[EnergyPlus_Support] Re: zone air humidity ratio

["Jean marais" <jeannieboef@xxxxxxxxx>]

Maybe this helps:
"Cautionary Note: The Ideal Loads Air System component does not control zone humidity levels. The Ideal Loads Air System component total cooling load is simply the enthalpy change between the mixed air condition (return air plus outdoor air, if specified) and the user-specified supply air condition for the current load. The latent load is the total load less the sensible load and may be positive or negative."

The air that recirculates should simply be adjusted to the set absolute humidity values that are constant and enter the zone.

Did you specify a latent load fraction in the otherequipment object?
Are the room setpoints the same? They may effect the humidity given off by the people object.



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