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Christian Northeast Hospital HVAC Upgrade with Yaskawa VFDs Case Study

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This document describes how Barnes Jewish Christian Health System (BJC) achieved over $17,000 in annual energy savings by upgrading the HVAC system at Christian Northeast Hospital with Yaskawa variable frequency drives (VFDs) and a Siemens Apogee building automation system. The case study explains how replacing a constant air volume system with VFD-controlled fans reduced energy consumption by matching fan speed to actual demand, leveraging the centrifugal fan law where power varies with the cube of speed.

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