G3.1.2.10 says ER is needed when design cfm >5000 and more than 70% OA. I wonder does this mean the proposed or baseline design cfm? Our proposed design uses chilled-beam w/100% OA in the DOAS.

Hello All, I have two questions about compliance with the mandatory provision: 1) Only the main air conditioning system should be evaluated with the tables in chapter 6?

Our project is G+3 factory building and it is a major renovation and we are renovated wall, window, HVAC equipment and we consider ASHRAE 90.1.2007 Building envelope for base case & renovated

Greetings, We have a project, which is registered upon LEED-NC v2009, with unit type SI. The online form of EAp2 has a new form, which is directing us to upload the Minimum Energy Performance Calcu

We refer to ASHRAE 90.1 Supplementary Addendum i which discuss the LPD of tradable surface on table 9.4.5.

Thanks for the prompt and kind answer, Marcus. One more thing: Is it possible that baseline SHGC can be smaller than proposed one, even if both are below 0.25 (maximum)? Thanks

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.