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Are controls required?

April 26, 2017controls

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Are controls required?

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Lighting controls are also addressed by the EPAct 2005 tax deduction provisions, both directly and through the ASHARE/IESNA 90.1-2001 standard. ASHRAE/IESNA 90.1-2001 does require that new buildings larger than 5000 sq. ft. have automatic shut-off of in all spaces as well as having controls readily accessible in the space. A space is defined as an area enclosed by four or more floor-to-ceiling walls. Per ASHRAE/IESNA 90.1-2001, in retrofits, you do not have to modify the exiting controls, but if you replace more than 50% of the luminaires (fixtures) or change the controls, then the controls have to meet the ASHRAE/IESNA 90.1 “space controls” requirements. In addition to the ASHRAE/IESNA 90.1-2001 control requirements, EPACT 2005 requires that bi-level switching be used when following the Interim Rules.