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Cubic Feet per Minute, the common unit of volume flow rate for air in HVAC systems. For example, a rule of thumb for DX systems is for the fan to move 400 cubic feet per minute (CFM) of air for each ton of refrigeration.
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Cubic Feet per Minute, the common unit of volume flow rate for air in HVAC systems. For example, a rule of thumb for DX systems is for the fan to move 400 cubic feet per minute (CFM) of air for each ton of refrigeration.