Open Studio VRF System unmet hours

edit

Hello everyone,

I'm using openstudio to model a 12 floor office building, in which, 9 floors are the same. For the first time I'm using a thermal zone multiplier.

I'd like to know if the correct approach is to multiply the VRF capacity and OA/return air flow to meet with the multiplied floors. OpenStudio doesn't do that by itself, right? At first, I was not multiplying capacity and ir flow accordingly to the multiplier and the model presented a lot of unmet hours. Now that I've increased the input on VRF and air flow, the hours are mostly gone.

I appreciate your help.