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C405.2.1.1 Occupant sensor control function. 4. Have program back-up capabilities,which <br /> Occupant sensor controls shall comply with the prevent the loss of program and time settings <br /> following: for at least 10 hours,if power is interrupted. <br /> 1. Automatically tum off lights within 30 5. Include an override switching device that <br /> minutes of all occupants leaving the space. complies with the following: <br /> 2. Be manual on or shall be controlled to 5.1 The override switch shall be a manual <br /> automatically turn the lighting on to not more �ntrol. <br /> than 50 percent power. 5.2 The override switch,when initiated, <br /> Exception:Full automatic-on controls shall shall permit the controlled lighting to <br /> be pernutted to control lighting in public remain on for not more than 2 hours. <br /> corridors,stairways,restrooms,primary <br /> building entrance areas and lobbies,and areas 5.3 Any individual override switch shall <br /> where manual-on operation would endanger control the lighting for an area not larger <br /> the safety or security of the room or building ��5,000 square feet(465 m ). <br /> occupants. Exceptions: <br /> 3. Shall incorporate a manual control to allow 1. Within malls,arcades,auditoriums,single <br /> occupants to turn lights off. tenant retail spaces,industrial facilities and <br /> arenas: <br /> C405.2.1.2 Occupant sensor control function in 1.1. The time limit shall be permitted to <br /> warehouses.In warehouses,the lighting in aisleways be greater than 2 hours provided the <br /> and open areas shall be controlled with occupant override switch is a captive key <br /> sensors that automatically reduce lighting power by device. <br /> not less than 50 percent when the areas are 1.2. The area controlled by the override <br /> unoccupied.The occupancy sensor shall control switch is permitted to be greater than <br /> lighting in each aisleway independentiy,and shall not 2 <br /> 5,000 square feet(465 m),but shall <br /> control lighting beyond the aisleway being controlled not be greater than 20,000 square feet <br /> by the sensor. (1860 m2). <br /> ** C405.2.2 Time switch controls.Each area of the 2. Where provided with manual control,the <br /> building that is not provided with occupant sensor following areas are not required to have <br /> controls complying with Section C405.2.1.1 or digital light reduction control: <br /> timer switch controls complying with Section C405.2.6 2.1. Spaces that have only one luminaire <br /> shall be provided with time switch controls complying with a rated power of less than 100 <br /> with Section C405.2.2.1. watts. <br /> ' Egception:Where a manual control provides light 2•2. Spaces that use less than 0.6 watts per <br /> : reduction in accordance with Section C405.2.2.2, square foot(6.5 W!m). <br /> 2.3. Corridors,equipment rooms,public <br /> : automatic controls shall not be required far the lobbies,electrical or mechanical <br /> : following: <br /> rooms. <br /> 1. Sleeping units. <br /> 2. Spaces where patient care is directly provided. C405.2.2.2 Light reduction controls.Spaces <br /> 3. Spaces where an automatic shutoffwould required to have light reduction controls shall have a <br /> endanger occupant safety or security. manual control that allows the occupant to reduce the <br /> 4. Lighting intended for continuous operarion. connected lighting load in a reasonably unifornz <br /> 5. Shop and laboratory classrooms. illumination pattern by at least 50 percent.Lighting <br /> reduction sha11 be achieved by one of the following <br /> C405.2.2.1 Time switch control function.Each approved methods: <br /> space provided with time switch controls shall also be 1. Controlling all lamps or luminaires. <br /> provided with a manual control for light reduction in <br /> accordance with Section C405.2.2.2.Time switch 2. Dual switching of alternate rows of <br /> controls shall comply with the following: luminaires,alternate luminaires or altemate <br /> 1. Have a minimum 7 day clock. lamps. <br /> 2. Be capable of being set for 7 different day 3. Switching the rniddle lamp luminaires <br /> types per week. independently of the outer lamps. <br /> 3. Incorporate an automatic holiday"shut-off' 4. Switching each luminaire or each lamp. <br /> feature,which turns off all contro]led loads for Exception:Light reduction controls are not <br /> at least 24 hours and then resumes normally required in daylight zones with daylight responsive <br /> scheduled operations. controls complying with Section C40S.2.4. <br /> CE-76 2015 Washington State Energy Code <br />