Question-and-Answer Resource for the Building Energy Modeling Community
 | 1 | initial version |
This is likely related to your earlier question. I'm not quite sure how you managed to get results for cooling load without inputting cooling design days.
Regardless, your model does not contain ventilation, so heat builds up in zones rather than leaving through exhaust air. I suggest adding design specification outdoor air objects to your conditioned spaces and adding design days, then re-running and re-checking the result.
| | 2 | No.2 Revision |
This is likely related to your earlier question. I'm not quite sure how you managed to get results for cooling load without inputting cooling design days.
Regardless, your model does not contain ventilation, so heat builds up in zones rather than leaving through exhaust air. I suggest adding design specification outdoor air objects to your conditioned spaces and adding design days, then re-running and re-checking the result.
Design days are peak conditions for heating and cooling and are necessary to autosize your system. You can find the design days (in .ddy files) along with the .epw for the location. epwmap has a map to help you find design days for your location.
In OpenStudio, here is where you input design days:
