Translate the layout into an HVAC brief

Mark seating, workstations, enclosed rooms, doors and ceiling heights on one plan. Add existing diffusers, return points, ducts, controls and service hatches. Note where occupants may feel a direct draft and where a partition could block return air. Ask the building operator which parts of the central system the tenant may modify and which approvals are needed.

The DENAIR inspection note for a future Business Bay salon (message 16294) described a central AHU system with ducts rather than individual room units. The stated task was to redistribute supply for the new salon design so occupants would not be blown on. This is a design brief and site observation, not evidence that the redistribution was installed or that the draft complaint was resolved.

Agree checks before closing the ceiling

Request a marked diffuser and return layout, the intended control zones, access to dampers and the measurement or observation plan for the finished space. Separate work the tenant contractor will perform from central-system settings controlled by the building. After fit-out, compare the installed outlets with the approved plan and record operating mode and occupied-area observations. If a proposed change depends on central AHU capacity or settings, have that dependency confirmed by the responsible building team before promising a comfort result.