Lighting Groups

This section describes lighting groups, which are used for energy calculation purposes.

Common Lighting Group Information

The values that can be specified for lighting groups are listed below.

Subtract Area from Room Area: Whether the area occupied by the lights in this lighting group is subtracted from the room area. This will have an effect on the energy calculations.

Height: The height of the lighting group, if it is a vertical area. See the Distance Input Format section for more information on specifying this elevation.

LF Mounting Height: The height at which the light fixtures in the lighting group are mounted. See the Distance Input Format section for more information on specifying this elevation.

LF Throw Distance: The distance from light fixtures to the lighting group area. See the Distance Input Format section for more information on specifying this distance.

Lighting Power Density: The amount of light allowed for the area.

Illuminance Category: The IESNA illuminance category for the group. The categories are based upon the type of task being performed in the area. Lower letters correspond to lower foot-candle levels. Higher letters correspond to higher foot-candle levels.


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