CFM per Ton

Standard 400 CFM per ton with humidity adjustments.

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Formula and source

Standard 400 CFM per ton for cooling (12000 BTU/hr per ton). Adjusted to 350 CFM per ton in high-humidity climates and 450 CFM per ton in dry climates per ACCA Manual S 2nd ed. guidance.

ACCA Manual S, 2nd edition by name.

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