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2015-03 Performance Audit Report: Variable Frequency Drives (VFDs) at County of Hawai'i's Department of Parks & Recreation Swimming Pools
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2015-03 Performance Audit Report: Variable Frequency Drives (VFDs) at County of Hawai'i's Department of Parks & Recreation Swimming Pools
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12/16/2015 12:43:43 PM
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Table of Contents <br />Introduction...............................................................................................................................1 <br />Background...............................................................................................................................2 <br />AuditObjectives........................................................................................................................4 <br />AuditScope and Methodology.................................................................................................4 <br />Commendations and Noteworthy Achievements...................................................................5 <br />AuditResults.............................................................................................................................6 <br />The Department of Parks & Recreation has not installed VFDs, which have a <br />proven history in reducing monthly electricity costs, at seven of its swimming <br />pools...............................................................................................................................6 <br />Why have more VFDs not been installed?...........................................................8 <br />What is the effect of installing VFDs?...................................................................9 <br />What is the installation cost for a VFD?..............................................................10 <br />Recommendations..................................................................................................................12 <br />Management's Comments......................................................................................................13 <br />AppendixA — Audit Criteria....................................................................................................14 <br />Appendix B — Detailed Pool Electricity Costs.......................................................................19 <br />
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