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<br /> 231 RE�IS�E,�2ED I
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<br /> ^ /ED H. ELSON R '�
<br /> � STATE QF�ASHINGT��
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<br /> Exception:Dwelling units within commercial _ �
<br /> buildings shall not be required to comply with Sections
<br /> C405.2 through C40S.5 provided that they comply with C405.2.1.1 Occapant sensor control function. 4. Have program back-up capabilities,which �
<br /> Occupazrt sensor controls shall comply with the revent the loss of ro ram and tinne settin s
<br /> Section R404.1. p p g g
<br /> � following: for at least 10 hours,ifpower is interrupted.
<br /> C405.2 Lighting controls(Mandatory}.Lighting 1. Autamaticaliy turn off lights within 30 5. Include an overrida switching device that �
<br /> . systems shalt be provided with controls as specified in minutes of all occupants leaving the space. complies with the foliowing. i
<br /> ' Sections C�05.2.i through C405.2.$. 2. Be manual on or shall be controlled to I
<br /> 5.1 The override switch shall be a znanual �
<br /> Exception:Except for speci�c applicatian controls • automaticaIly turn the lighting on to not more contral. � '''�' �
<br /> requixed by Section C405.2.5: ; than 50 percent power. � � o �
<br /> Exception:Fuli automatiaon c�ntrols shall 5.2 The override switch,when initiated,
<br /> 1. Areas designated as security or etnergency areas b e p e r m i t t e d t o c o n t r o l l i g h t i ng i n p u b l i c shall permit the contralled lighting to � N � V
<br /> that are required to be continuously lighted. remain on for not more than 2 hours. � � � �
<br /> corridors,stairways,restrooms,primary -� � �/}
<br /> 2. Interior exit stairways,interior exit ramps and building entrance areas and lobbies,and areas 5.3 Any individual override s�vitch shall �
<br /> exit passageways. where manuai-on operation would endanger control the lightin�far an area not larger � � � �
<br /> 3. Emerge�cy egress lighting that is normally off. than 5,000 square feet(46S m2). �••� �,
<br /> the safety or security of the raom or building � oNp �
<br /> 4. Industrial or manufacturing process areas,as . occupants. Exceptions� �( � 4) � � �
<br /> may be required for production and safety. : � �f � �
<br /> 5. Lutninaire-level lighting controls(LLLC)that : 3. Shall incorporate a manuai control ta allow 2. Within malis,arcades,auditoriums,single ' � � d: o
<br /> . occupants to turn lights off. tenant retail spaces,industrial facilities and �---i � � b- tn
<br /> control interior lighting.The LLLC lum.inaire . d- �
<br /> . shall be indepetidently configured to: : C405.2.1.2 Occapant sensor coutrol function in �r 1na�The tjme lzmzt shall be permitted fo E � � � �
<br /> 5.1. Monitor occupant activity to brighten or : warehouses.In warehouses,the lighting in aisleways � �N
<br /> be greater than 2 hours pravided the (- '�
<br /> dim its lighting when occupied or : and open areas shail be controlled with occupant override switch is a captive key � 4'
<br /> unoccupied,respectively. : sensors that automatically reduce lighting power by device. I � � � �
<br /> 5.2. Monitor ambient light(both electric light : not less than 50 peroent when the areas are 1.2. The area controlled by the overrida � n � CT? � �
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<br /> and daylight)and brighten ar dim eZectric : unoccupied.The occupancy sensor shail control � Vr/
<br /> p switch is permitted to be greater than �. (u Q �
<br /> light to maintain desu-ed light level. . li�ting in each aisleway independently,and shall not �
<br /> ' contral li tin b 5,000 square feet(465�n),but sha11
<br /> 53. Configuration and reconfiguration of ; �;h' g eyond the aisIeway being controlled not be greater than 20,000 square feet Q � � �
<br /> performance parameters,including bright . by the sensox. (I 860 m2). � � � .�+ �?
<br /> and dim setpoints,time-outs,dimming, : ** C405.2.2 Time switch controls.Each area of the 2. Where provided�vith manual control,the �
<br /> fade rates,sensor sensitivity adjustments, p building that is not provided with occupant sensor following areas are not required to have j
<br /> and wireless zoning cou�'igurations,for ■ controls complying with Section C40S.2.1.1 ar digital light reduction control: �
<br /> each eontrol strategy. p timar switeh controis complying with Section C405.2.b 2•1• Spaces that have only ane luminaire }
<br /> 5.4. Meet the apexational and commissioning � shalt be provided with time switch controls complying with a rated power of�ess than 100 �
<br /> requirements of Sections C405.2.1, s with Section C445.2�.1. watts. �
<br /> C405.2.2,C405.2.3,C405�.4,aud C408. � � Exception: Where a manual control provides light. 2.2• Spaces that use less than O.b watts per
<br /> * : reduction in aecordance with Section C405.2.2.2 square foot(6.5 W/m').
<br /> C405.2.1 Occupancy sensor cof►trols.Occupancy ' 2.3. Conridors,equipment rooms,public
<br /> sensor cantrols shall be installed to control lights in the � automatic controls sha(1 not be required for the `
<br /> a follo�vin lobbies,electrical or mechanical ;
<br /> following space types: g' rooms. '
<br /> 1. Classrooms/lecture/training raoms. 1. Sleeping units.
<br /> 2. Conference/meetinglmultipurpose rooms. 2. Spaces where patiant care is directly provided. C405.2.2.2 Light reduction contt�ols.Spaces
<br /> 3. S aces where an automatic shutoffwould required to have light reduction controls shall have a
<br /> 3. Capy/print rooms. e dan er occu ant safet or securit manual control that allows the occupant to reduce the
<br /> 4. Lounges. g p Y Y•
<br /> 5. Employee lunch and break rooms. 4. Lighting intended for cantinuous operatian. coruiected lighting load in a reasonably ttiniform
<br /> 5. Sho and taborato classrooms. illumination pattern by af least 50 percent.Lighting �„'
<br /> . 6. Private offices. � � reduction shali be achieved by one of the following
<br /> 7. Rastrooms. C405.2.2.1 Time swifch coutroi funetian.Each approved methods: �
<br /> 8. Storage rootns. space provided with time switch controls shall aiso be 1. Controlling ati lamps or luminaires. .' ( � ��
<br /> _.___.______r_�..___�____.____��,__.__.___T_________�_____. -�__�_______._ 9. 3anitorial closets. -• provided with a manual controi for light reduction in � m J �
<br /> S�CTION C405 10. Locker rooms. accordance with Section CG05.2.2.2.Time switch 2. Duat swztching af alternate rows of E �,� �
<br /> ELECTRICAL PC�WER AND LIGHTING SYS"f�MS 11. Other spaces 300 square feet(28 m2)or less that controls shall comply with the following: luminaires,alternate lumiaaires or alternate � aJ
<br /> are enclosed by floor-to-ceiling height 1. Have a minimum 7 day clock. lamps. ? W �
<br /> : C405.1 Generai(mandatory).This section covers partitions. 2. Be capable of being set for 7 different day 3. Switching the middle lamp luminaires � �
<br /> � lighting system controls,the maximum Iighting power for 12. Warehouse spaces. types per week. independently of the outer lamps. r �
<br /> . interior and exterior applications,electrical energy ' 3. Incorporate an automatic holiday"snut-off' 4. Switching each luminaire or eaeh lamp. � j ,�,,,
<br /> : consumption,vertical and horizontal transportation feature,which turns off alt contralled loads for Exeeption:Light reduction controls are not "��
<br /> : systerns,and minimum efficiencies for motars and � f r1 �
<br /> at least 24 hours and then resumes normall re uired in da h t zones with da la ht res onsive � �
<br /> : transformers. scheduled operations, y controls camply g with Section C405:2.4 p �M1 � L,,,,
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<br /> ' 2015 Washington State Energy Gode ___ _ CE-75 CE-76 2015 Washington State Energy Coda � >
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<br /> C405.2.3 Manual eontrols Manual controls for lights 5. Daylight responsive controls shall be canfigured ° e ■ � �
<br /> � „ height from the floor to the top ofthe 5. Where located in existing buildin;s,the ■ �
<br /> sha11 comply with the follawing: to completely shut off all controlled lights in that . � fenestration,and longitudinally from the edge visible transmittance of the Fenestration is no : �
<br /> 1. Shall bs readily aceessible to occupants. zone. � v , ; ^ ��
<br /> ■ � of the fenestration to the nearest full height less than 0.20. ■ � �.✓ �
<br /> 2. Shal]be located where the controlled lights are 6. Lights in sidelight daylight zones in accordance • ■ wall or u to 2 feet 610 mm whichever is ' ? �
<br /> visibie,or shall identi the area served b the with Section C�105.2.4.2 facin different cardina2 : ; ' p { �' 6. In parking garages with floor area adjacent to ■ : �
<br /> �Y Y � ! � less,as indicated in Figure C4fl5.2.4.2(1}.The perimeter wall openings,the daylight zone : �
<br /> lights and indicate their status, orientations(i.e.,within 45 degrees of due north, . . secondar da li ht zone be ins at the ed e of ■ j
<br /> ■ . y y g g g shall inciude the area within 20 feet of any .
<br /> . east,south,west)shall be controlled . . the primary dayl'aght zone and e�ctends laterally ortion of a erimeter wall that has a net : � �
<br /> C40S.2.4 Daylight responsive controls.l�aylight ■ , p p
<br /> � independently of each other. � . to the nearest full height wall,or up to 2.0 opening to wall ratio of at least 4Q percent. � i
<br /> . responsive cantrols complying with Section C405.2.4.1 ■
<br /> : shall be provided to control the lighting within daylight Exception:Up to two light fixtures in each � � times the height from the floor to the top of the � �
<br /> space are pennitted to be controlted together . . fenestration,whichever is less,as indicated in C405.2.4.3 Toplight daylight zone,The toplight
<br /> : zones in the following spaces: ■ ■
<br /> � with lighting in a daylight zone facing a . . Figure C405.2.4.2{1}, daylight zone is ihe floor area underneath a roof
<br /> 1. Sidelight daylight zones as deftned in Section ■ ■ fenestration assembly which complies with the f
<br /> ■ different cardinal orientation. . . 2. Where the fenestration is located in a rooftop
<br /> . C405.2.4?with more than two generai lighting ■ p folIowing: �
<br /> � 7. Incorporate time-delay circuits ta prevent ■ ■ monitor the sideli ht da li t zone shall �
<br /> . v fixtures with.in the primary and secondary ■ . � g y �
<br /> cycling of light level changes of less than three . ■ extend laterally to the nearest obstruction that 1. The toplight daylzght zone shall extend �
<br /> : sidelight daytight zones. ■ ' laterall and lon itu
<br /> ■ � � Y � minutes. . B is taller than 0.7 times the ceilin�hei�ht or up Y g dinally beyond the edge vf
<br /> • � 2. To li t da li t zones as defined in Section ° ' to 1 A times the hei h � � �
<br /> � 8. The maximum area a single daylight responsive ■ o g t from the floor to the the roof fenestration assennbly to the nearest
<br /> C405.2.4.3 with more ttaan two general lighting ■ • �
<br /> � control device serves shall not exceed 2 500 . . bottom of the fenestratian,whichevex is less, obstruction that is taller than 0.7 titnes the �
<br /> . fia�tures within the daylight zone. z ' . ■ ceilin hei t or ii to '
<br /> ■ squara feet(232 m}. . . and longitudinally from the edge of the S �►, p 0.7 times the ceiling i
<br /> � Exception:Dayli�ht responsive contrals are not ■ ° fenestration to the nearest obstruction that is height,whichaver is less,as indicated in
<br /> a 9. �ccupant override capability of daylight ■ ' i
<br /> � . required for the following: � � ■ Fi ure C405.2.4.3 1 . �
<br /> dimming controls is not permitted,other than a . . taller than 0.�tirnes the ceiling height,or up to g � )
<br /> 1. Spaces in health care facilities where patient reduction of li ht out ut from the level ; : 0.25 times the height from the floor to the 2. Where toplight daylight zones overlap wiCh
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<br /> care is directly provided. � p ■ ; bottotn of the fenest�ation,whiehever is lass, sidelight daytight zones,lights within the :
<br /> established by tha daylighting controls. .
<br /> 2. Dwelling units and sieeping units. ■ �, as indicated in Figures C405.2.4.2(2)and overlapping area shall be assigned to the : Mark Date
<br /> 3. Lighting that is required to have specific C445.2.4.11 Dimming.Daylight res�onsive � � C405.2.4.2(3). toplight daylight zone. :
<br /> application control in accordance with Section controls sha11 be configured to automatically � ; 3. Where clerestory fenestratio�r is located in a 3. Where located in existing bt2ildings,the � �``���° �
<br /> C405.2.4. reduce the power of general li ghtin g in the da yli ght � e w a l l,t h e s i d e l i g h t d a y l i g h t z o n e i n c l u d e s a p r o d u c t o f t h e v isi b le transmi t tance o f t he roo f
<br /> 4. Sidelight daylight zones on the first floor zone in response to availabte daylight,while . • tateral area twice the depth of the clerestory fenestration assembly and the area of the
<br /> � above grade in Group A-2 and Gro�ip M maintaining uniform illumination in the space A � fenestration height,projected upon the floor at rough opening of the roof fenestration
<br /> occu ancies. through one of the following methods: . .
<br /> P � . a 45 degree angte frorn the center of the assembly,divided by the area of the daylight
<br /> � 5. Daylight zones where the total proposed I. Continuous dimming using dimming ; � clerestory fenestratian.The longitudinal width zone is no less than 0.008. I
<br /> � lighting pawer density is less than 35 percent ballasts/dimming drivers and daylight-sensing . � of the daylight zone is calcutated the same as 4. Where located under atrium fenestration the ■
<br /> . of the tighting power allowance per Section automatic controls.The system shall reduce o ■ for fenestration located in a wall.Where the 45 daylight zone shall include the bottom floor : �
<br /> : C405.4.2, fighting power continuously to less than 1S : � degree angie is interrupted by an obstruction area directly beneath the atrium fenestration, : �
<br /> " C405.2.4.1 Daylight responsive controls fnnction. percent of rated power at maximum light � � greater than 0.7 tiznes the ceiling height,the and the top floor directly under#he atrium a �
<br /> ° Where required,daylight responsive controls shall be outpt�t. � q daylight zone shall remain the same laterai fenestration,as indicated in Figure : '
<br /> � provided within each space for control of ii;hts in 2. Stepped dimming using mul#i-level switchinb � � area but be located between the clerestory and C405.2.4.3(2).The daylight zone area at the � !
<br /> . that s ace and shall com 1 with all of the faflowin and da li ht-sensin controls.The s stem . ■ the obstruction,as indicatad in Figure top floor is calculatet!the same as for a : � .
<br /> P I�Y $� Y b g Y � C405.2.4.2 4 . ' ' DATE:
<br /> ° 1. Lights in primary sidelight daylight zones shall shall provide a minimum of two steps of : e � ) toplight daylight zone.Intermediat�tevels o
<br /> � uniform illumination between 0 and 100 ; ■ 4. If the rough openrng area of a vertical below the top floor that are not direetly o � �
<br /> . be controlled independently of lights in p p � • � fenestration assembly is less than 10 pexcent of beneath tha atriurn are not included. � Q �-.
<br /> p secondary sidelight daylight zones in accordance ercent of rated ower at maximum li ht . � ; �
<br /> • output.Each step shall be in equal increments ■ ■ the catculated primary dayiight zone area for ■ ' OC �
<br /> i with Section C405.2.4.2. p plus or minus 10 percent. : : this fenestration,it does not qualify as a � ! � W
<br /> : Exception: Spaces enclosed by walls or of ower, . daylight zone. i � � �
<br /> : eeiling height partitions with no more than General lighting within daytight zones in offices, � � O
<br /> ' three general Iighting fixtures may have classrooms,laboratories arzd library reading rooms i � W
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<br /> : combined daylight zone control of primary shalt use the continuous dimming method. Stepped a - ------ _ _ ___ ____ _ ___ _ W �
<br /> ; and secondary daylight zones provided dimming is not allawed as a method of daylight � ---- �-_ ; Lfy (,� � �
<br /> ; uniforna illumination can be achieved. zone control in these spaces. � � O� � � � _
<br /> � 2. Lights in topli�ht daylight zones in accardance C405.2.4.2 Sid�light daylight zone.The sidelight � W
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<br /> � with Section C�05.2.4.3 shall be controtied daydightzone is the floor area adjacent to verticul * � o o � �
<br /> � independently of lights in sidelight dayLight fenestration�vhich complies with the following: � j � � � Q
<br /> � zones in accordance with Section C405.2.4.2. 1. Where the fenestration is located in a wall,the � � '
<br /> ■ 3. Daylight responsive contrals within each space sidelight daylight zone includes the primary . ' ' �
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<br /> � shall be configured so that they can be calibrated and secondary daylight zones.The primary : �� -.._.___ _ � � � W
<br /> � from within that space by authorized persotu�el. daylight zone shall extend laterally to the � V W � �
<br /> . nearest full heibht wall,or up to 1.0 times the . Lt,1 W
<br /> � 4. Calibration mechanisms shall be readily � �
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<br /> " accessible. � v z a
<br /> 2015 Washington State Energy Code CE-77
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