Applicable Systems
YVAA
Symptoms
Excessive vibration has been detected. Continued operation may cause mechanical damage to rotating components.
Possible Causes
- Rotating component imbalance or misalignment
- Bearing wear or failure
- Foundation or mounting loose
Troubleshooting Steps
- Step 1: Measure vibration amplitude and identify dominant frequency
Vibration source identified - Step 2: Check alignment and coupling condition
Alignment within tolerance - Step 3: Inspect bearings for wear and replace if necessary
Bearings in good condition or replaced
How to Reset
To reset: Clear the vibration alarm after bringing vibration within acceptable limits.
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Source: York YVAA Chiller Manual, Johnson Controls/York
Category: Chiller
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