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TAG rejects mandated HVAC capacity check; proponents urged to refine proposal
5055231 · June 24, 2025
AI-Generated Content: All content on this page was generated by AI to highlight key points from the meeting. For complete details and context, we recommend watching the full video. so we can fix them.
Summary
A proposal requiring a field capacity check on ducted HVAC systems (O9) was disapproved by the TAG following discussion about test methods, climate applicability, sampling and the practicalities of applying a 10% tolerance.
Jonathan introduced proposal O9, a requirement to perform a capacity check on centrally ducted heating systems at installation time (a test referenced to the ANSI/RESNET/ICC commissioning standard task for measuring delivered capacity). The proposed test calculates delivered heat as CFM x 1.08 x measured —9Delta-T—9 (supply minus…
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