See all forum discussions about Hospitality-NC-v4 EAp2
 Subscribe to new posts about Hospitality-NC-v4 EAp2 Post a new question aboutHospitality-NC-v4 EAp2
See LEEDuser’s guidance on Hospitality-NC-v4 EAp2»
FAQs about EAp2 :

Do the required savings for this prerequisite (and credit) need to come only from building energy, or also process loads?

Our project doesn't have enough energy savings to earn the prerequisite. Can we get there by incorporating onsite renewables?

Our proposed design has insulation R-values that are below those prescribed by ASHRAE 90.1-2010. Can we still meet the prerequisite?

View answers »

Forum discussion

Hospitality-NC-v4 EAp2:Minimum energy performance

Baseline HVAC System for Hotels

Default Avatar
Ricardo Sá
Director of Sustainability
Edifícios Saudáveis Consultores (503 910 767)
LEEDuser Basic Member
79 thumbs up

Dear all,

 

we are performing the energy modelling of an hotel building for purposes of EA P2 (minimum energy performance) and EA C2 (energy performance). We have the following doubts:

 

  • how shall we classify circulations serving hotel rooms ? Residential (as the hotel rooms themselves) or non-residential

 

  • we could not find guidance in ASHRAE 90.1 about outdoor air ventilation system for spaces endowed with HVAC System 1 (PTAC). Our proposal is to apply the SFP referred in section G3.1.2.10 (for systems 1 and 2) to the baseline outdoor air flowrate. Do you agree ? Or outdoor air flowrate fan energy use is already embedded in the above referred COP ?

 

Thanks in advance,

0
Post a reply

You rely on LEEDuser. Can we rely on you?

LEEDuser is supported by our premium members, not by advertisers.

Go premium for $15.95  »

Thu, 04/30/2020 - 17:05

1. For a hotel building, the entire building can be classified as residential. However, reviewers tend to be lenient with the classification of the spaces outside of the rooms themselves, so you should also be able to classify them as nonresidential without a problem. 2. The Baseline should not have a separate outdoor air system. The outdoor air should be modeled as supplied by the PTAC units directly. The PTACs would get modeled with the SFP from G3.1.2.10, and the fan energy must be removed from the rated cooling efficiencies in Table 6.8.1D.

Add new comment

To post a comment, you need to register for a LEEDuser Basic membership (free) or login to your existing profile.