What is the best way to add HVAC system to current "ExportToOpenStudio"

[MingboPeng]

Hi @mostaphaRoudsari @chriswmackey ,

As you know, I am adding a bunch of hvac components to current HB workflow (HB+ as well when the energy part is added), and thinking what is the best way to merge the osm model that HB generated.

Here is a diagram of workflow:

Solution1:
Keep everything still, and add all hvac components right after saved osm file before run. (I can add a merge method in C#, so in ExportToOpenStudio, just need to call it).

Solution 2:
use the openstudio model from hvac system as starter, instead of an empty osm model. But this require a bit works to check and connect ThermalZone to Spaces

Please let me know if this makes sense.
Thanks,
Mingbo

[chriswmackey]

@MingboPeng ,
It's hard to give advice on the best route forward without knowing exactly what you want to customize in the HVAC. I can tell you that the way to implement the first one is very straightforward. You just export the conditioned zones with the thermostat only and then you can add a fully detailed HVAC after the export. For the second one, you'd likely have to edit the HVAC-setting scripts in the Export to OpenStudio component.

[MingboPeng]

Agreed, the first one changes the minimum of "ExportToOpenstudio". This might be easier to maintain later.