AC units on\\
+Dim switch relocated, network area missing led installed\\
+Old CRAC1 removed\\
+Floor tiles slowly reconfigure, monitor temps\\
+Condenser leak in second unit, new item shipped\\
+Deliver new CRACR1 before move in day\\
+Fire suppression wiring and piping today\\
@@ Line 214: / Line 237: @@
 {{:cluster:100_2378_small.jpg?nolink&300|}} Seriously. Pink! Official industrial color\\
 {{:cluster:100_2369_small.jpg?nolink&300|}} New Hall/Atwater-Excley generator (green one ;), 450 Kw, 16,000 lbs\\
-{{:cluster:100_2382_small.jpg?nolink&300|}} 08/16/2019 \\
+{{:cluster:100_2382_small.jpg?nolink&300|}} 08/16/2019 New CRAC2 \\
 {{:cluster:100_2389_small.jpg?nolink&300|}} 08/19/2019, Temp dropped 5-7F\\
 {{:cluster:100_2385_small.jpg?nolink&300|}} Modular wall up (back side)\\
-{{:cluster:100_2387_small.jpg?nolink&300|}} Front, edges will connect with vinyl curtains)
+{{:cluster:pp-crac2-small.jpg?nolink&300|}} Front, wall edges will connect with vinyl curtains)\\
+{{:cluster:pp-crac2-cold-aisle-small.jpg?nolink&300|}} Cold aisle looking at CRAC2\\
+{{:cluster:pp-crac1-small.jpg?nolink&300|}} Old CRAC1 removed, new frame installed\\
-\\
 **[[cluster:0|Back]]**

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