Question-and-Answer Resource for the Building Energy Modeling Community
Get started with the Help page
Ask Your Question

Revision history [back]

click to hide/show revision 1
initial version

Electric System: VAV reheat high heating load

Energy modeling a building that contains a packaged rooftop dx coil electric heat coil with VAV reheat in zone. Currently the Setpoint Manager: Warmest is used in the air loops to supply 55-60 degree are to the zones, and the VAV heat coils condition the air to the thermal zone tstat parameter. I am experiencing high heating loads(about 200k kbtu/yr) and low cooling loads (About 50k kbtu/yr) for the building. Is there a way to reset the SAT in the heating season to be higher so the building is not relying on the VAV box reheat coils to condition the air from 55 to 85-90 degrees.

Attached is the link to the Openstudio model as well as the mechanical spec sheet for the project, only pay attention to the circled tables on the mechanical spec sheet because they are relevant to this part of the site. Any insight into this would be greatly appreciated

https://drive.google.com/drive/folders/1cr0rOn8anWc-QTGDhYhnN7io0lJKnIcI

Electric System: VAV reheat high heating load

Energy modeling a building that contains a packaged rooftop dx coil electric heat coil with VAV reheat in zone. Currently the Setpoint Manager: Warmest is used in the air loops to supply 55-60 degree are to the zones, and the VAV heat coils condition the air to the thermal zone tstat parameter. I am experiencing high heating loads(about 200k kbtu/yr) and low cooling loads (About 50k kbtu/yr) for the building. Is there a way to reset the SAT in the heating season to be higher so the building is not relying on the VAV box reheat coils to condition the air from 55 to 85-90 degrees.

Attached is the link to the Openstudio model as well as the mechanical spec sheet for the project, only pay attention to the circled tables on the mechanical spec sheet because they are relevant to this part of the site. Any insight into this would be greatly appreciated

https://drive.google.com/drive/folders/1cr0rOn8anWc-QTGDhYhnN7io0lJKnIcI