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--- cluster:178 [2019/08/26 15:29]
hmeij07 [New design]
+++ cluster:178 [2019/09/05 18:24]
hmeij07 [Aug Photos]
@@ Line 31: / Line 31: @@
 ⦁	ROI of 7-8 years\\
+[[https://www.vertiv.com/en-us/support/tools-applications/free-cooling-economizer-calculator/|Vertiv Free Cooling Calculator]] 80 degree return air (conservative) with 70% load rates full free cooling hours are at 44% for Bridgeport and 48% for Hartford. So the expected 40% lsted aboveis low water mark as that percentage goes up if return air gets hotter. At 85 degree it yields between 53-56%.
 ===== Tech Summary =====
@@ Line 243: / Line 244: @@
 {{: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\\
+===== Sept Meetings =====
+**09/05**
+New electrician but critical work coming up\\
+Missing one track sensor\\
+CARC1 installed, piping finish and leak test\\
+New CRAC1 power up 9/19 by Liebert with owner training\\
+Duct work and dampers install today\\
 **[[cluster:0|Back]]**

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