Under ASHRAE 90.1 – G2.5, can we avoid to use a workaround to detail a HVAC system feature which could involve an energy saving, therefore avoid to do an exceptional calculation method, if we...

Hi Marcus,

We've a LEED CS certified building in which the Tenant will occupy almost 100% of the total area, so we will fall in CASE 2.
We obtained the CS certification EAc5.2 credit...

Since eQUEST is unable to model dedicated outdoor air system linked to the radial panels, we modeled DOAS units by creating “dummy zones” within the model. Does this simulation method require an...

Hi everybody,

I have a CS2009 certified project and now I'm working on its CI2009 certification, which will be applied to the whole building area (there is only one tenant).
My...

Dear All,
I’m modelling a water centrifugal chiller in System 8 of ASHRAE 90.1 (Appendix G), using HAP by Carrier.
I have to need how calculate the minimum entering condenser water...

Dear All,
We are modelling a Baseline Building with System 8 “VAV + PFP boxes” using HAP by Carrier.
We are wondering how to model the...

We are working on a new constuction in Italy under LEED Certification (NC 2009).

An existing building, physically sepatated from the new construction, is located inside the LEED Boundary....

Is Table 10.8 mandatory for plug fans of new buildings? The fans are installed in Air Handling Units. If they are mandatory, are they mandatory both for supply fans and for return fans?

What are the mandatory provisions for fan coils whose coils are heated through electrical resistances? I think par. 6.4.3.3.1 for the control.
Something else? Nothing concerning the...

Hi all. I’d like to give the right interpretation about option2. I do understand that Impact reduction of certified product must be satisfied for 3 of the 6 categories at minimum, in order to...