What are we supposed to submit for the "Spring" and "Fall" conditions for the Thermal Comfort Tool for Upload IEQc7.1-2?
We have design setpoints for cooling and heating and easily identifiable clothing options for winter and summer. Will LEED accept the thermal comfort tool submissions if you only include the winter heating and summer cooling conditions or do they make you include something for Fall and Spring, since it is an option on the thermal comfort tool?
For fall and spring, if you have to fill them out, would you use heating and cooling conditions or would you need to fill out both? It seems like some days would be in heating and some would be in cooling. Also, people's clothing will change depending on the weather, which will be different the first day of fall and the last.
It seems to me like we design for peaks and if we satisfy the summer and winter conditions, the spring and fall should also be comfortable. What is LEEDs take on this? Do we just need to make up numbers for spring and fall and can we just submit the winter and summer peak conditions?
Thanks,
Christopher Schaffner
CEO & FounderThe Green Engineer
LEEDuser Expert
962 thumbs up
December 31, 2015 - 5:25 pm
Typically only winter and summer conditions are submitted.
Logan Dorrell
Sr. Mechanical EngineerAECOM
3 thumbs up
January 26, 2016 - 1:52 pm
Well, I tried that and they did not accept it. They replied, "Provide documentation that includes the worst case design outdoor and indoor conditions for each month. Show the predicted worst case indoor conditions for each month on Figure 5.3 of ASHRAE 55-2004 or Figure A1 of CEN Standard EN 15251".
The credit does not have language asking us to prove every month, do they? How are we to determine what the "worst case outdoor condition" would be for each month, when ASHRAE 90.1 just lists peak heating and cooling design conditions?