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,