According to the manual for the Rheem Air Handler RBHK-21J00NHB, the unit responds to a Humidistat's request for dehumidification by dropping the CFM to
85%. For a 2.5 ton compressor, nominal CFM is 1000, so it will run at 850 until the humidity has dropped to the setpoint. My question is this: After reading a thread about the inadvisability of closing vents in unused rooms in the house, the reason given to NOT do that is that the reduced airflow could damage the unit. Wouldn't the same problems result from the 15% reduction in CFM for reducing humidity?
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