Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
As a suggestion, have you done a quick hand calculation on what you expect the loads to be in the building. It might be that your constructions and infiltration rates are not what you would expect. Also you might not have as much load in the building from people, lighting and plug load that you were expecting. You might want to check that the setpoint on your cooling coil isn't set too low. You might be supplying the zones with very cold air from your AHU which is adding a heating requirement to the building in the summer. That would be where I would start. Then I would take a hot day and work through my AHU node by node to see what each component is adding I would go through both flow rate and temperature information. Finally I would do the same with my plant and see what temperatures are coming off my boilers and chillers and whether these are what I would expect. Hopefully once you have gone through all that you should see some areas were the controls / inputs weren't quite what you would expect them to be.
