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- Dirty or clogged pre/HEPA filter media
- Low chilled water (CHW) flow or closed 2-way valve
- Thermostat calibration / sensor offset error
- Check filter differential pressure (DP > 150 Pa indicates dirty)
- Check CHW supply temperature (design 7°C / 44.6°F)
- Clean/replace pre-filters; inspect coil face velocity
- Restore design chilled water flow rate via balancing valve
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Explore verified mathematical derivations, Indian IS/NBC code clauses, plant troubleshooting guides, and direct AI specialist consultation.
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This verified technical document contains complete mathematical derivations, IS/NBC 2016 code references, equipment sizing schedules, and AutoCAD DWG blueprints.
Er. Rajesh Sharma
AI Diagnostic EngineSenior HVAC & Central Chilled Water Specialist
MEP Details AI Diagnostic Studio
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Engineering derivations formulated based on NBC 2016, ASHRAE, NFPA & IS Standards. Subject to Terms.
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