Services
While dependent on the size of the equipment and individual constraints, aim to allow for the following distances from HVAC units (Heating, Ventilation and Air conditioning units) to diffusers in the meeting room:
Variable air volume systems -
4.5m (15') from unit to first diffuser.
Fan Coil unit systems -
6m (20') from unit to first diffuser.
Consider air velocities and diffuser selection to minimise noise from HVAC systems as much as possible. Cost is always a factor, but ensuring a low background noise in meeting rooms will massively help the speech intelligibility in the room.
Key Hints
We recommend an increase from the ASHRAE 62.1 rates. 30 Cubic feet per metre of outside air per person should be provided to conferencing rooms.
Providing local temperature control to the room is useful to ensure occupants remain comfortable, irrespective of surrounding conditions.
Avoid locating intake or extract (supply/return) ductwork above or near sensitive conferencing microphones. Unwanted noise from air flow on microphones can cause disruptive noise on the video call.