For SBEM purposes this dialog defines the characteristics of both lighting systems and lighting control systems, which SBEM models using the NCM simple lighting control method.
Individual room gains are not displayed when the Method is set to SBEM, so all lighting parameters are set in this dialog.
A min and max lighting lux level specified in the NCM activities database. If the entered design illuminance is less than the minimum lighting level the general power density will be automatically pro-rated (up) to the activity’s NCM minimum lighting level.
As the text on the above dialog indicates, all of this data are valid inputs to SBEM. Details are provided in the VE Compliance user guide and the iSBEM manual.
For all three design options, the EPC mode does require a lamp type to be specified, for the purpose of the Recommendations Report.
Tick Are there destratification fans in this room? to make allowance for this feature in heating demand calculations.
Air permeability at 50 Pa (m3/(h.m2)) specifies the permeability parameter to be used to calculate the room’s infiltration rate (which in SBEM is specified at room level).
Domestic hot water dead-leg pipe length in this room is a parameter affecting hot water distribution losses.
