claperle
commented
1 year ago @mkarpman I did notice that there is a CoolingSystem--> cooling_system.coolingsystemoption is "Non_Mechanical". I suppose then we can determine if a zone in the B_RMI has non mechanical cooling if any of the hvac systems associated with it have non_mechanical cooling? By the rules of App G this would need to be a separate hvac system so any given zone may have 2 hvacs systems one the typical baseline system and the other with the non_mechanical cooling.
Per G3.1.2.8.2, "If the proposed design includes a fan or fans sized and controlled to provide non-mechanical cooling, the baseline building design shall include a separate fan to provide nonmechanical cooling, sized and controlled the same as the proposed design."
We noticed when writing the RDS for this rule that there are no data elements to indicate if non-mechanical cooling was modeled. Perhaps add a Boolean data element to the Zone data table asking "non_mechanical_cooling_modeled" or something like that.