FW: Excess winter cooling load in eQuest

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I would check the minimum airflows for the VAV zones. 30% of maximum air flow is generally a code minimum (unless there is a critical space that needs a high fraction of ventilation, such as a conference room, or the cfm/sf is near 0.4). If your percentage is abnormally high, then the system will have a lot of reheat. Unfortunately the eQUEST wizard limits assigning different minimum airflow percentages to only two types of zones - core and perimeter - so it's harder to deal with a critical space that affects the ventilation fraction.


Keith Swartz, PE, LEED? AP

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Joined: 2011-09-30
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