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cluster:178 [2019/08/27 14:09] hmeij07 [Summary Bullets] |
cluster:178 [2019/08/27 14:10] hmeij07 [Summary Bullets] |
⦁ ROI of 7-8 years\\ | ⦁ ROI of 7-8 years\\ |
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[[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 hurs at 44% for Bridgeport and 48% for Hartford. So the expected 40% is low water mark as that percentage goes up if return ari gets hotter. At 85 degree it yields 53-56%. | [[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 ===== | ===== Tech Summary ===== |
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