Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
From my adventure with using IES-VE for Title 24 compliance, most of the guidance hold and I noticed the following usability:
1) I still get the ventilation mismatch issues a lot of times. Usually, it's an easy fix for one or two zones after being exported to CBECC-COM and just scroll through the ventilation exhaust tab and checking if they are equaled.
2) Remove all holes or non-window glazing from IES-VE to CBECC-COM.
3) As for room names, I think the advice is pretty much true and avoid many problems down the line. For instance, rooms with the same name will be mapped into the same zone when you develop the zone in IES.
4) A number of things that typically doesn't translate through CBECC-COM is the Supply segments which cause error. When you name the Supply and Return - you kind of need a naming convention that would allow you to keep track and apply them to the appropriate zones - depending on how many systems you have. Copying systems over and having the same name for some of the flow causes error sometimes.
5) There are several ways to make windows in IES, but I would recommend to NEVER use the free-hand window option (when you're in plan view and just specify window width by dragging). It has more potential to generate surface errors because sometimes it doesn't define the geometry needs to be defined in E+/OS.
6) Use Title 24 materials when building constructions. And just double check your SGHC after exporting to CBECC-COM and run the model from there.
