This engineering manual outlines verified diagnostic workflows, mathematical calculations, and safety clearances for Smart Chiller Procurement: Why NPLV Matters More Than Full-Load COP. Adheres to national and international building standards including ASHRAE 90.1 / ISHRAE.
Table of Contents
Don’t Just Look at Full-Load COP — Focus on NPLV
When you select a chiller for a building, it’s tempting to go by the full-load COP printed on the brochures. But here’s the reality: a chiller rarely runs at full load. In most chilled-water plants — especially in buildings with multiple chillers — the system runs at part load or low load about 70–90 % of the time.
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This verified technical document contains complete mathematical derivations, IS/NBC 2016 code references, equipment sizing schedules, and AutoCAD DWG blueprints.
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