G3.1.1, Exception "d" requires laboratory spaces with a minimum of 5000 cfm of exhaust to use a baseline system type 5 or 7 that reduce the exhaust and makeup air volume to 50% of design values dur

G3.1.2.5 states: Ventilation.

Our Proposed project (LEED 2009 NC) has a hybrid service hot water system that uses a water-source heat pump as the primary hot water generator and has a heat exchanger as a backup downstream of t

Hello, The model I'm working on has instant electric water heaters, per 90.1 7.4.2 Equipment Efficiency, "Equipment not listed in Table 7.8 has no minimum performance requirements." Electr

Dear LEED, We are trying to achieve points in EAp2 scorecard via Building Simulation Method.

We are doing a project which is being 10% retrofitted. The reviewer wants us to used the envelope values before retrofitting as baseline and the new envelope properties as the proposed project.

I am modeling a building that directs all building exhaust through an energy recovery ventilator, including bathroom exhaust.

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

Hi, I have a doubt on how to model the baseline HVAC system of a specific project, which consists of a 4-floor base building from which rise two tower with independent HVAC systems.

I know that I can take credit for automatic daylighting controls under the Performance Rating Method of Appendix G.