HVAC and BEMS

In HVAC, the movement of outdoor air into a space through intentionally provided openings, such as windows and doors, or through non-powered ventilators or by infiltration.

Condition that exists when less air is supplied to a space than is exhausted from the space, so the air pressure within that space is less than that in surrounding areas.  Under this condition, if an opening exists, air will flow from surrounding areas into the negatively pressurised space.

A network is a collection of computers or devices connected to each other.  The network allows these computers or devices to communicate with each other and share resources and information.