For a VAV (multiple-zone) system should the Design System Primary supply Airflow (Vpsd) sum up the total supply (and not the outdoor) air of each zone?

Hallo all, We have a project in one Asian Country, where the Guard house (Gate house) is using a split type unit to condition the room, without mechanical fresh air intake.

In IEQp1 i already Upload 62MZcalc and Results from a Simulation Software and Fill the narrative Tab and all other but my check compliance is still indicate (Y) so my Doubt Whether we need to fi

I am calculating the ventilation requirements for a conference room. From the ASHRAE Table 6-1 I selected .06 cfm/ft2 and 5 cfm/person. The room has occupancy of 8 people.

I'm trying to show compliance with IEQp1 using indirect mechanical ventilation in residential units. Makeup air units supply the corridors which indirectly ventilate the residential units.

Hi, There's several quality level for interior air in EN 15251 : category I to III.

Can the make-up air (CFM) provided for a kitchen hood exhaust system be considered as part of the total OSA CFM, in the VRP calculation?

I am conducting a survey in affiliation with University of Cincinnati for my Master's thesis which would take just 10-15 minutes of your time.

How do you document if there are trickle vents in the apartments?