Hi, Our project is mechanically ventilated by 100% OA constant volume enthalpy heat recovery ventilator.

We are deciding between the use of EN 15251 and the use of ASHRAE 62.1. Do you have experience in applying EN 13779–2007?

Multiple identical RTUs combined with plenum ducts serve a whole building. How can I prepare 62.1 MZcal? Can I add up cfm of all RTUs and assume it like one system using one sheet?

My Project has one FAHU on roof which is supply treated Fresh air to all AHU"s, And each AHU further supplies the mixture of outdoor air and Recirculated air to various zone via VAV (no reheating,

In one of our projects, the client is willing to have open spaces with high flexibility. In these open spaces, “boxes in the box” for copy rooms will be created.

I am not quite sure on the wording regarding natural ventilation and the Europe ACP. The online Ref.Guide states "Projects in Europe may use Arbeitsstaettenrichtlinie ASR 5 as a local equivalent to

Art classrooms are considered both in Tab. 6-1 and in Tab. 6-4. If we respect Tab. 6-4, could we avoid the verification of Tab. 6-1 (i.e. could we avoid the outdoor air supply)?

Question about meeting this prereq in Residential Projects - v4 requires one of three types of monitoring for naturally ventilated projects - exhaust airflow, alarm on openings, or CO2 with alarm.

We provide Leed certificate and green building service but how are we developing this process in Turkey?

According to ASHRAE 62.1 - 2010 User's Manual, example 6-AF, the requirement associated with controls that guarantee that the openeings remain open during occupancy can be met with an administrativ