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--- cluster:178 [2019/08/20 12:40]
hmeij07 [Aug Photos]
+++ cluster:178 [2019/08/26 15:28]
hmeij07 [Tech Summary]
@@ 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 217: / Line 240: @@
 {{: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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