28 Air Handlers—New Installation
Symptoms: Within 6 months of the grand opening, complaints about lack of air flow, vibrating floors, and system trips were “flowing” in.
Diagnosis: VIBRATION ANALYSIS pointed to worn/pitted bearings. Motors had 3 months to live.
Treatment: Bearings proved to be pitted. They were bone-dry and discolored from heat, despite a PM schedule! We performed corrective action and CRITICAL SPEED ANALYSIS. We designed an optimized PM program, and management insisted we perform PREFUNCTIONAL TESTING on all future installs and PERIODIC MONITORING of all equipment. Performance is now optimal.
ROI: Avoided catastrophic failure of ¾ of the motors, saving $200k-$300k. Downtime would have severely impacted hotel revenue & client satisfaction. Future maintenance costs were reduced by improving operator performance.