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Interactive walkthrough / Air handling

One trigger.
Three explanations.

SAT > MAT

Supply air reads warmer than mixed air while the heating valve is commanded closed. Follow three alternative explanations through the same connected HVAC system.

A passing heating valve, a supply-air sensor reading high or a mixed-air sensor reading low can require very different interventions. The investigation below follows the connected evidence through each alternative.

Choose an explanation, then advance through the investigation or play the sequence. Read the commentary beside the diagram as its readings and highlighted equipment change.

ABIE / Cognitive Insight Engine Walkthrough / Commercial Buildings: Air Handling
Air handling / connected systemABIE demonstration / Representative scenario
GENERATIONDISTRIBUTIONAIR HANDLINGZONESLTHW PLANTBoiler12% FIRINGCHW PLANTChiller15% LOADPLTHW PRI25%HYD SEPPLTHW SEC28%PCHW PRI25%HYD SEPPCHW SEC28%AHU-01OAMIXRECIRCMATT20.0°C0%LTHWHEATING0%CHWCOOLINGSFSATT20.2°CRETURN AIREALEVEL 112 FCUsAVG TEMP21.0°CAVG LTHW0%AVG CHW0%LIVE METRICSUsage● STABLEEfficiency● STABLEComfort delivery● STABLE
Cognitive Insight EngineScroll across to explore the system →