Hi,

It is not clear from G3.1.3.19 where the preheat coil should be placed.

Is it upstream or downstream the economizer and the heat exchanger?

In the November 2023 issue of ASHRAE Journal, members of the 90.1 committee stated that 60% of the BPFs in ASHRAE 90.1-2022 have become less stringent than those in 2019 and some are even less...

I am working on a model which has Desiccant wheel in design case. Do we need to model desiccant wheel in baseline case as well? I dont see any section related to this in ASHRAE 90.1, however, in...

Marcus Sheffer LEED Fellow 7group / Energy Opportunities LEEDuser Expert 5879 thumbs up October 8, 2023- 11:09 am It appears that this question should be asked in the forum relative to the enhanced commissioning credit. Log in or register to post comments Hafsa BOUCHFER LEEDuser Basic Member October 9, 2023- 3:52 am thank you for your clarification, I have just published my question in the enhanced commissioning credit forum. Log in or register to post comments ...

I am working on a new construction project in California that required PV and battery per Title 24. Does this need to be accounted for in the energy model? Does anyone have experience...

Has any one worked on LEED project that includes increased ventilation credit AND the project has an pressurization-based ventilation rate? What should I do with the baseline model? should I a)...

Hi all,

I've been searching around the LEED V2009, V4 and V4.1 EAp2 / c2 versions trying to find an answer to this problem, but I've encountered little information on how to model natural...

some post in this forum where the additional power has been defined as process load. For example:  https://leeduser.buildinggreen.com/forum/additional-interior-lighting-power-1 We use this assumption...

Dear Srs, I hace a question about the ratio windows/walls in leed v4.1. Is for a building with two differents uses: 3.117 m2 of office and 13.472m2 of warehouse.

When we had modeled the...

Under ASHRAE 90.1-2010, if the fenestration area was less than 40%, the baseline had to match the proposed model for fenestration area. Now in ASHRAE 90.1-2016, there is a table published for the...