At the Zone level of the Building Tree, Lighting tab, we offer the option to “Override” the Lighting Power Density (LPD) for a Zone (ie to input your own LPD instead of listing the fixtures). Taking this approach when doing Prescriptive compliance is not appropriate since Prescriptive requires you to document the installed lighting fixtures, not just indicate the LPD. The Use Installed LPD option should be selected, and the actual light fixtures should be input into the Room level of the Building Tree.
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