This tab is only displayed for simulation-based ratings methods. It displays details of room infiltration and ventilation.
The dialog displays a list of air exchanges for the room. By clicking on an item from the list of you can view, and if appropriate edit, its specification.
In the case of simulation-based ratings methods the single auxiliary ventilation air exchange on this tab is set automatically from the NCM template, and the single infiltration rate is derived from parameters set on the Building & System Data dialog.
All air exchanges represent air flow entering the room.
If ApacheHVAC is used to model the room serving the system, the Variation Profile for the auxiliary ventilation air exchange should be set to ‘Off continuously’ and replaced by an equivalent flow from the HVAC system.
Type
The type of air exchange (Infiltration, Natural Ventilation or Auxiliary Ventilation)
Reference
A verbal descri p tion of the air exchange
Variation Profile
A modulating profile specifying the variation of the air flow throughout the year. This profile modulates the Maximum AC Rate entered below.
Max Flow
The peak air change rate, expressed in air changes per hour, litres per second, litres per second per m2 of floor area or litres per second per person. The latter will factor in the number of people as defined within the current people internal gains.
Adjacent Condition
In VE Compliance the Adjacent Condition, which specifies the source of the air, is forced to ‘External Air’.
