CFM/TON

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Why are my CFM/Ton calculations from Trace with a VAV system and energy wheel so low (150 cfm/ton)?  If the ballpark figure is 400 cfm/ton shouldn't I be getting something close to that number?

Anonymous's picture
Anonymous

I would bet that your system has been reset to 100% outdoor air (this is likely to happen if you are using VAV with std 62.1)

If this is the case, you need to set your max z ration under systems, and the options button. For more information on this, please read: http://energy-models.com/blog/10-1-10/understanding-max-z-ratio

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Bob
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what is your tons/sf?

Be Sustainable -- Never let today use up tomorrow!.

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