On the site of the building which I’m modelling there is a floodlight that is placed on the external ground and that lights the external facade of the building. Building ground is considered as “...

Hi,

I understand EER of DX unit from ASHRAE 90.1 include indoor fan power. Compressor and condenser fan power shall be derived from EER that subtracting indoor fan power.

For a...

I don’t understand the meaning of paragraph G3.1.2.8 of ASHRAE 90.1, in particular: “System design supply airflow rates for the baseline buildings design shall be based on a supply-air-to-room-...

We are looking into a design-build project of a hotel where the owner is requiring in-room PTAC units. My concerns are:
1.) the ability to achieve a LEED building with maybe not the most...

The ASHRAE requirement (Prerequisite for LEED) limits voltage drop in feeders to 2% based on demand. So while the ampacity of the cables is well below the allowable maximum, voltage drop becomes...

I am modeling a building which is connected to a district...

I’m modeling a hotel (5 storey, one floor is underground) in which there are also offices, a coffee bar, a wellness center... I read that “hotel/motel guest rooms” are among the residential...

I am working on a project that consists of an existing building which will be retrofitted and modeled as a major renovation under LEED BD+C. The new design calls for a large data center on the...

Hello.
In the building which I’m modeling there is an underground floor whose slab-on-grade floor can be considered as divided in three parts: one part (wellness) is heated with heated...

Hi, we have been using the "Advanced Energy Modelling For LEED" document and have a question one some of the exceptional calculation methodology examples. The interiro lighting controls (D.4 in...