Greetings, The standard states that the pump power must be 22 W/gpm. If the project has two chillers and primary secondary circuits, whereby there is on pump per chiller in the primary circuits and

Sorry for a couple of elementary questions, but my searches haven't been successful. 1. Is 90.1 compliance required, or only the mandatory provisions? 2.

Hallo, I have read the insulation requirements in Section 7.4.3 but it seems to focus on circulating and non-circulating systems with a storage tank.

If a project retains existing mechanical systems, but the overall scope of the renovations meets the new construction threshold, are the baseline calcs based on code-minimum or should the project a

We would like to apply the exceptional calculation method for guest room lighting in a 165-unit hotel.

The definition of Unmet Load Hours has been vague for quite some time. ASHRAE 90.1 2010 was supposed to address this issue. Do we have some resolution about this yet?

Apart from LEED/USGBC, I want to design a pump which can supply hot water at each floor's apartment for space heating (of total 20 floor). what will be the head?

We are considering LEED certification for a four season golf range hitting facility that will have hitting areas with overhead radiant heaters and indoor conditioned areas as well.

What should be the baseline for interior glazing such as for atrium and partitions? Generally, the designed case will be SGU with high U value and SHGC.

Hi All, I am modelling a VRF system using ApacheHVAC in IES. But have no idea which prototype to choose.